src/perlmods/OpenSRF/Application.pm

   1 package OpenSRF::Application;
   2 use vars qw/$_app $log @_METHODS $thunk $server_class/;
   3
   4 use base qw/OpenSRF/;
   5 use OpenSRF::AppSession;
   6 use OpenSRF::DomainObject::oilsMethod;
   7 use OpenSRF::DomainObject::oilsResponse qw/:status/;
   8 use OpenSRF::Utils::Logger qw/:level/;
   9 use Data::Dumper;
  10 use Time::HiRes qw/time/;
  11 use OpenSRF::EX qw/:try/;
  12 use Carp;
  13 #use OpenSRF::UnixServer;  # to get the server class from UnixServer::App
  14
  15 sub DESTROY{};
  16
  17 use strict;
  18 use warnings;
  19
  20 $log = 'OpenSRF::Utils::Logger';
  21
  22 our $in_request = 0;
  23 our @pending_requests;
  24
  25 sub package {
  26         my $self = shift;
  27         return 1 unless ref($self);
  28         return $self->{package};
  29 }
  30
  31 sub signature {
  32         my $self = shift;
  33         return 0 unless ref($self);
  34         return $self->{signature};
  35 }
  36
  37 sub argc {
  38         my $self = shift;
  39         return 0 unless ref($self);
  40         return $self->{argc};
  41 }
  42
  43 sub api_name {
  44         my $self = shift;
  45         return 1 unless ref($self);
  46         return $self->{api_name};
  47 }
  48
  49 sub api_level {
  50         my $self = shift;
  51         return 1 unless ref($self);
  52         return $self->{api_level};
  53 }
  54
  55 sub server_class {
  56         my $class = shift;
  57         if($class) {
  58                 $server_class = $class;
  59         }
  60         return $server_class;
  61 }
  62
  63 sub thunk {
  64         my $self = shift;
  65         my $flag = shift;
  66         $thunk = $flag if (defined $flag);
  67         return $thunk;
  68 }
  69
  70 sub application_implementation {
  71         my $self = shift;
  72         my $app = shift;
  73
  74         if (defined $app) {
  75                 $_app = $app;
  76                 $_app->use;
  77                 if( $@ ) {
  78                         $log->error( "Error loading application_implementation: $app -> $@", ERROR);
  79                 }
  80
  81         }
  82
  83         return $_app;
  84 }
  85
  86 sub handler {
  87         my ($self, $session, $app_msg) = @_;
  88
  89         if( ! $app_msg ) {
  90                 return 1;  # error?
  91         }
  92
  93         my $app = $self->application_implementation;
  94
  95         if ($session->last_message_type eq 'REQUEST') {
  96
  97                 my $method_name = $app_msg->method;
  98                 my $method_proto = $session->last_message_api_level;
  99
 100                 my $coderef = $app->method_lookup( $method_name, $method_proto, 1, 1 );
 101
 102                 unless ($coderef) {
 103                         $session->status( OpenSRF::DomainObject::oilsMethodException->new(
 104                                                 statusCode => STATUS_NOTFOUND(),
 105                                                 status => "Method [$method_name] not found for $app"));
 106                         return 1;
 107                 }
 108
 109                 unless ($session->continue_request) {
 110                         $session->status(
 111                                 OpenSRF::DomainObject::oilsConnectStatus->new(
 112                                                 statusCode => STATUS_REDIRECTED(),
 113                                                 status => 'Disconnect on max requests' ) );
 114                         $session->kill_me;
 115                         return 1;
 116                 }
 117
 118                 if (ref $coderef) {
 119                         my @args = $app_msg->params;
 120                         my $appreq = OpenSRF::AppRequest->new( $session );
 121
 122                         $log->debug( "in_request = $in_request : [" . $appreq->threadTrace."]", INTERNAL );
 123                         if( $in_request ) {
 124                                 $log->debug( "Pushing onto pending requests: " . $appreq->threadTrace, DEBUG );
 125                                 push @pending_requests, [ $appreq, \@args, $coderef ];
 126                                 return 1;
 127                         }
 128
 129
 130                         $in_request++;
 131
 132                         $log->debug( "Executing coderef for {$method_name}", INTERNAL );
 133
 134                         my $resp;
 135                         try {
 136                                 # un-if(0) this block to enable param checking based on signature and argc
 137                                 if (0) {
 138                                         if (@args < $coderef->argc) {
 139                                                 die     "Not enough params passed to ".
