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package AnyEvent::RPC; |
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use 5.006000; |
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use common::sense 2; |
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m{ |
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use strict; |
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use warnings; |
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}; # Until cpants will know it make strict |
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use Carp; |
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=head1 NAME |
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AnyEvent::RPC - Abstract framework for Asyncronous RPC clients |
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=cut |
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our $VERSION = '0.05'; |
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=head1 SYNOPSIS |
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use AnyEvent::RPC; |
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my $rpc = AnyEvent::RPC->new( |
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host => 'your.api.host', |
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port => 8080, |
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base => '/api/rest/', |
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type => 'REST', # or type => '+AnyEvent::RPC::Enc::REST', |
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) |
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$rpc->req( # will be called as GET http://your.api.host:8080/api/rest/method/path/args?query=param |
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call => [ method => qw(path args)], |
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query => { query => 'param' }, |
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cb => sub { # ( response, code, error ) |
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if (my $response = shift) { |
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# |
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} else { |
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my ($code,$err) = @_; |
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} |
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}, |
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); |
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=cut |
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sub ua { shift->{ua} } |
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sub encoder { shift->{encoder} } |
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sub new { |
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my $pkg = shift; |
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my $self = bless {}, $pkg; |
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$self->init(@_); |
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$self->components; |
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$self; |
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} |
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sub init { |
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my $self = shift; |
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local $SIG{__WARN__} = sub { local $_ = shift; s{\n$}{};carp $_ }; |
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my %args = ( |
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base => '/', |
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@_ |
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); |
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@$self{keys %args} = values %args; |
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$self->{$_} or croak "$_ not defined" for qw(host); |
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$self->{useragent} ||= 'AnyEvent::RPC/'.$AnyEvent::RPC::VERSION; |
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return; |
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} |
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sub components { |
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my $self = shift; |
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my $package = ref $self; |
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unless ( ref $self->{encoder} ) { |
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$self->{encoder} = $self->_load( |
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'::Enc', $self->{encoder}, 'REST', |
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debug => $self->{debug}, |
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); |
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} |
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unless ( ref $self->{ua} ) { |
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$self->{ua} = $self->_load( |
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'::UA', $self->{ua}, '', |
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ua => $self->{useragent} || $package.'/'.( do{ no strict 'refs'; ${$package.'::VERSION'} } || $VERSION ), |
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2
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997
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0
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81
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timeout => $self->{timeout}, |
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debug => $self->{debug}, |
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); |
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} |
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return; |
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} |
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sub _load { |
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my $pkg = shift; |
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my ($suffix,$req,$default,@args) = @_; |
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my $prefix = __PACKAGE__.$suffix; |
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if (defined $req) { |
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$req =~ s{^\+}{} or $req = $prefix.'::'.$req; |
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} else { |
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$req = $prefix.($default ? '::'.$default : '' ); |
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} |
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eval { |
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$req->can('new') |
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or require join '/', split '::', $req.'.pm'; |
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1; |
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} |
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or do { |
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croak "Can't load $req: $@\n"; |
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}; |
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return $req->new(@args) or croak "$req not created"; |
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} |
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sub req { |
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my $self = shift; |
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my %args = @_; |
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croak("req have no cb and useragent is async") unless $args{cb}; |
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#my ( $methodname, @params ) = @{ $args{call} }; |
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#my $uri = "$url#$methodname"; |
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my %req = $self->encoder->request( $self, %args ); |
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#warn "request: ".dumper(\%req) if $args{debug} or $self->{debug} > 2; |
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#my $start = time; |
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my @data; |
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#warn "Call $body"; |
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$self->ua->call( |
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($args{method} || $req{method} || 'POST') => $req{uri}, |
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headers => { |
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exists $req{headers} ? ( %{$req{headers}} ) : (), |
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exists $args{headers} ? ( %{$args{headers}} ) : (), |
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}, |
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exists $req{body} ? (body => $req{body}) : (), |
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cb => sub { |
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my $res = shift; |
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my @rv = $self->encoder->decode($self, $res); |
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$args{cb}(@rv); |
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return; |
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my @data; |
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{ |
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( my $status = $res->status_line )=~ s/:?\s*$//s; |
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135
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$res->code == 200 or #$args{cb}(undef); |
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@data = |
137
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(rpcfault( $res->code, "Call to $req{uri} failed: $status" )) |
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and last; |
139
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my $text = $res->content; |
140
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length($text) and $text =~ /^\s*<\?xml/s or @data = |
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141
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({fault=>{ faultCode => 499, faultString => "Call to $req{uri} failed: Response is not an XML: \"$text\"" }}) |
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and last; |
143
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eval { |
144
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@data = $self->encoder->decode( $text ); |
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1; |
146
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} or @data = |
147
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({fault=>{ faultCode => 499, faultString => "Call to $req{uri} failed: Bad Response: $@, \"$text\"" }}) |
148
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and last; |
149
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} |
150
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#warn "Have data @data"; |
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if ($args{cb}) {{ |
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152
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#local $faultCode = $data[0]{fault}{faultCode} if ref $data[0] eq 'HASH' and exists $data[0]{fault}; |
153
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$args{cb}(@data); |
154
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return; |
155
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}} |
156
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}, |
157
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); |
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158
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$args{cb} and defined wantarray and carp "Useless use of return value for ".__PACKAGE__."->call(cb)"; |
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return if $args{cb}; |
160
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#if ( ref $data[0] eq 'HASH' and exists $data[0]{fault} ) { |
161
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# $faultCode = $data[0]{fault}{faultCode}; |
162
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# croak( "Remote Error [$data[0]{fault}{faultCode}]: ".$data[0]{fault}{faultString} ); |
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#} |
164
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0
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0
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return @data == 1 ? $data[0] : @data; |
165
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} |
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167
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168
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=head1 AUTHOR |
169
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170
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Mons Anderson, C<< >> |
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172
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=head1 COPYRIGHT & LICENSE |
173
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174
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Copyright 2009 Mons Anderson, all rights reserved. |
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176
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This program is free software; you can redistribute it and/or modify it |
177
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under the same terms as Perl itself. |
178
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179
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=cut |
180
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181
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1; # End of AnyEvent::RPC |