1 package OpenSRF::Application;
2 use vars qw/$_app $log @_METHODS $thunk $server_class/;
5 use OpenSRF::AppSession;
6 use OpenSRF::DomainObject::oilsMethod;
7 use OpenSRF::DomainObject::oilsResponse qw/:status/;
8 use OpenSRF::Utils::Logger qw/:level/;
10 use Time::HiRes qw/time/;
11 use OpenSRF::EX qw/:try/;
13 #use OpenSRF::UnixServer; # to get the server class from UnixServer::App
20 $log = 'OpenSRF::Utils::Logger';
23 our @pending_requests;
27 return 1 unless ref($self);
28 return $self->{package};
33 return 1 unless ref($self);
34 return $self->{api_name};
39 return 1 unless ref($self);
40 return $self->{api_level};
46 $server_class = $class;
54 $thunk = $flag if (defined $flag);
58 sub application_implementation {
66 $log->error( "Error loading application_implementation: $app -> $@", ERROR);
75 my ($self, $session, $app_msg) = @_;
81 $log->debug( "In Application::handler()", DEBUG );
83 my $app = $self->application_implementation;
86 $log->debug( "Application is $app", DEBUG);
88 $log->debug( "Message is ".$app_msg->toString(1), INTERNAL);
91 if ($session->last_message_type eq 'REQUEST') {
92 $log->debug( "We got a REQUEST: ". $app_msg->method, INFO );
94 my $method_name = $app_msg->method;
95 $log->debug( " * Looking up $method_name inside $app", DEBUG);
97 my $method_proto = $session->last_message_api_level;
98 $log->debug( " * Method API Level [$method_proto]", DEBUG);
100 my $coderef = $app->method_lookup( $method_name, $method_proto, 1, 1 );
103 $session->status( OpenSRF::DomainObject::oilsMethodException->new() );
107 $log->debug( " (we got coderef $coderef", DEBUG);
109 unless ($session->continue_request) {
111 OpenSRF::DomainObject::oilsConnectStatus->new(
112 statusCode => STATUS_REDIRECTED(),
113 status => 'Disconnect on max requests' ) );
119 my @args = $app_msg->params;
120 my $appreq = OpenSRF::AppRequest->new( $session );
122 $log->debug( "in_request = $in_request : [" . $appreq->threadTrace."]", DEBUG );
124 $log->debug( "Pushing onto pending requests: " . $appreq->threadTrace, DEBUG );
125 push @pending_requests, [ $appreq, \@args, $coderef ];
132 $log->debug( "Executing coderef for {$method_name -> ".join(', ', @args)."}", INTERNAL );
137 $resp = $coderef->run( $appreq, @args);
138 my $time = sprintf '%.3f', time() - $start;
139 $log->debug( "Method duration for {$method_name -> ".join(', ', @args)."}: ". $time, DEBUG );
140 if( defined( $resp ) ) {
141 #$log->debug( "Calling respond_complete: ". $resp->toString(), INTERNAL );
142 $appreq->respond_complete( $resp );
144 $appreq->status( OpenSRF::DomainObject::oilsConnectStatus->new(
145 statusCode => STATUS_COMPLETE(),
146 status => 'Request Complete' ) );
150 if(UNIVERSAL::isa($e,"Error")) {
151 $e = $e->stringify();
153 my $sess_id = $session->session_id;
155 OpenSRF::DomainObject::oilsMethodException->new(
156 statusCode => STATUS_INTERNALSERVERERROR(),
157 status => " *** Call to [$method_name] failed for session ".