 140                                                         $coderef->api_name." : requires ". $coderef->argc
 141                                         }
 142                                         if (@args) {
 143                                                 my $sig = $coderef->signature;
 144                                                 if ($sig && exists $sig->{params}) {
 145                                                         for my $p (0 .. scalar(@{ $sig->{params} }) - 1 ) {
 146                                                                 my $s = $sig->{params}->[$p];
 147                                                                 my $a = $args[$p];
 148                                                                 if ($s->{class} && JSON->lookup_hint(ref $a) ne $s->{class}) {
 149                                                                         die "Incorrect param class at position $p : should be a '$$s{class}'";
 150                                                                 } elsif ($s->{type}) {
 151                                                                         if (lc($s->{type}) eq 'object' && $a !~ /HASH/o) {
 152                                                                                 die "Incorrect param type at position $p : should be an 'object'";
 153                                                                         } elsif (lc($s->{type}) eq 'array' && $a !~ /ARRAY/o) {
 154                                                                                 die "Incorrect param type at position $p : should be an 'array'";
 155                                                                         } elsif (lc($s->{type}) eq 'number' && (ref($a) || $a !~ /^-?\d+(?:\.\d+)?$/o)) {
 156                                                                                 die "Incorrect param type at position $p : should be a 'number'";
 157                                                                         } elsif (lc($s->{type}) eq 'string' && ref($a)) {
 158                                                                                 die "Incorrect param type at position $p : should be a 'string'";
 159                                                                         }
 160                                                                 }
 161                                                         }
 162                                                 }
 163                                         }
 164                                 }
 165
 166                                 my $start = time();
 167                                 warn "About to run...\n";
 168                                 $resp = $coderef->run( $appreq, @args);
 169                                 warn "Done running...\n";
 170                                 my $time = sprintf '%.3f', time() - $start;
 171
 172                                 $log->debug( "Method duration for [$method_name]:  ". $time );
 173                                 if( defined( $resp ) ) {
 174                                         $appreq->respond_complete( $resp );
 175                                 } else {
 176                                         $appreq->status( OpenSRF::DomainObject::oilsConnectStatus->new(
 177                                                                 statusCode => STATUS_COMPLETE(),
 178                                                                 status => 'Request Complete' ) );
 179                                 }
 180                         } catch Error with {
 181                                 my $e = shift;
 182                                 warn "Caught error from 'run' method: $e\n";
 183
 184                                 if(UNIVERSAL::isa($e,"Error")) {
 185                                         $e = $e->stringify();
 186                                 }
 187                                 my $sess_id = $session->session_id;
 188                                 $session->status(
 189                                         OpenSRF::DomainObject::oilsMethodException->new(
 190                                                         statusCode      => STATUS_INTERNALSERVERERROR(),
 191                                                         status          => " *** Call to [$method_name] failed for session ".
 192                                                                            "[$sess_id], thread trace ".
 193                                                                            "[".$appreq->threadTrace."]:\n$e\n"
 194                                         )
 195                                 );
 196                         };
 197
 198
 199
 200                         # ----------------------------------------------
 201
 202
 203                         # XXX may need this later
 204                         # $_->[1] = 1 for (@OpenSRF::AppSession::_CLIENT_CACHE);
 205
 206                         $in_request--;
 207
 208                         $log->debug( "Pending Requests: " . scalar(@pending_requests), INTERNAL );
 209
 210                         # cycle through queued requests
 211                         while( my $aref = shift @pending_requests ) {
 212                                 $in_request++;
 213                                 my $resp;
 214                                 try {
 215                                         # un-if(0) this block to enable param checking based on signature and argc
 216                                         if (0) {
 217                                                 if (@args < $aref->[2]->argc) {
 218                                                         die     "Not enough params passed to ".
