PlaybackService


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  package test;
17  
18  import org.apache.axis.AxisFault;
19  import org.apache.axis.Message;
20  import org.apache.axis.MessageContext;
21  import org.apache.axis.handlers.BasicHandler;
22  
23  import java.io.FileInputStream  ;
24  import java.io.FileNotFoundException  ;
25  
26  /**
27   * A trivial service which simply echoes back a desired SOAP message.  This
28   * is useful for testing, as we can simulate responses from particular packages,
29   * bugs, etc.  This should be deployed with provider="Handler".
30   *
31   * @author Glen Daniels (gdaniels@apache.org)
32   */
33  public class PlaybackService extends BasicHandler {
34      /**
35       * Get the filename which contains the response message.  Looks in
36       * the MessageContext/service/engine for a "responseFile" property, and
37       * if found simply returns that value.  Otherwise defaults to
38       * "response.xml" in the current directory of the server.
39       * 
40       * This mechanism can be configured in two ways.  First, anyone can set
41       * the "responseFile" property based on the message contents, etc.  As long
42       * as this happens earlier in the handler chain, the value will be picked
43       * up and used here.  Second, this class can be subclassed and this
44       * method overriden to do the right thing.
45       * 
46       * @param context the current MessageContext
47       * @return the filename containing the canned response
48       */ 
49      protected String   getFilename(MessageContext context) {
50          String   filename = context.getStrProp("responseFile");
51          if (filename == null) {
52              filename = "response.xml";
53          }
54          return filename;
55      }
56      
57      public void invoke(MessageContext context) throws AxisFault {
58          try {
59              FileInputStream   stream = new FileInputStream  (getFilename(context));
60              context.setResponseMessage(new Message(stream));
61          } catch (FileNotFoundException   e) {
62              throw AxisFault.makeFault(e);
63          }
64      }
65  }
66
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