/[cvs]/nfo/php/libs/org.netfrag.glib/DataSource/Generic.php
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revision 1.7 by joko, Tue Mar 11 01:43:00 2003 UTC revision 1.20 by jonen, Sat Apr 19 16:07:15 2003 UTC
# Line 9  Line 9 
9   */   */
10    
11  /**  /**
12   * <b>Cvs-Log:</b>   * Cvs-Log:
13   *   *
  * <pre>  
14   * $Id$   * $Id$
15   *   *
16   * $Log$   * $Log$
17     * Revision 1.20  2003/04/19 16:07:15  jonen
18     * + added '_query[list_meta]' at 'queryData' needed for meta query args
19     *    (e.g. at UserManagment)
20     *
21     * Revision 1.19  2003/04/18 15:40:51  joko
22     * NEW: tree data handling
23     *   introduced new adapter: DataSource::Adapter::Free
24     *   enhanced datasource_handler_buildoptions: now handles a) case 'tree'  b) _query[filter]
25     *
26     * Revision 1.18  2003/04/11 00:55:49  joko
27     * updated 'datasource_handler_buildoptions': action dispatcher now aware of 'delete'
28     *
29     * Revision 1.17  2003/04/09 02:07:33  joko
30     * CHANGE: renamed key 'classname' through 'nodename'
31     *
32     * Revision 1.16  2003/04/08 17:55:20  joko
33     * CHANGE: renamed property 'datasource' to 'transport'
34     * NEW: new case 'method' in 'function datasource_handler_buildoptions'
35     * minor fixes: updated logging/debugging messages
36     *
37     * Revision 1.15  2003/04/06 04:46:33  joko
38     * renamed linking function
39     * mozilla fixes
40     *
41     * Revision 1.14  2003/04/04 21:19:21  joko
42     * modified exception handling (enhanced, purged redundant code)
43     *
44     * Revision 1.13  2003/04/04 02:37:14  jonen
45     * _query[action] == write
46     *
47     * Revision 1.12  2003/03/29 08:00:48  joko
48     * modified ErrorBoxing
49     *
50     * Revision 1.11  2003/03/28 06:45:26  joko
51     * VERBOSE mode
52     *
53     * Revision 1.10  2003/03/28 03:01:02  joko
54     * more fancy debugging-output
55     *
56     * Revision 1.9  2003/03/27 16:24:26  jonen
57     * + mugled namespace
58     * + added enhanced 'queryData'
59     *
60     * Revision 1.8  2003/03/20 07:22:14  jonen
61     * + modified case 'object' to 'objects'
62     *   (cause its loads all *objects* of a given classname)
63     *
64   * Revision 1.7  2003/03/11 01:43:00  joko   * Revision 1.7  2003/03/11 01:43:00  joko
65   * + fixed metadata for phpDocumentor   * + fixed metadata for phpDocumentor
66   *   *
# Line 59  Line 105 
105   *   *
106   * Revision 1.1  2003/03/01 03:10:40  joko   * Revision 1.1  2003/03/01 03:10:40  joko
107   * + initial commit   * + initial commit
  * </pre>  
108   *   *
109   */   */
110    
# Line 256  class DataSource_Generic extends DesignP Line 301  class DataSource_Generic extends DesignP
301      * other presets.      * other presets.
302      *      *
303      * See '_buildLocator' which acts as a dispatcher      * See '_buildLocator' which acts as a dispatcher
304      * depending on $_options[datasource].      * depending on $_options[transport].