 219                                                                 $aref->[2]->api_name." : requires ". $aref->[2]->argc
 220                                                 }
 221                                                 if (@args) {
 222                                                         my $sig = $aref->[2]->signature;
 223                                                         if ($sig && exists $sig->{params}) {
 224                                                                 for my $p (0 .. scalar(@{ $sig->{params} }) - 1 ) {
 225                                                                         my $s = $sig->{params}->[$p];
 226                                                                         my $a = $args[$p];
 227                                                                         if ($s->{class} && JSON->lookup_hint(ref $a) ne $s->{class}) {
 228                                                                                 die "Incorrect param class at position $p : should be a '$$s{class}'";
 229                                                                         } elsif ($s->{type}) {
 230                                                                                 if (lc($s->{type}) eq 'object' && $a !~ /HASH/o) {
 231                                                                                         die "Incorrect param type at position $p : should be an 'object'";
 232                                                                                 } elsif (lc($s->{type}) eq 'array' && $a !~ /ARRAY/o) {
 233                                                                                         die "Incorrect param type at position $p : should be an 'array'";
 234                                                                                 } elsif (lc($s->{type}) eq 'number' && (ref($a) || $a !~ /^-?\d+(?:\.\d+)?$/o)) {
 235                                                                                         die "Incorrect param type at position $p : should be a 'number'";
 236                                                                                 } elsif (lc($s->{type}) eq 'string' && ref($a)) {
 237                                                                                         die "Incorrect param type at position $p : should be a 'string'";
 238                                                                                 }
 239                                                                         }
 240                                                                 }
 241                                                         }
 242                                                 }
 243                                         }
 244
 245                                         my $start = time;
 246                                         my $response = $aref->[2]->run( $aref->[0], @{$aref->[1]} );
 247                                         my $time = sprintf '%.3f', time - $start;
 248                                         $log->debug( "Method duration for [".$aref->[2]->api_name." -> ".join(', ',@{$aref->[1]}).']:  '.$time, DEBUG );
 249
 250                                         $appreq = $aref->[0];
 251                                         if( ref( $response ) ) {
 252                                                 $appreq->respond_complete( $response );
 253                                         } else {
 254                                                 $appreq->status( OpenSRF::DomainObject::oilsConnectStatus->new(
 255                                                                         statusCode => STATUS_COMPLETE(),
 256                                                                         status => 'Request Complete' ) );
 257                                         }
 258                                         $log->debug( "Executed: " . $appreq->threadTrace, INTERNAL );
 259                                 } catch Error with {
 260                                         my $e = shift;
 261                                         if(UNIVERSAL::isa($e,"Error")) {
 262                                                 $e = $e->stringify();
 263                                         }
 264                                         $session->status(
 265                                                 OpenSRF::DomainObject::oilsMethodException->new(
 266                                                                 statusCode => STATUS_INTERNALSERVERERROR(),
 267                                                                 status => "Call to [".$aref->[2]->api_name."] faild:  $e"
 268                                                 )
 269                                         );
 270                                 };
 271                                 $in_request--;
 272                         }
 273
 274                         return 1;
 275                 }
 276
 277                 $log->info("Received non-REQUEST message in Application handler");
 278
 279                 my $res = OpenSRF::DomainObject::oilsMethodException->new(
 280                                 status => "Received non-REQUEST message in Application handler");
 281                 $session->send('ERROR', $res);
 282                 $session->kill_me;
 283                 return 1;
 284
 285         } else {
 286                 $session->push_queue([ $app_msg, $session->last_threadTrace ]);
 287         }
 288
 289         $session->last_message_type('');
 290         $session->last_message_api_level('');
 291
 292         return 1;
 293 }
 294
 295 sub is_registered {
 296         my $self = shift;
 297         my $api_name = shift;
 298         my $api_level = shift || 1;
 299         return exists($_METHODS[$api_level]{$api_name});
 300 }
 301
 302
 303 sub normalize_whitespace {
