]> git.evergreen-ils.org Git - OpenSRF.git/blob - src/perlmods/OpenSRF/AppSession.pm
added some sanity checks to make sure we're not sending
[OpenSRF.git] / src / perlmods / OpenSRF / AppSession.pm
1 package OpenSRF::AppSession;
2 use OpenSRF::DOM;
3 #use OpenSRF::DOM::Element::userAuth;
4 use OpenSRF::DomainObject::oilsMessage;
5 use OpenSRF::DomainObject::oilsMethod;
6 use OpenSRF::DomainObject::oilsResponse qw/:status/;
7 use OpenSRF::Transport::PeerHandle;
8 use OpenSRF::Utils::Logger qw(:level);
9 use OpenSRF::Utils::SettingsClient;
10 use OpenSRF::Utils::Config;
11 use OpenSRF::EX;
12 use OpenSRF;
13 use Exporter;
14 use base qw/Exporter OpenSRF/;
15 use Time::HiRes qw( time usleep );
16 use warnings;
17 use strict;
18
19 our @EXPORT_OK = qw/CONNECTING INIT_CONNECTED CONNECTED DISCONNECTED CLIENT SERVER/;
20 our %EXPORT_TAGS = ( state => [ qw/CONNECTING INIT_CONNECTED CONNECTED DISCONNECTED/ ],
21                  endpoint => [ qw/CLIENT SERVER/ ],
22 );
23
24 my $logger = "OpenSRF::Utils::Logger";
25
26 our %_CACHE;
27 our @_CLIENT_CACHE;
28 our @_RESEND_QUEUE;
29
30 sub kill_client_session_cache {
31         for my $session ( @_CLIENT_CACHE ) {
32                 $session->kill_me;
33         }
34 }
35
36 sub CONNECTING { return 3 };
37 sub INIT_CONNECTED { return 4 };
38 sub CONNECTED { return 1 };
39 sub DISCONNECTED { return 2 };
40
41 sub CLIENT { return 2 };
42 sub SERVER { return 1 };
43
44 sub find {
45         return undef unless (defined $_[1]);
46         return $_CACHE{$_[1]} if (exists($_CACHE{$_[1]}));
47 }
48
49 sub find_client {
50         my( $self, $app ) = @_;
51         $logger->debug( "Client Cache contains: " .scalar(@_CLIENT_CACHE), INTERNAL );
52         my ($client) = grep { $_->[0] eq $app and $_->[1] == 1 } @_CLIENT_CACHE;
53         $client->[1] = 0;
54         return $client->[2];
55 }
56
57 sub transport_connected {
58         my $self = shift;
59         if( ! exists $self->{peer_handle} || ! $self->{peer_handle} ) {
60                 return 0;
61         }
62         return $self->{peer_handle}->tcp_connected();
63 }
64
65 # ----------------------------------------------------------------------------
66 # Clears the transport buffers
67 # call this if you are not through with the sesssion, but you want 
68 # to have a clean slate.  You shouldn't have to call this if
69 # you are correctly 'recv'ing all of the data from a request.
70 # however, if you don't want all of the data, this will
71 # slough off any excess
72 #  * * Note: This will delete data for all sessions using this transport
73 # handle.  For example, all client sessions use the same handle.
74 # ----------------------------------------------------------------------------
75 sub buffer_reset {
76
77         my $self = shift;
78         if( ! exists $self->{peer_handle} || ! $self->{peer_handle} ) { 
79                 return 0;
80         }
81         $self->{peer_handle}->buffer_reset();
82 }
83
84
85 sub client_cache {
86         my $self = shift;
87         push @_CLIENT_CACHE, [ $self->app, 1, $self ];
88 }
89
90 # when any incoming data is received, this method is called.
91 sub server_build {
92         my $class = shift;
93         $class = ref($class) || $class;
94
95         my $sess_id = shift;
96         my $remote_id = shift;
97         my $service = shift;
98
99         return undef unless ($sess_id and $remote_id and $service);
100
101         my $config_client = OpenSRF::Utils::SettingsClient->new();
102         
103         if ( my $thingy = $class->find($sess_id) ) {
104                 $thingy->remote_id( $remote_id );
105                 $logger->debug( "AppSession returning existing session $sess_id", DEBUG );
106                 return $thingy;
107         } else {
108                 $logger->debug( "AppSession building new server session $sess_id", DEBUG );
109         }
110
111         if( $service eq "client" ) {
112                 #throw OpenSRF::EX::PANIC ("Attempting to build a client session as a server" .
