/[cvs]/nfo/php/libs/org.netfrag.glib/DesignPattern/Bridge.php
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revision 1.2 by joko, Mon Feb 3 05:01:27 2003 UTC revision 1.4 by joko, Sun Feb 9 17:07:53 2003 UTC
# Line 3  Line 3 
3  //  $Id$  //  $Id$
4  // ---------------------------------------------------------------------------  // ---------------------------------------------------------------------------
5  //  $Log$  //  $Log$
6    //  Revision 1.4  2003/02/09 17:07:53  joko
7    //  + minor update related to new log level constants
8    //  + generic argument merger to show full constructor args
9    //
10    //  Revision 1.3  2003/02/03 14:46:57  joko
11    //  + wrapped calls to available initializers (constructors, declared startup methods)
12    //  - moved logger-code to DesignPattern::Logger
13    //
14  //  Revision 1.2  2003/02/03 05:01:27  joko  //  Revision 1.2  2003/02/03 05:01:27  joko
15  //  + now attributes can get passed in to the constructors  //  + now attributes can get passed in to the constructors
16  //  //
# Line 15  Line 23 
23  class DesignPattern_Bridge extends DesignPattern_Logger {  class DesignPattern_Bridge extends DesignPattern_Logger {
24    
25    function DesignPattern_Bridge($classname, $attributes = null) {    function DesignPattern_Bridge($classname, $attributes = null) {
26        //print "init_bridge!<br>";
27      //return $this->_mkInstance($classname, $attributes);      //return $this->_mkInstance($classname, $attributes);
28        //$this->_init_logger("../core/var/log/logfile.txt", 1);
29        //parent::constructor();
30      $this = $this->_mkInstance($classname, $attributes);      $this = $this->_mkInstance($classname, $attributes);
31        //parent::constructor();
32    //    $this->_init_logger("../core/var/log/logfile.txt", 1);
33        //print Dumper($this);
34        //parent::DesignPattern_Logger();
35      //return $this;      //return $this;
36    }    }
37    
38    function &_mkInstance($classname, $attributes = null) {    function &_mkInstance($classname, $attributes = null) {
39      $this->log( get_class($this) . "->_mkInstance( classname $classname )", LOG_DEBUG );      parent::constructor();
40        $this->log( get_class($this) . "->_mkInstance( classname $classname )" );
41      if (isset($attributes)) {      if (isset($attributes)) {
42        $instance = new $classname($attributes);  //print Dumper($attributes);
43    
44    /*
45          // pass single argument 1:1
46          if (count($attributes) == 1) {
47            $attributes_merged = $attributes[0];
48    
49          
50          
51          // pass hash 1:1
52          } elseif (is_hash($attributes)) {
53            $attributes_merged = $attributes;
54    
55          } else {
56            $attributes_merged = $attributes;
57          }
58    */
59    
60        $args_pass = array();
61        for ($i=0; $i<=count($attributes); $i++) {
62          array_push($args_pass, '$attributes[' . $i . ']');
63        }
64    
65        $arg_string = join(', ', $args_pass);
66    
67    /*
68          // merge entries of numerical indexed arrays together into one hash
69          } else {
70            $attributes_merged = array();
71            foreach ($attributes as $entry) {
72              $attributes_merged = array_merge($attributes_merged, $entry);
73            }
74          }
75    */
76    
77    //print Dumper($attributes_merged);
78    //print Dumper($attributes);
79          //$instance = new $classname($attributes_merged);
80          //$instance = new $classname($attributes[0]);
81          $evalstr = 'return new $classname(' . $arg_string . ');';
82          $instance = eval($evalstr);
83          //print $evalstr . "<br>";
84      } else {      } else {
85        $instance = new $classname;        $instance = new $classname;
86      }      }
87        //$this->log("ok");
88      return $instance;      return $instance;
89    }    }
90    
91    function _mkEmbeddedObjects($args) {    function _mkEmbeddedObjects($args) {
92    
93      $this->log( get_class($this) . "->_mkEmbeddedObjects()", LOG_DEBUG );      $this->log( get_parent_class($this) . "->_mkEmbeddedObjects( parent='" . $args[parent_name] . "' )", PEAR_LOG_INFO );
94        //$this->log( get_parent_class($this) . "->_init_helpers: instantiating helper objects below '" . get_class($this) . "::'" );
95    
96    //print Dumper($args);
97    
98      foreach ($args[class_names] as $classname) {      foreach ($args[class_names] as $classname) {
99                
# Line 60  class DesignPattern_Bridge extends Desig Line 121  class DesignPattern_Bridge extends Desig
121        // helper gets reference to ourselves as a parent        // helper gets reference to ourselves as a parent
122        $this->$objectname->$args[parent_name] = &$this;        $this->$objectname->$args[parent_name] = &$this;
123        
124          $this->_call_initializer($objectname, 'constructor');
125        if ( $method = $args[run] ) {        if ( $method = $args[run] ) {
126          if (method_exists($this->$objectname, $method)) {          $this->_call_initializer($objectname, $method);
           $this->log( get_class($this) . "->_mkEmbeddedObjects: calling method \$this->" . $objectname . "->$method()", LOG_DEBUG );  
           $this->$objectname->$method();  
         }  
127        }        }
128            
129      }      }
130        
131    }    }
132    
133    function _init_logger() {    function _call_initializer($objectname, $method) {
134      // Log      if (method_exists($this->$objectname, $method)) {
135        // valid logging-levels are:        $this->log( get_class($this) . "->_call_initializer: autocalling \$this->" . $objectname . "->$method()" );
136        // LOG_EMERG, LOG_ALERT, LOG_CRIT,        $this->$objectname->$method();
137        // LOG_ERR, LOG_WARNING, LOG_NOTICE, LOG_INFO, and LOG_DEBUG.      }
       // The default is LOG_INFO.  
       $logfile = 'log.txt';  
       $logfile = $this->config[path][base] . "core/var/log/logfile.txt";  
   
       // TODO: maybe include userid here?  
       //$log_ident = substr(session_id(), 10, 6);  
       $log_ident = session_id();  
       if ($this->config[mode][LOG]) {  
         $this->logger = &Log::singleton('file', $logfile, $log_ident);  
         //$site->logger = new Log_file($logfile, $log_ident);  
       } else {  
         $this->logger = &Log::singleton('dummy', $logfile, $log_ident);  
       }  
       $this->log( get_class($this) . "->_init_logger: ready\t\t--------------------", LOG_DEBUG );  
138    }    }
139    
140        
141  }  }
142  ?>  ?>
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