 304         my $txt = shift;
 305
 306         $txt =~ s/^\s+//gso;
 307         $txt =~ s/\s+$//gso;
 308         $txt =~ s/\s+/ /gso;
 309         $txt =~ s/\n//gso;
 310         $txt =~ s/\. /\.  /gso;
 311
 312         return $txt;
 313 }
 314
 315 sub parse_string_signature {
 316         my $string = shift;
 317         return [] unless $string;
 318         my @chunks = split(/\@/so, $string);
 319
 320         my @params;
 321         my $ret;
 322         my $desc = '';
 323         for (@chunks) {
 324                 if (/^return (.+)$/so) {
 325                         $ret = [normalize_whitespace($1)];
 326                 } elsif (/^param (\w+) \b(.+)$/so) {
 327                         push @params, [ $1, normalize_whitespace($2) ];
 328                 } else {
 329                         $desc .= '@' if $desc;
 330                         $desc .= $_;
 331                 }
 332         }
 333
 334         return [normalize_whitespace($desc),\@params, $ret];
 335 }
 336
 337 sub parse_array_signature {
 338         my $array = shift;
 339         my ($d,$p,$r) = @$array;
 340         return {} unless ($d or $p or $r);
 341
 342         return {
 343                 desc    => $d,
 344                 params  => [
 345                         map {
 346                                 { name  => $$_[0],
 347                                   desc  => $$_[1],
 348                                   type  => $$_[2],
 349                                   class => $$_[3],
 350                                 }
 351                         } @$p
 352                 ],
 353                 'return'=>
 354                         { desc  => $$r[0],
 355                           type  => $$r[1],
 356                           class => $$r[2],
 357                         }
 358         };
 359 }
 360
 361 sub register_method {
 362         my $self = shift;
 363         my $app = ref($self) || $self;
 364         my %args = @_;
 365
 366
 367         throw OpenSRF::DomainObject::oilsMethodException unless ($args{method});
 368
 369         $args{api_level} = 1 unless(defined($args{api_level}));
 370         $args{stream} ||= 0;
 371         $args{remote} ||= 0;
 372         $args{argc} ||= 0;
 373         $args{package} ||= $app;
 374         $args{server_class} = server_class();
 375         $args{api_name} ||= $args{server_class} . '.' . $args{method};
 376
 377         # un-if(0) this block to enable signature parsing
 378         if (!$args{signature}) {
 379                 if ($args{notes} && !ref($args{notes})) {
 380                         $args{signature} =
 381                                 parse_array_signature( parse_string_signature( $args{notes} ) );
 382                 }
 383         } elsif( !ref($args{signature}) ) {
 384                 $args{signature} =
 385                         parse_array_signature( parse_string_signature( $args{signature} ) );
 386         } elsif( ref($args{signature}) eq 'ARRAY') {
 387                 $args{signature} =
 388                         parse_array_signature( $args{signature} );
 389         }
 390
 391         unless ($args{object_hint}) {
 392                 ($args{object_hint} = $args{package}) =~ s/::/_/go;
 393         }
 394
 395         JSON->register_class_hint( name => $args{package}, hint => $args{object_hint}, type => "hash" );
 396
 397         $_METHODS[$args{api_level}]{$args{api_name}} = bless \%args => $app;
 398
 399         __PACKAGE__->register_method(
 400                 stream => 0,
 401                 argc => $args{argc},
 402                 api_name => $args{api_name}.'.atomic',
 403                 method => 'make_stream_atomic',
 404                 notes => "This is a system generated method.  Please see the definition for $args{api_name}",
 405         ) if ($args{stream});
 406 }
 407
 408 sub retrieve_remote_apis {
 409         my $method = shift;
 410         my $session = OpenSRF::AppSession->create('router');
 411         try {
 412                 $session->connect or OpenSRF::EX::WARN->throw("Connection to router timed out");
 413         } catch Error with {
 414                 my $e = shift;
 415                 $log->debug( "Remote subrequest returned an error:\n". $e );
 416                 return undef;
 417         } finally {
 418                 return undef unless ($session->state == $session->CONNECTED);
 419         };
 420
 421         my $req = $session->request( 'opensrf.router.info.class.list' );
 422         my $list = $req->recv;
 423
 424         if( UNIVERSAL::isa($list,"Error") ) {
 425                 throw $list;
 426         }
 427
 428         my $content = $list->content;
 429
 430         $req->finish;
 431         $session->finish;
 432         $session->disconnect;
 433
 434         my %u_list = map { ($_ => 1) } @$content;
 435
 436         for my $class ( keys %u_list ) {
 437                 next if($class eq $server_class);
 438                 populate_remote_method_cache($class, $method);
 439         }
 440 }
 441
 442 sub populate_remote_method_cache {
 443         my $class = shift;
 444         my $meth = shift;
 445
 446         my $session = OpenSRF::AppSession->create($class);
 447         try {
 448                 $session->connect or OpenSRF::EX::WARN->throw("Connection to $class timed out");
 449
 450                 my $call = 'opensrf.system.method.all' unless (defined $meth);
 451                 $call = 'opensrf.system.method' if (defined $meth);
 452
 453                 my $req = $session->request( $call, $meth );
 454
 455                 while (my $method = $req->recv) {
 456                         next if (UNIVERSAL::isa($method, 'Error'));
 457
 458                         $method = $method->content;
 459                         next if ( exists($_METHODS[$$method{api_level}]) &&