113                 #       " Session ID [$sess_id], remote_id [$remote_id]");
114                 $logger->debug("Attempting to build a client session as ".
115                                 "a server Session ID [$sess_id], remote_id [$remote_id]", ERROR );
116         }
117
118
119         #my $max_requests = $conf->$service->max_requests;
120         my $max_requests        = $config_client->config_value("apps",$service,"max_requests");
121         $logger->debug( "Max Requests for $service is $max_requests", INTERNAL ) if (defined $max_requests);
122
123         $logger->transport( "AppSession creating new session: $sess_id", INTERNAL );
124
125         my $self = bless { recv_queue  => [],
126                            request_queue  => [],
127                            requests  => 0,
128                            session_data  => {},
129                            callbacks  => {},
130                            endpoint    => SERVER,
131                            state       => CONNECTING, 
132                            session_id  => $sess_id,
133                            remote_id    => $remote_id,
134                                 peer_handle => OpenSRF::Transport::PeerHandle->retrieve($service),
135                                 max_requests => $max_requests,
136                                 session_threadTrace => 0,
137                                 service => $service,
138                          } => $class;
139
140         return $_CACHE{$sess_id} = $self;
141 }
142
143 sub session_data {
144         my $self = shift;
145         my ($name, $datum) = @_;
146
147         $self->{session_data}->{$name} = $datum if (defined $datum);
148         return $self->{session_data}->{$name};
149 }
150
151 sub service { return shift()->{service}; }
152
153 sub continue_request {
154         my $self = shift;
155         $self->{'requests'}++;
156         return 1 if (!$self->{'max_requests'});
157         return $self->{'requests'} <= $self->{'max_requests'} ? 1 : 0;
158 }
159
160 sub last_sent_payload {
161         my( $self, $payload ) = @_;
162         if( $payload ) {
163                 return $self->{'last_sent_payload'} = $payload;
164         }
165         return $self->{'last_sent_payload'};
166 }
167
168 sub last_sent_type {
169         my( $self, $type ) = @_;
170         if( $type ) {
171                 return $self->{'last_sent_type'} = $type;
172         }
173         return $self->{'last_sent_type'};
174 }
175
176 sub get_app_targets {
177         my $app = shift;
178
179 #       my $config_client = OpenSRF::Utils::SettingsClient->new();
180
181         my $conf = OpenSRF::Utils::Config->current;
182         my $router_name = $conf->bootstrap->router_name;
183         my $routers = $conf->bootstrap->domains;
184
185         unless($router_name and $routers) {
186                 throw OpenSRF::EX::Config 
187                         ("Missing router config information 'router_name' and 'routers'");
188         }
189
190         my @targets;
191         for my $router (@$routers) {
192                 push @targets, "$router_name\@$router/$app";
193         }
194
195         return @targets;
196 }
197
198 # When we're a client and we want to connect to a remote service
199 # create( $app, username => $user, secret => $passwd );
200 #    OR
201 # create( $app, sysname => $user, secret => $shared_secret );
202 sub create {
203         my $class = shift;
204         $class = ref($class) || $class;
205
206         my $app = shift;
207
208         if( my $thingy = OpenSRF::AppSession->find_client( $app ) ) {
209                         $logger->debug( "AppSession returning existing client session for $app", DEBUG );
210                         return $thingy;
211         } else {
212                 $logger->debug( "AppSession creating new client session for $app", DEBUG );
213         }
214
215
216         my $sess_id = time . rand( $$ );
217         while ( $class->find($sess_id) ) {
218                 $sess_id = time . rand( $$ );
219         }
220
221         my ($r_id) = get_app_targets($app);
222
223         my $peer_handle = OpenSRF::Transport::PeerHandle->retrieve("client"); 
224         if( ! $peer_handle ) {
225                 $peer_handle = OpenSRF::Transport::PeerHandle->retrieve("system_client");
226         }
227
228         my $self = bless { app_name    => $app,
229                                 #client_auth => $auth,
230                            #recv_queue  => [],
231                            request_queue  => [],
232                            endpoint    => CLIENT,
233                            state       => DISCONNECTED,#since we're init'ing
234                            session_id  => $sess_id,
235                            remote_id   => $r_id,
236                            api_level   => 1,
237                            orig_remote_id   => $r_id,
238                                 peer_handle => $peer_handle,
239                                 session_threadTrace => 0,
240                          } => $class;
241
242         $self->client_cache();
243         $_CACHE{$sess_id} = $self;
244         return $self->find_client( $app );
245 }
246
247 sub api_level {
248         return shift()->{api_level};
249 }
250
251 sub app {
252         return shift()->{app_name};
253 }
254
255 sub reset {
256         my $self = shift;
257         $self->remote_id($$self{orig_remote_id});
258 }
259
260 # 'connect' can be used as a constructor if called as a class method,
261 # or used to connect a session that has disconnectd if called against
262 # an existing session that seems to be disconnected, or was just built
263 # using 'create' above.
