/[cvs]/nfo/php/libs/org.netfrag.glib/DataSource/Locator.php
ViewVC logotype

Diff of /nfo/php/libs/org.netfrag.glib/DataSource/Locator.php

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.1 by joko, Wed Mar 5 12:04:37 2003 UTC revision 1.32 by joko, Fri Apr 4 21:21:16 2003 UTC
# Line 1  Line 1 
1  <?php  <?php
2  /**  /**
  * --- @about  
  *  
3   * This file contains the DataSource::Locator class.   * This file contains the DataSource::Locator class.
4     *
5   * It acts as a container for DataSource connection   * It acts as a container for DataSource connection
6   * metadata. Think of it as an enhanced dsn.   * metadata. Think of it as an enhanced dsn.
7   *   *
8   * It gets used by DataSource::GenericDataSource   * It gets used by DataSource::Generic
9   * to be informed about the most important stuff it   * to be informed about the most important stuff it
10   * has to do.   * has to do.
11   *   *
  *  
12   * @author Andreas Motl <andreas.motl@ilo.de>   * @author Andreas Motl <andreas.motl@ilo.de>
13   * @package org.netfrag.glib   * @package org.netfrag.glib
14   * @module DataSource::Locator   * @name DataSource::Locator
15     *
16   *   *
17   */   */
18    
19    
20  /**  /**
21     * <b>Cvs-Log:</b>
22     *
23     * <pre>
24   * $Id$   * $Id$
25   *   *
26   * $Log$   * $Log$
27     * Revision 1.32  2003/04/04 21:21:16  joko
28     * new attributes in locator hash for rpc-connections: USER and PASS
29     *
30     * Revision 1.31  2003/03/28 06:46:00  joko
31     * new helper: 'function get_call'
32     *
33     * Revision 1.30  2003/03/28 03:02:50  joko
34     * propagating parameters for rpc-debugging and options here
35     *
36     * Revision 1.29  2003/03/18 02:01:47  joko
37     * minor update (mungling with phpDocumentor again)
38     *
39     * Revision 1.28  2003/03/18 01:52:33  joko
40     * minor update (mungling with phpDocumentor again)
41     *
42     * Revision 1.27  2003/03/11 16:44:59  joko
43     * + fixed metadata for phpDocumentor
44     *
45     * Revision 1.26  2003/03/11 16:41:47  joko
46     * + fixed metadata for phpDocumentor
47     *
48     * Revision 1.25  2003/03/11 16:28:25  joko
49     * + fixed metadata for phpDocumentor
50     *
51     * Revision 1.24  2003/03/11 04:49:25  joko
52     * + fixed metadata for phpDocumentor
53     *
54     * Revision 1.23  2003/03/11 04:15:01  joko
55     * + fixed metadata for phpDocumentor
56     *
57     * Revision 1.22  2003/03/11 04:03:54  joko
58     * + fixed metadata for phpDocumentor
59     *
60     * Revision 1.21  2003/03/11 03:23:36  joko
61     * + fixed metadata for phpDocumentor
62     *
63     * Revision 1.20  2003/03/11 03:17:37  joko
64     * + fixed metadata for phpDocumentor
65     *
66     * Revision 1.19  2003/03/11 03:05:01  joko
67     * + fixed metadata for phpDocumentor
68     *
69     * Revision 1.18  2003/03/11 02:42:51  joko
70     * + fixed metadata for phpDocumentor
71     *
72     * Revision 1.17  2003/03/11 02:34:55  joko
73     * + fixed metadata for phpDocumentor
74     *
75     * Revision 1.16  2003/03/11 02:28:12  joko
76     * + fixed metadata for phpDocumentor
77     *
78     * Revision 1.15  2003/03/11 02:23:03  joko
79     * + fixed metadata for phpDocumentor
80     *
81     * Revision 1.14  2003/03/11 02:14:24  joko
82     * + fixed metadata for phpDocumentor
83     *
84     * Revision 1.13  2003/03/11 02:04:37  joko
85     * + fixed metadata for phpDocumentor
86     *
87     * Revision 1.12  2003/03/11 01:10:00  joko
88     * + fixed metadata for phpDocumentor
89     *
90     * Revision 1.11  2003/03/11 00:12:49  joko
91     * + fixed metadata for phpDocumentor
92     *
93     * Revision 1.10  2003/03/10 23:25:03  joko
94     * + fixed metadata for phpDocumentor
95     *
96     * Revision 1.9  2003/03/10 22:31:55  joko
97     * + fixed metadata for phpDocumentor
98     *
99     * Revision 1.8  2003/03/09 15:50:36  joko
100     * + additional metadata for Autodia
101     *
102     * Revision 1.7  2003/03/05 17:13:16  joko
103     * updated docu (phpDocumentor testing....)
