/[cvs]/nfo/php/libs/org.netfrag.glib/DataSource/Generic.php
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revision 1.3 by joko, Sun Mar 9 15:50:36 2003 UTC revision 1.14 by joko, Fri Apr 4 21:19:21 2003 UTC
# Line 9  Line 9 
9   */   */
10    
11  /**  /**
12     * <b>Cvs-Log:</b>
13     *
14     * <pre>
15   * $Id$   * $Id$
16   *   *
17   * $Log$   * $Log$
18     * Revision 1.14  2003/04/04 21:19:21  joko
19     * modified exception handling (enhanced, purged redundant code)
20     *
21     * Revision 1.13  2003/04/04 02:37:14  jonen
22     * _query[action] == write
23     *
24     * Revision 1.12  2003/03/29 08:00:48  joko
25     * modified ErrorBoxing
26     *
27     * Revision 1.11  2003/03/28 06:45:26  joko
28     * VERBOSE mode
29     *
30     * Revision 1.10  2003/03/28 03:01:02  joko
31     * more fancy debugging-output
32     *
33     * Revision 1.9  2003/03/27 16:24:26  jonen
34     * + mugled namespace
35     * + added enhanced 'queryData'
36     *
37     * Revision 1.8  2003/03/20 07:22:14  jonen
38     * + modified case 'object' to 'objects'
39     *   (cause its loads all *objects* of a given classname)
40     *
41     * Revision 1.7  2003/03/11 01:43:00  joko
42     * + fixed metadata for phpDocumentor
43     *
44     * Revision 1.6  2003/03/11 01:22:25  joko
45     * + fixed metadata for phpDocumentor
46     *
47     * Revision 1.5  2003/03/11 00:12:49  joko
48     * + fixed metadata for phpDocumentor
49     *
50     * Revision 1.4  2003/03/10 23:25:03  joko
51     * + fixed metadata for phpDocumentor
52     *
53   * Revision 1.3  2003/03/09 15:50:36  joko   * Revision 1.3  2003/03/09 15:50:36  joko
54   * + additional metadata for Autodia   * + additional metadata for Autodia
55   *   *
# Line 44  Line 82 
82   *   *
83   * Revision 1.1  2003/03/01 03:10:40  joko   * Revision 1.1  2003/03/01 03:10:40  joko
84   * + initial commit   * + initial commit
85   *   * </pre>
86   *   *
87   */   */
88    
# Line 123  loadModule('DesignPattern::AdapterProxy' Line 161  loadModule('DesignPattern::AdapterProxy'
161   * --- snipped into here from above ---   * --- snipped into here from above ---
162   * </pre>   * </pre>
163   *   *
164   *   * <p>
165   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------
166   *   *
167   * Data::Driver::Proxy instantiates "handlers" below itself   * Data::Driver::Proxy instantiates "handlers" below itself
# Line 144  loadModule('DesignPattern::AdapterProxy' Line 182  loadModule('DesignPattern::AdapterProxy'
182   * </pre>   * </pre>
183   *   *
184   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------
185     * </p>
186   *   *
187   *   *
188     * <p>
189   * <b>How to use?</b>   * <b>How to use?</b>
190   *   *
191   * Pass an array holding "locator metadata" to the constructor.   * Pass an array holding "locator metadata" to the constructor.
192   * GenericDataSource takes care of the rest.   * GenericDataSource takes care of the rest.
193   *   *
194     * <pre>
195   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
196   *   *
197   *  1. doing rpc-calls....   *  1. doing rpc-calls....
# Line 172  loadModule('DesignPattern::AdapterProxy' Line 213  loadModule('DesignPattern::AdapterProxy'
213   *    $source = ne w GenericDataSource($locator);   *    $source = ne w GenericDataSource($locator);
214   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
215   *    </code>   *    </code>
216     * </pre>
217     * </p>
218     *
219   *   *
220   * @link http://www.netfrag.org/~joko/   * @link http://www.netfrag.org/~joko/
221   * @author Andreas Motl <andreas.motl@ilo.de>   * @author Andreas Motl <andreas.motl@ilo.de>
# Line 189  loadModule('DesignPattern::AdapterProxy' Line 233  loadModule('DesignPattern::AdapterProxy'
233   * @subpackage DataSource   * @subpackage DataSource
234   * @name DataSource::Generic   * @name DataSource::Generic
235   *   *
236   * @todo   * @todo this:
237   * <ul>   * o mungle this to be able to be wrapped around phpHtmlLib's own storage-handles
238   *  o mungle this to be able to be wrapped around phpHtmlLib's own storage-handles   * o implement another Data::Driver::Proxy container
  *  o implement another Data::Driver::Proxy container  
  * </ul>  
239   *   *
240     * <pre>
241  //              !!!!!!!!          THIS IS THE PROBLEM          !!!!!!!!   *              !!!!!!!!          THIS IS THE PROBLEM          !!!!!!!!
