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package Kafka::Protocol; |
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=head1 NAME |
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Kafka::Protocol - Functions to process messages in the Apache Kafka protocol. |
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=head1 VERSION |
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This documentation refers to C<Kafka::Protocol> version 1.08 . |
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=cut |
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use 5.010; |
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use strict; |
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use warnings; |
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our $VERSION = 'v1.08'; |
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use Exporter qw( |
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import |
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); |
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our @EXPORT_OK = qw( |
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decode_fetch_response |
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decode_metadata_response |
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decode_offset_response |
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decode_produce_response |
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decode_api_versions_response |
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decode_find_coordinator_response |
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decode_offsetcommit_response |
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decode_offsetfetch_response |
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decode_saslhandshake_response |
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encode_fetch_request |
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encode_metadata_request |
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encode_offset_request |
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encode_produce_request |
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encode_api_versions_request |
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encode_find_coordinator_request |
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encode_offsetcommit_request |
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encode_offsetfetch_request |
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encode_saslhandshake_request |
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_decode_MessageSet_template |
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_decode_MessageSet_array |
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_encode_Message |
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_encode_MessageSet_array |
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_encode_string |
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_pack64 |
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_unpack64 |
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_verify_string |
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$DEFAULT_APIVERSION |
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$IMPLEMENTED_APIVERSIONS |
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$BAD_OFFSET |
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$COMPRESSION_CODEC_MASK |
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$CONSUMERS_REPLICAID |
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$NULL_BYTES_LENGTH |
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$_int64_template |
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); |
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6247
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use Compress::Snappy (); |
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7001
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6309
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use Compress::LZ4Frame (); |
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8108
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use Const::Fast; |
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6697
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use Gzip::Faster qw( gzip gunzip ); |
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16276
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898
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709
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use Params::Util qw( |
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_ARRAY |
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_HASH |
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_SCALAR |
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_STRING |
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100
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); |
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68
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534
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use Scalar::Util qw( |
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dualvar |
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82
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); |
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5942
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use String::CRC32; |
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7240
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594
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72
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93
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use Try::Tiny; |
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27
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814
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73
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74
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2305
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use Kafka qw( |
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$BITS64 |
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$BLOCK_UNTIL_IS_COMMITTED |
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$COMPRESSION_GZIP |
78
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$COMPRESSION_NONE |
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$COMPRESSION_SNAPPY |
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$COMPRESSION_LZ4 |
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$DEFAULT_MAX_WAIT_TIME |
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%ERROR |
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$ERROR_COMPRESSION |
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$ERROR_MISMATCH_ARGUMENT |
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$ERROR_REQUEST_OR_RESPONSE |
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$NOT_SEND_ANY_RESPONSE |
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$WAIT_WRITTEN_TO_LOCAL_LOG |
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107
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); |
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21
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89
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13
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848
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use Kafka::Exceptions; |
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34
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13
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837
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90
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13
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101453
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use Kafka::Internals qw( |
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$APIKEY_FETCH |
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$APIKEY_METADATA |
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$APIKEY_OFFSET |
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$APIKEY_PRODUCE |
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$APIKEY_APIVERSIONS |
96
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$APIKEY_FINDCOORDINATOR |
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$APIKEY_OFFSETCOMMIT |
98
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$APIKEY_OFFSETFETCH |
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$APIKEY_SASLHANDSHAKE |
100
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$PRODUCER_ANY_OFFSET |
101
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format_message |
102
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debug_level |
103
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13
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13
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129
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); |
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13
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35
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104
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105
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=head1 SYNOPSIS |
106
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107
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use 5.010; |
108
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use strict; |
109
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use warnings; |
110
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111
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use Data::Compare; |
112
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use Kafka qw( |
113
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$COMPRESSION_NONE |
114
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$ERROR_NO_ERROR |
115
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$REQUEST_TIMEOUT |
116
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$WAIT_WRITTEN_TO_LOCAL_LOG |
117
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); |
118
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use Kafka::Internals qw( |
119
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$PRODUCER_ANY_OFFSET |
120
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); |
121
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use Kafka::Protocol qw( |
122
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decode_produce_response |
123
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encode_produce_request |
124
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); |
125
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126
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# a encoded produce request hex stream |
127
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my $encoded = pack( q{H*}, '00000049000000000000000400000001000005dc0000000100076d79746f7069630000000100000000000000200000000000000000000000148dc795a20000ffffffff0000000648656c6c6f21' ); |
128
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129
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# a decoded produce request |
130
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my $decoded = { |
131
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CorrelationId => 4, |
132
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ClientId => q{}, |
133
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RequiredAcks => $WAIT_WRITTEN_TO_LOCAL_LOG, |
134
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Timeout => $REQUEST_TIMEOUT * 100, # ms |
135
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topics => [ |
136
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{ |
137
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TopicName => 'mytopic', |
138
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partitions => [ |
139
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{ |
140
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Partition => 0, |
141
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MessageSet => [ |
142
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{ |
143
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Offset => $PRODUCER_ANY_OFFSET, |
144
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MagicByte => 0, |
145
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Attributes => $COMPRESSION_NONE, |
146
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Key => q{}, |
147
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Value => 'Hello!', |
148
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}, |
149
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], |
150
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}, |
151
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], |
152
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}, |
153
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], |
154
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}; |
155
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156
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my $encoded_request = encode_produce_request( $decoded ); |
157
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say 'encoded correctly' if $encoded_request eq $encoded; |
158
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159
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# a encoded produce response hex stream |
160
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$encoded = pack( q{H*}, '00000023000000040000000100076d79746f706963000000010000000000000000000000000000' ); |
161
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162
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# a decoded produce response |
163
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$decoded = { |
164
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CorrelationId => 4, |
165
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topics => [ |
166
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{ |
167
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TopicName => 'mytopic', |
168
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partitions => [ |
169
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{ |
170
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Partition => 0, |
171
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ErrorCode => $ERROR_NO_ERROR, |
172
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Offset => 0, |
173
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}, |
174
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], |
175
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}, |
176
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], |
177
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}; |
178
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179
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my $decoded_response = decode_produce_response( \$encoded ); |
180
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say 'decoded correctly' if Compare( $decoded_response, $decoded ); |
181
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182
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# more examples, see t/*_decode_encode.t |
183
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184
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=head1 DESCRIPTION |
185
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186
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This module is not a user module. |
187
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188
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In order to achieve better performance, |
189
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functions of this module do not perform arguments validation. |
190
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191
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The main features of the C<Kafka::Protocol> module are: |
192
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193
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=over 3 |
194
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195
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=item * |
196
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197
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Supports parsing the Apache Kafka protocol. |
198
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199
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=item * |
200
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201