158 "[$sess_id], thread trace [".$appreq->threadTrace."]:\n$e"
165 # ----------------------------------------------
168 # XXX may need this later
169 # $_->[1] = 1 for (@OpenSRF::AppSession::_CLIENT_CACHE);
173 $log->debug( "Pending Requests: " . scalar(@pending_requests), INTERNAL );
175 # cycle through queued requests
176 while( my $aref = shift @pending_requests ) {
181 my $response = $aref->[2]->run( $aref->[0], @{$aref->[1]} );
182 my $time = sprintf '%.3f', time - $start;
183 $log->debug( "Method duration for {[".$aref->[2]->api_name." -> ".join(', ',@{$aref->[1]}).'}: '.$time, DEBUG );
185 $appreq = $aref->[0];
186 if( ref( $response ) ) {
187 #$log->debug( "Calling respond_complete: ". $response->toString(), INTERNAL );
188 $appreq->respond_complete( $response );
190 $appreq->status( OpenSRF::DomainObject::oilsConnectStatus->new(
191 statusCode => STATUS_COMPLETE(),
192 status => 'Request Complete' ) );
194 $log->debug( "Executed: " . $appreq->threadTrace, DEBUG );
197 if(UNIVERSAL::isa($e,"Error")) {
198 $e = $e->stringify();
201 OpenSRF::DomainObject::oilsMethodException->new(
202 statusCode => STATUS_INTERNALSERVERERROR(),
203 status => "Call to [".$aref->[2]->api_name."] faild: $e"
212 my $res = OpenSRF::DomainObject::oilsMethodException->new;
213 $session->send('ERROR', $res);
218 $log->debug( "Pushing ". $app_msg->toString ." onto queue", INTERNAL );
219 $session->push_queue([ $app_msg, $session->last_threadTrace ]);
222 $session->last_message_type('');
223 $session->last_message_api_level('');
230 my $api_name = shift;
231 my $api_level = shift || 1;
232 return exists($_METHODS[$api_level]{$api_name});
235 sub register_method {
237 my $app = ref($self) || $self;
241 throw OpenSRF::DomainObject::oilsMethodException unless ($args{method});
243 $args{api_level} ||= 1;
246 $args{package} ||= $app;
247 $args{server_class} = server_class();
248 $args{api_name} ||= $args{server_class} . '.' . $args{method};
250 unless ($args{object_hint}) {
251 ($args{object_hint} = $args{package}) =~ s/::/_/go;
254 JSON->register_class_hint( name => $args{package}, hint => $args{object_hint}, type => "hash" );
256 $_METHODS[$args{api_level}]{$args{api_name}} = bless \%args => $app;
258 __PACKAGE__->register_method(
260 api_name => $args{api_name}.'.atomic',
261 method => 'make_stream_atomic'
262 ) if ($args{stream});
265 sub retrieve_remote_apis {
267 my $session = OpenSRF::AppSession->create('router');
269 $session->connect or OpenSRF::EX::WARN->throw("Connection to router timed out");
272 $log->debug( "Remote subrequest returned an error:\n". $e );
275 return undef unless ($session->state == $session->CONNECTED);
278 my $req = $session->request( 'opensrf.router.info.class.list' );
279 my $list = $req->recv;
281 if( UNIVERSAL::isa($list,"Error") ) {
285 my $content = $list->content;
289 $session->disconnect;
291 my %u_list = map { ($_ => 1) } @$content;
293 for my $class ( keys %u_list ) {
294 next if($class eq $server_class);
295 populate_remote_method_cache($class, $method);
299 sub populate_remote_method_cache {
303 my $session = OpenSRF::AppSession->create($class);
305 $session->connect or OpenSRF::EX::WARN->throw("Connection to $class timed out");
307 my $call = 'opensrf.system.method.all' unless (defined $meth);
308 $call = 'opensrf.system.method' if (defined $meth);
310 my $req = $session->request( $call, $meth );
312 while (my $method = $req->recv) {
313 next if (UNIVERSAL::isa($method, 'Error'));
315 $method = $method->content;
316 next if ( exists($_METHODS[$$method{api_level}]) &&
317 exists($_METHODS[$$method{api_level}]{$$method{api_name}}) );
318 $method->{remote} = 1;
319 bless($method, __PACKAGE__ );
320 $_METHODS[$$method{api_level}]{$$method{api_name}} = $method;
325 $session->disconnect;
329 $log->debug( "Remote subrequest returned an error:\n". $e );
