/[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 1.13 by jonen, Fri Apr 4 02:37:14 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 1.13  2003/04/04 02:37:14  jonen
19     * _query[action] == write
20     *
21     * Revision 1.12  2003/03/29 08:00:48  joko
22     * modified ErrorBoxing
23     *
24     * Revision 1.11  2003/03/28 06:45:26  joko
25     * VERBOSE mode
26     *
27     * Revision 1.10  2003/03/28 03:01:02  joko
28     * more fancy debugging-output
29     *
30     * Revision 1.9  2003/03/27 16:24:26  jonen
31     * + mugled namespace
32     * + added enhanced 'queryData'
33     *
34     * Revision 1.8  2003/03/20 07:22:14  jonen
35     * + modified case 'object' to 'objects'
36     *   (cause its loads all *objects* of a given classname)
37     *
38     * Revision 1.7  2003/03/11 01:43:00  joko
39     * + fixed metadata for phpDocumentor
40     *
41     * Revision 1.6  2003/03/11 01:22:25  joko
42     * + fixed metadata for phpDocumentor
43     *
44     * Revision 1.5  2003/03/11 00:12:49  joko
45     * + fixed metadata for phpDocumentor
46     *
47     * Revision 1.4  2003/03/10 23:25:03  joko
48     * + fixed metadata for phpDocumentor
49     *
50   * Revision 1.3  2003/03/09 15:50:36  joko   * Revision 1.3  2003/03/09 15:50:36  joko
51   * + additional metadata for Autodia   * + additional metadata for Autodia
52   *   *
# Line 44  Line 79 
79   *   *
80   * Revision 1.1  2003/03/01 03:10:40  joko   * Revision 1.1  2003/03/01 03:10:40  joko
81   * + initial commit   * + initial commit
82   *   * </pre>
83   *   *
84   */   */
85    
# Line 123  loadModule('DesignPattern::AdapterProxy' Line 158  loadModule('DesignPattern::AdapterProxy'
158   * --- snipped into here from above ---   * --- snipped into here from above ---
159   * </pre>   * </pre>
160   *   *
161   *   * <p>
162   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------
163   *   *
164   * Data::Driver::Proxy instantiates "handlers" below itself   * Data::Driver::Proxy instantiates "handlers" below itself
# Line 144  loadModule('DesignPattern::AdapterProxy' Line 179  loadModule('DesignPattern::AdapterProxy'
179   * </pre>   * </pre>
180   *   *
181   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------
182     * </p>
183   *   *
184   *   *
185     * <p>
186   * <b>How to use?</b>   * <b>How to use?</b>
187   *   *
188   * Pass an array holding "locator metadata" to the constructor.   * Pass an array holding "locator metadata" to the constructor.
189   * GenericDataSource takes care of the rest.   * GenericDataSource takes care of the rest.
190   *   *
191     * <pre>
192   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
193   *   *
194   *  1. doing rpc-calls....   *  1. doing rpc-calls....
# Line 172  loadModule('DesignPattern::AdapterProxy' Line 210  loadModule('DesignPattern::AdapterProxy'
210   *    $source = ne w GenericDataSource($locator);   *    $source = ne w GenericDataSource($locator);
211   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
212   *    </code>   *    </code>
213     * </pre>
214     * </p>
215     *
216   *   *
217   * @link http://www.netfrag.org/~joko/   * @link http://www.netfrag.org/~joko/
218   * @author Andreas Motl <andreas.motl@ilo.de>   * @author Andreas Motl <andreas.motl@ilo.de>
# Line 189  loadModule('DesignPattern::AdapterProxy' Line 230  loadModule('DesignPattern::AdapterProxy'
230   * @subpackage DataSource   * @subpackage DataSource
231   * @name DataSource::Generic   * @name DataSource::Generic
232   *   *
233   * @todo   * @todo this:
234   * <ul>   * o mungle this to be able to be wrapped around phpHtmlLib's own storage-handles
235   *  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>  
236   *   *
237     * <pre>
238  //              !!!!!!!!          THIS IS THE PROBLEM          !!!!!!!!   *              !!!!!!!!          THIS IS THE PROBLEM          !!!!!!!!
239  //    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!   *    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!
