AroundInvokeNode


1   /*
2    * The contents of this file are subject to the terms 
3    * of the Common Development and Distribution License 
4    * (the License).  You may not use this file except in
5    * compliance with the License.
6    * 
7    * You can obtain a copy of the license at 
8    * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9    * glassfish/bootstrap/legal/CDDLv1.0.txt.
10   * See the License for the specific language governing 
11   * permissions and limitations under the License.
12   * 
13   * When distributing Covered Code, include this CDDL 
14   * Header Notice in each file and include the License file 
15   * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
16   * If applicable, add the following below the CDDL Header, 
17   * with the fields enclosed by brackets [] replaced by
18   * you own identifying information: 
19   * "Portions Copyrighted [year] [name of copyright owner]"
20   * 
21   * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22   */
23  
24  package com.sun.enterprise.deployment.node.ejb;
25  
26  import java.util.Iterator  ;
27  import java.util.Map  ;
28  import java.util.Set  ;
29  import org.w3c.dom.Node  ;
30  
31  import com.sun.enterprise.deployment.LifecycleCallbackDescriptor;
32  import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
33  import com.sun.enterprise.deployment.xml.EjbTagNames;
34  import com.sun.enterprise.deployment.EjbInterceptor;
35  import com.sun.enterprise.deployment.EjbDescriptor;
36  import com.sun.enterprise.deployment.Descriptor;
37  
38  
39  /**
40   * This node handles all information relative to injection-complete xml tag
41   */
42  public class AroundInvokeNode extends DeploymentDescriptorNode {
43  
44      private LifecycleCallbackDescriptor descriptor;
45      
46     /**
47      * @return the descriptor instance to associate with this XMLNode
48      */       
49      public Object   getDescriptor() {
50          
51         if (descriptor==null) {
52              descriptor = new LifecycleCallbackDescriptor();
53              Descriptor parentDesc = 
54                  (Descriptor)getParentNode().getDescriptor();
55              if (parentDesc instanceof EjbDescriptor) {
56                  EjbDescriptor ejbDesc = (EjbDescriptor)parentDesc;
57                  descriptor.setDefaultLifecycleCallbackClass(
58                      ejbDesc.getEjbClassName());
59              } else if (parentDesc instanceof EjbInterceptor) {
60                  EjbInterceptor ejbInterceptor = 
61                      (EjbInterceptor)parentDesc;
62                  descriptor.setDefaultLifecycleCallbackClass(
63                      ejbInterceptor.getInterceptorClassName());
64              } 
65          }
66          return descriptor;
67      }    
68      
69      /**
70       * all sub-implementation of this class can use a dispatch table to map xml element to
71       * method name on the descriptor class for setting the element value. 
72       *  
73       * @return the map with the element name as a key, the setter method as a value
74       */    
75      protected Map   getDispatchTable() {
76          Map   table = super.getDispatchTable();
77          table.put(EjbTagNames.AROUND_INVOKE_CLASS_NAME, 
78              "setLifecycleCallbackClass");
79          table.put(EjbTagNames.AROUND_INVOKE_METHOD_NAME, 
80              "setLifecycleCallbackMethod");
81          return table;
82      }    
83      
84      /**
85       * write the descriptor class to a DOM tree and return it
86       *
87       * @param parent node in the DOM tree 
88       * @param node name for the root element of this xml fragment      
89       * @param the descriptor to write
90       * @return the DOM tree top node
91       */
92      public Node   writeDescriptor(Node   parent, String   nodeName, LifecycleCallbackDescriptor descriptor) {
93          Node   myNode = appendChild(parent, nodeName);
94          appendTextChild(myNode, EjbTagNames.AROUND_INVOKE_CLASS_NAME, 
95              descriptor.getLifecycleCallbackClass());                        
96          appendTextChild(myNode, EjbTagNames.AROUND_INVOKE_METHOD_NAME, 
97              descriptor.getLifecycleCallbackMethod());                        
98          return myNode;
99      }
100 }
101
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