242  //    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!   *    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!
243  //   *
244  //    THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy   *    THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy
245  //    inheritance trees at the same time, which is *not* possible at   *    inheritance trees at the same time, which is *not* possible at
246  //    declare-time. We *do* need some runtime-infrastructure to solve this!   *    declare-time. We *do* need some runtime-infrastructure to solve this!
247  //   *
248  //    TODO: move build- and check-locator stuff from ObjectList to this place!!!   *    TODO: move build- and check-locator stuff from ObjectList to this place!!!
249  //   *
250  //    ABOUT:   *    ABOUT:
251  //      1. otherwhere: WebApp - scope:   *      1. otherwhere: WebApp - scope:
252  //          x handles page vs. block vs. widget; dispatches MVC-View   *          x handles page vs. block vs. widget; dispatches MVC-View
253  //      2. here: DataSource - scope:   *      2. here: DataSource - scope:
254  //          x handles bridge to frameworks (e.g. phpHtmlLib) vs. actual data driver libs (PEAR, etc.))   *          x handles bridge to frameworks (e.g. phpHtmlLib) vs. actual data driver libs (PEAR, etc.))
255  //          o clean implementation using a DesignPattern::AdapterProxy   *          o clean implementation using a DesignPattern::AdapterProxy
256  //   * </pre>
257     *
258  */   *
259     */
260  class DataSource_Generic extends DesignPattern_AdapterProxy {  class DataSource_Generic extends DesignPattern_AdapterProxy {
261    
262  //    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!  //    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!
# Line 438  class DataSource_Generic extends DesignP Line 481  class DataSource_Generic extends DesignP
481            case 'phpHtmlLib':            case 'phpHtmlLib':
482              //$adapter_arguments = $args[title];              //$adapter_arguments = $args[title];
483    
484              $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataListSource');              $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataSource');
485                            
486              // in order to let the Adapter communicate with the Proxy,              // in order to let the Adapter communicate with the Proxy,
487              // instantiate a wrapper method in a third namespace via              // instantiate a wrapper method in a third namespace via
# Line 643  class DataSource_Generic extends DesignP Line 686  class DataSource_Generic extends DesignP
686        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)
687          switch ($this->_query[metatype]) {          switch ($this->_query[metatype]) {
688            case 'data':            case 'data':
689              //$command = 'queryData';              $command = 'queryData';
690              $command = 'getObjects';   // FIXME!!!              
691                //$command = 'getObjects';   // FIXME!!!
692              //$this->_locator->set_option('metadata.command', $command);              //$this->_locator->set_option('metadata.command', $command);
693    /*
694              $args = array();              $args = array();
695              switch ($this->_query[vartype]) {              switch ($this->_query[vartype]) {
696                case 'object':                case 'objects':
697                  if (!$this->_query[classname]) {                  if (!$this->_query[classname]) {
698                    $msg = "_query[vartype] == 'object' requires _query[classname]";                    $msg = "_query[vartype] == 'objects' requires _query[classname]";
699                    user_error("GenericDataSource::query_data() - failed: " . $msg);                    user_error("GenericDataSource::query_data() - failed: " . $msg);
700                  }                  }
701                  array_push($args, $this->_query[classname]);                  array_push($args, $this->_query[classname]);
702                  break;                  break;
703              }              }
704              break;   */
705                $query_args = array();
706                 switch ($this->_query[abstract_type]) {
707                  case 'list':
708                    if (!$this->_query[classname]) {
709                      $msg = "_query[vartype] == 'objects' requires _query[classname]";
710                      user_error("GenericDataSource::query_data() - failed: " . $msg);
711                    }
712                    //array_push($query_args, $this->_query[classname]);
713                    $query_args[classname] = $this->_query[classname];
714                    break;
715                  case 'item':
716                    if (!$this->_query[classname]) {
717                      $msg = "_query[vartype] == 'objects' requires _query[classname]";
718                      user_error("GenericDataSource::query_data() - failed: " . $msg);
719                    }
720                    $query_args[guid] = $this->_query[ident];
721                    $query_args[classname] = $this->_query[classname];
722                    break;              
723                }
724                if($this->_query[action] == 'write') {
725                 $query_args[action] = $this->_query[action];
726                 $query_args[data] = $this->_query[data];