 460                                 exists($_METHODS[$$method{api_level}]{$$method{api_name}}) );
 461                         $method->{remote} = 1;
 462                         bless($method, __PACKAGE__ );
 463                         $_METHODS[$$method{api_level}]{$$method{api_name}} = $method;
 464                 }
 465
 466                 $req->finish;
 467                 $session->finish;
 468                 $session->disconnect;
 469
 470         } catch Error with {
 471                 my $e = shift;
 472                 $log->debug( "Remote subrequest returned an error:\n". $e );
 473                 return undef;
 474         };
 475 }
 476
 477 sub method_lookup {
 478         my $self = shift;
 479         my $method = shift;
 480         my $proto = shift;
 481         my $no_recurse = shift || 0;
 482         my $no_remote = shift || 0;
 483
 484         # this instead of " || 1;" above to allow api_level 0
 485         $proto = $self->api_level unless (defined $proto);
 486
 487         my $class = ref($self) || $self;
 488
 489         $log->debug("Lookup of [$method] by [$class] in api_level [$proto]", DEBUG);
 490         $log->debug("Available methods\n\t".join("\n\t", keys %{ $_METHODS[$proto] }), INTERNAL);
 491
 492         my $meth;
 493         if (__PACKAGE__->thunk) {
 494                 for my $p ( reverse(1 .. $proto) ) {
 495                         if (exists $_METHODS[$p]{$method}) {
 496                                 $meth = $_METHODS[$p]{$method};
 497                         }
 498                 }
 499         } else {
 500                 if (exists $_METHODS[$proto]{$method}) {
 501                         $meth = $_METHODS[$proto]{$method};
 502                 }
 503         }
 504
 505         if (defined $meth) {
 506                 if($no_remote and $meth->{remote}) {
 507                         $log->debug("OH CRAP We're not supposed to return remote methods", WARN);
 508                         return undef;
 509                 }
 510
 511         } elsif (!$no_recurse) {
 512                 $log->debug("We didn't find [$method], asking everyone else.", DEBUG);
 513                 retrieve_remote_apis($method);
 514                 $meth = $self->method_lookup($method,$proto,1);
 515         }
 516
 517         return $meth;
 518 }
 519
 520 sub run {
 521         my $self = shift;
 522         my $req = shift;
 523
 524         my $resp;
 525         my @params = @_;
 526
 527         if ( !UNIVERSAL::isa($req, 'OpenSRF::AppRequest') ) {
 528                 $log->debug("Creating a SubRequest object", DEBUG);
 529                 unshift @params, $req;
 530                 $req = OpenSRF::AppSubrequest->new;
 531         } else {
 532                 $log->debug("This is a top level request", DEBUG);
 533         }
 534
 535         if (!$self->{remote}) {
 536                 my $code = \&{$self->{package} . '::' . $self->{method}};
 537                 my $err = undef;
 538
 539                 try {
 540                         $resp = $code->($self, $req, @params);
 541
 542                 } catch Error with {
 543                         $err = shift;
 544
 545                         if( ref($self) eq 'HASH') {
 546                                 $log->error("Sub $$self{package}::$$self{method} DIED!!!\n\t$err\n", ERROR);
 547                         }
 548                 };
 549
 550                 if($err) {
 551                         if(UNIVERSAL::isa($err,"Error")) {
 552                                 throw $err;
 553                         } else {
 554                                 die $err->stringify;
 555                         }
 556                 }
 557
 558
 559                 $log->debug("Coderef for [$$self{package}::$$self{method}] has been run", DEBUG);
 560
 561                 if ( ref($req) and UNIVERSAL::isa($req, 'OpenSRF::AppSubrequest') ) {
 562                         $req->respond($resp) if (defined $resp);
 563                         $log->debug("SubRequest object is responding with : " . join(" ",$req->responses), DEBUG);
 564                         return $req->responses;
 565                 } else {
 566                         $log->debug("A top level Request object is responding $resp", DEBUG) if (defined $resp);
 567                         return $resp;
 568                 }
 569         } else {
 570                 my $session = OpenSRF::AppSession->create($self->{server_class});
 571                 try {
 572                         #$session->connect or OpenSRF::EX::WARN->throw("Connection to [$$self{server_class}] timed out");
 573                         my $remote_req = $session->request( $self->{api_name}, @params );
 574                         while (my $remote_resp = $remote_req->recv) {
 575                                 OpenSRF::Utils::Logger->debug("Remote Subrequest Received " . $remote_resp, INTERNAL );
 576                                 if( UNIVERSAL::isa($remote_resp,"Error") ) {
 577                                         throw $remote_resp;
 578                                 }
 579                                 $req->respond( $remote_resp->content );
 580                         }
 581                         $remote_req->finish();
 582
 583                 } catch Error with {
 584                         my $e = shift;
 585                         $log->debug( "Remote subrequest returned an error:\n". $e );
 586                         return undef;
 587                 };
 588
 589                 if ($session) {
 590                         $session->disconnect();
 591                         $session->finish();
 592                 }
 593
 594                 $log->debug( "Remote Subrequest Responses " . join(" ", $req->responses), INTERNAL );
 595
 596                 return $req->responses;
 597         }
 598         # huh? how'd we get here...
