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package Data::Riak::Fast::MapReduce::Phase::Map; |
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use Mouse; |
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use Mouse::Util::TypeConstraints; |
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use JSON::XS (); |
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8622
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# ABSTRACT: Map phase of a MapReduce |
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with ('Data::Riak::Fast::MapReduce::Phase'); |
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=head1 DESCRIPTION |
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A map/reduce map phase for Data::Riak::Fast |
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=head1 SYNOPSIS |
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my $mp = Data::Riak::Fast::MapReduce::Phase::Map->new( |
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language => "javascript", # The default |
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source => "function(v) { return [ v ] }", |
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keep => 1 # The default |
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); |
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=head2 keep |
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Flag controlling whether the results of this phase are included in the final |
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result of the map/reduce. Defaults to true. |
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=head2 language |
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The language used with this phase. One of C or C. This |
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attribute is required. |
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=cut |
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has language => ( |
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is => 'ro', |
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isa => enum([qw(javascript erlang)]), |
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required => 1 |
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); |
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=head2 name |
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The name, used with built-in functions provided by Riak such as |
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C. |
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=cut |
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has name => ( |
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is => 'ro', |
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isa => 'Str', |
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predicate => 'has_name' |
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); |
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has phase => ( |
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is => 'ro', |
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isa => 'Str', |
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default => 'map' |
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); |
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=head2 arg |
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The static argument passed to the map function. |
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=cut |
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has arg => ( |
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is => 'ro', |
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isa => 'Str|HashRef', |
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predicate => 'has_arg' |
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); |
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=head2 module |
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The module name, if you are using a riak built-in function. |
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=cut |
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has module => ( |
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is => 'ro', |
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isa => 'Str', |
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predicate => 'has_module' |
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); |
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=head2 function |
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The function name, if you are using a riak built-in function. |
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=cut |
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has function => ( |
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is => 'ro', |
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isa => 'Str', |
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predicate => 'has_function' |
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); |
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=head2 source |
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The source of the function used in this phase. |
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100
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=cut |
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has source => ( |
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is => 'ro', |
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isa => 'Str', |
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predicate => 'has_source' |
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); |
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108
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=head1 METHOD |
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=head2 pack() |
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111
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Serialize this map phase. |
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113
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=cut |
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115
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sub pack { |
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my $self = shift; |
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my $href = {}; |
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$href->{keep} = $self->keep ? JSON::XS::true() : JSON::XS::false() if $self->has_keep; |
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$href->{language} = $self->language; |
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$href->{name} = $self->name if $self->has_name; |
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$href->{source} = $self->source if $self->has_source; |
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$href->{module} = $self->module if $self->has_module; |
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$href->{function} = $self->function if $self->has_function; |
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$href->{arg} = $self->arg if $self->has_arg; |
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$href; |
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} |
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1; |