264
265 # connect( $app, username => $user, secret => $passwd );
266 #    OR
267 # connect( $app, sysname => $user, secret => $shared_secret );
268
269 # --- Returns undef if the connect attempt times out.
270 # --- Returns the OpenSRF::EX object if one is returned by the server
271 # --- Returns self if connected
272 sub connect {
273         my $self = shift;
274         my $class = ref($self) || $self;
275
276         if ( ref( $self ) and  $self->state && $self->state == CONNECTED  ) {
277                 $logger->transport("ABC AppSession already connected", DEBUG );
278         } else {
279                 $logger->transport("ABC AppSession not connected, connecting..", DEBUG );
280         }
281         return $self if ( ref( $self ) and  $self->state && $self->state == CONNECTED  );
282
283         my $app = shift;
284         my $api_level = shift;
285         $api_level = 1 unless (defined $api_level);
286
287         $self = $class->create($app, @_) if (!ref($self));
288         return undef unless ($self);
289
290         $self->{api_level} = $api_level;
291
292         $self->reset;
293         $self->state(CONNECTING);
294         $self->send('CONNECT', "");
295
296         # if we want to connect to settings, we may not have 
297         # any data for the settings client to work with...
298         # just using a default for now XXX
299
300         my $time_remaining = 5;
301         
302 =head blah
303         my $client = OpenSRF::Utils::SettingsClient->new();
304         my $trans = $client->config_value("client_connection","transport_host");
305
306         if(!ref($trans)) {
307                 $time_remaining = $trans->{connect_timeout};
308         } else {
309                 # XXX for now, just use the first
310                 $time_remaining = $trans->[0]->{connect_timeout};
311         }
312 =cut
313
314         while ( $self->state != CONNECTED  and $time_remaining > 0 ) {
315                 my $starttime = time;
316                 $self->queue_wait($time_remaining);
317                 my $endtime = time;
318                 $time_remaining -= ($endtime - $starttime);
319         }
320
321         return undef unless($self->state == CONNECTED);
322
323         return $self;
324 }
325
326 sub finish {
327         my $self = shift;
328         if( ! $self->session_id ) {
329                 return 0;
330         }
331         #$self->disconnect if ($self->endpoint == CLIENT);
332         for my $ses ( @_CLIENT_CACHE ) {
333                 if ($ses->[2]->session_id eq $self->session_id) {
334                         $ses->[1] = 1;
335                 }
336         }
337 }
338
339 sub unregister_callback {
340         my $self = shift;
341         my $type = shift;
342         my $cb = shift;
343         if (exists $self->{callbacks}{$type}) {
344                 delete $self->{callbacks}{$type}{$cb};
345                 return $cb;
346         }
347         return undef;
348 }
349
350 sub register_callback {
351         my $self = shift;
352         my $type = shift;
353         my $cb = shift;
354         my $cb_key = "$cb";
355         $self->{callbacks}{$type}{$cb_key} = $cb;
356         return $cb_key;
357 }
358
359 sub kill_me {
360         my $self = shift;
361         if( ! $self->session_id ) { return 0; }
362
363         # run each 'death' callback;
364         if (exists $self->{callbacks}{death}) {
365                 for my $sub (values %{$self->{callbacks}{death}}) {
366                         $sub->($self);
367                 }
368         }
369
370         $self->disconnect;
371         $logger->transport( "AppSession killing self: " . $self->session_id(), DEBUG );
372         my @a;
373         for my $ses ( @_CLIENT_CACHE ) {
374                 push @a, $ses 
375                         if ($ses->[2]->session_id ne $self->session_id);
376         }
377         @_CLIENT_CACHE = @a;
378         delete $_CACHE{$self->session_id};