104     *
105     * Revision 1.6  2003/03/05 16:10:08  joko
106     * updated docu (phpDocumentor testing....)
107     *
108     * Revision 1.5  2003/03/05 15:40:39  joko
109     * updated docu (phpDocumentor testing....)
110     *
111     * Revision 1.4  2003/03/05 15:26:23  joko
112     * updated docu (phpDocumentor testing....)
113     *
114     * Revision 1.3  2003/03/05 15:21:54  joko
115     * updated docu (phpDocumentor testing....)
116     *
117     * Revision 1.2  2003/03/05 15:01:10  joko
118     * updated docu
119     *
120   * Revision 1.1  2003/03/05 12:04:37  joko   * Revision 1.1  2003/03/05 12:04:37  joko
121   * + initial commit   * + initial commit
122     * </pre>
123   *   *
124   *   *
125   */   */
126    
127  /**  /**
128   * --- @description   * It helps DataSource::Generic working in different "operation modes".
  *  
  * --- It helps GenericDataSource working in different "operation modes".  
  *  
  *    o Pass-Through-Reference: php Object will get passed through all layers  
  *    o Pass-Through-Memory: reference to a memory area will get used  
  *    x Build-Locator: build locator from datasource-type and adapter-type  
  *    o Use-Locator: directly use DataSource::Locator instance passed in  
  *    o Merge-Locators: merge metadata of two or more DataSource::Locator instances  
  *    o Build-AutoLocator: use global constants making up our metadata  
  *  
  *  
  * --- It can/should contain (flexible, just some parameters are required for each operation mode)  
  *  
  *    o an oldschool "dsn"-string (e.g. for rdbms-connection via PEAR)  
  *    x name of a Proxy module to use to *wrap/hide* the connection/transport-layer  
  *       (e.g. DataSource::Proxy::XMLRPC via DesignPattern::RemoteProxy)  
  *    x metadata (a hash) directly describing *where* to connect to (e.g. 'Host', 'Port')  
  *    o an instance of an already instantiated arbitrary datasource handler (e.g. 'source')  
  *       this will get propagated (pass-through-mode)  
  *    x a datasource-type (of 'rpc|mysql|csv-file|xml-file')  
  *        this will be mapped to a module name and used as a *Proxy*  
  *        by the GenericDataSource at runtime  
  *    x an adapter-type (of 'phpHtmlLib|pear')  
  *        this will be mapped to a module name and used as an *Adapter*  
  *        by the GenericDataSource at runtime  
  *    o names of global constants where to find these informations  
  *    o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')  
  *  
  *  
  * --- It can do  
  *    x builds a larger locator from a minimum of information passed in via constructor-arguments  
  *    o direct fallback mode to some predefined constant names if locator is empty and above method fails  
  *    o direct fallback mode to some predefined values if just *everything* fails  
129   *   *
130     * <b>Modes:</b> (these are proposals, more or less...)
131     * o Pass-Through-Reference: php Object will get passed through all layers
132     * o Pass-Through-Memory: reference to a memory area will get used
133     * + (x) Build-Locator: build locator from datasource-type and adapter-type
134     * o Use-Locator: directly use DataSource::Locator instance passed in
135     * o Merge-Locators: merge metadata of two or more DataSource::Locator instances
136     * o Build-AutoLocator: use global constants making up our metadata
137     *
138     * <b>It can/should contain:</b>
139     * (flexible, just some parameters are required for each operation mode)
140     * o an oldschool "dsn"-string (e.g. for rdbms-connection via PEAR)
141     * + (x) name of a Proxy module to use to *wrap/hide* the connection/transport-layer
142     *   (e.g. DataSource::Proxy::XMLRPC via DesignPattern::RemoteProxy)
143     * + (x) metadata (a hash) directly describing *where* to connect to (e.g. 'Host', 'Port')
144     * o an instance of an already instantiated arbitrary datasource handler (e.g. 'source')
145     *   this will get propagated (pass-through-mode)
146     * o a datasource-type (of 'rpc|mysql|csv-file|xml-file')
147     *   this will be mapped to a module name and used as a *Proxy*
148     *   by the DataSource::Generic at runtime
149     * + (x) an adapter-type (of 'phpHtmlLib|pear')
150     *   this will be mapped to a module name and used as an *Adapter*
151     *   by the DataSource::Generic at runtime
152     * o names of global constants where to find these informations
153     * o datasource-type ('rpc|csv-file|...') <-> datasource-family ('orm|rdbms|odbms')
154     *
155     * <b>It can do:</b>
156     * - builds a larger locator from a minimum of information passed in via constructor-arguments
157     * - direct fallback mode to some predefined constant names if locator is empty and above method fails
158     * - direct fallback mode to some predefined values if just *everything* fails
159   *   *
160   * --- How to use?   * <b>How to use?</b>
161   *   *
162   * Pass an array holding "locator metadata" to the constructor.   * Pass an array holding "locator metadata" to the constructor.