240  //   *
241  //    THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy   *    THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy
242  //    inheritance trees at the same time, which is *not* possible at   *    inheritance trees at the same time, which is *not* possible at
243  //    declare-time. We *do* need some runtime-infrastructure to solve this!   *    declare-time. We *do* need some runtime-infrastructure to solve this!
244  //   *
245  //    TODO: move build- and check-locator stuff from ObjectList to this place!!!   *    TODO: move build- and check-locator stuff from ObjectList to this place!!!
246  //   *
247  //    ABOUT:   *    ABOUT:
248  //      1. otherwhere: WebApp - scope:   *      1. otherwhere: WebApp - scope:
249  //          x handles page vs. block vs. widget; dispatches MVC-View   *          x handles page vs. block vs. widget; dispatches MVC-View
250  //      2. here: DataSource - scope:   *      2. here: DataSource - scope:
251  //          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.))
252  //          o clean implementation using a DesignPattern::AdapterProxy   *          o clean implementation using a DesignPattern::AdapterProxy
253  //   * </pre>
254     *
255  */   *
256     */
257  class DataSource_Generic extends DesignPattern_AdapterProxy {  class DataSource_Generic extends DesignPattern_AdapterProxy {
258    
259  //    !!!!!!!!   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 478  class DataSource_Generic extends DesignP
478            case 'phpHtmlLib':            case 'phpHtmlLib':
479              //$adapter_arguments = $args[title];              //$adapter_arguments = $args[title];
480    
481              $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataListSource');              $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataSource');
482                            
483              // in order to let the Adapter communicate with the Proxy,              // in order to let the Adapter communicate with the Proxy,
484              // instantiate a wrapper method in a third namespace via              // instantiate a wrapper method in a third namespace via
# Line 643  class DataSource_Generic extends DesignP Line 683  class DataSource_Generic extends DesignP
683        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)
684          switch ($this->_query[metatype]) {          switch ($this->_query[metatype]) {
685            case 'data':            case 'data':
686              //$command = 'queryData';              $command = 'queryData';
687              $command = 'getObjects';   // FIXME!!!              
688                //$command = 'getObjects';   // FIXME!!!
689              //$this->_locator->set_option('metadata.command', $command);              //$this->_locator->set_option('metadata.command', $command);
690    /*
691              $args = array();              $args = array();
692              switch ($this->_query[vartype]) {              switch ($this->_query[vartype]) {
693                case 'object':                case 'objects':
694                  if (!$this->_query[classname]) {                  if (!$this->_query[classname]) {
695                    $msg = "_query[vartype] == 'object' requires _query[classname]";                    $msg = "_query[vartype] == 'objects' requires _query[classname]";
696                    user_error("GenericDataSource::query_data() - failed: " . $msg);                    user_error("GenericDataSource::query_data() - failed: " . $msg);
697                  }                  }
698                  array_push($args, $this->_query[classname]);                  array_push($args, $this->_query[classname]);
699                  break;                  break;
700              }              }
701              break;   */
702                $query_args = array();
703                 switch ($this->_query[abstract_type]) {
704                  case 'list':
705                    if (!$this->_query[classname]) {
706                      $msg = "_query[vartype] == 'objects' requires _query[classname]";
707                      user_error("GenericDataSource::query_data() - failed: " . $msg);
708                    }
709                    //array_push($query_args, $this->_query[classname]);
710                    $query_args[classname] = $this->_query[classname];
711                    break;
712                  case 'item':
713                    if (!$this->_query[classname]) {
714                      $msg = "_query[vartype] == 'objects' requires _query[classname]";
715                      user_error("GenericDataSource::query_data() - failed: " . $msg);
716                    }
717                    $query_args[guid] = $this->_query[ident];
718                    $query_args[classname] = $this->_query[classname];
719                    break;              
720                }
721                if($this->_query[action] == 'write') {
722                 $query_args[action] = $this->_query[action];
723                 $query_args[data] = $this->_query[data];
724                }
725                $args = array(
726                              'data_type' => $this->_query[abstract_type],
727                              'query_args' => $query_args
728                              );
729               break;
730    
731              // querySchema
732            case 'schema':            case 'schema':
733                //print "Testing schema:" . "<br>";
734              $command = 'querySchema';              $command = 'querySchema';
735              break;              break;
736          }          }
# Line 694  class DataSource_Generic extends DesignP Line 767  class DataSource_Generic extends DesignP
767                
768    }    }
769    
770    
771    
772          function &fetch_result() {          function &fetch_result() {
773                
774        $this->datasource_handler_buildoptions();        $this->datasource_handler_buildoptions();
775    
776        $method = $this->_locator->_call[_method];        $call = $this->_locator->get_call();
777        $args = $this->_locator->_call[_arguments];        //print Dumper($call);
778          
779        // pre-flight checks        // pre-flight checks
780          if (!$method) {          if (!$call[method]) {
781            $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.";
782                          user_error("GenericDataSource::query_data() - failed: " . $msg);                          user_error("GenericDataSource::query_data() - failed: " . $msg);
783            return;            return;
784          }          }
# Line 712  class DataSource_Generic extends DesignP Line 787  class DataSource_Generic extends DesignP
787    
788        // do remote call here and get result        // do remote call here and get result
789        // FIXME: handle synchronous/asynchronous mode here!!!        // FIXME: handle synchronous/asynchronous mode here!!!