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Supports Apache Kafka Requests and Responses (PRODUCE and FETCH). |
202
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Within this package we currently support |
203
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access to PRODUCE, FETCH, OFFSET, METADATA Requests and Responses. |
204
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205
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=item * |
206
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207
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Support for working with 64 bit elements of the Kafka protocol on 32 bit systems. |
208
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209
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|
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=back |
210
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211
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|
|
=cut |
212
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213
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|
|
# A Guide To The Kafka Protocol 0.8: |
214
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# https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol |
215
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# |
216
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# -- Protocol Primitive Types |
217
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# int8, int16, int32, int64 |
218
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# Signed integers |
219
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# stored in big endian order. |
220
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# bytes, string |
221
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# consist of a signed integer |
222
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# giving a length N |
223
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# followed by N bytes of content. |
224
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# A length of -1 indicates null. |
225
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# string uses an int16 for its size, |
226
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# and bytes uses an int32. |
227
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# Arrays |
228
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# These will always be encoded as an int32 size containing the length N |
229
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# followed by N repetitions of the structure |
230
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# which can itself be made up of other primitive types. |
231
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# |
232
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# -- N.B. |
233
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# - The response will always match the paired request |
234
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# - One structure common to both the produce and fetch requests is the message set format. |
235
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# - MessageSets are not preceded by an int32 like other array elements in the protocol. |
236
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# - A message set is also the unit of compression in Kafka, |
237
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# and we allow messages to recursively contain compressed message sets. |
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# |
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# -- Protocol Fields |
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# ApiKey => int16 That identifies the API being invoked |
241
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# ApiVersion => int16 This is a numeric version number for this api. |
242
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# Currently the supported version for all APIs is 0. |
243
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# Attributes => int8 Metadata attributes about the message. |
244
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# The lowest 2 bits contain the compression codec used for the message. |
245
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# ClientId => string This is a user supplied identifier for the client application. |
246
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# CorrelationId => int32 This is a user-supplied integer. |
247
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# It will be passed back in the response by the server, unmodified. |
248
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# It is useful for matching request and response between the client and server. |
249
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# Crc => int32 The CRC32 of the remainder of the message bytes. |
250
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# ErrorCode => int16 The error from this partition, if any. |
251
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# Errors are given on a per-partition basis |
252
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# because a given partition may be unavailable or maintained on a different host, |
253
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# while others may have successfully accepted the produce request. |
254
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# FetchOffset => int64 The offset to begin this fetch from. |
255
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# HighwaterMarkOffset => int64 The offset at the end of the log for this partition. |
256
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# This can be used by the client to determine how many messages behind the end of the log they are. |
257
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# - 0.8 documents: Replication design |
258
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# The high watermark is the offset of the last committed message. |
259
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# Each log is periodically synced to disks. |
260
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# Data before the flushed offset is guaranteed to be persisted on disks. |
261
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# As we will see, the flush offset can be before or after high watermark. |
262
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# - 0.7 documents: Wire protocol |
263
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# If the last segment file for the partition is not empty and was modified earlier than TIME, |
264
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# it will return both the first offset for that segment and the high water mark. |
265
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# The high water mark is not the offset of the last message, |
266
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# but rather the offset that the next message sent to the partition will be written to. |
267
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# Host => string The brokers hostname |
268
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# Isr => [ReplicaId] The set subset of the replicas that are "caught up" to the leader - a set of in-sync replicas (ISR) |
269
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# Key => bytes An optional message key |
270
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# The key can be null. |
271
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# Leader => int32 The node id for the kafka broker currently acting as leader for this partition. |
272
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# If no leader exists because we are in the middle of a leader election this id will be -1. |
273
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# MagicByte => int8 A version id used to allow backwards compatible evolution of the message binary format. |
274
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# MaxBytes => int32 The maximum bytes to include in the message set for this partition. |
275
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# MaxNumberOfOffsets => int32 Kafka here is return up to 'MaxNumberOfOffsets' of offsets |
276
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# MaxWaitTime => int32 The maximum amount of time (ms) |
277
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# to block waiting |
278
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# if insufficient data is available at the time the request is issued. |
279
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# MessageSetSize => int32 The size in bytes of the message set for this partition |
280
|
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|
# MessageSize => int32 The size of the subsequent request or response message in bytes |
281
|
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# MinBytes => int32 The minimum number of bytes of messages that must be available to give a response. |
282
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# If the client sets this to 0 the server will always respond immediately. |
283
|
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# If this is set to 1, |
284
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# the server will respond as soon |
285
|
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# as at least one partition |
286
|
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# has at least 1 byte of data |
287
|
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# or the specified timeout occurs. |
288
|
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# By setting higher values |
289
|
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# in combination with the timeout |
290
|
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# for reading only large chunks of data |
291
|
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|
# NodeId => int32 The id of the broker. |
292
|
|
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|
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|
|
# This must be set to a unique integer for each broker. |
293
|
|
|
|
|
|
|
# Offset => int64 The offset used in kafka as the log sequence number. |
294
|
|
|
|
|
|
|
# When the producer is sending messages it doesn't actually know the offset |
295
|
|
|
|
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|
|
# and can fill in any value here it likes. |
296
|
|
|
|
|
|
|
# Partition => int32 The id of the partition the fetch is for |
297
|
|
|
|
|
|
|
# or the partition that data is being published to |
298
|
|
|
|
|
|
|
# or the partition this response entry corresponds to. |
299
|
|
|
|
|
|
|
# Port => int32 The brokers port |
300
|
|
|
|
|
|
|
# ReplicaId => int32 Indicates the node id of the replica initiating this request. |
301
|
|
|
|
|
|
|
# Normal client consumers should always specify this as -1 as they have no node id. |
302
|
|
|
|
|
|
|
# Replicas => [ReplicaId] The set of alive nodes that currently acts as slaves for the leader for this partition. |
303
|
|
|
|
|
|
|
# RequiredAcks => int16 Indicates how many acknowledgements the servers should receive |
304
|
|
|
|
|
|
|
# before responding to the request. |
305
|
|
|
|
|
|
|
# If it is 0 the server does not send any response. |
306
|
|
|
|
|
|
|
# If it is 1, the server will wait the data is written to the local log before sending a response. |
307
|
|
|
|
|
|
|
# If it is -1 the server will block until the message is committed by all in sync replicas before sending a response. |
308
|
|
|
|
|
|
|
# Size => int32 The size of the subsequent request or response message in bytes |
309
|
|
|
|
|
|
|
# Time => int64 Used to ask for all messages before a certain time (ms). |
310
|
|
|
|
|
|
|
# There are two special values. |
311
|
|
|
|
|
|
|
# Specify -1 to receive the latest offset (this will only ever return one offset). |
312
|
|
|
|
|
|
|
# Specify -2 to receive the earliest available offsets. |
313
|
|
|
|
|
|
|
# Timeout => int32 This provides a maximum time (ms) the server can await the receipt |
314
|
|
|
|
|
|
|
# of the number of acknowledgements in RequiredAcks. |
315
|
|
|
|
|
|
|
# The timeout is not an exact limit on the request time for a few reasons: |
316
|
|
|
|
|
|
|
# (1) it does not include network latency, |
317
|
|
|
|
|
|
|
# (2) the timer begins at the beginning of the processing of this request |
318
|
|
|
|
|
|
|
# so if many requests are queued due to server overload |
319
|
|
|
|
|
|
|
# that wait time will not be included, |
320
|
|
|
|
|
|
|
# (3) we will not terminate a local write |
321
|
|
|
|
|
|
|
# so if the local write time exceeds this timeout it will not be respected. |
322
|
|
|
|
|
|
|
# To get a hard timeout of this type the client should use the socket timeout. |
323
|
|
|
|
|
|
|
# TopicName => string The name of the topic. |
324
|
|
|
|
|
|
|
# Value => bytes The actual message contents |
325
|
|
|
|
|
|
|
# Kafka supports recursive messages in which case this may itself contain a message set. |
326
|
|
|
|
|
|
|
# The message can be null. |
327
|
|
|
|
|
|
|
|
328
|
|
|
|
|
|
|
our $_int64_template; # Used to unpack a 64 bit value |
329
|
|
|
|
|
|
|
if ( $BITS64 ) { |
330
|
|
|
|
|
|
|
$_int64_template = q{q>}; |
331
|
|
|
|
|
|
|
# unpack a big-endian signed quad (64-bit) value on 64 bit systems. |
332
|
35284
|
|
|
35284
|
|
227871
|
*_unpack64 = sub { $_[0] }; |
333
|
|
|
|
|
|
|
# pack a big-endian signed quad (64-bit) value on 64 bit systems. |
334
|
40328
|
|
|
40328
|
|
274230
|
*_pack64 = sub { pack( q{q>}, $_[0] ) }; |
335
|
|
|
|
|
|
|
} else { |
336
|
|
|
|
|
|
|
eval q{ require Kafka::Int64; } ## no critic |
337
|
|
|
|
|
|
|
or die "Cannot load Kafka::Int64 : $@"; |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
$_int64_template = q{a[8]}; |
340
|
|
|
|
|
|
|
# unpack a big-endian signed quad (64-bit) value on 32 bit systems. |
341
|
|
|
|
|
|
|
*_unpack64 = \&Kafka::Int64::unpackq; |
342
|
|
|
|
|
|
|
# pack a big-endian signed quad (64-bit) value on 32 bit systems. |
343
|
|
|
|
|
|
|
*_pack64 = \&Kafka::Int64::packq; |
344
|
|
|
|
|
|
|
} |
345
|
|
|
|
|
|
|
|
346
|
|
|
|
|
|
|
=head2 EXPORT |
347
|
|
|
|
|
|
|
|
348
|
|
|
|
|
|
|
The following constants are available for export |
349
|
|
|
|
|
|
|
|
350
|
|
|
|
|
|
|
=cut |
351
|
|
|
|
|
|
|
|
352
|
|
|
|
|
|
|
=head3 C<$DEFAULT_APIVERSION> |
353
|
|
|
|
|
|
|
|
354
|
|
|
|
|
|
|
The default API version that will be used as fallback, if it's not possible to |
355
|
|
|
|
|
|
|
detect what the Kafka server supports. Only Kafka servers > 0.10.0.0 can be |
356
|
|
|
|
|
|
|
queried to get which API version they implements. On Kafka servers 0.8.x and |
357
|
|
|
|
|
|
|
0.9.x, the protocol will default to use $DEFAULT_APIVERSION. Currently its |
358
|
|
|
|
|
|
|
value is '0' |
359
|
|
|
|
|
|
|
|
360
|
|
|
|
|
|
|
=cut |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
const our $DEFAULT_APIVERSION => 0; |
363
|
|
|
|
|
|
|
|
364
|
|
|
|
|
|
|
# HashRef, keys are APIKEYs, values are the api version that this protocol |
365
|
|
|
|
|
|
|
# implements. If not populated, the connection will use the $DEFAULT_APIVERSION |
366
|
|
|
|
|
|
|
our $IMPLEMENTED_APIVERSIONS = {}; |
367
|
|
|
|
|
|
|
|
368
|
|
|
|
|
|
|
# Attributes |
369
|
|
|
|
|
|
|
|
370
|
|
|
|
|
|
|
# According to Apache Kafka documentation: |
371
|
|
|
|
|
|
|
# Attributes - Metadata attributes about the message. |
372
|
|
|
|
|
|
|
# The lowest 2 bits contain the compression codec used for the message. |
373
|
|
|
|
|
|
|
const our $COMPRESSION_CODEC_MASK => 0b11; |
374
|
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
=head3 C<$CONSUMERS_REPLICAID> |
376
|
|
|
|
|
|
|
|
377
|
|
|
|
|
|
|
According to Apache Kafka documentation: 'ReplicaId - Normal client consumers should always specify this as -1 as they have no node id.' |
378
|
|
|
|
|
|
|
|
379
|
|
|
|
|
|
|
=cut |
380
|
|
|
|
|
|
|
const our $CONSUMERS_REPLICAID => -1; |
381
|
|
|
|
|
|
|
|
382
|
|
|
|
|
|
|
=head3 C<$NULL_BYTES_LENGTH> |
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
According to Apache Kafka documentation: 'Protocol Primitive Types: ... bytes, string - A length of -1 indicates null.' |
385
|
|
|
|
|
|
|
|
386
|
|
|
|
|
|
|
=cut |
387
|
|
|
|
|
|
|
const our $NULL_BYTES_LENGTH => -1; |
388
|
|
|
|
|
|
|
|
389
|
|
|
|
|
|
|
=head3 C<$BAD_OFFSET> |
390
|
|
|
|
|
|
|
|
391
|
|
|
|
|
|
|
According to Apache Kafka documentation: 'Offset - When the producer is sending messages it doesn't actually know the offset |
392
|
|
|
|
|
|
|
and can fill in any value here it likes.' |
393
|
|
|
|
|
|
|
|
394
|
|
|
|
|
|
|
=cut |
395
|
|
|
|
|
|
|
