1. /*

  2.  * ====================================================================

  3.  *

  4.  * The Apache Software License, Version 1.1

  5.  *

  6.  * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights

  7.  * reserved.

  8.  *

  9.  * Redistribution and use in source and binary forms, with or without

  10.  * modification, are permitted provided that the following conditions

  11.  * are met:

  12.  *

  13.  * 1. Redistributions of source code must retain the above copyright

  14.  *    notice, this list of conditions and the following disclaimer.

  15.  *

  16.  * 2. Redistributions in binary form must reproduce the above copyright

  17.  *    notice, this list of conditions and the following disclaimer in

  18.  *    the documentation and/or other materials provided with the

  19.  *    distribution.

  20.  *

  21.  * 3. The end-user documentation included with the redistribution, if

  22.  *    any, must include the following acknowlegement:

  23.  *       "This product includes software developed by the

  24.  *        Apache Software Foundation (http://www.apache.org/)."

  25.  *    Alternately, this acknowlegement may appear in the software itself,

  26.  *    if and wherever such third-party acknowlegements normally appear.

  27.  *

  28.  * 4. The names "The Jakarta Project", "Commons", and "Apache Software

  29.  *    Foundation" must not be used to endorse or promote products derived

  30.  *    from this software without prior written permission. For written

  31.  *    permission, please contact apache@apache.org.

  32.  *

  33.  * 5. Products derived from this software may not be called "Apache"

  34.  *    nor may "Apache" appear in their names without prior written

  35.  *    permission of the Apache Group.

  36.  *

  37.  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED

  38.  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

  39.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

  40.  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR

  41.  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

  42.  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

  43.  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

  44.  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

  45.  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

  46.  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT

  47.  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

  48.  * SUCH DAMAGE.

  49.  * ====================================================================

  50.  *

  51.  * This software consists of voluntary contributions made by many

  52.  * individuals on behalf of the Apache Software Foundation.  For more

  53.  * information on the Apache Software Foundation, please see

  54.  * <http://www.apache.org/>.

  55.  *

  56.  * [Additional notices, if required by prior licensing conditions]

  57.  *

  58.  */

  59. 

  60. 

  61. package org.apache.commons.modeler.modules;

  62. 

  63. import java.io.InputStream;

  64. import java.net.URL;

  65. import java.util.ArrayList;

  66. import java.util.List;

  67. 

  68. import org.apache.commons.digester.Digester;

  69. import org.apache.commons.logging.Log;

  70. import org.apache.commons.logging.LogFactory;

  71. import org.apache.commons.modeler.Registry;

  72. 

  73. public class MbeansDescriptorsDigesterSource extends ModelerSource

  74. {

  75.     private static Log log =

  76.             LogFactory.getLog(MbeansDescriptorsDigesterSource.class);

  77. 

  78.     Registry registry;

  79.     String location;

  80.     String type;

  81.     Object source;

  82.     List mbeans=new ArrayList();

  83. 

  84.     public void setRegistry(Registry reg) {

  85.         this.registry=reg;

  86.     }

  87. 

  88.     public void setLocation( String loc ) {

  89.         this.location=loc;

  90.     }

  91. 

  92.     /** Used if a single component is loaded

  93.      *

  94.      * @param type

  95.      */

  96.     public void setType( String type ) {

  97.        this.type=type;

  98.     }

  99. 

  100.     public void setSource( Object source ) {

  101.         this.source=source;

  102.     }

  103. 

  104.     public List loadDescriptors( Registry registry, String location,

  105.                                  String type, Object source)

  106.             throws Exception

  107.     {

  108.         setRegistry(registry);

  109.         setLocation(location);

  110.         setType(type);

  111.         setSource(source);

  112.         execute();

  113.         return mbeans;

  114.     }

  115. 

  116.     public void execute() throws Exception {

  117.         if( registry==null ) registry=Registry.getRegistry();

  118. 

  119.         InputStream stream=(InputStream)source;

  120. 

  121.         long t1=System.currentTimeMillis();

  122. 

  123.         Digester digester = new Digester();

  124.         digester.setNamespaceAware(false);

  125.         digester.setValidating(false);

  126.         URL url = registry.getClass().getResource

  127.                 ("/org/apache/commons/modeler/mbeans-descriptors.dtd");

  128.         digester.register

  129.                 ("-//Apache Software Foundation//DTD Model MBeans Configuration File",

  130.                         url.toString());

  131. 

  132.         // Push our registry object onto the stack

  133.         digester.push(mbeans);

  134. 

  135.         // Configure the parsing rules

  136.         digester.addObjectCreate

  137.                 ("mbeans-descriptors/mbean",

  138.                         "org.apache.commons.modeler.ManagedBean");

  139.         digester.addSetProperties

  140.                 ("mbeans-descriptors/mbean");

  141.         digester.addSetNext

  142.                 ("mbeans-descriptors/mbean",

  143.                         "add",

  144.                         "java.lang.Object");

  145. 

  146.         digester.addObjectCreate

  147.                 ("mbeans-descriptors/mbean/attribute",

  148.                         "org.apache.commons.modeler.AttributeInfo");

  149.         digester.addSetProperties

  150.                 ("mbeans-descriptors/mbean/attribute");

  151.         digester.addSetNext

  152.                 ("mbeans-descriptors/mbean/attribute",

  153.                         "addAttribute",

  154.                         "org.apache.commons.modeler.AttributeInfo");

  155. 

