/[cvs]/nfo/php/libs/org.netfrag.glib/DesignPattern/Bridge.php
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revision 1.3 by joko, Mon Feb 3 14:46:57 2003 UTC revision 1.5 by joko, Thu Feb 27 18:09:56 2003 UTC
# Line 3  Line 3 
3  //  $Id$  //  $Id$
4  // ---------------------------------------------------------------------------  // ---------------------------------------------------------------------------
5  //  $Log$  //  $Log$
6    //  Revision 1.5  2003/02/27 18:09:56  joko
7    //  mungled mechanism to shift in and pass on arguments
8    //
9    //  Revision 1.4  2003/02/09 17:07:53  joko
10    //  + minor update related to new log level constants
11    //  + generic argument merger to show full constructor args
12    //
13  //  Revision 1.3  2003/02/03 14:46:57  joko  //  Revision 1.3  2003/02/03 14:46:57  joko
14  //  + wrapped calls to available initializers (constructors, declared startup methods)  //  + wrapped calls to available initializers (constructors, declared startup methods)
15  //  - moved logger-code to DesignPattern::Logger  //  - moved logger-code to DesignPattern::Logger
# Line 18  Line 25 
25    
26  class DesignPattern_Bridge extends DesignPattern_Logger {  class DesignPattern_Bridge extends DesignPattern_Logger {
27    
28    function DesignPattern_Bridge($classname, $attributes = null) {    function DesignPattern_Bridge() {
29    
30        $arg_list = func_get_args();
31        $classname = array_shift($arg_list);
32        
33        // expand single argument
34        if (count($arg_list) == 1) {
35          $arg_list = $arg_list[0];
36        }
37        $attributes = &$arg_list;
38    
39        //print Dumper($attributes);
40    
41      //print "init_bridge!<br>";      //print "init_bridge!<br>";
42      //return $this->_mkInstance($classname, $attributes);      //return $this->_mkInstance($classname, $attributes);
43      //$this->_init_logger("../core/var/log/logfile.txt", 1);      //$this->_init_logger("../core/var/log/logfile.txt", 1);
# Line 33  class DesignPattern_Bridge extends Desig Line 52  class DesignPattern_Bridge extends Desig
52    
53    function &_mkInstance($classname, $attributes = null) {    function &_mkInstance($classname, $attributes = null) {
54      parent::constructor();      parent::constructor();
55      $this->log( get_class($this) . "->_mkInstance( classname $classname )", LOG_DEBUG );      $this->log( get_class($this) . "->_mkInstance( classname $classname )" );
56      if (isset($attributes)) {      if (isset($attributes)) {
57        $instance = new $classname($attributes);  //print Dumper($attributes);
58    
59    /*
60          // pass single argument 1:1
61          if (count($attributes) == 1) {
62            $attributes_merged = $attributes[0];
63    
64          
65          
66          // pass hash 1:1
67          } elseif (is_hash($attributes)) {
68            $attributes_merged = $attributes;
69    
70          } else {
71            $attributes_merged = $attributes;
72          }
73    */
74    
75        $args_pass = array();
76        for ($i=0; $i<=count($attributes); $i++) {
77          array_push($args_pass, '$attributes[' . $i . ']');
78        }
79    
80        $arg_string = join(', ', $args_pass);
81    
82    /*
83          // merge entries of numerical indexed arrays together into one hash
84          } else {
85            $attributes_merged = array();
86            foreach ($attributes as $entry) {
87              $attributes_merged = array_merge($attributes_merged, $entry);
88            }
89          }
90    */
91    
92    //print Dumper($attributes_merged);
93    //print Dumper($attributes);
94          //$instance = new $classname($attributes_merged);
95          //$instance = new $classname($attributes[0]);
96          $evalstr = 'return new $classname(' . $arg_string . ');';
97          $instance = eval($evalstr);
98          //print $evalstr . "<br>";
99      } else {      } else {
100        $instance = new $classname;        $instance = new $classname;
101      }      }
102      //$this->log("ok", LOG_DEBUG);      //$this->log("ok");
103      return $instance;      return $instance;
104    }    }
105    
106    function _mkEmbeddedObjects($args) {    function _mkEmbeddedObjects($args) {
107    
108      $this->log( get_parent_class($this) . "->_mkEmbeddedObjects( parent='" . $args[parent_name] . "' )", LOG_DEBUG );      $this->log( get_parent_class($this) . "->_mkEmbeddedObjects( parent='" . $args[parent_name] . "' )", PEAR_LOG_INFO );
109      //$this->log( get_parent_class($this) . "->_init_helpers: instantiating helper objects below '" . get_class($this) . "::'", LOG_DEBUG );      //$this->log( get_parent_class($this) . "->_init_helpers: instantiating helper objects below '" . get_class($this) . "::'" );
110    
111    //print Dumper($args);
112    
113      foreach ($args[class_names] as $classname) {      foreach ($args[class_names] as $classname) {
114                
# Line 85  class DesignPattern_Bridge extends Desig Line 147  class DesignPattern_Bridge extends Desig
147    
148    function _call_initializer($objectname, $method) {    function _call_initializer($objectname, $method) {
149      if (method_exists($this->$objectname, $method)) {      if (method_exists($this->$objectname, $method)) {
150        $this->log( get_class($this) . "->_call_initializer: autocalling \$this->" . $objectname . "->$method()", LOG_DEBUG );        $this->log( get_class($this) . "->_call_initializer: autocalling \$this->" . $objectname . "->$method()" );
151        $this->$objectname->$method();        $this->$objectname->$method();
152      }      }
153    }    }
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