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Java > Open Source Codes > org > jboss > axis > handlers > HandlerChainImpl


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 2001-2003 The Apache Software Foundation. All rights
6  * reserved.
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9  * modification, are permitted provided that the following conditions
10  * are met:
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13  * notice, this list of conditions and the following disclaimer.
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16  * notice, this list of conditions and the following disclaimer in
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24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
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27  * 4. The names "Axis" and "Apache Software Foundation" must
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54  */

55
56 package org.jboss.axis.handlers;
57
58 import org.jboss.axis.utils.ClassUtils;
59 import org.jboss.axis.utils.Messages;
60
61 import javax.xml.rpc.JAXRPCException JavaDoc;
62 import javax.xml.rpc.handler.Handler JavaDoc;
63 import javax.xml.rpc.handler.HandlerInfo JavaDoc;
64 import javax.xml.rpc.handler.MessageContext JavaDoc;
65 import javax.xml.rpc.handler.soap.SOAPMessageContext JavaDoc;
66 import javax.xml.rpc.soap.SOAPFaultException JavaDoc;
67 import java.util.ArrayList JavaDoc;
68 import java.util.List JavaDoc;
69 import java.util.Map JavaDoc;
70
71 /**
72  * Implementation of HandlerChain
73  */

74 public class HandlerChainImpl extends ArrayList JavaDoc implements javax.xml.rpc.handler.HandlerChain JavaDoc
75 {
76
77    private String JavaDoc[] _roles;
78
79    private int falseIndex = -1;
80
81    public String JavaDoc[] getRoles()
82    {
83       return _roles;
84    }
85
86    public void setRoles(String JavaDoc[] roles)
87    {
88       _roles = roles;
89    }
90
91    public void init(Map JavaDoc map)
92    {
93       // DO SOMETHING WITH THIS
94
}
95
96    protected List JavaDoc handlerInfos = new ArrayList JavaDoc();
97    String JavaDoc[] roles = null;
98
99    public HandlerChainImpl()
100    {
101    }
102
103    public HandlerChainImpl(List JavaDoc handlerInfos)
104    {
105       this.handlerInfos = handlerInfos;
106       for (int i = 0; i < handlerInfos.size(); i++)
107       {
108          add(newHandler(getHandlerInfo(i)));
109       }
110    }
111
112    public void addNewHandler(String JavaDoc className, Map JavaDoc config)
113    {
114       try
115       {
116          HandlerInfo JavaDoc handlerInfo = new HandlerInfo JavaDoc(ClassUtils.forName(className),
117                  config,
118                  null);
119          handlerInfos.add(handlerInfo);
120          add(newHandler(handlerInfo));
121       }
122       catch (Exception JavaDoc ex)
123       {
124          String JavaDoc messageText = Messages.getMessage("NoJAXRPCHandler00", className);
125          throw new JAXRPCException JavaDoc(messageText, ex);
126       }
127    }
128
129    public boolean handleFault(MessageContext JavaDoc _context)
130    {
131       SOAPMessageContext JavaDoc context = (SOAPMessageContext JavaDoc)_context;
132
133       for (int i = size() - 1; i >= 0; i--)
134       {
135          if (getHandlerInstance(i).handleFault(context) == false)
136          {
137             return false;
138          }
139       }
140       return true;
141    }
142
143    public boolean handleRequest(MessageContext JavaDoc _context)
144    {
145       SOAPMessageContext JavaDoc context = (SOAPMessageContext JavaDoc)_context;
146
147       falseIndex = -1;
148       for (int i = 0; i < size(); i++)
149       {
150          Handler JavaDoc currentHandler = getHandlerInstance(i);
151          try
152          {
153             if (currentHandler.handleRequest(context) == false)
154             {
155                falseIndex = i;
156                return false;
157             }
158          }
159          catch (SOAPFaultException JavaDoc sfe)
160          {
161             throw sfe;
162          }
163       }
164       return true;
165    }
166
167    public boolean handleResponse(MessageContext JavaDoc context)
168    {
169       int endIdx = size() - 1;
170       if (falseIndex != -1)
171       {
172          endIdx = falseIndex;
173       }
174       for (int i = endIdx; i >= 0; i--)
175       {
176          if (getHandlerInstance(i).handleResponse(context) == false)
177          {
178             return false;
179          }
180       }
181       return true;
182    }
183
184    public void destroy()
185    {
186       for (int i = 0; i < size(); i++)
187       {
188          getHandlerInstance(i).destroy();
189       }
190       clear();
191    }
192
193    private Handler JavaDoc getHandlerInstance(int index)
194    {
195       return (Handler JavaDoc)get(index);
196    }
197
198    private HandlerInfo JavaDoc getHandlerInfo(int index)
199    {
200       return (HandlerInfo JavaDoc)handlerInfos.get(index);
201    }
202
203    private Handler JavaDoc newHandler(HandlerInfo JavaDoc handlerInfo)
204    {
205       try
206       {
207          Handler JavaDoc handler =
208                  (Handler JavaDoc)handlerInfo.getHandlerClass().newInstance();
209          handler.init(handlerInfo);
210          return handler;
211       }
212       catch (Exception JavaDoc ex)
213       {
214          String JavaDoc messageText = Messages.getMessage("NoJAXRPCHandler00", handlerInfo.getHandlerClass().toString());
215          throw new JAXRPCException JavaDoc(messageText, ex);
216       }
217    }
218 }
219
220
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