  156.         digester.addObjectCreate

  157.             ("mbeans-descriptors/mbean/attribute/descriptor/field",

  158.              "org.apache.commons.modeler.FieldInfo");

  159.         digester.addSetProperties

  160.             ("mbeans-descriptors/mbean/attribute/descriptor/field");

  161.         digester.addSetNext

  162.             ("mbeans-descriptors/mbean/attribute/descriptor/field",

  163.              "addField",

  164.              "org.apache.commons.modeler.FieldInfo");

  165. 

  166.         digester.addObjectCreate

  167.                 ("mbeans-descriptors/mbean/constructor",

  168.                         "org.apache.commons.modeler.ConstructorInfo");

  169.         digester.addSetProperties

  170.                 ("mbeans-descriptors/mbean/constructor");

  171.         digester.addSetNext

  172.                 ("mbeans-descriptors/mbean/constructor",

  173.                         "addConstructor",

  174.                         "org.apache.commons.modeler.ConstructorInfo");

  175. 

  176.         digester.addObjectCreate

  177.             ("mbeans-descriptors/mbean/constructor/descriptor/field",

  178.              "org.apache.commons.modeler.FieldInfo");

  179.         digester.addSetProperties

  180.             ("mbeans-descriptors/mbean/constructor/descriptor/field");

  181.         digester.addSetNext

  182.             ("mbeans-descriptors/mbean/constructor/descriptor/field",

  183.              "addField",

  184.              "org.apache.commons.modeler.FieldInfo");

  185. 

  186.         digester.addObjectCreate

  187.                 ("mbeans-descriptors/mbean/constructor/parameter",

  188.                         "org.apache.commons.modeler.ParameterInfo");

  189.         digester.addSetProperties

  190.                 ("mbeans-descriptors/mbean/constructor/parameter");

  191.         digester.addSetNext

  192.                 ("mbeans-descriptors/mbean/constructor/parameter",

  193.                         "addParameter",

  194.                         "org.apache.commons.modeler.ParameterInfo");

  195. 

  196.         digester.addObjectCreate

  197.             ("mbeans-descriptors/mbean/descriptor/field",

  198.              "org.apache.commons.modeler.FieldInfo");

  199.         digester.addSetProperties

  200.             ("mbeans-descriptors/mbean/descriptor/field");

  201.         digester.addSetNext

  202.             ("mbeans-descriptors/mbean/descriptor/field",

  203.              "addField",

  204.              "org.apache.commons.modeler.FieldInfo");

  205. 

  206.         digester.addObjectCreate

  207.                 ("mbeans-descriptors/mbean/notification",

  208.                         "org.apache.commons.modeler.NotificationInfo");

  209.         digester.addSetProperties

  210.                 ("mbeans-descriptors/mbean/notification");

  211.         digester.addSetNext

  212.                 ("mbeans-descriptors/mbean/notification",

  213.                         "addNotification",

  214.                         "org.apache.commons.modeler.NotificationInfo");

  215. 

  216.         digester.addObjectCreate

  217.             ("mbeans-descriptors/mbean/notification/descriptor/field",

  218.              "org.apache.commons.modeler.FieldInfo");

  219.         digester.addSetProperties

  220.             ("mbeans-descriptors/mbean/notification/descriptor/field");

  221.         digester.addSetNext

  222.             ("mbeans-descriptors/mbean/notification/descriptor/field",

  223.              "addField",

  224.              "org.apache.commons.modeler.FieldInfo");

  225. 

  226.         digester.addCallMethod

  227.                 ("mbeans-descriptors/mbean/notification/notification-type",

  228.                         "addNotifType", 0);

  229. 

  230.         digester.addObjectCreate

  231.                 ("mbeans-descriptors/mbean/operation",

  232.                         "org.apache.commons.modeler.OperationInfo");

  233.         digester.addSetProperties

  234.                 ("mbeans-descriptors/mbean/operation");

  235.         digester.addSetNext

  236.                 ("mbeans-descriptors/mbean/operation",

  237.                         "addOperation",

  238.                         "org.apache.commons.modeler.OperationInfo");

  239. 

  240.         digester.addObjectCreate

  241.             ("mbeans-descriptors/mbean/operation/descriptor/field",

  242.              "org.apache.commons.modeler.FieldInfo");

  243.         digester.addSetProperties

  244.             ("mbeans-descriptors/mbean/operation/descriptor/field");

  245.         digester.addSetNext

  246.             ("mbeans-descriptors/mbean/operation/descriptor/field",

  247.              "addField",

  248.              "org.apache.commons.modeler.FieldInfo");

  249. 

  250.         digester.addObjectCreate

  251.                 ("mbeans-descriptors/mbean/operation/parameter",

  252.                         "org.apache.commons.modeler.ParameterInfo");

  253.         digester.addSetProperties

  254.                 ("mbeans-descriptors/mbean/operation/parameter");

  255.         digester.addSetNext

  256.                 ("mbeans-descriptors/mbean/operation/parameter",

  257.                         "addParameter",

  258.                         "org.apache.commons.modeler.ParameterInfo");

  259. 

  260.         // Process the input file to configure our registry

  261.         try {

  262.             digester.parse(stream);

  263.         } catch (Exception e) {

  264.             log.error("Error digesting Registry data", e);

  265.             throw e;

  266.         }

  267.         long t2=System.currentTimeMillis();

  268. //        if( t2-t1 > 500 )

  269.         log.info("Loaded registry information (digester) " + ( t2 - t1 ) + " ms");

  270.     }

  271. }