305      * (main dispatching level)      * (main dispatching level)
306      *      *
307      * The structure of a full blown locator looks like this:      * The structure of a full blown locator looks like this:
# Line 345  class DataSource_Generic extends DesignP Line 390  class DataSource_Generic extends DesignP
390          function DataSource_Generic( &$locator, $query ) {          function DataSource_Generic( &$locator, $query ) {
391    
392                  // copy parameter from query to locator                  // copy parameter from query to locator
393                  //$this->_locator->merge_to($this->_locator, array( datasource_type => $query[datasource] ), '_');                  //$this->_locator->merge_to($this->_locator, array( datasource_type => $query[transport] ), '_');
394                  //$this->_locator->_datasource_type = $query[datasource];                  //$this->_locator->_datasource_type = $query[transport];
395                  //$locator[_datasource_type] = $query[datasource];                  //$locator[_datasource_type] = $query[transport];
396                                    
397        /**        /**
398         * <!-- Autodia -->         * <!-- Autodia -->
# Line 357  class DataSource_Generic extends DesignP Line 402  class DataSource_Generic extends DesignP
402         */         */
403    
404                  // build master locator                  // build master locator
405                  $this->_locator = php::mkComponent('DataSource::Locator', $locator, array( datasource_type => $query[datasource] ) );                  $this->_locator = php::mkComponent('DataSource::Locator', $locator, array( datasource_type => $query[transport] ) );
406                  //exit;                  //exit;
407                  //$this->_locator = php::mkComponent('DataSource::Locator');                  //$this->_locator = php::mkComponent('DataSource::Locator');
408                                    
# Line 394  class DataSource_Generic extends DesignP Line 439  class DataSource_Generic extends DesignP
439      // pre-flight: check locator metadata      // pre-flight: check locator metadata
440        //$locator->build();        //$locator->build();
441        if (!$this->_locator->check()) {        if (!$this->_locator->check()) {
442          user_error("locator-check failed.");          user_error("DataSource::Generic: locator-check failed." . "<br/>" . "Locator was: " . Dumper($this->_locator) );
443          exit;          //exit;
444           //return;           return;
445        }        }
446    
447  //exit;  //exit;
# Line 455  class DataSource_Generic extends DesignP Line 500  class DataSource_Generic extends DesignP
500          // ... resolves this._modules.adapter._id to this._modules.adapter._module          // ... resolves this._modules.adapter._id to this._modules.adapter._module
501                    
502          switch ($locator->_adapter_type) {          switch ($locator->_adapter_type) {
503    
504            case 'phpHtmlLib':            case 'phpHtmlLib':
505              //$adapter_arguments = $args[title];              //$adapter_arguments = $args[title];
506                $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataSource');
             $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataListSource');  
507                            
508              // in order to let the Adapter communicate with the Proxy,              // in order to let the Adapter communicate with the Proxy,
509              // instantiate a wrapper method in a third namespace via              // instantiate a wrapper method in a third namespace via
510              // Exporter::export_symbol(from, to)              // Exporter::export_symbol(from, to)
511              $this->set_adapter_options($this);              $this->set_adapter_options($this);
512                break;
513    
514              // NEW [2003-04-17]: Freedom for the adapter!
515              // phpHtmlLib didn't have a tree widget, but PEAR does.
516              // So: Free us from the phpHtmlLib-adapter in this case.
517              case 'free':
518                $this->set_adapter_module('DataSource::Adapter::Free');
519                $this->set_adapter_options($this);
520              break;              break;
521    
522            default:            default:
523              user_error("DataSource::GenericDataSource: no Adapter could be selected!");              user_error("DataSource::Generic: no Adapter could be selected: \$locator->_adapter_type='$locator->_adapter_type'");
524              break;              break;
525          }          }
526    
# Line 663  class DataSource_Generic extends DesignP Line 715  class DataSource_Generic extends DesignP
715        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)
716          switch ($this->_query[metatype]) {          switch ($this->_query[metatype]) {
717            case 'data':            case 'data':
718              //$command = 'queryData';              $command = 'queryData';
719              $command = 'getObjects';   // FIXME!!!              
720                //$command = 'getObjects';   // FIXME!!!