const our $BAD_OFFSET => -1; |
396
|
|
|
|
|
|
|
|
397
|
|
|
|
|
|
|
my ( $_Request_header_template, $_Request_header_length ) = ( |
398
|
|
|
|
|
|
|
q{l>s>s>l>s>}, # Size |
399
|
|
|
|
|
|
|
# 2 ApiKey |
400
|
|
|
|
|
|
|
# 2 ApiVersion |
401
|
|
|
|
|
|
|
# 4 CorrelationId |
402
|
|
|
|
|
|
|
# 2 ClientId length |
403
|
|
|
|
|
|
|
10 # 'Size' is not included in the calculation of length |
404
|
|
|
|
|
|
|
); |
405
|
|
|
|
|
|
|
my ( $_ProduceRequest_header_template, $_ProduceRequest_header_length ) = ( |
406
|
|
|
|
|
|
|
q{s>l>l>}, # 2 RequiredAcks |
407
|
|
|
|
|
|
|
# 4 Timeout |
408
|
|
|
|
|
|
|
# 4 topics array size |
409
|
|
|
|
|
|
|
10 |
410
|
|
|
|
|
|
|
); |
411
|
|
|
|
|
|
|
my ( $_MessageSet_template, $_MessageSet_length ) = ( |
412
|
|
|
|
|
|
|
# qq{${_int64_template}l>}, |
413
|
|
|
|
|
|
|
q{a[8]l>}, |
414
|
|
|
|
|
|
|
# 8 Offset |
415
|
|
|
|
|
|
|
# 4 MessageSize |
416
|
|
|
|
|
|
|
12 |
417
|
|
|
|
|
|
|
); |
418
|
|
|
|
|
|
|
my ( $_FetchRequest_header_template, $_FetchRequest_header_length ) = ( |
419
|
|
|
|
|
|
|
q{l>l>l>l>}, |
420
|
|
|
|
|
|
|
# 4 ReplicaId |
421
|
|
|
|
|
|
|
# 4 MaxWaitTime |
422
|
|
|
|
|
|
|
# 4 MinBytes |
423
|
|
|
|
|
|
|
# 4 topics array size |
424
|
|
|
|
|
|
|
16 |
425
|
|
|
|
|
|
|
); |
426
|
|
|
|
|
|
|
my ( $_FetchRequest_header_template_v3, $_FetchRequest_header_length_v3 ) = ( |
427
|
|
|
|
|
|
|
q{l>l>l>l>l>}, |
428
|
|
|
|
|
|
|
# 4 ReplicaId |
429
|
|
|
|
|
|
|
# 4 MaxWaitTime |
430
|
|
|
|
|
|
|
# 4 MinBytes |
431
|
|
|
|
|
|
|
# 4 MaxBytes |
432
|
|
|
|
|
|
|
# 4 topics array size |
433
|
|
|
|
|
|
|
20 |
434
|
|
|
|
|
|
|
); |
435
|
|
|
|
|
|
|
my ( $_FetchRequest_body_template, $_FetchRequest_body_length ) = ( |
436
|
|
|
|
|
|
|
# qq{l>${_int64_template}l>}, |
437
|
|
|
|
|
|
|
q{l>a[8]l>}, |
438
|
|
|
|
|
|
|
# 4 Partition |
439
|
|
|
|
|
|
|
# 8 FetchOffset |
440
|
|
|
|
|
|
|
# 4 MaxBytes |
441
|
|
|
|
|
|
|
16 |
442
|
|
|
|
|
|
|
); |
443
|
|
|
|
|
|
|
my ( $_OffsetRequest_header_template, $_OffsetRequest_header_length ) = ( |
444
|
|
|
|
|
|
|
q{l>l>}, # 4 ReplicaId |
445
|
|
|
|
|
|
|
# 4 topics array size |
446
|
|
|
|
|
|
|
8 |
447
|
|
|
|
|
|
|
); |
448
|
|
|
|
|
|
|
my ( $_OffsetRequest_body_template, $_OffsetRequest_body_length ) = ( |
449
|
|
|
|
|
|
|
# qq{l>${_int64_template}l>}, |
450
|
|
|
|
|
|
|
q{l>a[8]l>}, |
451
|
|
|
|
|
|
|
# 4 Partition |
452
|
|
|
|
|
|
|
# 8 Time |
453
|
|
|
|
|
|
|
# 4 MaxNumberOfOffsets |
454
|
|
|
|
|
|
|
16 |
455
|
|
|
|
|
|
|
); |
456
|
|
|
|
|
|
|
my ( $_OffsetRequest_body_template_v1, $_OffsetRequest_body_length_v1 ) = ( |
457
|
|
|
|
|
|
|
# qq{l>${_int64_template}}, |
458
|
|
|
|
|
|
|
q{l>a[8]}, |
459
|
|
|
|
|
|
|
# 4 Partition |
460
|
|
|
|
|
|
|
# 8 Time |
461
|
|
|
|
|
|
|
12 |
462
|
|
|
|
|
|
|
); |
463
|
|
|
|
|
|
|
my ( $_FetchResponse_header_template, $_FetchResponse_header_length ) = ( |
464
|
|
|
|
|
|
|
q{x[l]l>l>}, # Size (skip) |
465
|
|
|
|
|
|
|
# 4 CorrelationId |
466
|
|
|
|
|
|
|
# 4 topics array size |
467
|
|
|
|
|
|
|
8 |
468
|
|
|
|
|
|
|
); |
469
|
|
|
|
|
|
|
my ( $_FetchResponse_header_template_v1, $_FetchResponse_header_length_v1 ) = ( |
470
|
|
|
|
|
|
|
q{x[l]l>l>l>}, # Size (skip) |
471
|
|
|
|
|
|
|
# 4 CorrelationId |
472
|
|
|
|
|
|
|
# 4 throttle_time_ms |
473
|
|
|
|
|
|
|
# 4 topics array size |
474
|
|
|
|
|
|
|
12 |
475
|
|
|
|
|
|
|
); |
476
|
|
|
|
|
|
|
my ( $_Message_template, $_Message_length ) = ( |
477
|
|
|
|
|
|
|
qq(${_int64_template}l>l>ccl>), |
478
|
|
|
|
|
|
|
# 8 Offset |
479
|
|
|
|
|
|
|
# MessageSize |
480
|
|
|
|
|
|
|
# Crc |
481
|
|
|
|
|
|
|
# MagicByte |
482
|
|
|
|
|
|
|
# Attributes |
483
|
|
|
|
|
|
|
# Key length |
484
|
|
|
|
|
|
|
8 # Only Offset length |
485
|
|
|
|
|
|
|
); |
486
|
|
|
|
|
|
|
my ( $_Message_template_with_timestamp, $_Message_length_with_timestamp ) = ( |
487
|
|
|
|
|
|
|
qq(${_int64_template}l>l>cc${_int64_template}l>), |
488
|
|
|
|
|
|
|
# 8 Offset |
489
|
|
|
|
|
|
|
# MessageSize |
490
|
|
|
|
|
|
|
# Crc |
491
|
|
|
|
|
|
|
# MagicByte |
492
|
|
|
|
|
|
|
# Attributes |
493
|
|
|
|
|
|
|
# Timestamp |
494
|
|
|
|
|
|
|
# Key length |
495
|
|
|
|
|
|
|
8 # Only Offset length |
496
|
|
|
|
|
|
|
); |
497
|
|
|
|
|
|
|
|
498
|
|
|
|
|
|
|
my ( $_FetchResponse_topic_body_template, $_FetchResponse_topic_body_length )= ( |
499
|
|
|
|
|
|
|
qq(s>/al>l>s>${_int64_template}), |
500
|
|
|
|
|
|
|
# TopicName |
501
|
|
|
|
|
|
|
# partitions array size |
502
|
|
|
|
|
|
|
# 4 Partition |
503
|
|
|
|
|
|
|
# 2 ErrorCode |
504
|
|
|
|
|
|
|
# 8 HighwaterMarkOffset |
505
|
|
|
|
|
|
|
14 # without TopicName and partitions array size |
506
|
|
|
|
|
|
|
); |
507
|
|
|
|
|
|
|
my $_Key_or_Value_template = q{X[l]l>/a}; # Key or Value |
508
|
|
|
|
|
|
|
|
509
|
|
|
|
|
|
|
#-- public functions ----------------------------------------------------------- |
510
|
|
|
|
|
|
|
|
511
|
|
|
|
|
|
|
=head2 FUNCTIONS |
512
|
|
|
|
|
|
|
|
513
|
|
|
|
|
|
|
The following functions are available for C<Kafka::MockProtocol> module. |
514
|
|
|
|
|
|
|
|
515
|
|
|
|
|
|
|
=cut |
516
|
|
|
|
|
|
|
|
517
|
|
|
|
|
|
|
=head3 C<encode_api_versions_request( $ApiVersions_Request )> |
518
|
|
|
|
|
|
|
|
519
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
520
|
|
|
|
|
|
|
representing a Request buffer. |
521
|
|
|
|
|
|
|
|
522
|
|
|
|
|
|
|
This function takes the following arguments: |
523
|
|
|
|
|
|
|
|
524
|
|
|
|
|
|
|
=over 3 |
525
|
|
|
|
|
|
|
|
526
|
|
|
|
|
|
|
=item C<$ApiVersions_Request> |
527
|
|
|
|
|
|
|
|
528
|
|
|
|
|
|
|
C<$ApiVersions_Request> is a reference to the hash representing the structure |
529
|
|
|
|
|
|
|
of the APIVERSIONS Request. it contains CorrelationId, ClientId (can be empty |
530
|
|
|
|
|
|
|
string), and ApiVersion (must be 0) |
531
|
|
|
|
|
|
|
|
532
|
|
|
|
|
|
|
=back |
533
|
|
|
|
|
|
|
|
534
|
|
|
|
|
|
|
=cut |
535
|
|
|
|
|
|
|
|
536
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_APIVERSIONS} = 0; |
537
|
|
|
|
|
|
|
sub encode_api_versions_request { |
538
|
0
|
|
|
0
|
1
|
0
|
my ( $ApiVersions_Request ) = @_; |
539
|
|
|
|
|
|
|
|
540
|
0
|
|
|
|
|
0
|
my @data; |
541
|
0
|
|
|
|
|
0
|
my $request = { |
542
|
|
|
|
|
|
|
# template => '...', |
543
|
|
|
|
|
|
|
# len => ..., |
544
|
|
|
|
|
|
|
data => \@data, |
545
|
|
|
|
|
|
|
}; |
546
|
|
|
|
|
|
|
|
547
|
0
|
|
|
|
|
0
|
_encode_request_header( $request, $APIKEY_APIVERSIONS, $ApiVersions_Request ); |
548
|
|
|
|
|
|
|
# Size |
549
|
|
|
|
|
|
|
# ApiKey |
550
|
|
|
|
|
|
|
# ApiVersion |
551
|
|
|
|
|
|
|
# CorrelationId |
552
|
|
|
|
|
|
|
# ClientId |
553
|
|
|
|
|
|
|
|
554
|
0
|
|
|
|
|
0
|
return pack( $request->{template}, $request->{len}, @data ); |
555
|
|
|
|
|
|
|
} |
556
|
|
|
|
|
|
|
|
557
|
|
|
|
|
|
|
my $_decode_api_version_response_template = q{x[l]l>s>l>X[l]l>/(s>s>s>)}; |
558
|
|
|
|
|
|
|
# x[l] # Size (skip) |
559
|
|
|
|
|
|
|
# l> # CorrelationId |
560
|
|
|
|
|
|
|
# s> # ErrorCode |
561
|
|
|
|
|
|
|
# l> # ApiVersions array size |
562
|
|
|
|
|
|
|
# X[l] |
563
|
|
|
|
|
|
|
# l>/( # ApiVersions array |
564
|
|
|
|
|
|
|
# s> # ApiKey |
565
|
|
|
|
|
|
|
# s> # MinVersion |
566
|
|
|
|
|
|
|
# s> # MaxVersion |
567
|
|
|
|
|
|
|
# ) |
568
|
|
|
|
|
|
|
|
569
|
|
|
|
|
|
|
=head3 C<decode_api_versions_response( $bin_stream_ref )> |
570
|
|
|
|
|
|
|
|
571
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
572
|
|
|
|
|
|
|
the structure of the APIVERSIONS Response. |
573
|
|
|
|
|
|
|
|
574
|
|
|
|
|
|
|
This function takes the following arguments: |
575
|
|
|
|
|
|
|
|
576
|
|
|
|
|
|
|
=over 3 |
577
|
|
|
|
|
|
|
|
578
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
579
|
|
|
|
|
|
|
|
580
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
581
|
|
|
|
|
|
|
must be a non-empty binary string. |
582
|
|
|
|
|
|
|
|
583
|
|
|
|
|
|
|
=back |
584
|
|
|
|
|
|
|
|
585
|
|
|
|
|
|
|
=cut |
586
|
|
|
|
|
|
|
|
587
|
|
|
|
|
|
|
sub decode_api_versions_response { |
588
|
0
|
|
|
0
|
1
|
0
|
my ( $bin_stream_ref ) = @_; |
589
|
|
|
|
|
|
|
|
590
|
0
|
|
|
|
|
0
|
my @data = unpack( $_decode_api_version_response_template, $$bin_stream_ref ); |
591
|
|
|
|
|
|
|
|
592
|
0
|
|
|
|
|
0
|
my $i = 0; |
593
|
0
|
|
|
|
|
0
|
my $ApiVersions_Response = {}; |
594
|
|
|
|
|
|
|
|
595
|
0
|
|
|
|
|
0
|
$ApiVersions_Response->{CorrelationId} = $data[ $i++ ]; # CorrelationId |
596
|
0
|
|
|
|
|
0
|
$ApiVersions_Response->{ErrorCode} = $data[ $i++ ]; # ErrorCode |
597
|
|
|
|
|
|
|
|
598
|
0
|
|
|
|
|
0
|
my $ApiVersions_array = $ApiVersions_Response->{ApiVersions} = []; |
599
|
0
|
|
|
|
|
0
|
my $ApiVersions_array_size = $data[ $i++ ]; # ApiVersions array size |
600
|
0
|
|
|
|
|
0
|
while ( $ApiVersions_array_size-- ) { |
601
|
0
|
|
|
|
|
0
|
push( @$ApiVersions_array, { |
602
|
|
|
|
|
|
|
ApiKey => $data[ $i++ ], # ApiKey |
603
|
|
|
|
|
|
|
MinVersion => $data[ $i++ ], # MinVersion |
604
|
|
|
|
|
|
|
MaxVersion => $data[ $i++ ], # MaxVersion |
605
|
|
|
|
|
|
|
} |
606
|
|
|
|
|
|
|
); |
607
|
|
|
|
|
|
|
} |
608
|
|
|
|
|
|
|
|
609
|
0
|
|
|
|
|
0
|
return $ApiVersions_Response; |
610
|
|
|
|
|
|
|
} |
611
|
|
|
|
|
|
|
|
612
|
|
|
|
|
|
|
=head3 C<encode_find_coordinator_request( $FindCoordinator_Request )> |
613
|
|
|
|
|
|
|
|
614
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
615
|
|
|
|
|
|
|
representing a Request buffer. |
616
|
|
|
|
|
|
|
|
617
|
|
|
|
|
|
|
This function takes the following arguments: |
618
|
|
|
|
|
|
|
|
619
|
|
|
|
|
|
|
=over 3 |
620
|
|
|
|
|
|
|
|
621
|
|
|
|
|
|
|
=item C<$FindCoordinator_Request> |
622
|
|
|
|
|
|
|
|
623
|
|
|
|
|
|
|
C<$FindCoordinator_Request> is a reference to the hash representing the structure |
624
|
|
|
|
|
|
|
of the FINDCOORDINATOR Request. it contains CorrelationId, ClientId (can be empty |
625
|
|
|
|
|
|
|
string), CoordinatorKey and CoordinatorType (for version 1 of protocol) |
626
|
|
|
|
|
|
|
|
627
|
|
|
|
|
|
|
=back |
628
|
|
|
|
|
|
|
|
629
|
|
|
|
|
|
|
=cut |
630
|
|
|
|
|
|
|
|
631
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_FINDCOORDINATOR} = 1; |
632
|
|
|
|
|
|
|
sub encode_find_coordinator_request { |
633
|
0
|
|
|
0
|
1
|
0
|
my ( $FindCoordinator_Request ) = @_; |
634
|
|
|
|
|
|
|
|
635
|
0
|
|
|
|
|
0
|
my @data; |
636
|
0
|
|
|
|
|
0
|
my $request = { |
637
|
|
|
|
|
|
|
# template => '...', |
638
|
|
|
|
|
|
|
# len => ..., |
639
|
|
|
|
|
|
|
data => \@data, |
640
|
|
|
|
|
|
|
}; |
641
|
|
|
|
|
|
|
|
642
|
0
|
|
|
|
|
0
|
my $api_version = |
643
|
|
|
|
|
|
|
_encode_request_header( $request, $APIKEY_FINDCOORDINATOR, $FindCoordinator_Request ); |
644
|
|
|
|
|
|
|
# Size |
645
|
|
|
|
|
|
|
# ApiKey |
646
|
|
|
|
|
|
|
# ApiVersion |
647
|
|
|
|
|
|
|
# CorrelationId |
648
|
|
|
|
|
|
|
# ClientId |
649
|
|
|
|
|
|
|
|
650
|
0
|
|
|
|
|
0
|
my $coordinator_key = $FindCoordinator_Request->{CoordinatorKey}; |
651
|
0
|
|
|
|
|
0
|
my $coordinator_type = $FindCoordinator_Request->{CoordinatorType}; |
652
|
|
|
|
|
|
|
|
653
|
0
|
|
|
|
|
0
|
$request->{template} .= q{s>}; # string length |
654
|
0
|
|
|
|
|
0
|
$request->{len} += 2; |
655
|
0
|
|
|
|
|
0
|
_encode_string( $request, $coordinator_key ); # CoordinatorKey (GroupId for version 0) |
656
|
0
|
0
|
|
|
|
0
|
if ($api_version >= 1) { |
657
|
|
|
|
|
|
|
# CoordinatorType (0 for groups) |
658
|
0
|
|
|
|
|
0
|
$request->{template} .= q{c>}; |
659
|
0
|
|
|
|
|
0
|
$request->{len} += 1; |
660
|
0
|
|
|
|
|
0
|
push( @{ $request->{data} }, $coordinator_type ); |
|
0
|
|
|
|
|
0
|
|
661
|
|
|
|
|
|
|
} |
662
|
|
|
|
|
|
|
|
663
|
0
|
|
|
|
|
0
|
return pack( $request->{template}, $request->{len}, @data ); |
664
|
|
|
|
|
|
|
} |
665
|
|
|
|
|
|
|
|
666
|
|
|
|
|
|
|
my $_decode_find_protocol_response_template = q{x[l]l>s>l>s>/al>}; |
667
|
|
|
|
|
|
|
# x[l] # Size (skip) |
668
|
|
|
|
|
|
|
# l> # CorrelationId |
669
|
|
|
|
|
|
|
# s> # ErrorCode |
670
|
|
|
|
|
|
|
# l> # NodeId |
671
|
|
|
|
|
|
|
# s>/a # Host |
672
|
|
|
|
|
|
|
# l> # Port |
673
|
|
|
|
|
|
|
|
674
|
|
|
|
|
|
|
my $_decode_find_protocol_response_template_v1 = q{x[l]l>l>s>l>s>/al>}; |
675
|
|
|
|
|
|
|
# x[l] # Size (skip) |
676
|
|
|
|
|
|
|
# l> # CorrelationId |
677
|
|
|
|
|
|
|
# l> # throttle_time_ms |
678
|
|
|
|
|
|
|
# s> # ErrorCode |
679
|
|
|
|
|
|
|
# s>/a # ErrorMessage |
680
|
|
|
|
|
|
|
# l> # NodeId |
681
|
|
|
|
|
|
|
# s>/a # Host |
682
|
|
|
|
|
|
|
# l> # Port |
683
|
|
|
|
|
|
|
|
684
|
|
|
|
|
|
|
=head3 C<decode_find_coordinator_response( $bin_stream_ref )> |
685
|
|
|
|
|
|
|
|
686
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
687
|
|
|
|
|
|
|
the structure of the FINDCOORDINATOR Response. |
688
|
|
|
|
|
|
|
|
689
|
|
|
|
|
|
|
This function takes the following arguments: |
690
|
|
|
|
|
|
|
|
691
|
|
|
|
|
|
|
=over 3 |
692
|
|
|
|
|
|
|
|
693
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
694
|
|
|
|
|
|
|
|
695
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
696
|
|
|
|
|
|
|
must be a non-empty binary string. |
697
|
|
|
|
|
|
|
|
698
|
|
|
|
|
|
|
=back |
699
|
|
|
|
|
|
|
|
700
|
|
|
|
|
|
|
=cut |
701
|
|
|
|
|
|
|
|
702
|
|
|
|
|
|
|
sub decode_find_coordinator_response { |
703
|
0
|
|
|
0
|
1
|
0
|
my ( $bin_stream_ref, $api_version ) = @_; |
704
|
|
|
|
|
|
|
|
705
|
0
|
|
0
|
|
|
0
|
$api_version //= $DEFAULT_APIVERSION; |
706
|
0
|
|
|
|
|
0
|
my $is_v1 = $api_version == 1; |
707
|
|
|
|
|
|
|
|
708
|
0
|
0
|
|
|
|
0
|
my @data = unpack( $is_v1 ? $_decode_find_protocol_response_template_v1 |
709
|
|
|
|
|
|
|
: $_decode_find_protocol_response_template, $$bin_stream_ref ); |
710
|
|
|
|
|
|
|
|
711
|
0
|
|
|
|
|
0
|
my $i = 0; |
712
|
0
|
|
|
|
|
0
|
my $FindCoordinator_Response = {}; |
713
|
|
|
|
|
|
|
|
714
|
0
|
|
|
|
|
0
|
$FindCoordinator_Response->{CorrelationId} = $data[ $i++ ]; |
715
|
0
|
0
|
|
|
|
0
|
if ($is_v1) { |
716
|
0
|
|
|
|
|
0
|
$FindCoordinator_Response->{ThrottleTimeMs} = $data[ $i++ ]; # only v1 |
717
|
|
|
|
|
|
|
} |
718
|
0
|
|
|
|
|
0
|
$FindCoordinator_Response->{ErrorCode} = $data[ $i++ ]; |
719
|
0
|
0
|
|
|
|
0
|
if ($is_v1) { |
720
|
0
|
|
|
|
|
0
|
$FindCoordinator_Response->{ErrorMessage} = $data[ $i++ ]; # only v1 |
721
|
|
|
|
|
|
|
} |
722
|
0
|
|
|
|
|
0
|
$FindCoordinator_Response->{NodeId} = $data[ $i++ ]; |
723
|
0
|
|
|
|
|
0
|
$FindCoordinator_Response->{Host} = $data[ $i++ ]; |
724
|
0
|
|
|
|
|
0
|
$FindCoordinator_Response->{Port} = $data[ $i++ ]; |
725
|
|
|
|
|
|
|
|
726
|
0
|
|
|
|
|
0
|
return $FindCoordinator_Response; |
727
|
|
|
|
|
|
|
} |
728
|
|
|
|
|
|
|
|
729
|
|
|
|
|
|
|
# PRODUCE Request -------------------------------------------------------------- |
730
|
|
|
|
|
|
|
|
731
|
|
|
|
|
|
|
=head3 C<encode_produce_request( $Produce_Request, $compression_codec )> |
732
|
|
|
|
|
|
|
|
733
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
734
|
|
|
|
|
|
|
representing a Request buffer. |
735
|
|
|
|
|
|
|
|
736
|
|
|
|
|
|
|
This function takes the following arguments: |
737
|
|
|
|
|
|
|
|
738
|
|
|
|
|
|
|
=over 3 |
739
|
|
|
|
|
|
|
|
740
|
|
|
|
|
|
|
=item C<$Produce_Request> |
741
|
|
|
|
|
|
|
|
742
|
|
|
|
|
|
|
C<$Produce_Request> is a reference to the hash representing |
743
|
|
|
|
|
|
|
the structure of the PRODUCE Request (examples see C<t/*_decode_encode.t>). |
744
|
|
|
|
|
|
|
|
745
|
|
|
|
|
|
|
=item C<$compression_codec> |
746
|
|
|
|
|
|
|
|
747
|
|
|
|
|
|
|
Optional. |
748
|
|
|
|
|
|
|
|
749
|
|
|
|
|
|
|
C<$compression_codec> sets the required type of C<$messages> compression, |
750
|
|
|
|
|
|
|
if the compression is desirable. |
751
|
|
|
|
|
|
|
|
752
|
|
|
|
|
|
|
Supported codecs: |
753
|
|
|
|
|
|
|
L<$COMPRESSION_NONE|Kafka/$COMPRESSION_NONE>, |
754
|
|
|
|
|
|
|
L<$COMPRESSION_GZIP|Kafka/$COMPRESSION_GZIP>, |
755
|
|
|
|
|
|
|
L<$COMPRESSION_SNAPPY|Kafka/$COMPRESSION_SNAPPY>, |
756
|
|
|
|
|
|
|
L<$COMPRESSION_LZ4|Kafka/$COMPRESSION_LZ4>. |
757
|
|
|
|
|
|
|
|
758
|
|
|
|
|
|
|
NOTE: $COMPRESSION_LZ4 requires Kafka 0.10 or higher, as initial implementation of LZ4 in Kafka did not follow the standard LZ4 framing specification. |
759
|
|
|
|
|
|
|
|
760
|
|
|
|
|
|
|
=back |
761
|
|
|
|
|
|
|
|
762
|
|
|
|
|
|
|
=cut |
763
|
|
|
|
|
|
|
|
764
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_PRODUCE} = 2; |
765
|
|
|
|
|
|
|
sub encode_produce_request { |
766
|
5111
|
|
|
5111
|
1
|
13240
|
my ( $Produce_Request, $compression_codec ) = @_; |
767
|
|
|
|
|
|
|
|
768
|
5111
|
|
|
|
|
4510
|
my @data; |
769
|
5111
|
|
|
|
|
7740
|
my $request = { |
770
|
|
|
|
|
|
|
# template => '...', |
771
|
|
|
|
|
|
|
# len => ..., |
772
|
|
|
|
|
|
|
data => \@data, |
773
|
|
|
|
|
|
|
}; |
774
|
|
|
|
|
|
|
|
775
|
5111
|
|
|
|
|
9010
|
_encode_request_header( $request, $APIKEY_PRODUCE, $Produce_Request ); |