 599         return undef;
 600 }
 601
 602 sub introspect {
 603         my $self = shift;
 604         my $client = shift;
 605         my $method = shift;
 606         my $limit = shift;
 607         my $offset = shift;
 608
 609         if ($self->api_name =~ /all$/o) {
 610                 $offset = $limit;
 611                 $limit = $method;
 612                 $method = undef;
 613         }
 614
 615         my ($seen,$returned) = (0,0);
 616         for my $api_level ( reverse(1 .. $#_METHODS) ) {
 617                 for my $api_name ( sort keys %{$_METHODS[$api_level]} ) {
 618                         if (!$offset || $offset <= $seen) {
 619                                 if (!$_METHODS[$api_level]{$api_name}{remote}) {
 620                                         if (defined($method)) {
 621                                                 if ($api_name =~ $method) {
 622                                                         if (!$limit || $returned < $limit) {
 623                                                                 $client->respond( $_METHODS[$api_level]{$api_name} );
 624                                                                 $returned++;
 625                                                         }
 626                                                 }
 627                                         } else {
 628                                                 if (!$limit || $returned < $limit) {
 629                                                         $client->respond( $_METHODS[$api_level]{$api_name} );
 630                                                         $returned++;
 631                                                 }
 632                                         }
 633                                 }
 634                         }
 635                         $seen++;
 636                 }
 637         }
 638
 639         return undef;
 640 }
 641 __PACKAGE__->register_method(
 642         stream => 1,
 643         method => 'introspect',
 644         api_name => 'opensrf.system.method.all',
 645         argc => 0,
 646         signature => {
 647                 desc => q/This method is used to introspect an entire OpenSRF Application/,
 648                 return => {
 649                         desc => q/A stream of objects describing the methods available via this OpenSRF Application/,
 650                         type => 'object'
 651                 }
 652         },
 653 );
 654 __PACKAGE__->register_method(
 655         stream => 1,
 656         method => 'introspect',
 657         argc => 1,
 658         api_name => 'opensrf.system.method',
 659         argc => 1,
 660         signature => {
 661                 desc => q/Use this method to get the definition of a single OpenSRF Method/,
 662                 params => [
 663                         { desc => q/The method to introspect/,
 664                           type => 'string' },
 665                 ],
 666                 return => { desc => q/An object describing the method requested, or an error if it can't be found/,
 667                             type => 'object' }
 668         },
 669 );
 670
 671 sub echo_method {
 672         my $self = shift;
 673         my $client = shift;
 674         my @args = @_;
 675
 676         $client->respond( $_ ) for (@args);
 677         return undef;
 678 }
 679 __PACKAGE__->register_method(
 680         stream => 1,
 681         method => 'echo_method',
 682         argc => 1,
 683         api_name => 'opensrf.system.echo',
 684         signature => {
 685                 desc => q/A test method that will echo back it's arguments in a streaming response/,
 686                 params => [
 687                         { desc => q/One or more arguments to echo back/ }
 688                 ],
 689                 return => { desc => q/A stream of the arguments passed/ }
 690         },
 691 );
 692
 693 sub time_method {
 694         my( $self, $conn ) = @_;
 695         return CORE::time;
 696 }
 697 __PACKAGE__->register_method(
 698         method => 'time_method',
 699         argc => 0,
 700         api_name => 'opensrf.system.time',
 701         signature => {
 702                 desc => q/Returns the current system time as epoch seconds/,
 703                 return => { desc => q/epoch seconds/ }
 704         }
 705 );
 706
 707 sub make_stream_atomic {
 708         my $self = shift;
 709         my $req = shift;
 710         my @args = @_;
 711
 712         (my $m_name = $self->api_name) =~ s/\.atomic$//o;
 713         my @results = $self->method_lookup($m_name)->run(@args);
 714
 715         return \@results;
 716 }
 717
 718
 719 1;
 720
 721