/[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 1.12 by joko, Sat Mar 29 08:00:48 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 1.12  2003/03/29 08:00:48  joko
19     * modified ErrorBoxing
20     *
21     * Revision 1.11  2003/03/28 06:45:26  joko
22     * VERBOSE mode
23     *
24     * Revision 1.10  2003/03/28 03:01:02  joko
25     * more fancy debugging-output
26     *
27     * Revision 1.9  2003/03/27 16:24:26  jonen
28     * + mugled namespace
29     * + added enhanced 'queryData'
30     *
31     * Revision 1.8  2003/03/20 07:22:14  jonen
32     * + modified case 'object' to 'objects'
33     *   (cause its loads all *objects* of a given classname)
34     *
35     * Revision 1.7  2003/03/11 01:43:00  joko
36     * + fixed metadata for phpDocumentor
37     *
38     * Revision 1.6  2003/03/11 01:22:25  joko
39     * + fixed metadata for phpDocumentor
40     *
41     * Revision 1.5  2003/03/11 00:12:49  joko
42     * + fixed metadata for phpDocumentor
43     *
44     * Revision 1.4  2003/03/10 23:25:03  joko
45     * + fixed metadata for phpDocumentor
46     *
47   * Revision 1.3  2003/03/09 15:50:36  joko   * Revision 1.3  2003/03/09 15:50:36  joko
48   * + additional metadata for Autodia   * + additional metadata for Autodia
49   *   *
# Line 44  Line 76 
76   *   *
77   * Revision 1.1  2003/03/01 03:10:40  joko   * Revision 1.1  2003/03/01 03:10:40  joko
78   * + initial commit   * + initial commit
79   *   * </pre>
80   *   *
81   */   */
82    
# Line 123  loadModule('DesignPattern::AdapterProxy' Line 155  loadModule('DesignPattern::AdapterProxy'
155   * --- snipped into here from above ---   * --- snipped into here from above ---
156   * </pre>   * </pre>
157   *   *
158   *   * <p>
159   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------
160   *   *
161   * Data::Driver::Proxy instantiates "handlers" below itself   * Data::Driver::Proxy instantiates "handlers" below itself
# Line 144  loadModule('DesignPattern::AdapterProxy' Line 176  loadModule('DesignPattern::AdapterProxy'
176   * </pre>   * </pre>
177   *   *
178   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------   * !!!!!!  refactor this to Data::Driver::Proxy  !!!!!!     <-----------------
179     * </p>
180   *   *
181   *   *
182     * <p>
183   * <b>How to use?</b>   * <b>How to use?</b>
184   *   *
185   * Pass an array holding "locator metadata" to the constructor.   * Pass an array holding "locator metadata" to the constructor.
186   * GenericDataSource takes care of the rest.   * GenericDataSource takes care of the rest.
187   *   *
188     * <pre>
189   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
190   *   *
191   *  1. doing rpc-calls....   *  1. doing rpc-calls....
# Line 172  loadModule('DesignPattern::AdapterProxy' Line 207  loadModule('DesignPattern::AdapterProxy'
207   *    $source = ne w GenericDataSource($locator);   *    $source = ne w GenericDataSource($locator);
208   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
209   *    </code>   *    </code>
210     * </pre>
211     * </p>
212     *
213   *   *
214   * @link http://www.netfrag.org/~joko/   * @link http://www.netfrag.org/~joko/
215   * @author Andreas Motl <andreas.motl@ilo.de>   * @author Andreas Motl <andreas.motl@ilo.de>
# Line 189  loadModule('DesignPattern::AdapterProxy' Line 227  loadModule('DesignPattern::AdapterProxy'
227   * @subpackage DataSource   * @subpackage DataSource
228   * @name DataSource::Generic   * @name DataSource::Generic
229   *   *
230   * @todo   * @todo this:
231   * <ul>   * o mungle this to be able to be wrapped around phpHtmlLib's own storage-handles
232   *  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>  
233   *   *
234     * <pre>
235  //              !!!!!!!!          THIS IS THE PROBLEM          !!!!!!!!   *              !!!!!!!!          THIS IS THE PROBLEM          !!!!!!!!
236  //    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!   *    !!!!!!!!   here is it where we have to break inheritance again   !!!!!!!!