776
|
|
|
|
|
|
|
# Size |
777
|
|
|
|
|
|
|
# ApiKey |
778
|
|
|
|
|
|
|
# ApiVersion |
779
|
|
|
|
|
|
|
# CorrelationId |
780
|
|
|
|
|
|
|
# ClientId |
781
|
|
|
|
|
|
|
|
782
|
5111
|
|
|
|
|
4949
|
my $topics_array = $Produce_Request->{topics}; |
783
|
|
|
|
|
|
|
push( @data, |
784
|
|
|
|
|
|
|
$Produce_Request->{RequiredAcks}, # RequiredAcks |
785
|
|
|
|
|
|
|
$Produce_Request->{Timeout}, # Timeout |
786
|
5111
|
|
|
|
|
6557
|
scalar( @$topics_array ), # topics array size |
787
|
|
|
|
|
|
|
); |
788
|
5111
|
|
|
|
|
4888
|
$request->{template} .= $_ProduceRequest_header_template; |
789
|
5111
|
|
|
|
|
4905
|
$request->{len} += $_ProduceRequest_header_length; |
790
|
|
|
|
|
|
|
|
791
|
5111
|
|
|
|
|
5989
|
foreach my $topic ( @$topics_array ) { |
792
|
5111
|
|
|
|
|
5294
|
$request->{template} .= q{s>}; # string length |
793
|
5111
|
|
|
|
|
4713
|
$request->{len} += 2; |
794
|
5111
|
|
|
|
|
6769
|
_encode_string( $request, $topic->{TopicName} ); # TopicName |
795
|
|
|
|
|
|
|
|
796
|
5111
|
|
|
|
|
4787
|
my $partitions_array = $topic->{partitions}; |
797
|
5111
|
|
|
|
|
5064
|
push( @data, scalar( @$partitions_array ) ); |
798
|
5111
|
|
|
|
|
5118
|
$request->{template} .= q{l>}; # partitions array size |
799
|
5111
|
|
|
|
|
4708
|
$request->{len} += 4; |
800
|
5111
|
|
|
|
|
5278
|
foreach my $partition ( @$partitions_array ) { |
801
|
5111
|
|
|
|
|
6791
|
push( @data, $partition->{Partition} ); |
802
|
5111
|
|
|
|
|
4561
|
$request->{template} .= q{l>}; # Partition |
803
|
5111
|
|
|
|
|
4310
|
$request->{len} += 4; |
804
|
|
|
|
|
|
|
|
805
|
5111
|
|
|
|
|
7012
|
_encode_MessageSet_array( $request, $partition->{MessageSet}, $compression_codec ); |
806
|
|
|
|
|
|
|
} |
807
|
|
|
|
|
|
|
} |
808
|
|
|
|
|
|
|
|
809
|
5111
|
|
|
|
|
34414
|
return pack( $request->{template}, $request->{len}, @data ); |
810
|
|
|
|
|
|
|
} |
811
|
|
|
|
|
|
|
|
812
|
|
|
|
|
|
|
# PRODUCE Response ------------------------------------------------------------- |
813
|
|
|
|
|
|
|
|
814
|
|
|
|
|
|
|
my $_decode_produce_response_template = qq{x[l]l>l>X[l]l>/(s>/al>X[l]l>/(l>s>${_int64_template}))}; |
815
|
|
|
|
|
|
|
# x[l] # Size (skip) |
816
|
|
|
|
|
|
|
# l> # CorrelationId |
817
|
|
|
|
|
|
|
|
818
|
|
|
|
|
|
|
# l> # topics array size |
819
|
|
|
|
|
|
|
# X[l] |
820
|
|
|
|
|
|
|
# l>/( # topics array |
821
|
|
|
|
|
|
|
# s>/a # TopicName |
822
|
|
|
|
|
|
|
|
823
|
|
|
|
|
|
|
# l> # partitions array size |
824
|
|
|
|
|
|
|
# X[l] |
825
|
|
|
|
|
|
|
# l>/( # partitions array |
826
|
|
|
|
|
|
|
# l> # Partition |
827
|
|
|
|
|
|
|
# s> # ErrorCode |
828
|
|
|
|
|
|
|
# $_int64_template # Offset |
829
|
|
|
|
|
|
|
# ) |
830
|
|
|
|
|
|
|
# ) |
831
|
|
|
|
|
|
|
|
832
|
|
|
|
|
|
|
my $_decode_produce_response_template_v1 = qq{x[l]l>l>X[l]l>/(s>/al>X[l]l>/(l>s>${_int64_template}))l>}; |
833
|
|
|
|
|
|
|
# x[l] # Size (skip) |
834
|
|
|
|
|
|
|
# l> # CorrelationId |
835
|
|
|
|
|
|
|
|
836
|
|
|
|
|
|
|
# l> # topics array size |
837
|
|
|
|
|
|
|
# X[l] |
838
|
|
|
|
|
|
|
# l>/( # topics array |
839
|
|
|
|
|
|
|
# s>/a # TopicName |
840
|
|
|
|
|
|
|
|
841
|
|
|
|
|
|
|
# l> # partitions array size |
842
|
|
|
|
|
|
|
# X[l] |
843
|
|
|
|
|
|
|
# l>/( # partitions array |
844
|
|
|
|
|
|
|
# l> # Partition |
845
|
|
|
|
|
|
|
# s> # ErrorCode |
846
|
|
|
|
|
|
|
# $_int64_template # Offset |
847
|
|
|
|
|
|
|
# ) |
848
|
|
|
|
|
|
|
# ) |
849
|
|
|
|
|
|
|
# l> # Throttle_Time_Ms |
850
|
|
|
|
|
|
|
|
851
|
|
|
|
|
|
|
my $_decode_produce_response_template_v2 = qq{x[l]l>l>X[l]l>/(s>/al>X[l]l>/(l>s>${_int64_template}${_int64_template}))l>}; |
852
|
|
|
|
|
|
|
# x[l] # Size (skip) |
853
|
|
|
|
|
|
|
# l> # CorrelationId |
854
|
|
|
|
|
|
|
|
855
|
|
|
|
|
|
|
# l> # topics array size |
856
|
|
|
|
|
|
|
# X[l] |
857
|
|
|
|
|
|
|
# l>/( # topics array |
858
|
|
|
|
|
|
|
# s>/a # TopicName |
859
|
|
|
|
|
|
|
|
860
|
|
|
|
|
|
|
# l> # partitions array size |
861
|
|
|
|
|
|
|
# X[l] |
862
|
|
|
|
|
|
|
# l>/( # partitions array |
863
|
|
|
|
|
|
|
# l> # Partition |
864
|
|
|
|
|
|
|
# s> # ErrorCode |
865
|
|
|
|
|
|
|
# $_int64_template # Offset |
866
|
|
|
|
|
|
|
# $_int64_template # Log_Append_Time |
867
|
|
|
|
|
|
|
# ) |
868
|
|
|
|
|
|
|
# ) |
869
|
|
|
|
|
|
|
# l> # Throttle_Time_Ms |
870
|
|
|
|
|
|
|
|
871
|
|
|
|
|
|
|
=head3 C<decode_produce_response( $bin_stream_ref )> |
872
|
|
|
|
|
|
|
|
873
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
874
|
|
|
|
|
|
|
the structure of the PRODUCE Response (examples see C<t/*_decode_encode.t>). |
875
|
|
|
|
|
|
|
|
876
|
|
|
|
|
|
|
This function takes the following arguments: |
877
|
|
|
|
|
|
|
|
878
|
|
|
|
|
|
|
=over 3 |
879
|
|
|
|
|
|
|
|
880
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
881
|
|
|
|
|
|
|
|
882
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
883
|
|
|
|
|
|
|
must be a non-empty binary string. |
884
|
|
|
|
|
|
|
|
885
|
|
|
|
|
|
|
=back |
886
|
|
|
|
|
|
|
|
887
|
|
|
|
|
|
|
=cut |
888
|
|
|
|
|
|
|
sub decode_produce_response { |
889
|
98
|
|
|
98
|
1
|
573
|
my ( $bin_stream_ref, $api_version ) = @_; |
890
|
|
|
|
|
|
|
|
891
|
98
|
|
33
|
|
|
511
|
$api_version //= $DEFAULT_APIVERSION; |
892
|
98
|
|
|
|
|
173
|
my $is_v1 = $api_version == 1; |
893
|
98
|
|
|
|
|
170
|
my $is_v2 = $api_version == 2; |
894
|
|
|
|
|
|
|
|
895
|
98
|
50
|
|
|
|
792
|
my @data = unpack( $is_v1 ? $_decode_produce_response_template_v1 |
|
|
50
|
|
|
|
|
|
896
|
|
|
|
|
|
|
: $is_v2 ? $_decode_produce_response_template_v2 |
897
|
|
|
|
|
|
|
: $_decode_produce_response_template, $$bin_stream_ref ); |
898
|
|
|
|
|
|
|
|
899
|
98
|
|
|
|
|
232
|
my $i = 0; |
900
|
98
|
|
|
|
|
210
|
my $Produce_Response = {}; |
901
|
|
|
|
|
|
|
|
902
|
98
|
|
|
|
|
296
|
$Produce_Response->{CorrelationId} = $data[ $i++ ]; # CorrelationId |
903
|
|
|
|
|
|
|
|
904
|
98
|
|
|
|
|
217
|
my $topics_array = $Produce_Response->{topics} = []; |
905
|
98
|
|
|
|
|
197
|
my $topics_array_size = $data[ $i++ ]; # topics array size |
906
|
98
|
|
|
|
|
294
|
while ( $topics_array_size-- ) { |
907
|
98
|
|
|
|
|
260
|
my $topic = { |
908
|
|
|
|
|
|
|
TopicName => $data[ $i++ ], |
909
|
|
|
|
|
|
|
}; |
910
|
|
|
|
|
|
|
|
911
|
98
|
|
|
|
|
251
|
my $partitions_array = $topic->{partitions} = []; |
912
|
98
|
|
|
|
|
203
|
my $partitions_array_size = $data[ $i++ ]; # partitions array size |
913
|
98
|
|
|
|
|
231
|
while ( $partitions_array_size-- ) { |
914
|
98
|
50
|
|
|
|
425
|
my $partition = { |
915
|
|
|
|
|
|
|
Partition => $data[ $i++ ], # Partition |
916
|
|
|
|
|
|
|
ErrorCode => $data[ $i++ ], # ErrorCode |
917
|
|
|
|
|
|
|
Offset => _unpack64( $data[ $i++ ] ), # Offset |
918
|
|
|
|
|
|
|
( $is_v2 ? (Log_Append_Time => _unpack64( $data[ $i++ ] )) : () ), # Log_Append_Time |
919
|
|
|
|
|
|
|
}; |
920
|
|
|
|
|
|
|
|
921
|
98
|
|
|
|
|
344
|
push( @$partitions_array, $partition ); |
922
|
|
|
|
|
|
|
} |
923
|
|
|
|
|
|
|
|
924
|
98
|
|
|
|
|
241
|
push( @$topics_array, $topic ); |
925
|
|
|
|
|
|
|
} |
926
|
|
|
|
|
|
|
defined $data[ $i ] |
927
|
98
|
50
|
|
|
|
338
|
and $Produce_Response->{Throttle_Time_Ms} = $data[ $i++ ]; |
928
|
|
|
|
|
|
|
|
929
|
98
|
|
|
|
|
292
|
return $Produce_Response; |
930
|
|
|
|
|
|
|
} |
931
|
|
|
|
|
|
|
|
932
|
|
|
|
|
|
|
# FETCH Request ---------------------------------------------------------------- |
933
|
|
|
|
|
|
|
|
934
|
|
|
|
|
|
|
=head3 C<encode_fetch_request( $Fetch_Request )> |
935
|
|
|
|
|
|
|
|
936
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
937
|
|
|
|
|
|
|
representing a Request buffer. |
938
|
|
|
|
|
|
|
|
939
|
|
|
|
|
|
|
This function takes the following arguments: |
940
|
|
|
|
|
|
|
|
941
|
|
|
|
|
|
|
=over 3 |
942
|
|
|
|
|
|
|
|
943
|
|
|
|
|
|
|
=item C<$Fetch_Request> |
944
|
|
|
|
|
|
|
|
945
|
|
|
|
|
|
|
C<$Fetch_Request> is a reference to the hash representing |
946
|
|
|
|
|
|
|
the structure of the FETCH Request (examples see C<t/*_decode_encode.t>). |
947
|
|
|
|
|
|
|
|
948
|
|
|
|
|
|
|
=back |
949
|
|
|
|
|
|
|
|
950
|
|
|
|
|
|
|
=cut |
951
|
|
|
|
|
|
|
|
952
|
|
|
|
|
|
|
# version 0, 1, 2 have the same request protocol. |
953
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_FETCH} = 3; |
954
|
|
|
|
|
|
|
sub encode_fetch_request { |
955
|
5015
|
|
|
5015
|
1
|
9349
|
my ( $Fetch_Request ) = @_; |
956
|
|
|
|
|
|
|
|
957
|
5015
|
|
|
|
|
4794
|
my @data; |
958
|
5015
|
|
|
|
|
7889
|
my $request = { |
959
|
|
|
|
|
|
|
# template => '...', |
960
|
|
|
|
|
|
|
# len => ..., |
961
|
|
|
|
|
|
|
data => \@data, |
962
|
|
|
|
|
|
|
}; |
963
|
5015
|
|
|
|
|
8105
|
my $api_version = _encode_request_header( $request, $APIKEY_FETCH, $Fetch_Request ); |
964
|
|
|
|
|
|
|
# Size |
965
|
|
|
|
|
|
|
# ApiKey |
966
|
|
|
|
|
|
|
# ApiVersion |
967
|
|
|
|
|
|
|
# CorrelationId |
968
|
|
|
|
|
|
|
# ClientId |
969
|
5015
|
|
|
|
|
5941
|
my $is_v3 = $api_version == 3; |
970
|
|
|
|
|
|
|
|
971
|
5015
|
|
|
|
|
5218
|
push( @data, $CONSUMERS_REPLICAID ); # ReplicaId |
972
|
5015
|
|
|
|
|
5170
|
my $topics_array = $Fetch_Request->{topics}; |
973
|
|
|
|
|
|
|
push( @data, |
974
|
|
|
|
|
|
|
$Fetch_Request->{MaxWaitTime}, # MaxWaitTime |
975
|
|
|
|
|
|
|
$Fetch_Request->{MinBytes}, # MinBytes |
976
|
5015
|
50
|
|
|
|
8821
|
( $is_v3 ? $Fetch_Request->{MaxBytes} : () ), # MaxBytes (version 3 only) |
977
|
|
|
|
|
|
|
scalar( @$topics_array ), # topics array size |
978
|
|
|
|
|
|
|
); |
979
|
5015
|
50
|
|
|
|
7284
|
if ($is_v3) { |
980
|
0
|
|
|
|
|
0
|
$request->{template} .= $_FetchRequest_header_template_v3; |
981
|
0
|
|
|
|
|
0
|
$request->{len} += $_FetchRequest_header_length_v3; |
982
|
|
|
|
|
|
|
} else { |
983
|
5015
|
|
|
|
|
4974
|
$request->{template} .= $_FetchRequest_header_template; |
984
|
5015
|
|
|
|
|
4400
|
$request->{len} += $_FetchRequest_header_length; |
985
|
|
|
|
|
|
|
} |
986
|
|
|
|
|
|
|
|
987
|
5015
|
|
|
|
|
6601
|
foreach my $topic ( @$topics_array ) { |
988
|
5015
|
|
|
|
|
6175
|
$request->{template} .= q{s>}; # string length |
989
|
5015
|
|
|
|
|
5045
|
$request->{len} += 2; |
990
|
5015
|
|
|
|
|
7312
|
_encode_string( $request, $topic->{TopicName} ); # TopicName |
991
|
|
|
|
|
|
|
|
992
|
5015
|
|
|
|
|
4955
|
my $partitions_array = $topic->{partitions}; |
993
|
5015
|
|
|
|
|
4766
|
push( @data, scalar( @$partitions_array ) ); |
994
|
5015
|
|
|
|
|
4793
|
$request->{template} .= q{l>}; # partitions array size |
995
|
5015
|
|
|
|
|
5052
|
$request->{len} += 4; |
996
|
5015
|
|
|
|
|
5303
|
foreach my $partition ( @$partitions_array ) { |
997
|
|
|
|
|
|
|
push( @data, |
998
|
|
|
|
|
|
|
$partition->{Partition}, # Partition |
999
|
|
|
|
|
|
|
_pack64( $partition->{FetchOffset} ), # FetchOffset |
1000
|
|
|
|
|
|
|
$partition->{MaxBytes}, # MaxBytes |
1001
|
5015
|
|
|
|
|
8260
|
); |
1002
|
5015
|
|
|
|
|
5702
|
$request->{template} .= $_FetchRequest_body_template; |
1003
|
5015
|
|
|
|
|
7601
|
$request->{len} += $_FetchRequest_body_length; |
1004
|
|
|
|
|
|
|
} |
1005
|
|
|
|
|
|
|
} |
1006
|
|
|
|
|
|
|
|
1007
|
5015
|
|
|
|
|
24605
|
return pack( $request->{template}, $request->{len}, @data ); |
1008
|
|
|
|
|
|
|
} |
1009
|
|
|
|
|
|
|
|
1010
|
|
|
|
|
|
|
# FETCH Response --------------------------------------------------------------- |
1011
|
|
|
|
|
|
|
|
1012
|
|
|
|
|
|
|
=head3 C<decode_fetch_response( $bin_stream_ref )> |
1013
|
|
|
|
|
|
|
|
1014
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
1015
|
|
|
|
|
|
|
the structure of the FETCH Response (examples see C<t/*_decode_encode.t>). |
1016
|
|
|
|
|
|
|
|
1017
|
|
|
|
|
|
|
This function takes the following arguments: |
1018
|
|
|
|
|
|
|
|
1019
|
|
|
|
|
|
|
=over 3 |
1020
|
|
|
|
|
|
|
|
1021
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
1022
|
|
|
|
|
|
|
|
1023
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
1024
|
|
|
|
|
|
|
must be a non-empty binary string. |
1025
|
|
|
|
|
|
|
|
1026
|
|
|
|
|
|
|
=back |
1027
|
|
|
|
|
|
|
|
1028
|
|
|
|
|
|
|
=cut |
1029
|
|
|
|
|
|
|
sub decode_fetch_response { |
1030
|
5021
|
|
|
5021
|
1
|
12410
|
my ( $bin_stream_ref, $api_version ) = @_; |
1031
|
|
|
|
|
|
|
|
1032
|
5021
|
|
33
|
|
|
13702
|
$api_version //= $DEFAULT_APIVERSION; |
1033
|
5021
|
|
|
|
|
5085
|
my $is_v1 = $api_version == 1; |
1034
|
5021
|
|
|
|
|
5018
|
my $is_v2 = $api_version == 2; |
1035
|
5021
|
|
|
|
|
4987
|
my $is_v3 = $api_version == 3; |
1036
|
|
|
|
|
|
|
|
1037
|
|
|
|
|
|
|
|
1038
|
|
|
|
|
|
|
# According to Apache Kafka documentation: |
1039
|
|
|
|
|
|
|
# As an optimization the server is allowed to return a partial message at the end of the message set. |
1040
|
|
|
|
|
|
|
# Clients should handle this case. |
1041
|
|
|
|
|
|
|
# NOTE: look inside _decode_MessageSet_template and _decode_MessageSet_array |
1042
|
|
|
|
|
|
|
|
1043
|
5021
|
|
|
|
|
4173
|
my @data; |
1044
|
5021
|
|
|
|
|
10153
|
my $response = { |
1045
|
|
|
|
|
|
|
# template => '...', |
1046
|
|
|
|
|
|
|
# stream_offset => ..., |
1047
|
|
|
|
|
|
|
data => \@data, |
1048
|
|
|
|
|
|
|
bin_stream => $bin_stream_ref, |
1049
|
|
|
|
|
|
|
}; |
1050
|
|
|
|
|
|
|
|
1051
|
5021
|
|
|
|
|
9992
|
_decode_fetch_response_template( $response, $api_version ); |
1052
|
5021
|
|
|
|
|
33664
|
@data = unpack( $response->{template}, $$bin_stream_ref ); |
1053
|
|
|
|
|
|
|
|
1054
|
5021
|
|
|
|
|
7233
|
my $i = 0; |
1055
|
5021
|
|
|
|
|
5543
|
my $Fetch_Response = {}; |
1056
|
|
|
|
|
|
|
|
1057
|
5021
|
|
|
|
|
7947
|
$Fetch_Response->{CorrelationId} = $data[ $i++ ]; # CorrelationId |
1058
|
5021
|
50
|
33
|
|
|
19431
|
if ($is_v1 || $is_v2 || $is_v3) { |
|
|
|
33
|
|
|
|
|
1059
|
0
|
|
|
|
|
0
|
$Fetch_Response->{ThrottleTimeMs} = $data[ $i++ ]; # ( ThrottleTimeMs ) only v1 and above |
1060
|
|
|
|
|
|
|
} |
1061
|
|
|
|
|
|
|
|
1062
|
5021
|
|
|
|
|
7724
|
my $topics_array = $Fetch_Response->{topics} = []; |
1063
|
5021
|
|
|
|
|
5278
|
my $topics_array_size = $data[ $i++ ]; # topics array size |
1064
|
5021
|
|
|
|
|
8014
|
while ( $topics_array_size-- ) { |
1065
|
5021
|
|
|
|
|
8148
|
my $topic = { |
1066
|
|
|
|
|
|
|
TopicName => $ data[ $i++ ], # TopicName |
1067
|
|
|
|
|
|
|
}; |
1068
|
|
|
|
|
|
|
|
1069
|
5021
|
|
|
|
|
7403
|
my $partitions_array = $topic->{partitions} = []; |
1070
|
5021
|
|
|
|
|
5403
|
my $partitions_array_size = $data[ $i++ ]; # partitions array size |
1071
|
5021
|
|
|
|
|
5011
|
my ( $MessageSetSize, $MessageSet_array ); |
1072
|
5021
|
|
|
|
|
7258
|
while ( $partitions_array_size-- ) { |
1073
|
5021
|
|
|
|
|
7619
|
my $partition = { |
1074
|
|
|
|
|
|
|
Partition => $data[ $i++ ], # Partition |
1075
|
|
|
|
|
|
|
ErrorCode => $data[ $i++ ], # ErrorCode |
1076
|
|
|
|
|
|
|
HighwaterMarkOffset => _unpack64( $data[ $i++ ] ), # HighwaterMarkOffset |
1077
|
|
|
|
|
|
|
}; |
1078
|
|
|
|
|
|
|
|
1079
|
5021
|
|
|
|
|
5696
|
$MessageSetSize = $data[ $i++ ]; # MessageSetSize |
1080
|
5021
|
|
|
|
|
5961
|
$MessageSet_array = $partition->{MessageSet} = []; |
1081
|
|
|
|
|
|
|
|
1082
|
5021
|
|
|
|
|
9146
|
_decode_MessageSet_array( $response, $MessageSetSize, \$i, $MessageSet_array ); |
1083
|
|
|
|
|
|
|
|
1084
|
5021
|
|
|
|
|
8279
|
push( @$partitions_array, $partition ); |
1085
|
|
|
|
|
|
|
} |
1086
|
|
|
|
|
|
|
|
1087
|
5021
|
|
|
|
|
8442
|
push( @$topics_array, $topic ); |
1088
|
|
|
|
|
|
|
} |
1089
|
|
|
|
|
|
|
|
1090
|
5021
|
|
|
|
|
17287
|
return $Fetch_Response; |
1091
|
|
|
|
|
|
|
} |
1092
|
|
|
|
|
|
|
|
1093
|
|
|
|
|
|
|
# OFFSET Request --------------------------------------------------------------- |
1094
|
|
|
|
|
|
|
|
1095
|
|
|
|
|
|
|
=head3 C<encode_offset_request( $Offset_Request )> |
1096
|
|
|
|
|
|
|
|
1097
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
1098
|
|
|
|
|
|
|
representing a Request buffer. |
1099
|
|
|
|
|
|
|
|
1100
|
|
|
|
|
|
|
This function takes the following arguments: |
1101
|
|
|
|
|
|
|
|
1102
|
|
|
|
|
|
|
=over 3 |
1103
|
|
|
|
|
|
|
|
1104
|
|
|
|
|
|
|
=item C<$Offset_Request> |
1105
|
|
|
|
|
|
|
|
1106
|
|
|
|
|
|
|
C<$Offset_Request> is a reference to the hash representing |
1107
|
|
|
|
|
|
|
the structure of the OFFSET Request (examples see C<t/*_decode_encode.t>). |
1108
|
|
|
|
|
|
|
|
1109
|
|
|
|
|
|
|
=back |
1110
|
|
|
|
|
|
|
|
1111
|
|
|
|
|
|
|
=cut |
1112
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_OFFSET} = 1; |
1113
|
|
|
|
|
|
|
sub encode_offset_request { |
1114
|
27
|
|
|
27
|
1
|
1351
|
my ( $Offset_Request ) = @_; |
1115
|
|
|
|
|
|
|
|
1116
|
27
|
|
|
|
|
40
|
my @data; |
1117
|
27
|
|
|
|
|
71
|
my $request = { |
1118
|
|
|
|
|
|
|
# template => '...', |
1119
|
|
|
|
|
|
|
# len => ..., |
1120
|
|
|
|
|
|
|
data => \@data, |