163   * This module takes care of the rest.   * This module takes care of the rest.
  *  
164   * Pass an array to the constructor: (e.g.)   * Pass an array to the constructor: (e.g.)
165   *   *
166   *  1. for doing rpc-calls....   * <pre>
167     *    // 1. for doing rpc-calls....
168   *    $locator = array(   *    $locator = array(
169   *      datasource_type => 'rpc',   *      datasource_type => 'rpc',
170   *      [adapter_type => 'phpHtmlLib',]   *      [adapter_type => 'phpHtmlLib',]
171   *      metadata => array( Host => 'localhost', Port => '8765' ),   *      metadata => array( Host => 'localhost', Port => '8765' ),
172   *    );   *    );
173   *    $source = new GenericDataSource($locator);   *    $source = ne w DataSource::Generic($locator);
174   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
175   *   * </pre>
176   *  2. [proposal] for common/oldschool datahandles....   * <pre>
177     *    // 2. [proposal] for common/oldschool datahandles....
178   *    $locator = array(   *    $locator = array(
179   *      dsn => 'known dsn markup',   *      dsn => 'known dsn markup',
180   *    );   *    );
181   *    $source = new GenericDataSource($locator);   *    $source = ne w DataSource::Generic($locator);
182   *    $this->set_data_source( &$source );   *    $this->set_data_source( &$source );
183     * </pre>
184   *   *
185   *   *
186   *   *
187   * @author Andreas Motl <andreas.motl@ilo.de>   * @author Andreas Motl <andreas.motl@ilo.de>
188     * @link http://www.netfrag.org/~joko/
189   * @copyright (c) 2003 - All Rights reserved.   * @copyright (c) 2003 - All Rights reserved.
  * @license GNU LGPL (GNU Lesser General Public License)  
190   *   *
191   * @author-url http://www.netfrag.org/~joko/   * @license GNU LGPL (GNU Lesser General Public License)
192   * @license-url http://www.gnu.org/licenses/lgpl.txt   * @link http://www.gnu.org/licenses/lgpl.txt
193   *   *
  * @author Andreas Motl <andreas.motl@ilo.de>  
194   * @package org.netfrag.glib   * @package org.netfrag.glib
195   * @module DataSource::Locator   * @subpackage DataSource
196     * @name DataSource::Locator
197   *   *
198   */   */
   
   
199  class DataSource_Locator {  class DataSource_Locator {
200    
201    /**    /**
202      * This var holds the locator metadata hash      * This var holds the locator metadata hash,
203        *
204      * which is built from some predefined rules      * which is built from some predefined rules
205      * using metadata from $_options and some      * using metadata from $_options and some
206      * other presets.      * other presets.
207      *      *
208      * See '_buildLocator' which acts as a dispatcher      * See {@link build}, which acts as a dispatcher
209      * depending on $_options[datasource].      * depending on $_options[datasource]. <br>
210      * (main dispatching level)      * (main dispatching level)
211      *      *
212      * The structure of a full blown locator looks like this:      * <br>
213      *      *
214        * The structure of a full blown locator looks like this:
215        * <code>
216      *  $locator = array(      *  $locator = array(
217      *    type => '<your type specifying the datasource-type>',      *    type => '<your type specifying the datasource-type>',
218      *    metadata => array(      *    metadata => array(
# Line 124  class DataSource_Locator { Line 220  class DataSource_Locator {
220      *    ),      *    ),
221      *    [dsn => '<your dsn markup>'],      *    [dsn => '<your dsn markup>'],
222      *  );      *  );
223        * </code>
224      *      *
225      * Example 1 - data is inside a rdbms, using a dsn to connect to it:      * Example 1 - data is inside a rdbms, using a dsn to connect to it:
226        * <code>
227      *  $locator = array(      *  $locator = array(
228      *    dsn => 'mysql://username:password@localhost/database',      *    dsn => 'mysql://username:password@localhost/database',
229      *  );      *  );
230        * </code>
231      *      *
232      * Example 2 - data is inside an odbms, reachable by doing remote procedure calls (rpc):      * Example 2 - data is inside an odbms, reachable by doing remote procedure calls (rpc):
233        * <code>
234      *  $locator = array(      *  $locator = array(
235      *    type => 'rpc',      *    type => 'rpc',
236      *    metadata => array(      *    metadata => array(
# Line 139  class DataSource_Locator { Line 239  class DataSource_Locator {
239      *      Port => '8765',      *      Port => '8765',
240      *    )      *    )
241      *  );      *  );
242        * </code>
243        *
244        * @deprecated
245      *      *
246      */      */
247            var $_locator_metadata = NULL;
     //var $_locator_metadata = NULL;  
248    
249    
250          /**     /**
251           * This var holds the arguments passed in to the constructor.      * This var holds the arguments passed in to the constructor.