379         delete($$self{$_}) for (keys %$self);
380 }
381
382 sub disconnect {
383         my $self = shift;
384         return unless $self;
385         unless( $self->state == DISCONNECTED ) {
386                 $self->send('DISCONNECT', "") if ($self->endpoint == CLIENT);;
387                 $self->state( DISCONNECTED ); 
388         }
389         # run each 'disconnect' callback;
390         if (exists $self->{callbacks}{disconnect}) {
391                 for my $sub (values %{$self->{callbacks}{disconnect}}) {
392                         $sub->($self);
393                 }
394         }
395
396         $self->reset;
397 }
398
399 sub request {
400         my $self = shift;
401         my $meth = shift;
402         return unless $self;
403
404         my $method;
405         if (!ref $meth) {
406                 $method = new OpenSRF::DomainObject::oilsMethod ( method => $meth );
407         } else {
408                 $method = $meth;
409         }
410         
411         $method->params( @_ );
412
413         $self->send('REQUEST',$method);
414 }
415
416
417 sub send {
418         my $self = shift;
419         my @payload_list = @_; # this is a Domain Object
420
421
422         return unless ($self and $self->{peer_handle});
423
424         $logger->debug( "In send", INTERNAL );
425         
426         my $tT;
427
428         if( @payload_list % 2 ) { $tT = pop @payload_list; }
429
430         if( ! @payload_list ) {
431                 $logger->debug( "payload_list param is incomplete in AppSession::send()", ERROR );
432                 return undef; 
433         }
434
435         my $doc = OpenSRF::DOM->createDocument();
436
437         $logger->debug( "In send2", INTERNAL );
438
439         my $disconnect = 0;
440         my $connecting = 0;
441
442         while( @payload_list ) {
443
444                 my ($msg_type, $payload) = ( shift(@payload_list), shift(@payload_list) ); 
445
446                 if ($msg_type eq 'DISCONNECT' ) {
447                         $disconnect++;
448                         if( $self->state == DISCONNECTED) {
449                                 next;
450                         }
451                 }
452
453                 if( $msg_type eq "CONNECT" ) { $connecting++; }
454
455
456                 if( $payload ) {
457                         $logger->debug( "Payload is ".$payload->toString, INTERNAL );
458                 }
459         
460         
461                 my $msg = OpenSRF::DomainObject::oilsMessage->new();
462                 $logger->debug( "AppSession after creating oilsMessage $msg", INTERNAL );
463                 
464                 $msg->type($msg_type);
465                 $logger->debug( "AppSession after adding type" . $msg->toString(), INTERNAL );
466         
467                 #$msg->userAuth($self->client_auth) if ($self->endpoint == CLIENT && $msg_type eq 'CONNECT');
468         
469                 no warnings;
470                 $msg->threadTrace( $tT || int($self->session_threadTrace) || int($self->last_threadTrace) );
471                 use warnings;
472         
473                 if ($msg->type eq 'REQUEST') {
474                         if ( !defined($tT) || $self->last_threadTrace != $tT ) {
475                                 $msg->update_threadTrace;
476                                 $self->session_threadTrace( $msg->threadTrace );
477                                 $tT = $self->session_threadTrace;
478                                 OpenSRF::AppRequest->new($self, $payload);
479                         }
480                 }
481         
482                 $msg->api_level($self->api_level);
483                 $msg->payload($payload) if $payload;
484         
485                 $doc->documentElement->appendChild( $msg );
486
487         
488                 $logger->debug( "AppSession sending ".$msg->type." to ".$self->remote_id.
