/[cvs]/nfo/php/libs/org.netfrag.glib/DesignPattern/RemoteProxy.php

Diff of /nfo/php/libs/org.netfrag.glib/DesignPattern/RemoteProxy.php

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-revision 1.3 by joko,
Wed Mar  5 16:10:17 2003 UTC
+revision 1.11 by joko,
Fri Mar 28 06:44:51 2003 UTC
 Line 6
   * @package org.netfrag.glib
   * @name DesignPattern::RemoteProxy
   *
+  *
   */
  /**
+  * <b>Cvs-Log:</b>
+  *
+  * <pre>
   * -------------------------------------------------------------------------
   *    $Id$
   * -------------------------------------------------------------------------
   *    $Log$
+  *    Revision 1.11  2003/03/28 06:44:51  joko
+  *    VERBOSE mode
+  *
+  *    Revision 1.10  2003/03/28 03:05:54  joko
+  *    more fancy debugging-output
+  *
+  *    Revision 1.9  2003/03/10 23:05:25  joko
+  *    + fixed metadata for phpDocumentor
+  *
+  *    Revision 1.8  2003/03/10 22:31:56  joko
+  *    + fixed metadata for phpDocumentor
+  *
+  *    Revision 1.7  2003/03/09 15:51:44  joko
+  *    + additional metadata for Autodia
+  *
+  *    Revision 1.6  2003/03/05 17:28:43  joko
+  *    updated docu (phpDocumentor testing....)
+  *
+  *    Revision 1.5  2003/03/05 17:02:22  joko
+  *    updated docu (phpDocumentor testing....)
+  *
+  *    Revision 1.4  2003/03/05 16:32:19  joko
+  *    updated docu (phpDocumentor testing....)
+  *
   *    Revision 1.3  2003/03/05 16:10:17  joko
   *    updated docu (phpDocumentor testing....)
   *
-Line 107
+Line 136
   *    Revision 1.1  2002/10/09 00:51:39  cvsjoko
   *    + new
   * -------------------------------------------------------------------------
+  * </pre>
+  *
   */
  /**
-  * Data::Driver::Proxy  --  Multiple stage data fetching and caching
+  * Load required modules:
+  *
+  */
+ loadModule('DesignPattern::Proxy');
+ /**
+  * DesignPattern::RemoteProxy  --  Multiple stage data fetching and caching
   *
   *
-  * This class (Data::Driver::Proxy) provides an abstract framework
+  * This class (DesignPattern::RemoteProxy) provides an abstract framework
   * for loading/saving arbitrary data from/to data storages interfaced
   * by storage *proxy*-drivers.
   * Don't mix these up with the concrete storage *handle*-drivers
-Line 122
+Line 163
   * providing a more highlevel, consistent API making
   * it easier for Data::Driver::Proxy to do its main work:
   *
+  * quote from: http://home.earthlink.net/~huston2/dp/proxy.html
+  * "A remote proxy provides a local representative for an
+  * object that resides in a different address space. This is
+  * what the "stub" code in RPC and CORBA provides."
+  *
+  *
   * Multiple stage data fetching and caching:
   *
+  * <pre>
+  *
   * DATA, ...
   *    ... also refered to as data, should be handled as
   *    something called data.
-Line 166
+Line 215
   *    o Data::Driver::PEAR::DB
   *    x Data::Driver::PEAR::Tree (via Data::Lift)
   *
-  */
+  * </pre>
+  *
- /**
+  *
-  * An attempt to implement some software design patterns...
+  * An attempt to implement some software design patterns
   * --- RemoteProxyPattern
   *
+  * @link http://www.agcs.com/supportv2/techpapers/patterns/papers/tutnotes/sld017.htm
+  * @link http://home.earthlink.net/~huston2/dp/proxy.html
+  * @link http://wiki.cs.uiuc.edu/PatternStories/RemoteObject
   * @link http://c2.com/cgi-bin/wiki?ProxyPattern
+  * @link http://c2.com/cgi-bin/wiki?LazyProxies
   *
   * @author Andreas Motl <andreas.motl@ilo.de>
   * @link http://www.netfrag.org/~joko/
-Line 182
+Line 235
   * @link http://www.gnu.org/licenses/lgpl.txt
   *
   * @package org.netfrag.glib
+  * @subpackage DesignPattern
   * @name DesignPattern::RemoteProxy
   *
-  */
- /**
-  * @todo
-  * <pre>
-  *  x extend options to en-/disable caching via a) session and/or b) database
-  *    o make feature available via runtime setter-method to these options
-  *  o use PEAR::Cache for caching purposes!!!
-  *  o refactor database access: use PEAR for this! no more 'connectdb' here!!!
-  *  o make database connection more flexible to make possible
-  *      to have different (probably named) proxy databases (besides a "main database")
-  *  o rename this to Data::Proxy? or split into Data::Query, Data::Result and Data::Wrapper?
-  * </pre>
   *
-  */
+  * @todo extend options to en-/disable caching via a) session and/or b) database
+  *           make feature available via runtime setter-method to these options
- /**
+  * @todo PEAR::Cache for caching purposes!!!
-  * Load required modules:
