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Java > Open Source Codes > org > apache > axis > handlers > http > HTTPActionHandler


1 /*
2  * Copyright 2001-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.axis.handlers.http;
18
19 import org.apache.axis.AxisFault;
20 import org.apache.axis.MessageContext;
21 import org.apache.axis.components.logger.LogFactory;
22 import org.apache.axis.handlers.BasicHandler;
23 import org.apache.axis.utils.Messages;
24 import org.apache.commons.logging.Log;
25
26
27 /** An <code>HTTPActionHandler</code> simply sets the context's TargetService
28  * property from the HTTPAction property. We expect there to be a
29  * Router on the chain after us, to dispatch to the service named in
30  * the SOAPAction.
31  *
32  * In the real world, this might do some more complex mapping of
33  * SOAPAction to a TargetService.
34  *
35  * @author Glen Daniels (gdaniels@allaire.com)
36  * @author Doug Davis (dug@us.ibm.com)
37  */
38 public class HTTPActionHandler extends BasicHandler
39 {
40     protected static Log log =
41         LogFactory.getLog(HTTPActionHandler.class.getName());
42
43     public void invoke(MessageContext msgContext) throws AxisFault
44     {
45         log.debug("Enter: HTTPActionHandler::invoke");
46
47         /** If there's already a targetService then just return.
48          */
49         if ( msgContext.getService() == null ) {
50             String JavaDoc action = (String JavaDoc) msgContext.getSOAPActionURI();
51             log.debug( " HTTP SOAPAction: " + action );
52             
53             /** The idea is that this handler only goes in the chain IF this
54             * service does a mapping between SOAPAction and target. Therefore
55             * if we get here with no action, we're in trouble.
56             */
57             if (action == null) {
58                 throw new AxisFault( "Server.NoHTTPSOAPAction",
59                     Messages.getMessage("noSOAPAction00"),
60                     null, null );
61             }
62             
63             action = action.trim();
64
65             // handle empty SOAPAction
66 if (action.length() > 0 && action.charAt(0) == '\"') {
67                 // assertTrue(action.endsWith("\"")
68 if (action.equals("\"\"")) {
69                     action = "";
70                 } else {
71                     action = action.substring(1, action.length() - 1);
72                 }
73             }
74             
75             // if action is zero-length string, don't set anything
76 if (action.length() > 0) {
77                 msgContext.setTargetService( action );
78             }
79         }
80
81         log.debug("Exit: HTTPActionHandler::invoke");
82     }
83 }
84
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