1121
|
|
|
|
|
|
|
}; |
1122
|
27
|
|
|
|
|
77
|
my $api_version = _encode_request_header( $request, $APIKEY_OFFSET, $Offset_Request ); |
1123
|
|
|
|
|
|
|
# Size |
1124
|
|
|
|
|
|
|
# ApiKey |
1125
|
|
|
|
|
|
|
# ApiVersion |
1126
|
|
|
|
|
|
|
# CorrelationId |
1127
|
|
|
|
|
|
|
# ClientId |
1128
|
|
|
|
|
|
|
|
1129
|
27
|
|
|
|
|
53
|
my $is_v1 = $api_version == 1; |
1130
|
|
|
|
|
|
|
|
1131
|
27
|
|
|
|
|
47
|
my $topics_array = $Offset_Request->{topics}; |
1132
|
27
|
|
|
|
|
362
|
push( @data, |
1133
|
|
|
|
|
|
|
$CONSUMERS_REPLICAID, # ReplicaId |
1134
|
|
|
|
|
|
|
scalar( @$topics_array ), # topics array size |
1135
|
|
|
|
|
|
|
); |
1136
|
27
|
|
|
|
|
57
|
$request->{template} .= $_OffsetRequest_header_template; |
1137
|
27
|
|
|
|
|
41
|
$request->{len} += $_OffsetRequest_header_length; |
1138
|
|
|
|
|
|
|
|
1139
|
27
|
50
|
|
|
|
106
|
my $body_template = $is_v1 ? $_OffsetRequest_body_template_v1 : $_OffsetRequest_body_template; |
1140
|
27
|
50
|
|
|
|
71
|
my $body_length = $is_v1 ? $_OffsetRequest_body_length_v1 : $_OffsetRequest_body_length; |
1141
|
27
|
|
|
|
|
60
|
foreach my $topic ( @$topics_array ) { |
1142
|
27
|
|
|
|
|
46
|
$request->{template} .= q{s>}; # string length |
1143
|
27
|
|
|
|
|
37
|
$request->{len} += 2; |
1144
|
27
|
|
|
|
|
56
|
_encode_string( $request, $topic->{TopicName} ); # TopicName |
1145
|
|
|
|
|
|
|
|
1146
|
27
|
|
|
|
|
48
|
my $partitions_array = $topic->{partitions}; |
1147
|
27
|
|
|
|
|
50
|
push( @data, scalar( @$partitions_array ) ); |
1148
|
27
|
|
|
|
|
55
|
$request->{template} .= q{l>}; # partitions array size |
1149
|
27
|
|
|
|
|
45
|
$request->{len} += 4; # [l] partitions array size |
1150
|
27
|
|
|
|
|
45
|
foreach my $partition ( @$partitions_array ) { |
1151
|
|
|
|
|
|
|
push( @data, |
1152
|
|
|
|
|
|
|
$partition->{Partition}, # Partition |
1153
|
|
|
|
|
|
|
_pack64( $partition->{Time} ), # Time |
1154
|
|
|
|
|
|
|
$is_v1 ? () : $partition->{MaxNumberOfOffsets}, # MaxNumberOfOffsets |
1155
|
27
|
50
|
|
|
|
101
|
); |
1156
|
27
|
|
|
|
|
55
|
$request->{template} .= $body_template; |
1157
|
27
|
|
|
|
|
72
|
$request->{len} += $body_length; |
1158
|
|
|
|
|
|
|
} |
1159
|
|
|
|
|
|
|
} |
1160
|
|
|
|
|
|
|
|
1161
|
|
|
|
|
|
|
# say STDERR $request->{template}; |
1162
|
|
|
|
|
|
|
# say STDERR HexDump($_) foreach @data; use Data::HexDump; |
1163
|
27
|
|
|
|
|
330
|
return pack( $request->{template}, $request->{len}, @data ); |
1164
|
|
|
|
|
|
|
} |
1165
|
|
|
|
|
|
|
|
1166
|
|
|
|
|
|
|
# OFFSET Response -------------------------------------------------------------- |
1167
|
|
|
|
|
|
|
|
1168
|
|
|
|
|
|
|
my $_decode_offset_response_template = qq{x[l]l>l>X[l]l>/(s>/al>X[l]l>/(l>s>l>X[l]l>/(${_int64_template})))}; |
1169
|
|
|
|
|
|
|
# x[l] # Size (skip) |
1170
|
|
|
|
|
|
|
# l> # CorrelationId |
1171
|
|
|
|
|
|
|
|
1172
|
|
|
|
|
|
|
# l> # topics array size |
1173
|
|
|
|
|
|
|
# X[l] |
1174
|
|
|
|
|
|
|
# l>/( # topics array |
1175
|
|
|
|
|
|
|
# s>/a # TopicName |
1176
|
|
|
|
|
|
|
|
1177
|
|
|
|
|
|
|
# l> # PartitionOffsets array size |
1178
|
|
|
|
|
|
|
# X[l] |
1179
|
|
|
|
|
|
|
# l>/( # PartitionOffsets array |
1180
|
|
|
|
|
|
|
# l> # Partition |
1181
|
|
|
|
|
|
|
# s> # ErrorCode |
1182
|
|
|
|
|
|
|
|
1183
|
|
|
|
|
|
|
# l> # Offset array size |
1184
|
|
|
|
|
|
|
# X[l] |
1185
|
|
|
|
|
|
|
# l>/( # Offset array |
1186
|
|
|
|
|
|
|
# $_int64_template # Offset |
1187
|
|
|
|
|
|
|
# ) |
1188
|
|
|
|
|
|
|
# ) |
1189
|
|
|
|
|
|
|
# ) |
1190
|
|
|
|
|
|
|
|
1191
|
|
|
|
|
|
|
my $_decode_offset_response_template_v1 = qq{x[l]l>l>X[l]l>/(s>/al>X[l]l>/(l>s>${_int64_template}${_int64_template}))}; |
1192
|
|
|
|
|
|
|
# x[l] # Size (skip) |
1193
|
|
|
|
|
|
|
# l> # CorrelationId |
1194
|
|
|
|
|
|
|
|
1195
|
|
|
|
|
|
|
# l> # topics array size |
1196
|
|
|
|
|
|
|
# X[l] |
1197
|
|
|
|
|
|
|
# l>/( # topics array |
1198
|
|
|
|
|
|
|
# s>/a # TopicName |
1199
|
|
|
|
|
|
|
|
1200
|
|
|
|
|
|
|
# l> # PartitionOffsets array size |
1201
|
|
|
|
|
|
|
# X[l] |
1202
|
|
|
|
|
|
|
# l>/( # PartitionOffsets array |
1203
|
|
|
|
|
|
|
# l> # Partition |
1204
|
|
|
|
|
|
|
# s> # ErrorCode |
1205
|
|
|
|
|
|
|
# $_int64_template # Timestamp |
1206
|
|
|
|
|
|
|
# $_int64_template # Offset |
1207
|
|
|
|
|
|
|
# ) |
1208
|
|
|
|
|
|
|
# ) |
1209
|
|
|
|
|
|
|
|
1210
|
|
|
|
|
|
|
=head3 C<decode_offset_response( $bin_stream_ref )> |
1211
|
|
|
|
|
|
|
|
1212
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
1213
|
|
|
|
|
|
|
the structure of the OFFSET Response (examples see C<t/*_decode_encode.t>). |
1214
|
|
|
|
|
|
|
|
1215
|
|
|
|
|
|
|
This function takes the following arguments: |
1216
|
|
|
|
|
|
|
|
1217
|
|
|
|
|
|
|
=over 3 |
1218
|
|
|
|
|
|
|
|
1219
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
1220
|
|
|
|
|
|
|
|
1221
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
1222
|
|
|
|
|
|
|
must be a non-empty binary string. |
1223
|
|
|
|
|
|
|
|
1224
|
|
|
|
|
|
|
=back |
1225
|
|
|
|
|
|
|
|
1226
|
|
|
|
|
|
|
=cut |
1227
|
|
|
|
|
|
|
sub decode_offset_response { |
1228
|
23
|
|
|
23
|
1
|
406
|
my ( $bin_stream_ref, $api_version ) = @_; |
1229
|
|
|
|
|
|
|
|
1230
|
23
|
|
66
|
|
|
62
|
$api_version //= $DEFAULT_APIVERSION; |
1231
|
23
|
|
|
|
|
42
|
my $is_v1 = $api_version == 1; |
1232
|
23
|
50
|
|
|
|
67
|
my $template = $is_v1 ? $_decode_offset_response_template_v1 : $_decode_offset_response_template; |
1233
|
|
|
|
|
|
|
|
1234
|
23
|
|
|
|
|
127
|
my @data = unpack( $template, $$bin_stream_ref ); |
1235
|
|
|
|
|
|
|
|
1236
|
23
|
|
|
|
|
59
|
my $i = 0; |
1237
|
23
|
|
|
|
|
37
|
my $Offset_Response = { }; |
1238
|
|
|
|
|
|
|
|
1239
|
23
|
|
|
|
|
50
|
$Offset_Response->{CorrelationId} = $data[ $i++ ]; # CorrelationId |
1240
|
|
|
|
|
|
|
|
1241
|
23
|
|
|
|
|
47
|
my $topics_array = $Offset_Response->{topics} = []; |
1242
|
23
|
|
|
|
|
35
|
my $topics_array_size = $data[ $i++ ]; # topics array size |
1243
|
23
|
|
|
|
|
60
|
while ( $topics_array_size-- ) { |
1244
|
23
|
|
|
|
|
51
|
my $topic = { |
1245
|
|
|
|
|
|
|
TopicName => $data[ $i++ ], # TopicName |
1246
|
|
|
|
|
|
|
}; |
1247
|
|
|
|
|
|
|
|
1248
|
23
|
|
|
|
|
37
|
my $PartitionOffsets_array = $topic->{PartitionOffsets} = []; |
1249
|
23
|
|
|
|
|
39
|
my $PartitionOffsets_array_size = $data[ $i++ ]; # PartitionOffsets array size |
1250
|
23
|
|
|
|
|
41
|
my ( $PartitionOffset, $Offset_array, $Offset_array_size ); |
1251
|
23
|
|
|
|
|
44
|
while ( $PartitionOffsets_array_size-- ) { |
1252
|
23
|
|
|
|
|
65
|
$PartitionOffset = { |
1253
|
|
|
|
|
|
|
Partition => $data[ $i++ ], # Partition |
1254
|
|
|
|
|
|
|
ErrorCode => $data[ $i++ ], # ErrorCode |
1255
|
|
|
|
|
|
|
}; |
1256
|
23
|
50
|
|
|
|
44
|
if ($is_v1) { |
1257
|
0
|
|
|
|
|
0
|
$PartitionOffset->{Timestamp} = _unpack64($data[ $i++ ]); # Timestamp (v1 only) |
1258
|
0
|
|
|
|
|
0
|
$PartitionOffset->{Offset} = _unpack64($data[ $i++ ]); # Offset (v1 only) |
1259
|
|
|
|
|
|
|
|
1260
|
|
|
|
|
|
|
} else { |
1261
|
23
|
|
|
|
|
49
|
$Offset_array = $PartitionOffset->{Offset} = []; |
1262
|
23
|
|
|
|
|
32
|
$Offset_array_size = $data[ $i++ ]; # Offset array size |
1263
|
23
|
|
|
|
|
145
|
while ( $Offset_array_size-- ) { |
1264
|
41
|
|
|
|
|
79
|
push( @$Offset_array, _unpack64( $data[ $i++ ] ) ); # Offset |
1265
|
|
|
|
|
|
|
} |
1266
|
|
|
|
|
|
|
} |
1267
|
|
|
|
|
|
|
|
1268
|
23
|
|
|
|
|
49
|
push( @$PartitionOffsets_array, $PartitionOffset ); |
1269
|
|
|
|
|
|
|
} |
1270
|
|
|
|
|
|
|
|
1271
|
23
|
|
|
|
|
63
|
push( @$topics_array, $topic ); |
1272
|
|
|
|
|
|
|
} |
1273
|
|
|
|
|
|
|
|
1274
|
23
|
|
|
|
|
64
|
return $Offset_Response; |
1275
|
|
|
|
|
|
|
} |
1276
|
|
|
|
|
|
|
|
1277
|
|
|
|
|
|
|
# METADATA Request ------------------------------------------------------------- |
1278
|
|
|
|
|
|
|
|
1279
|
|
|
|
|
|
|
=head3 C<encode_metadata_request( $Metadata_Request )> |
1280
|
|
|
|
|
|
|
|
1281
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
1282
|
|
|
|
|
|
|
representing a Request buffer. |
1283
|
|
|
|
|
|
|
|
1284
|
|
|
|
|
|
|
This function takes the following arguments: |
1285
|
|
|
|
|
|
|
|
1286
|
|
|
|
|
|
|
=over 3 |
1287
|
|
|
|
|
|
|
|
1288
|
|
|
|
|
|
|
=item C<$Metadata_Request> |
1289
|
|
|
|
|
|
|
|
1290
|
|
|
|
|
|
|
C<$Metadata_Request> is a reference to the hash representing |
1291
|
|
|
|
|
|
|
the structure of the METADATA Request (examples see C<t/*_decode_encode.t>). |
1292
|
|
|
|
|
|
|
|
1293
|
|
|
|
|
|
|
=back |
1294
|
|
|
|
|
|
|
|
1295
|
|
|
|
|
|
|
=cut |
1296
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_METADATA} = 0; |
1297
|
|
|
|
|
|
|
sub encode_metadata_request { |
1298
|
128
|
|
|
128
|
1
|
2418
|
my ( $Metadata_Request ) = @_; |
1299
|
|
|
|
|
|
|
|
1300
|
128
|
|
|
|
|
372
|
my @data; |
1301
|
128
|
|
|
|
|
501
|
my $request = { |
1302
|
|
|
|
|
|
|
# template => '...', |
1303
|
|
|
|
|
|
|
# len => ..., |
1304
|
|
|
|
|
|
|
data => \@data, |
1305
|
|
|
|
|
|
|
}; |
1306
|
|
|
|
|
|
|
|
1307
|
128
|
|
|
|
|
707
|
_encode_request_header( $request, $APIKEY_METADATA, $Metadata_Request ); |
1308
|
|
|
|
|
|
|
# Size |
1309
|
|
|
|
|
|
|
# ApiKey |
1310
|
|
|
|
|
|
|
# ApiVersion |
1311
|
|
|
|
|
|
|
# CorrelationId |
1312
|
|
|
|
|
|
|
# ClientId |
1313
|
|
|
|
|
|
|
|
1314
|
128
|
|
|
|
|
246
|
my $topics_array = $Metadata_Request->{topics}; |
1315
|
128
|
|
|
|
|
247
|
push( @data, scalar( @$topics_array ) ); # topics array size |
1316
|
128
|
|
|
|
|
602
|
$request->{template} .= q{l>}; |
1317
|
128
|
|
|
|
|
287
|
$request->{len} += 4; |
1318
|
|
|
|
|
|
|
|
1319
|
128
|
|
|
|
|
444
|
foreach my $topic ( @$topics_array ) { |
1320
|
127
|
|
|
|
|
258
|
$request->{template} .= q{s>}; # string length |
1321
|
127
|
|
|
|
|
215
|
$request->{len} += 2; |
1322
|
127
|
|
|
|
|
316
|
_encode_string( $request, $topic ); # TopicName |
1323
|
|
|
|
|
|
|
} |
1324
|
|
|
|
|
|
|
|
1325
|
128
|
|
|
|
|
2001
|
return pack( $request->{template}, $request->{len}, @data ); |
1326
|
|
|
|
|
|
|
} |
1327
|
|
|
|
|
|
|
|
1328
|
|
|
|
|
|
|
# METADATA Response ------------------------------------------------------------ |
1329
|
|
|
|
|
|
|
|
1330
|
|
|
|
|
|
|
my $_decode_metadata_response_template = q{x[l]l>l>X[l]l>/(l>s>/al>)l>X[l]l>/(s>s>/al>X[l]l>/(s>l>l>l>X[l]l>/(l>)l>X[l]l>/(l>)))}; |
1331
|
|
|
|
|
|
|
# x[l] # Size (skip) |
1332
|
|
|
|
|
|
|
# l> # CorrelationId |
1333
|
|
|
|
|
|
|
|
1334
|
|
|
|
|
|
|
# l> # Broker array size |
1335
|
|
|
|
|
|
|
# X[l] |
1336
|
|
|
|
|
|
|
# l>/( # Broker array |
1337
|
|
|
|
|
|
|
# l> # NodeId |
1338
|
|
|
|
|
|
|
# s>/a # Host |
1339
|
|
|
|
|
|
|
# l> # Port |
1340
|
|
|
|
|
|
|
# ) |
1341
|
|
|
|
|
|
|
|
1342
|
|
|
|
|
|
|
# l> # TopicMetadata array size |
1343
|
|
|
|
|
|
|
# X[l] |
1344
|
|
|
|
|
|
|
# l>/( # TopicMetadata array |
1345
|
|
|
|
|
|
|
# s> # ErrorCode |
1346
|
|
|
|
|
|
|
# s>/a # TopicName |
1347
|
|
|
|
|
|
|
|
1348
|
|
|
|
|
|
|
# l> # PartitionMetadata array size |
1349
|
|
|
|
|
|
|
# X[l] |
1350
|
|
|
|
|
|
|
# l>/( # PartitionMetadata array |
1351
|
|
|
|
|
|
|
# s> # ErrorCode |
1352
|
|
|
|
|
|
|
# l> # Partition |
1353
|
|
|
|
|
|
|
# l> # Leader |
1354
|
|
|
|
|
|
|
|
1355
|
|
|
|
|
|
|
# l> # Replicas array size |
1356
|
|
|
|
|
|
|
# X[l] |
1357
|
|
|
|
|
|
|
# l>/( # Replicas array |
1358
|
|
|
|
|
|
|
# l> # ReplicaId |
1359
|
|
|
|
|
|
|
# ) |
1360
|
|
|
|
|
|
|
|
1361
|
|
|
|
|
|
|
# l> # Isr array size |
1362
|
|
|
|
|
|
|
# X[l] |
1363
|
|
|
|
|
|
|
# l>/( # Isr array |
1364
|
|
|
|
|
|
|
# l> # ReplicaId |
1365
|
|
|
|
|
|
|
# ) |
1366
|
|
|
|
|
|
|
# ) |
1367
|
|
|
|
|
|
|
# ) |
1368
|
|
|
|
|
|
|
|
1369
|
|
|
|
|
|
|
=head3 C<decode_metadata_response( $bin_stream_ref )> |
1370
|
|
|
|
|
|
|
|
1371
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
1372
|
|
|
|
|
|
|
the structure of the METADATA Response (examples see C<t/*_decode_encode.t>). |
1373
|
|
|
|
|
|
|
|
1374
|
|
|
|
|
|
|
This function takes the following arguments: |
1375
|
|
|
|
|
|
|
|
1376
|
|
|
|
|
|
|
=over 3 |
1377
|
|
|
|
|
|
|
|
1378
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
1379
|
|
|
|
|
|
|
|
1380
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
1381
|
|
|
|
|
|
|
must be a non-empty binary string. |
1382
|
|
|
|
|
|
|
|
1383
|
|
|
|
|
|
|
=back |
1384
|
|
|
|
|
|
|
|
1385
|
|
|
|
|
|
|
=cut |
1386
|
|
|
|
|
|
|
sub decode_metadata_response { |
1387
|
121
|
|
|
121
|
1
|
604
|
my ( $bin_stream_ref ) = @_; |
1388
|
|
|
|
|
|
|
|
1389
|
121
|
|
|
|
|
1393
|
my @data = unpack( $_decode_metadata_response_template, $$bin_stream_ref ); |
1390
|
|
|
|
|
|
|
|
1391
|
121
|
|
|
|
|
318
|
my $i = 0; |
1392
|
121
|
|
|
|
|
229
|
my $Metadata_Response = {}; |
1393
|
|
|
|
|
|
|
|
1394
|
121
|
|
|
|
|
441
|
$Metadata_Response->{CorrelationId} = $data[ $i++ ]; # CorrelationId |
1395
|
|
|
|
|
|
|
|
1396
|
121
|
|
|
|
|
316
|
my $Broker_array = $Metadata_Response->{Broker} = []; |
1397
|
121
|
|
|
|
|
206
|
my $Broker_array_size = $data[ $i++ ]; # Broker array size |
1398
|
121
|
|
|
|
|
380
|
while ( $Broker_array_size-- ) { |
1399
|
363
|
|
|
|
|
1395
|
push( @$Broker_array, { |
1400
|
|
|
|
|
|
|
NodeId => $data[ $i++ ], # NodeId |
1401
|
|
|
|
|
|
|
Host => $data[ $i++ ], # Host |
1402
|
|
|
|
|
|
|
Port => $data[ $i++ ], # Port |
1403
|
|
|
|
|
|
|
} |
1404
|
|
|
|
|
|
|
); |
1405
|
|
|
|
|
|
|
} |
1406
|
|
|
|
|
|
|
|
1407
|
121
|
|
|
|
|
345
|
my $TopicMetadata_array = $Metadata_Response->{TopicMetadata} = []; |
1408
|
121
|
|
|
|
|
233
|
my $TopicMetadata_array_size = $data[ $i++ ]; # TopicMetadata array size |
1409
|
121
|
|
|
|
|
328
|
while ( $TopicMetadata_array_size-- ) { |
1410
|
121
|
|
|
|
|
490
|
my $TopicMetadata = { |
1411
|
|
|
|
|
|
|
ErrorCode => $data[ $i++ ], # ErrorCode |
1412
|
|
|
|
|
|
|
TopicName => $data[ $i++ ], # TopicName |
1413
|
|
|
|
|
|
|
}; |
1414
|
|
|
|
|
|
|
|
1415
|
121
|
|
|
|
|
341
|
my $PartitionMetadata_array = $TopicMetadata->{PartitionMetadata} = []; |
1416
|
121
|
|
|
|
|
215
|
my $PartitionMetadata_array_size = $data[ $i++ ]; # PartitionMetadata array size |
1417
|
121
|
|
|
|
|
351
|
while ( $PartitionMetadata_array_size-- ) { |
1418
|
121
|
|
|
|
|
543
|
my $PartitionMetadata = { |
1419
|
|
|
|
|
|
|
ErrorCode => $data[ $i++ ], # ErrorCode |
1420
|
|
|
|
|
|
|
Partition => $data[ $i++ ], # Partition |
1421
|
|
|
|
|
|
|
Leader => $data[ $i++ ], # Leader |
1422
|
|
|
|
|
|
|
}; |
1423
|
|
|
|
|
|
|
|
1424
|
121
|
|
|
|
|
316
|
my $Replicas_array = $PartitionMetadata->{Replicas} = []; |
1425
|
121
|
|
|
|
|
251
|
my $Replicas_array_size = $data[ $i++ ]; # Replicas array size |
1426
|
121
|
|
|
|
|
309
|
while ( $Replicas_array_size-- ) { |
1427
|
363
|
|
|
|
|
694
|
push( @$Replicas_array, $data[ $i++ ] ); # ReplicaId |
1428
|
|
|
|
|
|
|
} |
1429
|
|
|
|
|
|
|
|
1430
|
121
|
|
|
|
|
285
|
my $Isr_array = $PartitionMetadata->{Isr} = []; |
1431
|
121
|
|
|
|
|
218
|
my $Isr_array_size = $data[ $i++ ]; # Isr array size |
1432
|
121
|
|
|
|
|
303
|
while ( $Isr_array_size-- ) { |
1433
|
363
|
|
|
|
|
669
|
push( @$Isr_array, $data[ $i++ ] ); # ReplicaId |
1434
|
|
|
|
|
|
|
} |
1435
|
|
|
|
|
|
|
|
1436
|
121
|
|
|
|
|
381
|
push( @$PartitionMetadata_array, $PartitionMetadata ); |
1437
|
|
|
|
|
|
|
} |
1438
|
|
|
|
|
|
|
|
1439
|
121
|
|
|
|
|
291
|
push( @$TopicMetadata_array, $TopicMetadata ); |
1440
|
|
|
|
|
|
|
} |
1441
|
|
|
|
|
|
|
|
1442
|
121
|
|
|
|
|
406
|
return $Metadata_Response; |
1443
|
|
|
|
|
|
|
} |
1444
|
|
|
|
|
|
|
|
1445
|
|
|
|
|
|
|
# OffsetCommit Request ------------------------------------------------------------- |
1446
|
|
|
|
|
|
|
|
1447
|
|
|
|
|
|
|
=head3 C<encode_offsetcommit_request( $OffsetCommit_Request )> |
1448
|
|
|
|
|
|
|
|
1449
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
1450
|
|
|
|
|
|
|
representing a Request buffer. |
1451
|
|
|
|
|
|
|
|
1452
|
|
|
|
|
|
|
This function takes the following arguments: |
1453
|
|
|
|
|
|
|
|
1454
|
|
|
|
|
|
|
=over 3 |
1455
|
|
|
|
|
|
|
|
1456
|
|
|
|
|
|
|
=item C<$OffsetCommit_Request> |
1457
|
|
|
|
|
|
|
|
1458
|
|
|
|
|
|
|
C<$OffsetCommit_Request> is a reference to the hash representing |
1459
|
|
|
|
|
|
|
the structure of the OffsetCommit Request (examples see C<t/*_decode_encode.t>). |
1460
|
|
|
|
|
|
|
|
1461
|
|
|
|
|
|
|
=back |
1462
|
|
|
|
|
|
|
|
1463
|
|
|
|
|
|
|
=cut |
1464
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_OFFSETCOMMIT} = 1; |
1465
|
|
|
|
|
|
|
sub encode_offsetcommit_request { |
1466
|
0
|
|
|
0
|
1
|
0
|
my ( $OffsetCommit_Request ) = @_; |
1467
|
|
|
|
|
|
|
|
1468
|
0
|
|
|
|
|
0
|
my @data; |
1469
|
0
|
|
|
|
|
0
|
my $request = { |
1470
|
|
|
|
|
|
|
# template => '...', |
1471
|
|
|
|
|
|
|