489                         " with threadTrace [".$msg->threadTrace."]", INFO );
490
491         }
492         
493         if ($self->endpoint == CLIENT and ! $disconnect) {
494                 $self->queue_wait(0);
495                 unless ($self->state == CONNECTED || ($self->state == CONNECTING && $connecting )) {
496                         my $v = $self->connect();
497                         if( ! $v ) {
498                                 $logger->debug( "Unable to connect to remote service in AppSession::send()", ERROR );
499                                 return undef;
500                         }
501                         if( ref($v) and $v->can("class") and $v->class->isa( "OpenSRF::EX" ) ) {
502                                 return $v;
503                         }
504                 }
505         } 
506
507         $logger->debug( "AppSession sending doc: " . $doc->toString(), INTERNAL );
508
509
510         $self->{peer_handle}->send( 
511                                         to     => $self->remote_id,
512                                    thread => $self->session_id,
513                                    body   => $doc->toString );
514
515         return $self->app_request( $tT );
516 }
517
518 sub app_request {
519         my $self = shift;
520         my $tT = shift;
521         
522         return undef unless (defined $tT);
523         my ($req) = grep { $_->threadTrace == $tT } @{ $self->{request_queue} };
524
525         return $req;
526 }
527
528 sub remove_app_request {
529         my $self = shift;
530         my $req = shift;
531         
532         my @list = grep { $_->threadTrace != $req->threadTrace } @{ $self->{request_queue} };
533
534         $self->{request_queue} = \@list;
535 }
536
537 sub endpoint {
538         return $_[0]->{endpoint};
539 }
540
541
542 sub session_id {
543         my $self = shift;
544         return $self->{session_id};
545 }
546
547 sub push_queue {
548         my $self = shift;
549         my $resp = shift;
550         my $req = $self->app_request($resp->[1]);
551         return $req->push_queue( $resp->[0] ) if ($req);
552         push @{ $self->{recv_queue} }, $resp->[0];
553 }
554
555 sub last_threadTrace {
556         my $self = shift;
557         my $new_last_threadTrace = shift;
558
559         my $old_last_threadTrace = $self->{last_threadTrace};
560         if (defined $new_last_threadTrace) {
561                 $self->{last_threadTrace} = $new_last_threadTrace;
562                 return $new_last_threadTrace unless ($old_last_threadTrace);
563         }
564
565         return $old_last_threadTrace;
566 }
567
568 sub session_threadTrace {
569         my $self = shift;
570         my $new_last_threadTrace = shift;
571
572         my $old_last_threadTrace = $self->{session_threadTrace};
573         if (defined $new_last_threadTrace) {
574                 $self->{session_threadTrace} = $new_last_threadTrace;
575                 return $new_last_threadTrace unless ($old_last_threadTrace);
576         }
577
578         return $old_last_threadTrace;
579 }
580
581 sub last_message_type {
582         my $self = shift;
583         my $new_last_message_type = shift;
584
585         my $old_last_message_type = $self->{last_message_type};
586         if (defined $new_last_message_type) {
587                 $self->{last_message_type} = $new_last_message_type;
588                 return $new_last_message_type unless ($old_last_message_type);
589         }
590
591         return $old_last_message_type;
592 }
593
594 sub last_message_api_level {
595         my $self = shift;
596         my $new_last_message_api_level = shift;
597
598         my $old_last_message_api_level = $self->{last_message_api_level};
599         if (defined $new_last_message_api_level) {
600                 $self->{last_message_api_level} = $new_last_message_api_level;
601                 return $new_last_message_api_level unless ($old_last_message_api_level);
602         }
603
604         return $old_last_message_api_level;
605 }
606
607 sub remote_id {
608         my $self = shift;
609         my $new_remote_id = shift;
610
611         my $old_remote_id = $self->{remote_id};
612         if (defined $new_remote_id) {
613                 $self->{remote_id} = $new_remote_id;
614                 return $new_remote_id unless ($old_remote_id);
615         }
616
617         return $old_remote_id;
618 }
619
620 sub client_auth {
621         return undef;
622         my $self = shift;
623         my $new_ua = shift;
624
625         my $old_ua = $self->{client_auth};
626         if (defined $new_ua) {
627                 $self->{client_auth} = $new_ua;