+  * @todo refactor database access: use PEAR for this! no more 'connectdb' here!!!
+  * @todo make database connection more flexible to make possible
+  *           to have different (probably named) proxy databases (besides a "main database")
+  * @todo rename this to Data::Proxy? or split into Data::Query, Data::Result and Data::Wrapper?
+  * @todo refactor this to a "RemoteObject" class!!! (inheriting from DesignPattern::RemoteObject)
+  * @todo rename this to "DesignPattern::LazyRemoteProxy"???
   *
   */
- loadModule('DesignPattern::Proxy');
  class DesignPattern_RemoteProxy extends DesignPattern_Proxy {
    var $objectId;
-Line 258 
 class DesignPattern_RemoteProxy extends
+Line 302 
 class DesignPattern_RemoteProxy extends
        session_register_safe("proxy");
      }
+     /**
+      * <!-- Autodia -->
+      * can do: (this is metadata supplied for Autodia, don't delete!)
+      *  $this->backend = new DataSource_Proxy_XMLRPC()
+      *
+      */
      if ($this->meta[remote]) {
        //$this->backend = mkObject('Data::Driver::RPC::Remote', $this->meta[rpcinfo]);
        $this->backend = php::mkComponent('DataSource::Proxy::XMLRPC', $this->meta[rpcinfo]);
-Line 431 
 class DesignPattern_RemoteProxy extends
+Line 482 
 class DesignPattern_RemoteProxy extends
            logp(get_class($this) . "->_loadRemote: argument 'guid' requires 'classname'", PEAR_LOG_WARNING);
            return;
          }
+         logp(get_class($this) . "->_loadRemote: getObjectByGuid", PEAR_LOG_DEBUG);
          $args = array( guid => $this->objectId, classname => $this->meta[classname] );
          $result = $this->backend->send('getObjectByGuid', $args );
-Line 439 
 class DesignPattern_RemoteProxy extends
+Line 491 
 class DesignPattern_RemoteProxy extends
            logp(get_class($this) . "->_loadRemote: argument 'oid' requires valid objectId", PEAR_LOG_WARNING);
            return;
          }
+         logp(get_class($this) . "->_loadRemote: getObject", PEAR_LOG_DEBUG);
          $result = $this->backend->send('getObject', $this->objectId);
        } elseif ($this->meta[key]) {
-Line 452 
 class DesignPattern_RemoteProxy extends
+Line 505 
 class DesignPattern_RemoteProxy extends
            return;
          }
          */
+         //logp(get_class($this) . "->_loadRemote: $this->meta[command](" . join(' ', $this->meta[query]) . ")", PEAR_LOG_DEBUG);
+         //print Dumper(array($this->meta[command], $this->meta[query]));
          $result = $this->backend->send($this->meta[command], $this->meta[query]);
        }
+     //print "result: " . dumpVar($result) . "<br>";
+     $status = $this->backend->getStatus();
+     //print Dumper($status);
-     if ($result) {
+     if (constants::get('VERBOSE')) {
-       //print "result: " . dumpVar($result) . "<br>";
+       $style = html_style("text/css", '.boxlabel_yellow { color: yellow; font-weight:bold; }');
-       if (count($result) == 0) { return; }
+       $statusbox = html_div();
+       $statusbox->set_style('background: #558856; border: 2px black groove; width:640px; padding:10px; margin:40px;');
+       $statusbox->add( html_span('boxlabel_yellow', "Connected:"), $status[connected], html_br() );
+       foreach ($status[errors] as $error) {
+         $statusbox->add( html_span('boxlabel_yellow', "Error($error[code]):"), $error[message], html_br() );
+       }
+     }
+     if (is_array($result)) {
+       $good = 1;
+     } else {
+       $message = get_class($this) . "->_loadRemote: Error while trying to talk to remote side. Please check wire, socket or api.";
+       logp($message, PEAR_LOG_CRIT);
+       if (constants::get('VERBOSE')) {
+         $statusbox->add( html_span('boxlabel_yellow', "Critical:"), $message, html_br() );
+       }
+     }
+     if ($good && sizeof($result)) {
        // FIXME: this is dangerous!
        if ($_GET[debug]) {
-Line 473 
 class DesignPattern_RemoteProxy extends
+Line 549 
 class DesignPattern_RemoteProxy extends
        $this->_saveProxy();
        //print "oid: $this->objectId<br>";
        $this->flushState();
      } else {
-       //print "Error in _loadRemote!!!<br>";
+       if (constants::get('VERBOSE')) {
-       logp(get_class($this) . "->_loadRemote: error while trying to talk to remote side", PEAR_LOG_CRIT);
+         print $style->render();
+         print $statusbox->render();
+       } else {
+         foreach ($status[errors] as $error) {
+           print Dumper($error);
+         }
+       }
      }
    }

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