# len => ..., |
1472
|
|
|
|
|
|
|
data => \@data, |
1473
|
|
|
|
|
|
|
}; |
1474
|
|
|
|
|
|
|
|
1475
|
0
|
|
|
|
|
0
|
my $api_version = _encode_request_header( $request, $APIKEY_OFFSETCOMMIT, $OffsetCommit_Request ); |
1476
|
|
|
|
|
|
|
# Size |
1477
|
|
|
|
|
|
|
# ApiKey |
1478
|
|
|
|
|
|
|
# ApiVersion |
1479
|
|
|
|
|
|
|
# CorrelationId |
1480
|
|
|
|
|
|
|
# ClientId |
1481
|
|
|
|
|
|
|
|
1482
|
0
|
|
|
|
|
0
|
my $is_v1 = $api_version == 1; |
1483
|
|
|
|
|
|
|
|
1484
|
0
|
|
|
|
|
0
|
$request->{template} .= q{s>}; |
1485
|
0
|
|
|
|
|
0
|
$request->{len} += 2; |
1486
|
0
|
|
|
|
|
0
|
_encode_string( $request, $OffsetCommit_Request->{GroupId} ); # GroupId |
1487
|
|
|
|
|
|
|
|
1488
|
0
|
0
|
|
|
|
0
|
if ($is_v1) { |
1489
|
0
|
|
|
|
|
0
|
$request->{template} .= q{l>}; # GroupGenerationId |
1490
|
0
|
|
|
|
|
0
|
$request->{len} += 4; |
1491
|
|
|
|
|
|
|
### WARNING TODO: we don't support consumer groups properly, so we set |
1492
|
|
|
|
|
|
|
### generation id to -1 and member id null (see |
1493
|
|
|
|
|
|
|
### https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol ) |
1494
|
0
|
|
|
|
|
0
|
push( @data, -1 ); |
1495
|
|
|
|
|
|
|
|
1496
|
0
|
|
|
|
|
0
|
$request->{template} .= q{s>}; # string length |
1497
|
0
|
|
|
|
|
0
|
$request->{len} += 2; |
1498
|
0
|
|
|
|
|
0
|
_encode_string( $request, '' ); # MemberId |
1499
|
|
|
|
|
|
|
} |
1500
|
|
|
|
|
|
|
|
1501
|
0
|
|
|
|
|
0
|
my $topics_array = $OffsetCommit_Request->{topics}; |
1502
|
0
|
|
|
|
|
0
|
push( @data, scalar( @$topics_array ) ); # topics array size |
1503
|
0
|
|
|
|
|
0
|
$request->{template} .= q{l>}; |
1504
|
0
|
|
|
|
|
0
|
$request->{len} += 4; |
1505
|
|
|
|
|
|
|
|
1506
|
0
|
|
|
|
|
0
|
foreach my $topic ( @$topics_array ) { |
1507
|
0
|
|
|
|
|
0
|
$request->{template} .= q{s>}; |
1508
|
0
|
|
|
|
|
0
|
$request->{len} += 2; |
1509
|
0
|
|
|
|
|
0
|
_encode_string( $request, $topic->{TopicName} ); # TopicName |
1510
|
|
|
|
|
|
|
|
1511
|
0
|
|
|
|
|
0
|
my $partitions_array = $topic->{partitions}; |
1512
|
0
|
|
|
|
|
0
|
push( @data, scalar( @$partitions_array ) ); # partitions array size |
1513
|
0
|
|
|
|
|
0
|
$request->{template} .= q{l>}; |
1514
|
0
|
|
|
|
|
0
|
$request->{len} += 4; |
1515
|
|
|
|
|
|
|
|
1516
|
0
|
|
|
|
|
0
|
foreach my $partition ( @$partitions_array ){ |
1517
|
|
|
|
|
|
|
push( @data, |
1518
|
|
|
|
|
|
|
$partition->{Partition}, # Partition |
1519
|
|
|
|
|
|
|
$partition->{Offset}, # Offset |
1520
|
0
|
|
|
|
|
0
|
); |
1521
|
0
|
|
|
|
|
0
|
$request->{template} .= qq{l>${_int64_template}}; |
1522
|
0
|
|
|
|
|
0
|
$request->{len} += 12; |
1523
|
|
|
|
|
|
|
|
1524
|
0
|
0
|
|
|
|
0
|
if ($is_v1) { # timestamp |
1525
|
|
|
|
|
|
|
### WARNING TODO: currently we hardcode "now" |
1526
|
0
|
|
|
|
|
0
|
push( @data, time() * 1000); |
1527
|
0
|
|
|
|
|
0
|
$request->{template} .= qq{${_int64_template}}; |
1528
|
0
|
|
|
|
|
0
|
$request->{len} += 8; |
1529
|
|
|
|
|
|
|
} |
1530
|
|
|
|
|
|
|
|
1531
|
0
|
|
|
|
|
0
|
$request->{template} .= q{s>}; |
1532
|
0
|
|
|
|
|
0
|
$request->{len} += 2; |
1533
|
0
|
|
|
|
|
0
|
_encode_string( $request, $partition->{Metadata} ), # Metadata |
1534
|
|
|
|
|
|
|
} |
1535
|
|
|
|
|
|
|
} |
1536
|
0
|
|
|
|
|
0
|
return pack( $request->{template}, $request->{len}, @data ); |
1537
|
|
|
|
|
|
|
} |
1538
|
|
|
|
|
|
|
|
1539
|
|
|
|
|
|
|
# OFFSETCOMMIT Response -------------------------------------------------------------- |
1540
|
|
|
|
|
|
|
|
1541
|
|
|
|
|
|
|
my $_decode_offsetcommit_response_template = qq{x[l]l>l>X[l]l>/(s>/al>X[l]l>/(l>s>))}; |
1542
|
|
|
|
|
|
|
# x[l] # Size (skip) |
1543
|
|
|
|
|
|
|
# l> # CorrelationId |
1544
|
|
|
|
|
|
|
# l> # topics array size |
1545
|
|
|
|
|
|
|
# X[l] |
1546
|
|
|
|
|
|
|
# l>/( # topics array |
1547
|
|
|
|
|
|
|
# s>/a # TopicName |
1548
|
|
|
|
|
|
|
# l> # partitions array size |
1549
|
|
|
|
|
|
|
# X[l] |
1550
|
|
|
|
|
|
|
# l>/( # partitions array |
1551
|
|
|
|
|
|
|
# l> # Partition |
1552
|
|
|
|
|
|
|
# s> # ErrorCode |
1553
|
|
|
|
|
|
|
# ) |
1554
|
|
|
|
|
|
|
# ) |
1555
|
|
|
|
|
|
|
|
1556
|
|
|
|
|
|
|
=head3 C<decode_offsetcommit_response( $bin_stream_ref )> |
1557
|
|
|
|
|
|
|
|
1558
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
1559
|
|
|
|
|
|
|
the structure of the OFFSETCOMMIT Response (examples see C<t/*_decode_encode.t>). |
1560
|
|
|
|
|
|
|
|
1561
|
|
|
|
|
|
|
This function takes the following arguments: |
1562
|
|
|
|
|
|
|
|
1563
|
|
|
|
|
|
|
=over 3 |
1564
|
|
|
|
|
|
|
|
1565
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
1566
|
|
|
|
|
|
|
|
1567
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
1568
|
|
|
|
|
|
|
must be a non-empty binary string. |
1569
|
|
|
|
|
|
|
|
1570
|
|
|
|
|
|
|
=back |
1571
|
|
|
|
|
|
|
|
1572
|
|
|
|
|
|
|
=cut |
1573
|
|
|
|
|
|
|
sub decode_offsetcommit_response { |
1574
|
0
|
|
|
0
|
1
|
0
|
my ( $bin_stream_ref ) = @_; |
1575
|
|
|
|
|
|
|
|
1576
|
0
|
|
|
|
|
0
|
my @data = unpack( $_decode_offsetcommit_response_template, $$bin_stream_ref ); |
1577
|
|
|
|
|
|
|
|
1578
|
0
|
|
|
|
|
0
|
my $i = 0; |
1579
|
0
|
|
|
|
|
0
|
my $OffsetCommit_Response = {}; |
1580
|
|
|
|
|
|
|
|
1581
|
0
|
|
|
|
|
0
|
$OffsetCommit_Response->{CorrelationId} = $data[ $i++ ]; #CorrelationId |
1582
|
|
|
|
|
|
|
|
1583
|
0
|
|
|
|
|
0
|
my $topics_array = $OffsetCommit_Response->{topics} = []; |
1584
|
0
|
|
|
|
|
0
|
my $topics_array_size = $data[ $i++ ]; # topics array size |
1585
|
0
|
|
|
|
|
0
|
while ( $topics_array_size-- ) { |
1586
|
0
|
|
|
|
|
0
|
my $topic = { |
1587
|
|
|
|
|
|
|
TopicName => $data[ $i++ ], # TopicName |
1588
|
|
|
|
|
|
|
}; |
1589
|
|
|
|
|
|
|
|
1590
|
0
|
|
|
|
|
0
|
my $Partition_array = $topic->{partitions} = []; |
1591
|
0
|
|
|
|
|
0
|
my $Partition_array_size = $data[ $i++ ]; # Partitions array size |
1592
|
0
|
|
|
|
|
0
|
while ( $Partition_array_size-- ) { |
1593
|
0
|
|
|
|
|
0
|
my $Partition = { |
1594
|
|
|
|
|
|
|
Partition => $data[ $i++ ], # Partition |
1595
|
|
|
|
|
|
|
ErrorCode => $data[ $i++ ], # ErrorCode |
1596
|
|
|
|
|
|
|
}; |
1597
|
0
|
|
|
|
|
0
|
push( @$Partition_array, $Partition); |
1598
|
|
|
|
|
|
|
} |
1599
|
0
|
|
|
|
|
0
|
push( @$topics_array, $topic); |
1600
|
|
|
|
|
|
|
} |
1601
|
0
|
|
|
|
|
0
|
return $OffsetCommit_Response; |
1602
|
|
|
|
|
|
|
} |
1603
|
|
|
|
|
|
|
|
1604
|
|
|
|
|
|
|
# OffsetFetch Request ------------------------------------------------------------- |
1605
|
|
|
|
|
|
|
|
1606
|
|
|
|
|
|
|
=head3 C<encode_offsetfetch_request( $OffsetFetch_Request )> |
1607
|
|
|
|
|
|
|
|
1608
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
1609
|
|
|
|
|
|
|
representing a Request buffer. |
1610
|
|
|
|
|
|
|
|
1611
|
|
|
|
|
|
|
This function takes the following arguments: |
1612
|
|
|
|
|
|
|
|
1613
|
|
|
|
|
|
|
=over 3 |
1614
|
|
|
|
|
|
|
|
1615
|
|
|
|
|
|
|
=item C<$OffsetFetch_Request> |
1616
|
|
|
|
|
|
|
|
1617
|
|
|
|
|
|
|
C<$OffsetFetch_Request> is a reference to the hash representing |
1618
|
|
|
|
|
|
|
the structure of the OffsetFetch Request (examples see C<t/*_decode_encode.t>). |
1619
|
|
|
|
|
|
|
|
1620
|
|
|
|
|
|
|
=back |
1621
|
|
|
|
|
|
|
|
1622
|
|
|
|
|
|
|
=cut |
1623
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_OFFSETFETCH} = 1; |
1624
|
|
|
|
|
|
|
sub encode_offsetfetch_request { |
1625
|
0
|
|
|
0
|
1
|
0
|
my ( $OffsetFetch_Request ) = @_; |
1626
|
|
|
|
|
|
|
|
1627
|
0
|
|
|
|
|
0
|
my @data; |
1628
|
0
|
|
|
|
|
0
|
my $request = { |
1629
|
|
|
|
|
|
|
# template => '...', |
1630
|
|
|
|
|
|
|
# len => ..., |
1631
|
|
|
|
|
|
|
data => \@data, |
1632
|
|
|
|
|
|
|
}; |
1633
|
|
|
|
|
|
|
|
1634
|
0
|
|
|
|
|
0
|
_encode_request_header( $request, $APIKEY_OFFSETFETCH, $OffsetFetch_Request ); |
1635
|
|
|
|
|
|
|
# Size |
1636
|
|
|
|
|
|
|
# ApiKey |
1637
|
|
|
|
|
|
|
# ApiVersion |
1638
|
|
|
|
|
|
|
# CorrelationId |
1639
|
|
|
|
|
|
|
# ClientId |
1640
|
|
|
|
|
|
|
|
1641
|
0
|
|
|
|
|
0
|
$request->{template} .= q{s>}; |
1642
|
0
|
|
|
|
|
0
|
$request->{len} += 2; |
1643
|
0
|
|
|
|
|
0
|
_encode_string( $request, $OffsetFetch_Request->{GroupId} ); # GroupId |
1644
|
|
|
|
|
|
|
|
1645
|
0
|
|
|
|
|
0
|
my $topics_array = $OffsetFetch_Request->{topics}; |
1646
|
0
|
|
|
|
|
0
|
push( @data, scalar( @$topics_array ) ); # topics array size |
1647
|
0
|
|
|
|
|
0
|
$request->{template} .= q{l>}; |
1648
|
0
|
|
|
|
|
0
|
$request->{len} += 4; |
1649
|
|
|
|
|
|
|
|
1650
|
0
|
|
|
|
|
0
|
foreach my $topic ( @$topics_array ) { |
1651
|
0
|
|
|
|
|
0
|
$request->{template} .= q{s>}; |
1652
|
0
|
|
|
|
|
0
|
$request->{len} += 2; |
1653
|
0
|
|
|
|
|
0
|
_encode_string( $request, $topic->{TopicName} ); # TopicName |
1654
|
|
|
|
|
|
|
|
1655
|
0
|
|
|
|
|
0
|
my $partitions_array = $topic->{partitions}; |
1656
|
0
|
|
|
|
|
0
|
push( @data, scalar( @$partitions_array ) ); # partitions array size |
1657
|
0
|
|
|
|
|
0
|
$request->{template} .= q{l>}; |
1658
|
0
|
|
|
|
|
0
|
$request->{len} += 4; |
1659
|
|
|
|
|
|
|
|
1660
|
0
|
|
|
|
|
0
|
foreach my $partition ( @$partitions_array ){ |
1661
|
|
|
|
|
|
|
push( @data, |
1662
|
|
|
|
|
|
|
$partition->{Partition}, # Partition |
1663
|
0
|
|
|
|
|
0
|
); |
1664
|
0
|
|
|
|
|
0
|
$request->{template} .= qq{l>}; |
1665
|
0
|
|
|
|
|
0
|
$request->{len} += 4; |
1666
|
|
|
|
|
|
|
} |
1667
|
|
|
|
|
|
|
} |
1668
|
0
|
|
|
|
|
0
|
return pack( $request->{template}, $request->{len}, @data ); |
1669
|
|
|
|
|
|
|
} |
1670
|
|
|
|
|
|
|
|
1671
|
|
|
|
|
|
|
# OFFSETFETCH Response -------------------------------------------------------------- |
1672
|
|
|
|
|
|
|
|
1673
|
|
|
|
|
|
|
my $_decode_offsetfetch_response_template = qq{x[l]l>l>X[l]l>/(s>/al>X[l]l>/(l>${_int64_template}s>/as>))}; |
1674
|
|
|
|
|
|
|
# x[l] # Size (skip) |
1675
|
|
|
|
|
|
|
# l> # CorrelationId |
1676
|
|
|
|
|
|
|
# l> # topics array size |
1677
|
|
|
|
|
|
|
# X[l] |
1678
|
|
|
|
|
|
|
# l>/( # topics array |
1679
|
|
|
|
|
|
|
# s>/a # TopicName |
1680
|
|
|
|
|
|
|
# l> # partitions array size |
1681
|
|
|
|
|
|
|
# X[l] |
1682
|
|
|
|
|
|
|
# l>/( # partitions array |
1683
|
|
|
|
|
|
|
# l> # Partition |
1684
|
|
|
|
|
|
|
# $_int64_template # Offset |
1685
|
|
|
|
|
|
|
# s>/a # Metadata |
1686
|
|
|
|
|
|
|
# s> # ErrorCode |
1687
|
|
|
|
|
|
|
# ) |
1688
|
|
|
|
|
|
|
# ) |
1689
|
|
|
|
|
|
|
|
1690
|
|
|
|
|
|
|
=head3 C<decode_offsetfetch_response( $bin_stream_ref )> |
1691
|
|
|
|
|
|
|
|
1692
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
1693
|
|
|
|
|
|
|
the structure of the OFFSETFETCH Response (examples see C<t/*_decode_encode.t>). |
1694
|
|
|
|
|
|
|
|
1695
|
|
|
|
|
|
|
This function takes the following arguments: |
1696
|
|
|
|
|
|
|
|
1697
|
|
|
|
|
|
|
=over 3 |
1698
|
|
|
|
|
|
|
|
1699
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
1700
|
|
|
|
|
|
|
|
1701
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
1702
|
|
|
|
|
|
|
must be a non-empty binary string. |
1703
|
|
|
|
|
|
|
|
1704
|
|
|
|
|
|
|
=back |
1705
|
|
|
|
|
|
|
|
1706
|
|
|
|
|
|
|
=cut |
1707
|
|
|
|
|
|
|
sub decode_offsetfetch_response { |
1708
|
0
|
|
|
0
|
1
|
0
|
my ( $bin_stream_ref ) = @_; |
1709
|
|
|
|
|
|
|
|
1710
|
0
|
|
|
|
|
0
|
my @data = unpack( $_decode_offsetfetch_response_template, $$bin_stream_ref ); |
1711
|
|
|
|
|
|
|
|
1712
|
0
|
|
|
|
|
0
|
my $i = 0; |
1713
|
0
|
|
|
|
|
0
|
my $OffsetFetch_Response = {}; |
1714
|
|
|
|
|
|
|
|
1715
|
0
|
|
|
|
|
0
|
$OffsetFetch_Response->{CorrelationId} = $data[ $i++ ]; #CorrelationId |
1716
|
|
|
|
|
|
|
|
1717
|
0
|
|
|
|
|
0
|
my $topics_array = $OffsetFetch_Response->{topics} = []; |
1718
|
0
|
|
|
|
|
0
|
my $topics_array_size = $data[ $i++ ]; # topics array size |
1719
|
0
|
|
|
|
|
0
|
while ( $topics_array_size-- ) { |
1720
|
0
|
|
|
|
|
0
|
my $topic = { |
1721
|
|
|
|
|
|
|
TopicName => $data[ $i++ ], # TopicName |
1722
|
|
|
|
|
|
|
}; |
1723
|
|
|
|
|
|
|
|
1724
|
0
|
|
|
|
|
0
|
my $Partition_array = $topic->{partitions} = []; |
1725
|
0
|
|
|
|
|
0
|
my $Partition_array_size = $data[ $i++ ]; # Partitions array size |
1726
|
0
|
|
|
|
|
0
|
while ( $Partition_array_size-- ) { |
1727
|
0
|
|
|
|
|
0
|
my $Partition = { |
1728
|
|
|
|
|
|
|
Partition => $data[ $i++ ], # Partition |
1729
|
|
|
|
|
|
|
Offset => $data[ $i++ ], # Partition |
1730
|
|
|
|
|
|
|
Metadata => $data[ $i++ ], # Partition |
1731
|
|
|
|
|
|
|
ErrorCode => $data[ $i++ ], # ErrorCode |
1732
|
|
|
|
|
|
|
}; |
1733
|
0
|
|
|
|
|
0
|
push( @$Partition_array, $Partition); |
1734
|
|
|
|
|
|
|
} |
1735
|
0
|
|
|
|
|
0
|
push( @$topics_array, $topic); |
1736
|
|
|
|
|
|
|
} |
1737
|
0
|
|
|
|
|
0
|
return $OffsetFetch_Response; |
1738
|
|
|
|
|
|
|
} |
1739
|
|
|
|
|
|
|
|
1740
|
|
|
|
|
|
|
# SaslHandshake Request ------------------------------------------------------------- |
1741
|
|
|
|
|
|
|
|
1742
|
|
|
|
|
|
|
=head3 C<encode_saslhandshake_request( $SaslHandshake_Request )> |
1743
|
|
|
|
|
|
|
|
1744
|
|
|
|
|
|
|
Encodes the argument and returns a reference to the encoded binary string |
1745
|
|
|
|
|
|
|
representing a Request buffer. |
1746
|
|
|
|
|
|
|
|
1747
|
|
|
|
|
|
|
This function takes the following arguments: |
1748
|
|
|
|
|
|
|
|
1749
|
|
|
|
|
|
|
=over 3 |
1750
|
|
|
|
|
|
|
|
1751
|
|
|
|
|
|
|
=item C<$SaslHandshake_Request> |
1752
|
|
|
|
|
|
|
|
1753
|
|
|
|
|
|
|
C<$SaslHandshake_Request> is a reference to the hash representing |
1754
|
|
|
|
|
|
|
the structure of the SaslHandshake Request. |
1755
|
|
|
|
|
|
|
|
1756
|
|
|
|
|
|
|
=back |
1757
|
|
|
|
|
|
|
|
1758
|
|
|
|
|
|
|
=cut |
1759
|
|
|
|
|
|
|
$IMPLEMENTED_APIVERSIONS->{$APIKEY_SASLHANDSHAKE} = 0; |
1760
|
|
|
|
|
|
|
sub encode_saslhandshake_request { |
1761
|
1
|
|
|
1
|
1
|
3
|
my ( $SaslHandshake_Request ) = @_; |
1762
|
|
|
|
|
|
|
|
1763
|
1
|
|
|
|
|
2
|
my @data; |
1764
|
1
|
|
|
|
|
3
|
my $request = { |
1765
|
|
|
|
|
|
|
# template => '...', |
1766
|
|
|
|
|
|
|
# len => ..., |
1767
|
|
|
|
|
|
|
data => \@data, |
1768
|
|
|
|
|
|
|
}; |
1769
|
|
|
|
|
|
|
|
1770
|
1
|
|
|
|
|
3
|
_encode_request_header( $request, $APIKEY_SASLHANDSHAKE, $SaslHandshake_Request ); |
1771
|
|
|
|
|
|
|
# Size |
1772
|
|
|
|
|
|
|
# ApiKey |
1773
|
|
|
|
|
|
|
# ApiVersion |
1774
|
|
|
|
|
|
|
# CorrelationId |
1775
|
|
|
|
|
|
|
# ClientId |
1776
|
|
|
|
|
|
|
|
1777
|
|
|
|
|
|
|
|
1778
|
1
|
|
|
|
|
4
|
$request->{template} .= q{s>}; # string length |
1779
|
1
|
|
|
|
|
2
|
$request->{len} += 2; |
1780
|
1
|
|
|
|
|
3
|
_encode_string( $request, $SaslHandshake_Request->{Mechanism} ); # SASL Mechanism |
1781
|
|
|
|
|
|
|
|
1782
|
1
|
|
|
|
|
12
|
return pack( $request->{template}, $request->{len}, @data ); |
1783
|
|
|
|
|
|
|
} |
1784
|
|
|
|
|
|
|
|
1785
|
|
|
|
|
|
|
# SASLHANDSHAKE Response -------------------------------------------------------------- |
1786
|
|
|
|
|
|
|
|
1787
|
|
|
|
|
|
|
my $_decode_saslhandshake_response_template = q{x[l]l>s>l>X[l]l>/(s>/a)}; |
1788
|
|
|
|
|
|
|
# x[l] # Size (skip) |
1789
|
|
|
|
|
|
|
# l> # CorrelationId |
1790
|
|
|
|
|
|
|
# s> # ErrorCode |
1791
|
|
|
|
|
|
|
# l> # ApiVersions array size |
1792
|
|
|
|
|
|
|
# X[l] |
1793
|
|
|
|
|
|
|
# l>/( # Enabled Mechanisms |
1794
|
|
|
|
|
|
|
# s>/a # Mechanism |
1795
|
|
|
|
|
|
|
# ) |
1796
|
|
|
|
|
|
|
|
1797
|
|
|
|
|
|
|
=head3 C<decode_saslhandshake_response( $bin_stream_ref )> |
1798
|
|
|
|
|
|
|
|
1799
|
|
|
|
|
|
|
Decodes the argument and returns a reference to the hash representing |
1800
|
|
|
|
|
|
|
the structure of the SaslHandshake Response. |
1801
|
|
|
|
|
|
|
|
1802
|
|
|
|
|
|
|
This function takes the following arguments: |
1803
|
|
|
|
|
|
|
|
1804
|
|
|
|
|
|
|
=over 3 |
1805
|
|
|
|
|
|
|
|
1806
|
|
|
|
|
|
|
=item C<$bin_stream_ref> |
1807
|
|
|
|
|
|
|
|
1808
|
|
|
|
|
|
|
C<$bin_stream_ref> is a reference to the encoded Response buffer. The buffer |
1809
|
|
|
|
|
|
|
must be a non-empty binary string. |
1810
|
|
|
|
|
|
|
|
1811
|
|
|
|
|
|
|
=back |
1812
|
|
|
|
|
|
|
|
1813
|
|
|
|
|
|
|
=cut |
1814
|
|
|
|
|
|
|
sub decode_saslhandshake_response { |
1815
|
0
|
|
|
0
|
1
|
0
|
my ( $bin_stream_ref ) = @_; |
1816
|
|
|
|
|
|
|
|
1817
|
0
|
|
|
|
|
0
|
my @data = unpack( $_decode_saslhandshake_response_template, $$bin_stream_ref ); |
1818
|
|
|
|
|
|
|
|
1819
|
0
|
|
|
|
|
0
|
my $i = 0; |
1820
|
0
|
|
|
|
|
0
|
my $SaslHandshake_Response = {}; |
1821
|
|
|
|
|
|
|
|
1822
|
0
|
|
|
|
|
0
|
$SaslHandshake_Response->{CorrelationId} = $data[ $i++ ]; # CorrelationId |
1823
|
0
|
|
|
|
|
0
|
$SaslHandshake_Response->{ErrorCode} = $data[ $i++ ]; # ErrorCode |
1824
|
|
|
|
|
|
|
|
1825
|
0
|
|
|
|
|
0
|
my $Mechanisms_array = $SaslHandshake_Response->{Mechanisms} = []; |
1826
|
0
|
|
|
|
|