628                 return $new_ua unless ($old_ua);
629         }
630
631         return $old_ua->cloneNode(1);
632 }
633
634 sub state {
635         my $self = shift;
636         my $new_state = shift;
637
638         my $old_state = $self->{state};
639         if (defined $new_state) {
640                 $self->{state} = $new_state;
641                 return $new_state unless ($old_state);
642         }
643
644         return $old_state;
645 }
646
647 sub DESTROY {
648         my $self = shift;
649         delete $$self{$_} for keys %$self;
650         return undef;
651 }
652
653 sub recv {
654         my $self = shift;
655         my @proto_args = @_;
656         my %args;
657
658         if ( @proto_args ) {
659                 if ( !(@proto_args % 2) ) {
660                         %args = @proto_args;
661                 } elsif (@proto_args == 1) {
662                         %args = ( timeout => @proto_args );
663                 }
664         }
665
666         #$logger->debug( ref($self). " recv_queue before wait: " . $self->_print_queue(), INTERNAL );
667
668         if( exists( $args{timeout} ) ) {
669                 $args{timeout} = int($args{timeout});
670         } else {
671                 $args{timeout} = 10;
672         }
673
674         #$args{timeout} = 0 if ($self->complete);
675
676         $logger->debug( ref($self) ."->recv with timeout " . $args{timeout}, INTERNAL );
677
678         $args{count} ||= 1;
679
680         my $avail = @{ $self->{recv_queue} };
681         my $time_remaining = $args{timeout};
682
683         while ( $avail < $args{count} and $time_remaining > 0 ) {
684                 last if $self->complete;
685                 my $starttime = time;
686                 $self->queue_wait($time_remaining);
687                 my $endtime = time;
688                 $time_remaining -= ($endtime - $starttime);
689                 $avail = @{ $self->{recv_queue} };
690         }
691
692         #$logger->debug( ref($self)." queue after wait: " . $self->_print_queue(), INTERNAL );
693                 
694         my @list;
695         while ( my $msg = shift @{ $self->{recv_queue} } ) {
696                 push @list, $msg;
697                 last if (scalar(@list) >= $args{count});
698         }
699
700 #       $self->{recv_queue} = [@unlist, @{ $self->{recv_queue} }];
701         $logger->debug( "Number of matched responses: " . @list, DEBUG );
702
703         $self->queue_wait(0); # check for statuses
704         
705         return $list[0] unless (wantarray);
706         return @list;
707 }
708
709 sub push_resend {
710         my $self = shift;
711         push @OpenSRF::AppSession::_RESEND_QUEUE, @_;
712 }
713
714 sub flush_resend {
715         my $self = shift;
716         $logger->debug( "Resending..." . @_RESEND_QUEUE, DEBUG );
717         while ( my $req = shift @OpenSRF::AppSession::_RESEND_QUEUE ) {
718                 $req->resend unless $req->complete;
719         }
720 }
721
722
723 sub queue_wait {
724         my $self = shift;
725         if( ! $self->{peer_handle} ) { return 0; }
726         my $timeout = shift || 0;
727         $logger->debug( "Calling queue_wait($timeout)" , DEBUG );
728         $logger->debug( "Timestamp before process($timeout) : " . $logger->format_time(), INTERNAL );
729         my $o = $self->{peer_handle}->process($timeout);
730         $logger->debug( "Timestamp after  process($timeout) : " . $logger->format_time(), INTERNAL );
731         $self->flush_resend;
732         return $o;
733 }
734
735 sub _print_queue {
736         my( $self ) = @_;
737         my $string = "";
738         foreach my $msg ( @{$self->{recv_queue}} ) {
739                 $string = $string . $msg->toString(1) . "\n";
740         }
741         return $string;
742 }
743
744 sub status {
745         my $self = shift;
746         return unless $self;
747         $self->send( 'STATUS', @_ );
748 }
749
750 #-------------------------------------------------------------------------------
751
752 package OpenSRF::AppRequest;
753 use base qw/OpenSRF::AppSession/;
754 use OpenSRF::Utils::Logger qw/:level/;
755 use OpenSRF::DomainObject::oilsResponse qw/:status/;
756
757 sub new {
758         my $class = shift;
759         $class = ref($class) || $class;
760
761         my $session = shift;
762         my $threadTrace = $session->session_threadTrace || $session->last_threadTrace;
763         my $payload = shift;
764         
765         my $self = {    session     => $session,
766                         threadTrace => $threadTrace,
767                         payload     => $payload,
768                         complete    => 0,