338 my $no_recurse = shift || 0;
339 my $no_remote = shift || 0;
341 # this instead of " || 1;" above to allow api_level 0
342 $proto = $self->api_level unless (defined $proto);
344 my $class = ref($self) || $self;
346 $log->debug("Lookup of [$method] by [$class] in api_level [$proto]", DEBUG);
347 #$log->debug("Available methods\n".Dumper(\@_METHODS), INTERNAL);
350 if (__PACKAGE__->thunk) {
351 for my $p ( reverse(1 .. $proto) ) {
352 if (exists $_METHODS[$p]{$method}) {
353 $meth = $_METHODS[$p]{$method};
357 if (exists $_METHODS[$proto]{$method}) {
358 $meth = $_METHODS[$proto]{$method};
363 $log->debug("Looks like we found [$method]!", DEBUG);
364 $log->debug("Method object is ".Dumper($meth), INTERNAL);
365 if($no_remote and $meth->{remote}) {
366 $log->debug("OH CRAP We're not supposed to return remote methods", WARN);
370 } elsif (!$no_recurse) {
371 retrieve_remote_apis($method);
372 $meth = $self->method_lookup($method,$proto,1);
385 if ( !UNIVERSAL::isa($req, 'OpenSRF::AppRequest') ) {
386 $log->debug("Creating a SubRequest object", DEBUG);
387 unshift @params, $req;
388 $req = OpenSRF::AppSubrequest->new;
390 $log->debug("This is a top level request", DEBUG);
393 if (!$self->{remote}) {
394 my $code ||= \&{$self->{package} . '::' . $self->{method}};
395 $log->debug("Created coderef [$code] for $$self{package}::$$self{method}",DEBUG);
399 $resp = $code->($self, $req, @params);
404 warn "Caught Error in Application: $e\n";
406 if( UNIVERSAL::isa($e,"Error")) {
407 warn "Exception is:\n " . $e->stringify() . "\n";
410 if( ref($self) eq 'HASH') {
412 $log->error("Sub $$self{package}::$$self{method} DIED!!!\n\t$e\n", ERROR);
417 if(UNIVERSAL::isa($err,"Error")) {
418 throw $err ($err->stringify);
425 $log->debug("Coderef for [$$self{package}::$$self{method}] has been run", DEBUG);
427 if ( ref($req) and UNIVERSAL::isa($req, 'OpenSRF::AppSubrequest') ) {
428 $log->debug("A SubRequest object is responding", DEBUG);
429 $req->respond($resp) if (defined $resp);
430 $log->debug("... Responding with : " . join(" ",$req->responses), DEBUG);
431 return $req->responses;
433 $log->debug("A top level Request object is responding $resp", DEBUG) if (defined $resp);
437 my $session = OpenSRF::AppSession->create($self->{server_class});
439 $session->connect or OpenSRF::EX::WARN->throw("Connection to [$$self{server_class}] timed out");
440 my $remote_req = $session->request( $self->{api_name}, @params );
441 while (my $remote_resp = $remote_req->recv) {
442 OpenSRF::Utils::Logger->debug("Remote Subrequest Received " . $remote_resp, INTERNAL );
443 if( UNIVERSAL::isa($remote_resp,"Error") ) {
446 $req->respond( $remote_resp->content );
448 $remote_req->finish();
449 $session->disconnect();
454 $log->debug( "Remote subrequest returned an error:\n". $e );
458 $log->debug( "Remote Subrequest Responses " . join(" ", $req->responses), INTERNAL );
460 return $req->responses;
462 # huh? how'd we get here...
471 $method = undef if ($self->api_name =~ /all$/o);
473 for my $api_level ( reverse(1 .. $#_METHODS) ) {
474 for my $api_name ( sort keys %{$_METHODS[$api_level]} ) {
475 if (!$_METHODS[$api_level]{$api_name}{remote}) {
476 if (defined($method)) {
477 if ($api_name eq $method) {
478 $client->respond( $_METHODS[$api_level]{$api_name} );
481 $log->debug( "Returning definition for method [$api_name]", INTERNAL );
482 $client->respond( $_METHODS[$api_level]{$api_name} );
483 $log->debug( "responed with definition for method [$api_name]", INTERNAL );
491 __PACKAGE__->register_method(
493 method => 'introspect',
494 api_name => 'opensrf.system.method.all'
497 __PACKAGE__->register_method(
499 method => 'introspect',
501 api_name => 'opensrf.system.method'
504 sub make_stream_atomic {
509 (my $m_name = $self->api_name) =~ s/\.atomic$//o;
510 my @results = $self->method_lookup($m_name)->run(@args);