0
|
my $Mechanisms_array_size = $data[ $i++ ]; # ApiVersions array size |
1827
|
0
|
|
|
|
|
0
|
while ( $Mechanisms_array_size-- ) { |
1828
|
0
|
|
|
|
|
0
|
push( @$Mechanisms_array, $data[ $i++ ] ); # Mechanism |
1829
|
|
|
|
|
|
|
} |
1830
|
|
|
|
|
|
|
|
1831
|
0
|
|
|
|
|
0
|
return $SaslHandshake_Response; |
1832
|
|
|
|
|
|
|
} |
1833
|
|
|
|
|
|
|
|
1834
|
|
|
|
|
|
|
#-- private functions ---------------------------------------------------------- |
1835
|
|
|
|
|
|
|
|
1836
|
|
|
|
|
|
|
# Generates a template to encrypt the request header |
1837
|
|
|
|
|
|
|
sub _encode_request_header { |
1838
|
10282
|
|
|
10282
|
|
15416
|
my ( $request, $api_key, $request_ref ) = @_; |
1839
|
|
|
|
|
|
|
|
1840
|
|
|
|
|
|
|
# we need to find out which API version to use for the request (and the |
1841
|
|
|
|
|
|
|
# response). $request_ref->{ApiVersion} can be specified by the end user, |
1842
|
|
|
|
|
|
|
# or providede by by Kafka::Connection ( see |
1843
|
|
|
|
|
|
|
# Kafka::Connection::_get_api_versions() ). If not provided, we |
1844
|
|
|
|
|
|
|
# default to $DEFAULT_APIVERSION |
1845
|
10282
|
|
66
|
|
|
22963
|
my $api_version = $request_ref->{ApiVersion} // $DEFAULT_APIVERSION; |
1846
|
10282
|
|
|
|
|
18405
|
@{ $request->{data} } = ( |
1847
|
|
|
|
|
|
|
# Size |
1848
|
|
|
|
|
|
|
$api_key, # ApiKey |
1849
|
|
|
|
|
|
|
$api_version, # ApiVersion |
1850
|
|
|
|
|
|
|
$request_ref->{CorrelationId}, # CorrelationId |
1851
|
10282
|
|
|
|
|
12270
|
); |
1852
|
10282
|
|
|
|
|
13192
|
$request->{template} = $_Request_header_template; |
1853
|
10282
|
|
|
|
|
10372
|
$request->{len} = $_Request_header_length; |
1854
|
10282
|
|
|
|
|
18720
|
_encode_string( $request, $request_ref->{ClientId} ); # ClientId |
1855
|
|
|
|
|
|
|
|
1856
|
10282
|
|
|
|
|
10938
|
return $api_version; |
1857
|
|
|
|
|
|
|
} |
1858
|
|
|
|
|
|
|
|
1859
|
|
|
|
|
|
|
# Generates a template to decrypt the fetch response body |
1860
|
|
|
|
|
|
|
sub _decode_fetch_response_template { |
1861
|
5021
|
|
|
5021
|
|
6131
|
my ( $response, $api_version ) = @_; |
1862
|
|
|
|
|
|
|
|
1863
|
5021
|
|
|
|
|
5149
|
my $is_v1 = $api_version == 1; |
1864
|
5021
|
|
|
|
|
4821
|
my $is_v2 = $api_version == 2; |
1865
|
5021
|
|
|
|
|
4247
|
my $is_v3 = $api_version == 3; |
1866
|
|
|
|
|
|
|
|
1867
|
5021
|
50
|
33
|
|
|
16095
|
if ($is_v1 || $is_v2 || $is_v3) { |
|
|
|
33
|
|
|
|
|
1868
|
0
|
|
|
|
|
0
|
$response->{template} = $_FetchResponse_header_template_v1; |
1869
|
0
|
|
|
|
|
0
|
$response->{stream_offset} = $_FetchResponse_header_length_v1; # bytes before topics array size |
1870
|
|
|
|
|
|
|
# [l] Size |
1871
|
|
|
|
|
|
|
# [l] CorrelationId |
1872
|
|
|
|
|
|
|
# [l] throttle_time_ms |
1873
|
|
|
|
|
|
|
} else { |
1874
|
5021
|
|
|
|
|
6461
|
$response->{template} = $_FetchResponse_header_template; |
1875
|
5021
|
|
|
|
|
5757
|
$response->{stream_offset} = $_FetchResponse_header_length; # bytes before topics array size |
1876
|
|
|
|
|
|
|
# [l] Size |
1877
|
|
|
|
|
|
|
# [l] CorrelationId |
1878
|
|
|
|
|
|
|
} |
1879
|
|
|
|
|
|
|
my $topics_array_size = unpack( |
1880
|
|
|
|
|
|
|
q{x[}.$response->{stream_offset} . q{]} |
1881
|
|
|
|
|
|
|
.q{l>}, # topics array size |
1882
|
5021
|
|
|
|
|
7662
|
${ $response->{bin_stream} } |
|
5021
|
|
|
|
|
10450
|
|
1883
|
|
|
|
|
|
|
); |
1884
|
5021
|
|
|
|
|
6035
|
$response->{stream_offset} += 4; # bytes before TopicName length |
1885
|
|
|
|
|
|
|
# [l] topics array size |
1886
|
|
|
|
|
|
|
|
1887
|
5021
|
|
|
|
|
5256
|
my ( $TopicName_length, $partitions_array_size ); |
1888
|
5021
|
|
|
|
|
7277
|
while ( $topics_array_size-- ) { |
1889
|
|
|
|
|
|
|
$TopicName_length = unpack( |
1890
|
|
|
|
|
|
|
q{x[}.$response->{stream_offset} |
1891
|
|
|
|
|
|
|
.q{]s>}, # TopicName length |
1892
|
5021
|
|
|
|
|
5548
|
${ $response->{bin_stream} } |
|
5021
|
|
|
|
|
7192
|
|
1893
|
|
|
|
|
|
|
); |
1894
|
|
|
|
|
|
|
$response->{stream_offset} += # bytes before partitions array size |
1895
|
5021
|
|
|
|
|
5751
|
2 # [s] TopicName length |
1896
|
|
|
|
|
|
|
+ $TopicName_length # TopicName |
1897
|
|
|
|
|
|
|
; |
1898
|
|
|
|
|
|
|
$partitions_array_size = unpack( |
1899
|
|
|
|
|
|
|
q{x[}.$response->{stream_offset} |
1900
|
|
|
|
|
|
|
.q{]l>}, # partitions array size |
1901
|
5021
|
|
|
|
|
5415
|
${ $response->{bin_stream} } |
|
5021
|
|
|
|
|
6154
|
|
1902
|
|
|
|
|
|
|
); |
1903
|
5021
|
|
|
|
|
5498
|
$response->{stream_offset} += 4; # bytes before Partition |
1904
|
|
|
|
|
|
|
# [l] partitions array size |
1905
|
|
|
|
|
|
|
|
1906
|
5021
|
|
|
|
|
6431
|
$response->{template} .= $_FetchResponse_topic_body_template; |
1907
|
5021
|
|
|
|
|
5074
|
$response->{stream_offset} += $_FetchResponse_topic_body_length; # (without TopicName and partitions array size) |
1908
|
|
|
|
|
|
|
# bytes before MessageSetSize |
1909
|
|
|
|
|
|
|
# TopicName |
1910
|
|
|
|
|
|
|
# [l] # partitions array size |
1911
|
|
|
|
|
|
|
# [l] Partition |
1912
|
|
|
|
|
|
|
# [s] ErrorCode |
1913
|
|
|
|
|
|
|
# [q] HighwaterMarkOffset |
1914
|
|
|
|
|
|
|
|
1915
|
5021
|
|
|
|
|
6566
|
_decode_MessageSet_template( $response ); |
1916
|
|
|
|
|
|
|
} |
1917
|
|
|
|
|
|
|
|
1918
|
5021
|
|
|
|
|
4960
|
return; |
1919
|
|
|
|
|
|
|
} |
1920
|
|
|
|
|
|
|
|
1921
|
|
|
|
|
|
|
# kafka uses a snappy-java compressor, with it's own headers and frame formats |
1922
|
|
|
|
|
|
|
my $XERIAL_SNAPPY_MAGIC_HEADER = "\x82SNAPPY\x00"; |
1923
|
|
|
|
|
|
|
my $XERIAL_SNAPPY_BLOCK_SIZE = 0x8000; # 32Kb |
1924
|
|
|
|
|
|
|
my $XERIAL_SNAPPY_FILE_VERSION = 1; |
1925
|
|
|
|
|
|
|
|
1926
|
|
|
|
|
|
|
# https://github.com/xerial/snappy-java |
1927
|
|
|
|
|
|
|
# https://github.com/kubo/snzip/blob/master/snappy-java-format.c |
1928
|
|
|
|
|
|
|
sub _snappy_xerial_decompress { |
1929
|
4
|
|
|
4
|
|
10
|
my ( $data ) = @_; |
1930
|
4
|
|
|
|
|
6
|
my $uncompressed; |
1931
|
4
|
|
|
|
|
8
|
my $raw_format_suspected = 1; |
1932
|
4
|
50
|
|
|
|
13
|
if ( length($data) > 16 ) { |
1933
|
4
|
|
|
|
|
18
|
my ( $header, $x_version, $x_compatversion) = unpack( q{a[8]L>L>}, $data ); |
1934
|
4
|
100
|
|
|
|
12
|
if ( $header eq $XERIAL_SNAPPY_MAGIC_HEADER ) { |
1935
|
3
|
|
|
|
|
13
|
$raw_format_suspected = 0; |
1936
|
3
|
50
|
|
|
|
10
|
_error( $ERROR_COMPRESSION, 'snappy: bad compatversion in snappy xerial header' ) unless $x_compatversion == $XERIAL_SNAPPY_FILE_VERSION; |
1937
|
3
|
50
|
|
|
|
9
|
_error( $ERROR_COMPRESSION, 'snappy: bad version in snappy xerial header' ) unless $x_version == $XERIAL_SNAPPY_FILE_VERSION; |
1938
|
3
|
|
|
|
|
9
|
$data = substr( $data, 16 ); |
1939
|
3
|
|
|
|
|
9
|
while ( length($data) > 0 ) { |
1940
|
4
|
|
100
|
|
|
18
|
$uncompressed //= ''; |
1941
|
4
|
50
|
|
|
|
9
|
_error( $ERROR_COMPRESSION, 'snappy: bad frame length header' ) if length($data) < 4; |
1942
|
4
|
|
|
|
|
9
|
my $compressed_frame_length = unpack( q{L>}, $data ); |
1943
|
4
|
|
|
|
|
10
|
$data = substr( $data, 4 ); |
1944
|
4
|
50
|
|
|
|
11
|
_error( $ERROR_COMPRESSION, 'snappy: partial frame ' ) if length($data) < $compressed_frame_length; |
1945
|
4
|
|
|
|
|
11
|
my $compressed_frame = substr( $data, 0, $compressed_frame_length, ''); |
1946
|
4
|
|
|
|
|
122
|
my $uncompressed_frame = Compress::Snappy::decompress( $compressed_frame ); |
1947
|
4
|
50
|
|
|
|
14
|
_error( $ERROR_COMPRESSION, 'snappy: can\'t uncompress frame ' ) if not defined $uncompressed_frame; |
1948
|
4
|
|
|
|
|
120
|
$uncompressed .= $uncompressed_frame; |
1949
|
|
|
|
|
|
|
} |
1950
|
|
|
|
|
|
|
} |
1951
|
|
|
|
|
|
|
} |
1952
|
4
|
100
|
|
|
|
10
|
if ( $raw_format_suspected ) { |
1953
|
1
|
|
|
|
|
16
|
$uncompressed = Compress::Snappy::decompress( $data ); |
1954
|
|
|
|
|
|
|
} |
1955
|
4
|
|
|
|
|
13
|
return $uncompressed; |
1956
|
|
|
|
|
|
|
} |
1957
|
|
|
|
|
|
|
|
1958
|
|
|
|
|
|
|
sub _snappy_xerial_compress { |
1959
|
3
|
|
|
3
|
|
586
|
my ( $data ) = @_; |
1960
|
3
|
|
|
|
|
7
|
my $compressed_data; |
1961
|
3
|
|
|
|
|
9
|
while ( length($data) ) { |
1962
|
4
|
|
|
|
|
68
|
my $block = substr $data, 0, $XERIAL_SNAPPY_BLOCK_SIZE, ''; |
1963
|
4
|
|
|
|
|
310
|
my $compressed_block = Compress::Snappy::compress( $block ); |
1964
|
4
|
50
|
|
|
|
21
|
_error( $ERROR_COMPRESSION, 'snappy: can\'t compress frame!' ) if not defined $compressed_block; |
1965
|
4
|
|
66
|
|
|
30
|
$compressed_data //= pack( q{a[8]L>L>}, $XERIAL_SNAPPY_MAGIC_HEADER, $XERIAL_SNAPPY_FILE_VERSION, $XERIAL_SNAPPY_FILE_VERSION ); |
1966
|
4
|
|
|
|
|
24
|
$compressed_data .= pack( q{L>}, length($compressed_block) ) . $compressed_block; |
1967
|
|
|
|
|
|
|
} |
1968
|
3
|
|
|
|
|
16
|
return $compressed_data; |
1969
|
|
|
|
|
|
|
} |
1970
|
|
|
|
|
|
|
|
1971
|
|
|
|
|
|
|
sub _decompress_data { |
1972
|
7
|
|
|
7
|
|
26
|
my ( $data, $compression_codec ) = @_; |
1973
|
7
|
50
|
50
|
|
|
36
|
say STDERR format_message( '[%s] decompress_data request, compression_codec: %s, data: %s', |
1974
|
|
|
|
|
|
|
scalar( localtime ), |
1975
|
|
|
|
|
|
|
$compression_codec, |
1976
|
|
|
|
|
|
|
unpack( 'H*', $data ), |
1977
|
|
|
|
|
|
|
) if Kafka::Protocol->debug_level // 0 >= 3; |
1978
|
|
|
|
|
|
|
|
1979
|
7
|
|
|
|
|
13
|
my $decompressed; |
1980
|
7
|
100
|
|
|
|
31
|
if ( $compression_codec == $COMPRESSION_GZIP ) { |
|
|
100
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
1981
|
|
|
|
|
|
|
try { |
1982
|
3
|
|
|
3
|
|
421
|
$decompressed = gunzip( $data ); |
1983
|
|
|
|
|
|
|
} catch { |
1984
|
1
|
|
|
1
|
|
20
|
_error( $ERROR_COMPRESSION, format_message( 'gunzip failed: %s', $_ ) ); |
1985
|
3
|
|
|
|
|
32
|
}; |
1986
|
|
|
|
|
|
|
} elsif ( $compression_codec == $COMPRESSION_SNAPPY ) { |
1987
|
3
|
|
33
|
|
|
9
|
$decompressed = _snappy_xerial_decompress( $data ) |
1988
|
|
|
|
|
|
|
// _error( $ERROR_COMPRESSION, 'Unable to decompress snappy compressed data' ); |
1989
|
|
|
|
|
|
|
} elsif ( $compression_codec == $COMPRESSION_LZ4 ) { |
1990
|
|
|
|
|
|
|
# https://cwiki.apache.org/confluence/display/KAFKA/KIP-57+-+Interoperable+LZ4+Framing |
1991
|
|
|
|
|
|
|
# New 0.10 clients (proposed behavior) - produce and consume v1 messages w/ correct LZ4F checksum |
1992
|
1
|
50
|
|
|
|
21
|
if ( Compress::LZ4Frame::looks_like_lz4frame( $data ) ) { |
1993
|
0
|
|
0
|
|
|
0
|
$decompressed = Compress::LZ4Frame::decompress( $data ) // _error( $ERROR_COMPRESSION, 'Unable to decompress LZ4 compressed data' ); |
1994
|
|
|
|
|
|
|
} else { |
1995
|
1
|
|
|
|
|
4
|
_error( $ERROR_COMPRESSION, 'Unable to decompress LZ4 compressed data. Frame is not valid' ); |
1996
|
|
|
|
|
|
|
} |
1997
|
|
|
|
|
|
|
|
1998
|
|
|
|
|
|
|
} else { |
1999
|
0
|
|
|
|
|
0
|
_error( $ERROR_COMPRESSION, "Unknown compression codec $compression_codec" ); |
2000
|
|
|
|
|
|
|
} |
2001
|
5
|
50
|
|
|
|
69
|
_error( $ERROR_COMPRESSION, 'Decompression produced empty result' ) unless defined $decompressed; |
2002
|
5
|
|
|
|
|
13
|
return $decompressed; |
2003
|
|
|
|
|
|
|
} |
2004
|
|
|
|
|
|
|
|
2005
|
|
|
|
|
|
|
sub _compress_data { |
2006
|
4
|
|
|
4
|
|
11
|
my ( $data, $compression_codec ) = @_; |
2007
|
4
|
|
|
|
|
5
|
my $compressed; |
2008
|
|
|
|
|
|
|
|
2009
|
|
|
|
|
|
|
# Compression |
2010
|
4
|
100
|
|
|
|
16
|
if ( $compression_codec == $COMPRESSION_GZIP ) { |
|
|
50
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
2011
|
2
|
|
33
|
|
|
426
|
$compressed = gzip( $data ) |
2012
|
|
|
|
|
|
|
// _error( $ERROR_COMPRESSION, 'Unable to compress gzip data' ); |
2013
|
|
|
|
|
|
|
} elsif ( $compression_codec == $COMPRESSION_SNAPPY ) { |
2014
|
2
|
|
33
|
|
|
8
|
$compressed = _snappy_xerial_compress( $data ) |
2015
|
|
|
|
|
|
|
// _error( $ERROR_COMPRESSION, 'Unable to compress snappy data' ); |
2016
|
|
|
|
|
|
|
} elsif ( $compression_codec == $COMPRESSION_LZ4 ) { |
2017
|
|
|
|
|
|
|
# https://cwiki.apache.org/confluence/display/KAFKA/KIP-57+-+Interoperable+LZ4+Framing |
2018
|
|
|
|
|
|
|
# New 0.10 clients (proposed behavior) - produce and consume v1 messages w/ correct LZ4F checksum |
2019
|
0
|
|
0
|
|
|
0
|
$compressed = Compress::LZ4Frame::compress_checksum( $data ) |
2020
|
|
|
|
|
|
|
// _error( $ERROR_COMPRESSION, 'Unable to compress LZ4 data' ); |
2021
|
|
|
|
|
|
|
} else { |
2022
|
0
|
|
|
|
|
0
|
_error( $ERROR_COMPRESSION, "Unknown compression codec $compression_codec" ); |
2023
|
|
|
|
|
|
|
} |
2024
|
4
|
|
|
|
|
36
|
return $compressed; |
2025
|
|
|
|
|
|
|
} |
2026
|
|
|
|
|
|
|
|
2027
|
|
|
|
|
|
|
|
2028
|
|
|
|
|
|
|
# Decrypts MessageSet |
2029
|
|
|
|
|
|
|
sub _decode_MessageSet_array { |
2030
|
10056
|
|
|
10056
|
|
137556
|
my ( $response, $MessageSetSize, $i_ref, $MessageSet_array_ref, $_override_offset) = @_; |
2031
|
|
|
|
|
|
|
# $_override_offset should not be set manually, it's used when recursing, |
2032
|
|
|
|
|
|
|
# to decode internal compressed message, which have offsets starting at 0, |
2033
|
|
|
|
|
|
|
# 1, etc, and instead we need to set the external wrapping message offset. |
2034
|
|
|
|
|
|
|
|
2035
|
10056
|
|
|
|
|
11028
|
my $data = $response->{data}; |
2036
|
10056
|
|
|
|
|
8214
|
my $data_array_size = scalar @{ $data }; |
|
10056
|
|
|
|
|
12324
|
|
2037
|
|
|
|
|
|
|
|
2038
|
|
|
|
|
|
|
# NOTE: not all messages can be returned |
2039
|
10056
|
|
|
|
|
10804
|
my ( $Message, $MessageSize, $Crc, $Key_length, $Value_length ); |
2040
|
10056
|
|
100
|
|
|
27619
|
while ( $MessageSetSize && $$i_ref < $data_array_size ) { |
2041
|
|
|
|
|
|
|
|
2042
|
25084
|
|
|
|
|
31817
|
my $message_offset = _unpack64( $data->[ $$i_ref++ ] ); |
2043
|
25084
|
100
|
|
|
|
31288
|
if (defined $_override_offset) { |
2044
|
12
|
|
|
|
|
16
|
$message_offset = $_override_offset; |
2045
|
|
|
|
|
|
|
} |
2046
|
|
|
|
|
|
|
$Message = { |
2047
|
25084
|
|
|
|
|
33756
|
Offset => $message_offset, # Offset |
2048
|
|
|
|
|
|
|
}; |
2049
|
|
|
|
|
|
|
|
2050
|
25084
|
|
|
|
|
25208
|
$MessageSize = $data->[ $$i_ref++ ]; # MessageSize |
2051
|
|
|
|
|
|
|
# NOTE: The CRC is the CRC32 of the remainder of the message bytes. |
2052
|
|
|
|
|
|
|
# This is used to check the integrity of the message on the broker and consumer: |
2053
|
|
|
|
|
|
|
# MagicByte + Attributes + Key length + Key + Value length + Value |
2054
|
25084
|
|
|
|
|
23741
|
$Crc = $data->[ $$i_ref++ ]; # Crc |
2055
|
|
|
|
|
|
|
# WARNING: The current version of the module does not support the following: |
2056
|
|
|
|
|
|
|
# A message set is also the unit of compression in Kafka, |
2057
|
|
|
|
|
|
|
# and we allow messages to recursively contain compressed message sets to allow batch compression. |
2058
|
25084
|
|
|
|
|
26659
|
$Message->{MagicByte} = $data->[ $$i_ref++ ]; # MagicByte |
2059
|
25084
|
|
|
|
|
25607
|
my $is_v1_msg_format = $Message->{MagicByte} == 1; |
2060
|
25084
|
|
|
|
|
26984
|
$Message->{Attributes} = $data->[ $$i_ref++ ]; # Attributes |
2061
|
25084
|
50
|
|
|
|
28869
|
if ($is_v1_msg_format) { |
2062
|
0
|
|
|
|
|
0
|
$Message->{Timestamp} = $data->[ $$i_ref++ ]; # Timestamp |
2063
|
|
|
|
|
|
|
} |
2064
|
|
|
|
|
|
|
|
2065
|
25084
|
|
|
|
|
24413
|
$Key_length = $data->[ $$i_ref++ ]; # Key length |
2066
|
25084
|
50
|
|
|
|
37018
|
$Message->{Key} = $Key_length == $NULL_BYTES_LENGTH ? q{} : $data->[ $$i_ref++ ]; # Key |
2067
|
25084
|
|
|
|
|
22426
|
$Value_length = $data->[ $$i_ref++ ]; # Value length |
2068
|
25084
|
50
|
|
|
|
38728
|
$Message->{Value} = $Value_length == $NULL_BYTES_LENGTH ? q{} : $data->[ $$i_ref++ ]; # Value |
2069
|
|
|
|
|
|
|
|
2070
|
25084
|
100
|
|
|
|
33024
|
if ( my $compression_codec = $Message->{Attributes} & $COMPRESSION_CODEC_MASK ) { |
2071
|
7
|
|
|
|
|
18
|
my $decompressed = _decompress_data($Message->{Value}, $compression_codec); |
2072
|
5
|
|
|
|
|
9
|
my @data; |
2073
|
5
|
|
|
|
|
8
|
my $Value_length = length $decompressed; |
2074
|
5
|
|
|
|
|
16
|
my $resp = { |
2075
|
|
|
|
|
|
|
data => \@data, |
2076
|
|
|
|
|
|
|
bin_stream => \$decompressed, |
2077
|
|
|
|
|
|
|
stream_offset => 0, |
2078
|
|
|
|
|
|
|
}; |
2079
|
5
|
|
|
|
|
12
|
_decode_MessageSet_sized_template( $Value_length, $resp ); |
2080
|
5
|
|
|
|
|
7
|
@data = unpack( $resp->{template}, ${ $resp->{bin_stream} } ); |
|
5
|
|
|
|
|
30
|
|
2081
|
5
|
|
|
|
|
10
|
my $i = 0; # i_ref |
2082
|
5
|
|
|
|
|
8
|
my $size = length( $decompressed ); |
2083
|
5
|
|
|
|
|
20
|
_decode_MessageSet_array( |
2084
|
|
|
|
|
|
|
$resp, |
2085
|
|
|
|
|
|
|
$size, # message set size |
2086
|
|
|
|
|
|
|
\$i, # i_ref |
2087
|
|
|
|
|
|
|
$MessageSet_array_ref, |
2088
|
|
|
|
|
|
|
$message_offset |
2089
|
|
|
|
|
|
|
); |
2090
|
|
|
|
|
|
|
} else { |
2091
|
25077
|
|
|
|
|
29170
|
push( @$MessageSet_array_ref, $Message ); |
2092
|
|
|
|
|
|
|
} |
2093
|
|
|
|
|
|
|
|
2094
|
25082
|
|
|
|
|
50672
|