769                         recv_queue  => [],
770         };
771
772         bless $self => $class;
773
774         push @{ $self->session->{request_queue} }, $self;
775
776         return $self;
777 }
778
779 sub queue_size {
780         my $size = @{$_[0]->{recv_queue}};
781         return $size;
782 }
783         
784 sub send {
785         my $self = shift;
786         return unless ($self and $self->session);
787         $self->session->send(@_);
788 }
789
790 sub finish {
791         my $self = shift;
792         $self->session->remove_app_request($self);
793         delete($$self{$_}) for (keys %$self);
794 }
795
796 sub session {
797         return shift()->{session};
798 }
799
800 sub complete {
801         my $self = shift;
802         my $complete = shift;
803         return $self->{complete} if ($self->{complete});
804         if (defined $complete) {
805                 $self->{complete} = $complete;
806         } else {
807                 $self->session->queue_wait(0);
808         }
809         return $self->{complete};
810 }
811
812 sub wait_complete {
813         my $self = shift;
814         my $timeout = shift || 1;
815         my $time_remaining = $timeout;
816
817         while ( ! $self->complete  and $time_remaining > 0 ) {
818                 my $starttime = time;
819                 $self->queue_wait($time_remaining);
820                 my $endtime = time;
821                 $time_remaining -= ($endtime - $starttime);
822         }
823
824         return $self->complete;
825 }
826
827 sub threadTrace {
828         return shift()->{threadTrace};
829 }
830
831 sub push_queue {
832         my $self = shift;
833         my $resp = shift;
834         if( !$resp ) { return 0; }
835         push @{ $self->{recv_queue} }, $resp;
836         OpenSRF::Utils::Logger->debug( "AppRequest pushed ".$resp->toString(), INTERNAL );
837 }
838
839 sub queue_wait {
840         my $self = shift;
841         OpenSRF::Utils::Logger->debug( "Calling queue_wait(@_)", DEBUG );
842         return $self->session->queue_wait(@_)
843 }
844
845 sub payload { return shift()->{payload}; }
846
847 sub resend {
848         my $self = shift;
849         return unless ($self and $self->session);
850         OpenSRF::Utils::Logger->debug(
851                 "I'm resending the request for threadTrace ". $self->threadTrace, DEBUG);
852         if($self->payload) {
853                 OpenSRF::Utils::Logger->debug($self->payload->toString,INTERNAL);
854         }
855         return $self->session->send('REQUEST', $self->payload, $self->threadTrace );
856 }
857
858 sub status {
859         my $self = shift;
860         my $msg = shift;
861         return unless ($self and $self->session);
862         $self->session->send( 'STATUS',$msg, $self->threadTrace );
863 }
864
865 sub respond {
866         my $self = shift;
867         my $msg = shift;
868         return unless ($self and $self->session);
869
870         my $response;
871         if (ref($msg) && UNIVERSAL::can($msg, 'getAttribute') && $msg->getAttribute('name') =~ /oilsResult/) {
872                 $response = $msg;
873         } else {
874                 $response = new OpenSRF::DomainObject::oilsResult;
875                 $response->content($msg);
876         }
877
878         $self->session->send('RESULT', $response, $self->threadTrace);
879 }
880
881 sub respond_complete {
882         my $self = shift;
883         my $msg = shift;
884
885         my $response;
886         if (ref($msg) && UNIVERSAL::can($msg, 'getAttribute') && $msg->getAttribute('name') =~ /oilsResult/) {
887                 $response = $msg;
888         } else {
889                 $response = new OpenSRF::DomainObject::oilsResult;
890                 $response->content($msg);
891         }
892
893         my $stat = OpenSRF::DomainObject::oilsConnectStatus->new(
894                 statusCode => STATUS_COMPLETE(),
895                 status => 'Request Complete' );
896
897         return unless ($self and $self->session);
898         $self->session->send( 'RESULT' => $response, 'STATUS' => $stat, $self->threadTrace);
899
900 }
901
902 sub register_death_callback {
903         my $self = shift;
904         my $cb = shift;
905         $self->session->register_callback( death => $cb );
906 }
907
908 package OpenSRF::AppSubrequest;
909
910 sub respond {
911         my $self = shift;
912         my $resp = shift;
913         push @{$$self{resp}}, $resp if (defined $resp);
914 }
915
916 sub new {
917         return bless({resp => []}, 'OpenSRF::AppSubrequest');
918 }
919
920 sub responses { @{$_[0]->{resp}} }
921
922 sub status {}
923
924
925 1;
926