252           * We will try to build full blown locator metadata information from that.      * We will try to build full blown locator metadata information from that.
253           *      *
254           */      * @deprecated
255          //var $_in = NULL;      *
256        */
257        var $_in = NULL;
258    
259          /**     /**
260           * This var holds the locator metadata informations inside      * This var holds the locator metadata informations inside
261           * a single hash. This is returned from '->get()'.      * a single hash. This is returned from '->get()'.
262           *      *
263           */      * @deprecated
264          //var $_out = NULL;      *
265        */
266        var $_out = NULL;
267    
268    
269          /**          /**
# Line 171  class DataSource_Locator { Line 277  class DataSource_Locator {
277      // name of an Adapter module      // name of an Adapter module
278      var $_adapter_type;      var $_adapter_type;
279            
280      // additional information required (passed on to the Proxy by GenericDataSource)      // additional information required (passed on to the Proxy by DataSource::Generic)
281      var $_metadata = array();      var $_metadata = array();
282            
283      //var $_dsn;      //var $_dsn;
# Line 181  class DataSource_Locator { Line 287  class DataSource_Locator {
287           * The constructor is used to pass in the           * The constructor is used to pass in the
288           * locator metadata hash.           * locator metadata hash.
289           *           *
290           * @param LocatorMetadataHash array - layout: array( type => '', metadata => '', dsn => '' )           * @param object(DataSource::Locator)|hash optional: a &$locator instance
          * @param Query array - layout: array( type => '', metadata => '', dsn => '' )  
291           */           */
292          function DataSource_Locator() {          function DataSource_Locator() {
293        $args_multi = func_get_args();        $args_multi = func_get_args();
# Line 258  class DataSource_Locator { Line 363  class DataSource_Locator {
363                    
364          /**          /**
365       * Set the locator metadata hash we will feed *partly*       * Set the locator metadata hash we will feed *partly*
366       * to an encapsulated Data::Driver::Proxy instance.       * to an encapsulated Data::Driver::Proxy instance
367       *       *
368       * @param LocatorMetadataHash array -       * @param LocatorMetadataHash array -
369       *       *
# Line 269  class DataSource_Locator { Line 374  class DataSource_Locator {
374    
375      function &get_metadata() {      function &get_metadata() {
376          //return ($this->_out);          //return ($this->_out);
377            //print Dumper($this->_metadata);
378          return $this->_metadata;          return $this->_metadata;
379      }      }
380    
381    
382    function build( ) {    function build( ) {
383    
384        //print "locator - build!<br/>";
385            
386      // trace      // trace
387        //print Dumper($this);        //print Dumper($this);
388        
389      $good = 0;      $good = 0;
390      switch ($this->_datasource_type) {      switch ($this->_datasource_type) {
391          
392          // TODO: dispatch Host, Port, User and Pass by transport here!!!
393        case 'rpc':        case 'rpc':
394          // get rpc connection information from global constants          // get rpc connection information from global constants
395          $metadata = array(          $metadata = array(
396            //package => 'Data::Driver::Proxy',            //package => 'Data::Driver::Proxy',
397            //package => 'DataSource::Proxy::XMLRPC',            //package => 'DataSource::Proxy::XMLRPC',
398            //package => 'DataSource::GenericDataSource',            //package => 'DataSource::Generic',
399            //package => 'DesignPattern::RemoteProxy',            //package => 'DesignPattern::RemoteProxy',
400            Host => RPC_HOSTNAME,            'Host' => RPC_HOSTNAME,
401            Port => RPC_PORT,            'Port' => RPC_PORT,
402              'DEBUG' => constants::get('RPC_DEBUG'),
403              'TRACE' => constants::get('RPC_TRACE'),
404              'DISCONNECT_ON_ERROR' => constants::get('RPC_DISCONNECT_ON_ERROR'),
405              // FIXME!!! 'ws_admin' is hardcoded here!!!
406              'USER' => $_SESSION[ws_admin][user],
407              'PASS' => $_SESSION[ws_admin][pass],
408          );          );
409          $good = 1;          $good = 1;
410          break;          break;
411      }      }
412            
413      if ($good) {      if ($good) {
414    
415          //print Dumper($metadata);
416                
417        // V1:        // V1:
418        /*        /*
# Line 326  class DataSource_Locator { Line 444  class DataSource_Locator {
444      return 1;      return 1;
445    }    }
446    
447          function get_call() {
448        return array(
449          method => $this->_call[_method],
450          args => $this->_call[_arguments],
451        );
452      }
453    
454  }  }
455    
456  ?>  ?>

Legend:
Removed from v.1.1  
changed lines
  Added in v.1.32

MailToCvsAdmin">MailToCvsAdmin
ViewVC Help
Powered by ViewVC 1.1.26 RSS 2.0 feed