$MessageSetSize -= 12 |
2095
|
|
|
|
|
|
|
# [q] Offset |
2096
|
|
|
|
|
|
|
# [l] MessageSize |
2097
|
|
|
|
|
|
|
+ $MessageSize # Message |
2098
|
|
|
|
|
|
|
; |
2099
|
|
|
|
|
|
|
} |
2100
|
|
|
|
|
|
|
|
2101
|
10054
|
|
|
|
|
14094
|
return; |
2102
|
|
|
|
|
|
|
} |
2103
|
|
|
|
|
|
|
|
2104
|
|
|
|
|
|
|
# Generates a template to encode single message within MessageSet |
2105
|
|
|
|
|
|
|
sub _encode_Message { |
2106
|
25164
|
|
|
25164
|
|
51156
|
my ($request, $Key, $Value, $Attributes, $Offset, $v1_format, $Timestamp) = @_; |
2107
|
|
|
|
|
|
|
|
2108
|
|
|
|
|
|
|
# v1 format - supported since 0.10.0, introduces Timestamps |
2109
|
25164
|
50
|
|
|
|
31781
|
my $MagicByte = $v1_format ? 1 : 0; |
2110
|
25164
|
|
50
|
|
|
58416
|
$Timestamp //= -1; |
2111
|
25164
|
|
33
|
|
|
28372
|
$Attributes //= $COMPRESSION_NONE; # According to Apache Kafka documentation: |
2112
|
|
|
|
|
|
|
# The lowest 2 bits contain the compression codec used for the message. |
2113
|
|
|
|
|
|
|
# The other bits should be set to 0. |
2114
|
|
|
|
|
|
|
|
2115
|
|
|
|
|
|
|
|
2116
|
25164
|
|
|
|
|
22643
|
my $key_length = length( $Key ); |
2117
|
25164
|
|
|
|
|
20373
|
my $value_length = length( $Value ); |
2118
|
|
|
|
|
|
|
|
2119
|
25164
|
50
|
|
|
|
107423
|
my $message_body = pack( |
|
|
50
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
2120
|
|
|
|
|
|
|
q{cc} # MagicByte |
2121
|
|
|
|
|
|
|
# Attributes |
2122
|
|
|
|
|
|
|
.( $v1_format ? q{a[8]} : q{} ) # Timestamp - v1 only (when MagicByte > 0) (#$_int64_template) |
2123
|
|
|
|
|
|
|
.q{l>} # Key length |
2124
|
|
|
|
|
|
|
.( $key_length ? qq{a[$key_length]} : q{} ) # Key |
2125
|
|
|
|
|
|
|
.q{l>} # Value length |
2126
|
|
|
|
|
|
|
.( $value_length ? qq{a[$value_length]} : q{} ) # Value |
2127
|
|
|
|
|
|
|
, |
2128
|
|
|
|
|
|
|
$MagicByte, |
2129
|
|
|
|
|
|
|
$Attributes, |
2130
|
|
|
|
|
|
|
$v1_format ? ( _pack64( $Timestamp ) ) : (), |
2131
|
|
|
|
|
|
|
$key_length ? ( $key_length, $Key ) : ( $NULL_BYTES_LENGTH ), |
2132
|
|
|
|
|
|
|
$value_length ? ( $value_length, $Value ) : ( $NULL_BYTES_LENGTH ), |
2133
|
|
|
|
|
|
|
); |
2134
|
|
|
|
|
|
|
|
2135
|
25164
|
|
|
|
|
24694
|
my $MessageBodySize = length($message_body); |
2136
|
25164
|
|
|
|
|
21375
|
my $MessageSize = $MessageBodySize + 4; |
2137
|
|
|
|
|
|
|
|
2138
|
25164
|
|
|
|
|
22447
|
my $data = $request->{data}; |
2139
|
25164
|
|
|
|
|
33568
|
$request->{template} .= $_MessageSet_template . qq{l>a[$MessageBodySize]}; # crc + message_body |
2140
|
25164
|
|
|
|
|
24967
|
$request->{len} += $_MessageSet_length + $MessageSize; |
2141
|
|
|
|
|
|
|
|
2142
|
25164
|
|
|
|
|
29681
|
push @$data, (_pack64( $Offset ), $MessageSize, crc32( $message_body ), $message_body ); |
2143
|
25164
|
|
|
|
|
52992
|
return; |
2144
|
|
|
|
|
|
|
} |
2145
|
|
|
|
|
|
|
|
2146
|
|
|
|
|
|
|
# Generates a template to encode MessageSet |
2147
|
|
|
|
|
|
|
sub _encode_MessageSet_array { |
2148
|
10127
|
|
|
10127
|
|
29323
|
my ( $request, $MessageSet_array_ref, $compression_codec ) = @_; |
2149
|
|
|
|
|
|
|
|
2150
|
|
|
|
|
|
|
# not sure if it would be good to mix different formats in different messages in the same set |
2151
|
|
|
|
|
|
|
# so detect if we should use v1 format |
2152
|
10127
|
|
|
|
|
8892
|
my $use_v1_format; |
2153
|
10127
|
|
|
|
|
10666
|
foreach my $MessageSet ( @$MessageSet_array_ref ) { |
2154
|
25160
|
50
|
|
|
|
35307
|
if ( $MessageSet->{Timestamp} ) { |
2155
|
0
|
|
|
|
|
0
|
$use_v1_format = 1; |
2156
|
0
|
|
|
|
|
0
|
last; |
2157
|
|
|
|
|
|
|
} |
2158
|
|
|
|
|
|
|
} |
2159
|
|
|
|
|
|
|
|
2160
|
10127
|
100
|
|
|
|
12826
|
if ( $compression_codec ) { |
2161
|
4
|
|
|
|
|
13
|
my $subrequest = { |
2162
|
|
|
|
|
|
|
data => [], |
2163
|
|
|
|
|
|
|
template => '', |
2164
|
|
|
|
|
|
|
len => 0 |
2165
|
|
|
|
|
|
|
}; |
2166
|
4
|
|
|
|
|
8
|
my ( $Key, $Value ); |
2167
|
|
|
|
|
|
|
|
2168
|
4
|
|
|
|
|
9
|
foreach my $MessageSet ( @$MessageSet_array_ref ) { |
2169
|
|
|
|
|
|
|
_encode_Message( $subrequest, |
2170
|
|
|
|
|
|
|
$Key = $MessageSet->{Key}, |
2171
|
|
|
|
|
|
|
$MessageSet->{Value}, |
2172
|
|
|
|
|
|
|
$COMPRESSION_NONE, |
2173
|
|
|
|
|
|
|
$PRODUCER_ANY_OFFSET, |
2174
|
|
|
|
|
|
|
$use_v1_format, |
2175
|
|
|
|
|
|
|
$MessageSet->{Timestamp} |
2176
|
10
|
|
|
|
|
30
|
); |
2177
|
|
|
|
|
|
|
} |
2178
|
|
|
|
|
|
|
|
2179
|
4
|
|
|
|
|
8
|
$Value = pack($subrequest->{template}, @{$subrequest->{data}}); |
|
4
|
|
|
|
|
16
|
|
2180
|
|
|
|
|
|
|
|
2181
|
4
|
|
|
|
|
27
|
$MessageSet_array_ref = [ |
2182
|
|
|
|
|
|
|
{ |
2183
|
|
|
|
|
|
|
Offset => $PRODUCER_ANY_OFFSET, |
2184
|
|
|
|
|
|
|
Key => $Key, |
2185
|
|
|
|
|
|
|
Value => _compress_data($Value, $compression_codec), |
2186
|
|
|
|
|
|
|
} |
2187
|
|
|
|
|
|
|
]; |
2188
|
|
|
|
|
|
|
|
2189
|
|
|
|
|
|
|
} |
2190
|
|
|
|
|
|
|
|
2191
|
10127
|
|
|
|
|
19578
|
my $subrequest = { |
2192
|
|
|
|
|
|
|
data => [], |
2193
|
|
|
|
|
|
|
template => '', |
2194
|
|
|
|
|
|
|
len => 0 |
2195
|
|
|
|
|
|
|
}; |
2196
|
|
|
|
|
|
|
|
2197
|
10127
|
|
|
|
|
13905
|
foreach my $MessageSet ( @$MessageSet_array_ref ) { |
2198
|
|
|
|
|
|
|
_encode_Message( $subrequest, |
2199
|
|
|
|
|
|
|
$MessageSet->{Key}, |
2200
|
|
|
|
|
|
|
$MessageSet->{Value}, |
2201
|
|
|
|
|
|
|
$compression_codec // $COMPRESSION_NONE, |
2202
|
|
|
|
|
|
|
$MessageSet->{Offset}, |
2203
|
|
|
|
|
|
|
$use_v1_format, |
2204
|
|
|
|
|
|
|
$MessageSet->{Timestamp} |
2205
|
25154
|
|
66
|
|
|
84704
|
); |
2206
|
|
|
|
|
|
|
} |
2207
|
|
|
|
|
|
|
|
2208
|
10127
|
|
|
|
|
12219
|
my $data = $request->{data}; |
2209
|
10127
|
|
|
|
|
15795
|
$request->{template} .= q{l>} . $subrequest->{template}; |
2210
|
10127
|
|
|
|
|
10621
|
$request->{len} += 4 + $subrequest->{len}; |
2211
|
10127
|
|
|
|
|
10852
|
push @$data, ( $subrequest->{len}, @{ $subrequest->{data} } ); |
|
10127
|
|
|
|
|
21264
|
|
2212
|
|
|
|
|
|
|
|
2213
|
10127
|
|
|
|
|
24685
|
return; |
2214
|
|
|
|
|
|
|
} |
2215
|
|
|
|
|
|
|
|
2216
|
|
|
|
|
|
|
# Generates a template to decrypt MessageSet |
2217
|
|
|
|
|
|
|
sub _decode_MessageSet_template { |
2218
|
10051
|
|
|
10051
|
|
202049
|
my ( $response ) = @_; |
2219
|
|
|
|
|
|
|
|
2220
|
|
|
|
|
|
|
my $MessageSetSize = unpack( |
2221
|
|
|
|
|
|
|
q{x[}.$response->{stream_offset} |
2222
|
|
|
|
|
|
|
.q{]l>}, # MessageSetSize |
2223
|
10051
|
|
|
|
|
12305
|
${ $response->{bin_stream} } |
|
10051
|
|
|
|
|
13723
|
|
2224
|
|
|
|
|
|
|
); |
2225
|
10051
|
|
|
|
|
12633
|
$response->{template} .= q{l>}; # MessageSetSize |
2226
|
10051
|
|
|
|
|
8961
|
$response->{stream_offset} += 4; # bytes before Offset |
2227
|
|
|
|
|
|
|
|
2228
|
10051
|
|
|
|
|
13631
|
return _decode_MessageSet_sized_template($MessageSetSize, $response); |
2229
|
|
|
|
|
|
|
} |
2230
|
|
|
|
|
|
|
|
2231
|
|
|
|
|
|
|
sub _decode_MessageSet_sized_template { |
2232
|
10056
|
|
|
10056
|
|
11688
|
my ( $MessageSetSize, $response ) = @_; |
2233
|
|
|
|
|
|
|
|
2234
|
10056
|
|
|
|
|
8722
|
my $bin_stream_length = length ${ $response->{bin_stream} }; |
|
10056
|
|
|
|
|
11734
|
|
2235
|
|
|
|
|
|
|
|
2236
|
10056
|
|
|
|
|
10997
|
my ( $local_template, $MessageSize, $MagicByte, $Key_length, $Value_length ); |
2237
|
|
|
|
|
|
|
CREATE_TEMPLATE: |
2238
|
10056
|
|
|
|
|
13581
|
while ( $MessageSetSize ) { |
2239
|
|
|
|
|
|
|
# Not the full MessageSet |
2240
|
|
|
|
|
|
|
# 22 is the minimal size of a v0 message format until (and including) the Key |
2241
|
|
|
|
|
|
|
# Length. If the message version is v1, then it's 22 + 8. We'll check later |
2242
|
25090
|
100
|
|
|
|
28152
|
last CREATE_TEMPLATE if $MessageSetSize < 22; |
2243
|
|
|
|
|
|
|
|
2244
|
|
|
|
|
|
|
# [q] Offset |
2245
|
|
|
|
|
|
|
# [l] MessageSize |
2246
|
|
|
|
|
|
|
# [l] Crc |
2247
|
|
|
|
|
|
|
# [c] MagicByte |
2248
|
|
|
|
|
|
|
# [c] Attributes |
2249
|
|
|
|
|
|
|
# ( [q] Timestamp ) message format v1 only |
2250
|
|
|
|
|
|
|
# [l] Key length |
2251
|
|
|
|
|
|
|
# [l] Value length |
2252
|
|
|
|
|
|
|
|
2253
|
25088
|
|
|
|
|
21830
|
$local_template = q{}; |
2254
|
|
|
|
|
|
|
MESSAGE_SET: |
2255
|
|
|
|
|
|
|
{ |
2256
|
25088
|
|
|
|
|
19318
|
$response->{stream_offset} += 8; # the size of the offset data value |
|
25088
|
|
|
|
|
20642
|
|
2257
|
|
|
|
|
|
|
($MessageSize, $MagicByte) = unpack( |
2258
|
|
|
|
|
|
|
q{x[}.$response->{stream_offset}.q{]} |
2259
|
|
|
|
|
|
|
.q{l>} # MessageSize |
2260
|
|
|
|
|
|
|
.q{x[l]} # Crc |
2261
|
|
|
|
|
|
|
.q{c}, # MagicByte |
2262
|
|
|
|
|
|
|
|
2263
|
25088
|
|
|
|
|
28906
|
${ $response->{bin_stream} } |
|
25088
|
|
|
|
|
43248
|
|
2264
|
|
|
|
|
|
|
); |
2265
|
|
|
|
|
|
|
|
2266
|
25088
|
|
|
|
|
28951
|
my $is_v1_msg_format = $MagicByte == 1; |
2267
|
25088
|
50
|
33
|
|
|
31695
|
if ($is_v1_msg_format && $MessageSetSize < (22+8)) { |
2268
|
|
|
|
|
|
|
# Not the full MessageSet |
2269
|
0
|
|
|
|
|
0
|
$local_template = q{}; |
2270
|
0
|
|
|
|
|
0
|
last MESSAGE_SET; |
2271
|
|
|
|
|
|
|
} |
2272
|
25088
|
50
|
|
|
|
27513
|
$local_template .= ( $is_v1_msg_format ? $_Message_template_with_timestamp : $_Message_template ); |
2273
|
|
|
|
|
|
|
|
2274
|
25088
|
50
|
|
|
|
26590
|
$response->{stream_offset} += ($is_v1_msg_format ? 18: 10); |
2275
|
|
|
|
|
|
|
|
2276
|
|
|
|
|
|
|
$Key_length = unpack( |
2277
|
|
|
|
|
|
|
q{x[}.$response->{stream_offset} |
2278
|
|
|
|
|
|
|
.q{]l>}, # Key length |
2279
|
25088
|
|
|
|
|
24818
|
${ $response->{bin_stream} } |
|
25088
|
|
|
|
|
30689
|
|
2280
|
|
|
|
|
|
|
); |
2281
|
|
|
|
|
|
|
|
2282
|
25088
|
|
|
|
|
26497
|
$response->{stream_offset} += 4; # bytes before Key or Value length |
2283
|
|
|
|
|
|
|
# [l] Key length |
2284
|
25088
|
50
|
|
|
|
28484
|
$response->{stream_offset} += $Key_length # bytes before Key |
2285
|
|
|
|
|
|
|
if $Key_length != $NULL_BYTES_LENGTH; # Key |
2286
|
25088
|
100
|
|
|
|
27586
|
if ( $bin_stream_length >= $response->{stream_offset} + 4 ) { # + [l] Value length |
2287
|
25086
|
50
|
|
|
|
28259
|
$local_template .= $_Key_or_Value_template |
2288
|
|
|
|
|
|
|
if $Key_length != $NULL_BYTES_LENGTH; |
2289
|
|
|
|
|
|
|
} else { |
2290
|
|
|
|
|
|
|
# Not the full MessageSet |
2291
|
2
|
|
|
|
|
4
|
$local_template = q{}; |
2292
|
2
|
|
|
|
|
3
|
last MESSAGE_SET; |
2293
|
|
|
|
|
|
|
} |
2294
|
|
|
|
|
|
|
|
2295
|
25086
|
|
|
|
|
21213
|
$local_template .= q{l>}; # Value length |
2296
|
|
|
|
|
|
|
$Value_length = unpack( |
2297
|
|
|
|
|
|
|
q{x[}.$response->{stream_offset} |
2298
|
|
|
|
|
|
|
.q{]l>}, # Value length |
2299
|
25086
|
|
|
|
|
24080
|
${ $response->{bin_stream} } |
|
25086
|
|
|
|
|
31747
|
|
2300
|
|
|
|
|
|
|
); |
2301
|
|
|
|
|
|
|
$response->{stream_offset} += # bytes before Value or next Message |
2302
|
25086
|
|
|
|
|
25333
|
4 # [l] Value length |
2303
|
|
|
|
|
|
|
; |
2304
|
25086
|
50
|
|
|
|
29557
|
$response->{stream_offset} += $Value_length # bytes before next Message |
2305
|
|
|
|
|
|
|
if $Value_length != $NULL_BYTES_LENGTH; # Value |
2306
|
25086
|
100
|
|
|
|
27178
|
if ( $bin_stream_length >= $response->{stream_offset} ) { |
2307
|
25084
|
50
|
|
|
|
31594
|
$local_template .= $_Key_or_Value_template |
2308
|
|
|
|
|
|
|
if $Value_length != $NULL_BYTES_LENGTH; |
2309
|
|
|
|
|
|
|
} else { |
2310
|
|
|
|
|
|
|
# Not the full MessageSet |
2311
|
2
|
|
|
|
|
4
|
$local_template = q{}; |
2312
|
2
|
|
|
|
|
4
|
last MESSAGE_SET; |
2313
|
|
|
|
|
|
|
} |
2314
|
|
|
|
|
|
|
} |
2315
|
|
|
|
|
|
|
|
2316
|
25088
|
100
|
|
|
|
24560
|
if ( $local_template ) { |
2317
|
25084
|
|
|
|
|
25312
|
$response->{template} .= $local_template; |
2318
|
25084
|
|
|
|
|
33773
|
$MessageSetSize -= 12 |
2319
|
|
|
|
|
|
|
# [q] Offset |
2320
|
|
|
|
|
|
|
# [l] MessageSize |
2321
|
|
|
|
|
|
|
+ $MessageSize # Message |
2322
|
|
|
|
|
|
|
; |
2323
|
|
|
|
|
|
|
} else { |
2324
|
4
|
|
|
|
|
6
|
last CREATE_TEMPLATE; |
2325
|
|
|
|
|
|
|
} |
2326
|
|
|
|
|
|
|
} |
2327
|
|
|
|
|
|
|
|
2328
|
10056
|
|
|
|
|
17328
|
return; |
2329
|
|
|
|
|
|
|
} |
2330
|
|
|
|
|
|
|
|
2331
|
|
|
|
|
|
|
# Generates a template to encrypt string |
2332
|
|
|
|
|
|
|
sub _encode_string { |
2333
|
30793
|
|
|
30793
|
|
863231
|
my ( $request, $string ) = @_; |
2334
|
|
|
|
|
|
|
|
2335
|
30793
|
100
|
|
|
|
38447
|
if ( $string eq q{} ) { |
2336
|
131
|
|
|
|
|
216
|
push( @{ $request->{data} }, 0 ); |
|
131
|
|
|
|
|
500
|
|
2337
|
|
|
|
|
|
|
} else { |
2338
|
30662
|
|
|
|
|
27319
|
my $string_length = length $string; |
2339
|
30662
|
|
|
|
|
25517
|
push( @{ $request->{data} }, $string_length, $string ); |
|
30662
|
|
|
|
|
37724
|
|
2340
|
30662
|
|
|
|
|
41291
|
$request->{template} .= q{a*}; # string; |
2341
|
30662
|
|
|
|
|
30807
|
$request->{len} += $string_length; |
2342
|
|
|
|
|
|
|
} |
2343
|
|
|
|
|
|
|
|
2344
|
30793
|
|
|
|
|
33200
|
return; |
2345
|
|
|
|
|
|
|
} |
2346
|
|
|
|
|
|
|
|
2347
|
|
|
|
|
|
|
# Handler for errors |
2348
|
|
|
|
|
|
|
sub _error { |
2349
|
2
|
|
|
2
|
|
10
|
Kafka::Exception::Protocol->throw( throw_args( @_ ) ); |
2350
|
|
|
|
|
|
|
|
2351
|
0
|
|
|
|
|
|
return; |
2352
|
|
|
|
|
|
|
} |
2353
|
|
|
|
|
|
|
|
2354
|
|
|
|
|
|
|
1; |
2355
|
|
|
|
|
|
|
|
2356
|
|
|
|
|
|
|
__END__ |
2357
|
|
|
|
|
|
|
|
2358
|
|
|
|
|
|
|
=head1 DIAGNOSTICS |
2359
|
|
|
|
|
|
|
|
2360
|
|
|
|
|
|
|
In order to achieve better performance, functions of this module do not perform |
2361
|
|
|
|
|
|
|
arguments validation. |
2362
|
|
|
|
|
|
|
|
2363
|
|
|
|
|
|
|
=head1 SEE ALSO |
2364
|
|
|
|
|
|
|
|
2365
|
|
|
|
|
|
|
The basic operation of the Kafka package modules: |
2366
|
|
|
|
|
|
|
|
2367
|
|
|
|
|
|
|
L<Kafka|Kafka> - constants and messages used by the Kafka package modules. |
2368
|
|
|
|
|
|
|
|
2369
|
|
|
|
|
|
|
L<Kafka::Connection|Kafka::Connection> - interface to connect to a Kafka cluster. |
2370
|
|
|
|
|
|
|
|
2371
|
|
|
|
|
|
|
L<Kafka::Producer|Kafka::Producer> - interface for producing client. |
2372
|
|
|
|
|
|
|
|
2373
|
|
|
|
|
|
|
L<Kafka::Consumer|Kafka::Consumer> - interface for consuming client. |
2374
|
|
|
|
|
|
|
|
2375
|
|
|
|
|
|
|
L<Kafka::Message|Kafka::Message> - interface to access Kafka message |
2376
|
|
|
|
|
|
|
properties. |
2377
|
|
|
|
|
|
|
|
2378
|
|
|
|
|
|
|
L<Kafka::Int64|Kafka::Int64> - functions to work with 64 bit elements of the |
2379
|
|
|
|
|
|
|
protocol on 32 bit systems. |
2380
|
|
|
|
|
|
|
|
2381
|
|
|
|
|
|
|
L<Kafka::Protocol|Kafka::Protocol> - functions to process messages in the |
2382
|
|
|
|
|
|
|
Apache Kafka's Protocol. |
2383
|
|
|
|
|
|
|
|
2384
|
|
|
|
|
|
|
L<Kafka::IO|Kafka::IO> - low-level interface for communication with Kafka server. |
2385
|
|
|
|
|
|
|
|
2386
|
|
|
|
|
|
|
L<Kafka::Exceptions|Kafka::Exceptions> - module designated to handle Kafka exceptions. |
2387
|
|
|
|
|
|
|
|
2388
|
|
|
|
|
|
|
L<Kafka::Internals|Kafka::Internals> - internal constants and functions used |
2389
|
|
|
|
|
|
|
by several package modules. |
2390
|
|
|
|
|
|
|
|
2391
|
|
|
|
|
|
|
A wealth of detail about the Apache Kafka and the Kafka Protocol: |
2392
|
|
|
|
|
|
|
|
2393
|
|
|
|
|
|
|
Main page at L<http://kafka.apache.org/> |
2394
|
|
|
|
|
|
|
|
2395
|
|
|
|
|
|
|
Kafka Protocol at L<https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol> |
2396
|
|
|
|
|
|
|
|
2397
|
|
|
|
|
|
|
=head1 SOURCE CODE |
2398
|
|
|
|
|
|
|
|
2399
|
|
|
|
|
|
|
Kafka package is hosted on GitHub: |
2400
|
|
|
|
|
|
|
L<https://github.com/TrackingSoft/Kafka> |
2401
|
|
|
|
|
|
|
|
2402
|
|
|
|
|
|
|
=head1 AUTHOR |
2403
|
|
|
|
|
|
|
|
2404
|
|
|
|
|
|
|
Sergey Gladkov |
2405
|
|
|
|
|
|
|
|
2406
|
|
|
|
|
|
|
Please use GitHub project link above to report problems or contact authors. |
2407
|
|
|
|
|
|
|
|
2408
|
|
|
|
|
|
|
=head1 CONTRIBUTORS |
2409
|
|
|
|
|
|
|
|
2410
|
|
|
|
|
|
|
Alexander Solovey |
2411
|
|
|
|
|
|
|
|
2412
|
|
|
|
|
|
|
Jeremy Jordan |
2413
|
|
|
|
|
|
|
|
2414
|
|
|
|
|
|
|
Sergiy Zuban |
2415
|
|
|
|
|
|
|
|
2416
|
|
|
|
|
|
|
Vlad Marchenko |
2417
|
|
|
|
|
|
|
|
2418
|
|
|
|
|
|
|
Damien Krotkine |
2419
|
|
|
|
|
|
|
|
2420
|
|
|
|
|
|
|
Greg Franklin |
2421
|
|
|
|
|
|
|
|
2422
|
|
|
|
|
|
|
=head1 COPYRIGHT AND LICENSE |
2423
|
|
|
|
|
|
|
|
2424
|
|
|
|
|
|
|
Copyright (C) 2012-2017 by TrackingSoft LLC. |
2425
|
|
|
|
|
|
|
|
2426
|
|
|
|
|
|
|
This package is free software; you can redistribute it and/or modify it under |
2427
|
|
|
|
|
|
|
the same terms as Perl itself. See I<perlartistic> at |
2428
|
|
|
|
|
|
|
L<http://dev.perl.org/licenses/artistic.html>. |
2429
|
|
|
|
|
|
|
|
2430
|
|
|
|
|
|
|
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
2431
|
|
|
|
|
|
|
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A |
2432
|
|
|
|
|
|
|
PARTICULAR PURPOSE. |
2433
|
|
|
|
|
|
|
|
2434
|
|
|
|
|
|
|
=cut |