727                }
728                $args = array(
729                              'data_type' => $this->_query[abstract_type],
730                              'query_args' => $query_args
731                              );
732               break;
733    
734              // querySchema
735            case 'schema':            case 'schema':
736                //print "Testing schema:" . "<br>";
737              $command = 'querySchema';              $command = 'querySchema';
738                $args = array( $this->_query[filter] );
739              break;              break;
740          }          }
741                
# Line 694  class DataSource_Generic extends DesignP Line 771  class DataSource_Generic extends DesignP
771                
772    }    }
773    
774    
775    
776          function &fetch_result() {          function &fetch_result() {
777                
778        $this->datasource_handler_buildoptions();        $this->datasource_handler_buildoptions();
779    
780        $method = $this->_locator->_call[_method];        $call = $this->_locator->get_call();
781        $args = $this->_locator->_call[_arguments];        //print Dumper($call);
782          
783        // pre-flight checks        // pre-flight checks
784          if (!$method) {          if (!$call[method]) {
785            $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.";
786                          user_error("GenericDataSource::query_data() - failed: " . $msg);                          user_error("GenericDataSource::query_data() - failed: " . $msg);
787            return;            return;
788          }          }
# Line 712  class DataSource_Generic extends DesignP Line 791  class DataSource_Generic extends DesignP
791    
792        // do remote call here and get result        // do remote call here and get result
793        // FIXME: handle synchronous/asynchronous mode here!!!        // FIXME: handle synchronous/asynchronous mode here!!!
794          $this->datasource_handler_call($method, $args);          $this->datasource_handler_call($call[method], $call[args]);
795                    
796                    
797          // TODO: ... = $this->poll_handler_result  and  $this->get_handler_result          // TODO: ... = $this->poll_handler_result  and  $this->get_handler_result
# Line 723  class DataSource_Generic extends DesignP Line 802  class DataSource_Generic extends DesignP
802          $this->_result_count = sizeof($this->_result);          $this->_result_count = sizeof($this->_result);
803    
804        // trace        // trace
805          if ($this->_debug[notice]) {          //if (constants::get('VERBOSE') && $this->_debug[notice]) {
806            if (constants::get('VERBOSE') or constants::get('ERRORS_ONLY')) {
807            //print "_result = " . Dumper($this->_result);            //print "_result = " . Dumper($this->_result);
808            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>";
809              $this->draw_status_box();
810          }          }
811            
812          return $this->_result;          return $this->_result;
813    
814          }          }
815    
816      function draw_status_box() {
817    
818        static $boxcount;
819        
820        $boxcount++;
821    
822        $box = container();
823    
824        // box style
825        $style = container(
826          html_style("text/css", '.boxlabel_darkgreen { color: darkgreen; font-weight:bold; }'),
827          html_style("text/css", '.box_dsg { background: #20ab39; color: white; border: 2px black groove; width:640px; padding:10px; margin:40px; }')
828        );
829        $box->add( $style );
830        
831        // box content
832        $statusbox = html_div('box_dsg');
833        $statusbox->add( html_b("DataSource::Generic"), html_br() );
834        $locatorbox = html_div('box_dsg');
835        $locatorbox->set_id("locatorbox_$boxcount");
836        $locatorbox->add( Dumper($this->_locator) );
837        
838        // FIXME: ie/mozilla?
839        //$locatorbox->set_style('visibility:false;');
840        $locatorbox->set_style('display:none;');
841        
842        $statusbox->add( html_span('boxlabel_darkgreen', "Locator:"), jsAnchor( 'toggle_vis', array("locatorbox_$boxcount"), '[show]'), $locatorbox, html_br() );
843        $call = $this->_locator->get_call();
844        $statusbox->add( html_span('boxlabel_darkgreen', "Method:"), $call[method], html_br() );
845        if (sizeof($call[args])) {
846          $statusbox->add( html_span('boxlabel_darkgreen', "Arguments:"), Dumper($call[args]), html_br() );
847        }
848        $statusbox->add( html_span('boxlabel_darkgreen', "Count:"), $this->get_result_count(), html_br() );
849        $box->add( $statusbox );
850    
851        //print $box->render();
852        trace( $box );
853    
854      }
855    
856    
857    function &query_data() {    function &query_data() {
858      //print "query!<br/>";      //print "query!<br/>";
# Line 747  class DataSource_Generic extends DesignP Line 868  class DataSource_Generic extends DesignP
868    function &get_result() {    function &get_result() {
869      return $this->_result;      return $this->_result;
870    }    }
871      
872      function get_result_count() {
873        return $this->_result_count;
874      }
875                    
876  }  }
877    
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