790          $this->datasource_handler_call($method, $args);          $this->datasource_handler_call($call[method], $call[args]);
791                    
792                    
793          // 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 798  class DataSource_Generic extends DesignP
798          $this->_result_count = sizeof($this->_result);          $this->_result_count = sizeof($this->_result);
799    
800        // trace        // trace
801          if ($this->_debug[notice]) {          //if (constants::get('VERBOSE') && $this->_debug[notice]) {
802            if (constants::get('VERBOSE') or constants::get('ERRORS_ONLY')) {
803            //print "_result = " . Dumper($this->_result);            //print "_result = " . Dumper($this->_result);
804            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>";
805              $this->draw_status_box();
806          }          }
807            
808          return $this->_result;          return $this->_result;
809    
810          }          }
811    
812      function draw_status_box() {
813    
814        static $boxcount;
815        
816        $boxcount++;
817    
818        $box = container();
819    
820        // box client code (javascript)
821        $code_js = "
822        <script language=\"javascript\">
823        function toggle_vis(id) {
824          elem = eval('document.all.' + id);
825          status = elem.style.getAttribute('display');
826          if (status == 'none') {
827            elem.style.setAttribute('display', 'block');
828          } else {
829            elem.style.setAttribute('display', 'none');
830          }
831        }
832        </script>
833        ";
834        //$script = html_script($code_js);
835        //print $script->render();
836        $box->add( $code_js );
837        
838        // box style
839        $style = container(
840          html_style("text/css", '.boxlabel_darkgreen { color: darkgreen; font-weight:bold; }'),
841          html_style("text/css", '.box_dsg { background: #20ab39; color: white; border: 2px black groove; width:640px; padding:10px; margin:40px; }')
842        );
843        $box->add( $style );
844        
845        // box content
846        $statusbox = html_div('box_dsg');
847        $statusbox->add( html_b("DataSource::Generic"), html_br() );
848        $locatorbox = html_div('box_dsg');
849        $locatorbox->set_id("locatorbox_$boxcount");
850        $locatorbox->add( Dumper($this->_locator) );
851        //$locatorbox->set_style('visibility:false;');
852        $locatorbox->set_style('display:none;');
853        
854        $statusbox->add( html_span('boxlabel_darkgreen', "Locator:"), html_a("javascript:toggle_vis('locatorbox_$boxcount');", '[show]'), $locatorbox, html_br() );
855        $call = $this->_locator->get_call();
856        $statusbox->add( html_span('boxlabel_darkgreen', "Method:"), $call[method], html_br() );
857        if (sizeof($call[args])) {
858          $statusbox->add( html_span('boxlabel_darkgreen', "Arguments:"), Dumper($call[args]), html_br() );
859        }
860        $statusbox->add( html_span('boxlabel_darkgreen', "Count:"), $this->get_result_count(), html_br() );
861        $box->add( $statusbox );
862    
863        print $box->render();
864    
865      }
866    
867    
868    function &query_data() {    function &query_data() {
869      //print "query!<br/>";      //print "query!<br/>";
# Line 747  class DataSource_Generic extends DesignP Line 879  class DataSource_Generic extends DesignP
879    function &get_result() {    function &get_result() {
880      return $this->_result;      return $this->_result;
881    }    }
882      
883      function get_result_count() {
884        return $this->_result_count;
885      }
886                    
887  }  }
888    
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