237  //   *
238  //    THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy   *    THE CONFLICT: Beeing in phpHtmlLib *and* DesignPattern::TransparentProxy
239  //    inheritance trees at the same time, which is *not* possible at   *    inheritance trees at the same time, which is *not* possible at
240  //    declare-time. We *do* need some runtime-infrastructure to solve this!   *    declare-time. We *do* need some runtime-infrastructure to solve this!
241  //   *
242  //    TODO: move build- and check-locator stuff from ObjectList to this place!!!   *    TODO: move build- and check-locator stuff from ObjectList to this place!!!
243  //   *
244  //    ABOUT:   *    ABOUT:
245  //      1. otherwhere: WebApp - scope:   *      1. otherwhere: WebApp - scope:
246  //          x handles page vs. block vs. widget; dispatches MVC-View   *          x handles page vs. block vs. widget; dispatches MVC-View
247  //      2. here: DataSource - scope:   *      2. here: DataSource - scope:
248  //          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.))
249  //          o clean implementation using a DesignPattern::AdapterProxy   *          o clean implementation using a DesignPattern::AdapterProxy
250  //   * </pre>
251     *
252  */   *
253     */
254  class DataSource_Generic extends DesignPattern_AdapterProxy {  class DataSource_Generic extends DesignPattern_AdapterProxy {
255    
256  //    !!!!!!!!   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 475  class DataSource_Generic extends DesignP
475            case 'phpHtmlLib':            case 'phpHtmlLib':
476              //$adapter_arguments = $args[title];              //$adapter_arguments = $args[title];
477    
478              $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataListSource');              $this->set_adapter_module('DataSource::Adapter::phpHtmlLib::DataSource');
479                            
480              // in order to let the Adapter communicate with the Proxy,              // in order to let the Adapter communicate with the Proxy,
481              // instantiate a wrapper method in a third namespace via              // instantiate a wrapper method in a third namespace via
# Line 643  class DataSource_Generic extends DesignP Line 680  class DataSource_Generic extends DesignP
680        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)        // FIXME: abstract this some more (e.g. via a CommandMapper|Registry)
681          switch ($this->_query[metatype]) {          switch ($this->_query[metatype]) {
682            case 'data':            case 'data':
683              //$command = 'queryData';              $command = 'queryData';
684              $command = 'getObjects';   // FIXME!!!              //$command = 'getObjects';   // FIXME!!!
685              //$this->_locator->set_option('metadata.command', $command);              //$this->_locator->set_option('metadata.command', $command);
686    /*
687              $args = array();              $args = array();
688              switch ($this->_query[vartype]) {              switch ($this->_query[vartype]) {
689                case 'object':                case 'objects':
690                  if (!$this->_query[classname]) {                  if (!$this->_query[classname]) {
691                    $msg = "_query[vartype] == 'object' requires _query[classname]";                    $msg = "_query[vartype] == 'objects' requires _query[classname]";
692                    user_error("GenericDataSource::query_data() - failed: " . $msg);                    user_error("GenericDataSource::query_data() - failed: " . $msg);
693                  }                  }
694                  array_push($args, $this->_query[classname]);                  array_push($args, $this->_query[classname]);
695                  break;                  break;
696              }              }
697              break;   */
698                $query_args = array();
699                 switch ($this->_query[abstract_type]) {
700                  case 'list':
701                    if (!$this->_query[classname]) {
702                      $msg = "_query[vartype] == 'objects' requires _query[classname]";
703                      user_error("GenericDataSource::query_data() - failed: " . $msg);
704                    }
705                    //array_push($query_args, $this->_query[classname]);
706                    $query_args[classname] = $this->_query[classname];
707                    break;
708                  case 'item':
709                    if (!$this->_query[classname]) {
710                      $msg = "_query[vartype] == 'objects' requires _query[classname]";
711                      user_error("GenericDataSource::query_data() - failed: " . $msg);
712                    }
713                    $query_args[guid] = $this->_query[ident];
714                    $query_args[classname] = $this->_query[classname];
715                    break;              
716                }
717                $args = array(
718                              'data_type' => $this->_query[abstract_type],
719                              'query_args' => $query_args
720                              );
721               break;
722    
723              // querySchema
724            case 'schema':            case 'schema':
725                //print "Testing schema:" . "<br>";
726              $command = 'querySchema';              $command = 'querySchema';
727              break;              break;
728          }          }
# Line 694  class DataSource_Generic extends DesignP Line 759  class DataSource_Generic extends DesignP
759                
760    }    }
761    
762    
763    
764          function &fetch_result() {          function &fetch_result() {
765                
766        $this->datasource_handler_buildoptions();        $this->datasource_handler_buildoptions();
767    
768        $method = $this->_locator->_call[_method];        $call = $this->_locator->get_call();
769        $args = $this->_locator->_call[_arguments];        //print Dumper($call);
770          
771        // pre-flight checks        // pre-flight checks
772          if (!$method) {          if (!$call[method]) {
773            $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.";
774                          user_error("GenericDataSource::query_data() - failed: " . $msg);                          user_error("GenericDataSource::query_data() - failed: " . $msg);
775            return;            return;
776          }          }
# Line 712  class DataSource_Generic extends DesignP Line 779  class DataSource_Generic extends DesignP
779    
780        // do remote call here and get result        // do remote call here and get result
781        // FIXME: handle synchronous/asynchronous mode here!!!        // FIXME: handle synchronous/asynchronous mode here!!!