721              //$this->_locator->set_option('metadata.command', $command);              //$this->_locator->set_option('metadata.command', $command);
722    /*
723              $args = array();              $args = array();
724              switch ($this->_query[vartype]) {              switch ($this->_query[vartype]) {
725                case 'object':                case 'objects':
726                  if (!$this->_query[classname]) {                  if (!$this->_query[classname]) {
727                    $msg = "_query[vartype] == 'object' requires _query[classname]";                    $msg = "_query[vartype] == 'objects' requires _query[classname]";
728                    user_error("GenericDataSource::query_data() - failed: " . $msg);                    user_error("DataSource::Generic: query_data() - failed: " . $msg);
729                  }                  }
730                  array_push($args, $this->_query[classname]);                  array_push($args, $this->_query[classname]);
731                  break;                  break;
732              }              }
733              break;   */
734                $query_args = array();
735                
736                 $msg_prefix = "DataSource::Generic::datasource_handler_buildoptions failed: ";
737                 switch ($this->_query[abstract_type]) {
738                  case 'item':
739                    if (!$this->_query[nodename]) {
740                      $msg = "_query[vartype] == 'objects' requires _query[nodename]";
741                      user_error($msg_prefix . $msg);
742                    }
743                    $query_args[guid] = $this->_query[ident];
744                    $query_args[nodename] = $this->_query[nodename];
745                    break;
746                  case 'list':
747                    if (!$this->_query[nodename]) {
748                      $msg = "_query[vartype] == 'objects' requires _query[nodename]";
749                      user_error($msg_prefix . $msg);
750                    }
751                    //array_push($query_args, $this->_query[nodename]);
752                    $query_args[nodename] = $this->_query[nodename];
753                    if($this->_query[list_meta]) { $query_args[list_meta] = $this->_query[list_meta]; }
754                    break;
755                  case 'tree':
756                    /*
757                    if (!$this->_query[nodename]) {
758                      $msg = "_query[vartype] == 'objects' requires _query[nodename]";
759                      user_error($msg_prefix . $msg);
760                    }
761                    */
762                    $query_args[guid] = $this->_query[ident];
763                    //$query_args[nodename] = $this->_query[nodename];
764                    break;
765                  default:
766                    $msg = "\$this->_query[abstract_type] could not be dispatched as 'item', 'list' or 'tree'.";
767                    user_error($msg_prefix . $msg);
768                    break;
769                }
770                
771                // filter???
772                if ($this->_query[filter]) {
773                  $query_args[filter] = $this->_query[filter];
774                }
775                
776                // dispatch action
777                if ($this->_query[action] == 'write') {
778                 $query_args[action] = $this->_query[action];
779                 $query_args[data] = $this->_query[data];
780                } elseif ($this->_query[action] == 'delete') {
781                 $query_args[action] = $this->_query[action];
782                }
783                
784                $args = array(
785                              'data_type' => $this->_query[abstract_type],
786                              'query_args' => $query_args
787                              );
788               break;
789    
790              // querySchema
791            case 'schema':            case 'schema':
792                //print "Testing schema:" . "<br>";
793              $command = 'querySchema';              $command = 'querySchema';
794                $args = array( $this->_query[filter] );
795              break;              break;
796                
797              // remoteMethod
798              case 'method':
799                $command = $this->_query[method];
800                $args = $this->_query[args];
801                break;
802    
803          }          }
804                
805          
806            // FIXME: bad behaviour?
807            if (!is_array($args)) { $args = array( $args ); }
808                    
809          /*          /*
810          $this->_query[rpc_command] = $command;          $this->_query[rpc_command] = $command;
# Line 714  class DataSource_Generic extends DesignP Line 837  class DataSource_Generic extends DesignP
837                
838    }    }
839    
840    
841    
842          function &fetch_result() {          function &fetch_result() {
843    
844          //print Dumper($this);
845                
846        $this->datasource_handler_buildoptions();        $this->datasource_handler_buildoptions();
847    
848        $method = $this->_locator->_call[_method];        $call = $this->_locator->get_call();
849        $args = $this->_locator->_call[_arguments];  
850                //print Dumper($call);
851          //return;
852    
853        // pre-flight checks        // pre-flight checks
854          if (!$method) {          if (!$call[method]) {
855            $msg = "Remote command could not be resolved, please pass in or check configuration.";            $msg = "Remote method is empty, please pass in proper metadata or check configuration.";
856                          user_error("GenericDataSource::query_data() - failed: " . $msg);                          user_error("DataSource::Generic: query_data() - failed: " . $msg);
857            return;            return;
858          }          }
859    
# Line 732  class DataSource_Generic extends DesignP Line 861  class DataSource_Generic extends DesignP
861    
862        // do remote call here and get result        // do remote call here and get result
863        // FIXME: handle synchronous/asynchronous mode here!!!        // FIXME: handle synchronous/asynchronous mode here!!!