782          $this->datasource_handler_call($method, $args);          $this->datasource_handler_call($call[method], $call[args]);
783                    
784                    
785          // 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 790  class DataSource_Generic extends DesignP
790          $this->_result_count = sizeof($this->_result);          $this->_result_count = sizeof($this->_result);
791    
792        // trace        // trace
793          if ($this->_debug[notice]) {          //if (constants::get('VERBOSE') && $this->_debug[notice]) {
794            if (constants::get('VERBOSE') or constants::get('ERRORS_ONLY')) {
795            //print "_result = " . Dumper($this->_result);            //print "_result = " . Dumper($this->_result);
796            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>";
797              $this->draw_status_box();
798          }          }
799            
800          return $this->_result;          return $this->_result;
801    
802          }          }
803    
804      function draw_status_box() {
805    
806        static $boxcount;
807        
808        $boxcount++;
809    
810        $box = container();
811    
812        // box client code (javascript)
813        $code_js = "
814        <script language=\"javascript\">
815        function toggle_vis(id) {
816          elem = eval('document.all.' + id);
817          status = elem.style.getAttribute('display');
818          if (status == 'none') {
819            elem.style.setAttribute('display', 'block');
820          } else {
821            elem.style.setAttribute('display', 'none');
822          }
823        }
824        </script>
825        ";
826        //$script = html_script($code_js);
827        //print $script->render();
828        $box->add( $code_js );
829        
830        // box style
831        $style = container(
832          html_style("text/css", '.boxlabel_darkgreen { color: darkgreen; font-weight:bold; }'),
833          html_style("text/css", '.box_dsg { background: #20ab39; color: white; border: 2px black groove; width:640px; padding:10px; margin:40px; }')
834        );
835        $box->add( $style );
836        
837        // box content
838        $statusbox = html_div('box_dsg');
839        $statusbox->add( html_b("DataSource::Generic"), html_br() );
840        $locatorbox = html_div('box_dsg');
841        $locatorbox->set_id("locatorbox_$boxcount");
842        $locatorbox->add( Dumper($this->_locator) );
843        //$locatorbox->set_style('visibility:false;');
844        $locatorbox->set_style('display:none;');
845        
846        $statusbox->add( html_span('boxlabel_darkgreen', "Locator:"), html_a("javascript:toggle_vis('locatorbox_$boxcount');", '[show]'), $locatorbox, html_br() );
847        $call = $this->_locator->get_call();
848        $statusbox->add( html_span('boxlabel_darkgreen', "Method:"), $call[method], html_br() );
849        if (sizeof($call[args])) {
850          $statusbox->add( html_span('boxlabel_darkgreen', "Arguments:"), Dumper($call[args]), html_br() );
851        }
852        $statusbox->add( html_span('boxlabel_darkgreen', "Count:"), $this->get_result_count(), html_br() );
853        $box->add( $statusbox );
854    
855        print $box->render();
856    
857      }
858    
859    
860    function &query_data() {    function &query_data() {
861      //print "query!<br/>";      //print "query!<br/>";
# Line 747  class DataSource_Generic extends DesignP Line 871  class DataSource_Generic extends DesignP
871    function &get_result() {    function &get_result() {
872      return $this->_result;      return $this->_result;
873    }    }
874      
875      function get_result_count() {
876        return $this->_result_count;
877      }
878                    
879  }  }
880    
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