864          $this->datasource_handler_call($method, $args);          $this->datasource_handler_call($call[method], $call[args]);
865                    
866                    
867          // TODO: ... = $this->poll_handler_result  and  $this->get_handler_result          // TODO: ... = $this->poll_handler_result  and  $this->get_handler_result
# Line 743  class DataSource_Generic extends DesignP Line 872  class DataSource_Generic extends DesignP
872          $this->_result_count = sizeof($this->_result);          $this->_result_count = sizeof($this->_result);
873    
874        // trace        // trace
875          if ($this->_debug[notice]) {          //if (constants::get('VERBOSE') && $this->_debug[notice]) {
876            if (constants::get('VERBOSE') or constants::get('ERRORS_ONLY')) {
877            //print "_result = " . Dumper($this->_result);            //print "_result = " . Dumper($this->_result);
878            print "DataSource::Generic->_result_count = " . $this->_result_count . "<br/>";            //print "<div><b><font color=\"darkgreen\">Debug:</font></b> DataSource::Generic->_result_count = <b>" . $this->_result_count . "</b></div>";
879              $this->draw_status_box();
880          }          }
881            
882          return $this->_result;          return $this->_result;
883    
884          }          }
885    
886      function draw_status_box() {
887    
888        static $boxcount;
889        
890        $boxcount++;
891    
892        $box = container();
893    
894        // box style
895        $style = container(
896          html_style("text/css", '.boxlabel_darkgreen { color: darkgreen; font-weight:bold; }'),
897          html_style("text/css", '.box_dsg { background: #20ab39; color: white; border: 2px black groove; width:640px; padding:10px; margin:40px; }')
898        );
899        $box->add( $style );
900        
901        // box content
902        $statusbox = html_div('box_dsg');
903        $statusbox->add( html_b("DataSource::Generic"), html_br() );
904        $locatorbox = html_div('box_dsg');
905        $locatorbox->set_id("locatorbox_$boxcount");
906        $locatorbox->add( Dumper($this->_locator) );
907        
908        // FIXME: ie/mozilla?
909        //$locatorbox->set_style('display:none;');
910        //$locatorbox->set_style('visibility:hidden;');
911        // already duplicate inside Tracer!!!
912        $locatorbox->set_style('visibility:hidden; position:absolute; z-index:1; margin-top:30px; padding:5px;');
913        
914        $statusbox->add( html_span('boxlabel_darkgreen', "Locator:"), link::js_function( 'toggleVisibility', array("locatorbox_$boxcount"), '[show]'), $locatorbox, html_br() );
915        $call = $this->_locator->get_call();
916        $statusbox->add( html_span('boxlabel_darkgreen', "Method:"), $call[method], html_br() );
917        if (sizeof($call[args])) {
918          $statusbox->add( html_span('boxlabel_darkgreen', "Arguments:"), Dumper($call[args]), html_br() );
919        }
920        $statusbox->add( html_span('boxlabel_darkgreen', "Count:"), $this->get_result_count(), html_br() );
921        $box->add( $statusbox );
922    
923        //print $box->render();
924        trace( $box );
925    
926      }
927    
928    
929    function &query_data() {    function &query_data() {
930      //print "query!<br/>";      //print "query!<br/>";
# Line 767  class DataSource_Generic extends DesignP Line 940  class DataSource_Generic extends DesignP
940    function &get_result() {    function &get_result() {
941      return $this->_result;      return $this->_result;
942    }    }
943      
944      function get_result_count() {
945        return $this->_result_count;
946      }
947                    
948  }  }
949    
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