Coverage Report - org.mule.providers.streaming.StreamMessageAdapter
 
Classes in this File Line Coverage Branch Coverage Complexity
StreamMessageAdapter
0%
0/39
0%
0/1
1.25
 
 1  
 /*
 2  
  * $Id: StreamMessageAdapter.java 7976 2007-08-21 14:26:13Z dirk.olmes $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.com
 5  
  *
 6  
  * The software in this package is published under the terms of the CPAL v1.0
 7  
  * license, a copy of which has been included with this distribution in the
 8  
  * LICENSE.txt file.
 9  
  */
 10  
 
 11  
 package org.mule.providers.streaming;
 12  
 
 13  
 import org.mule.impl.ThreadSafeAccess;
 14  
 import org.mule.providers.AbstractMessageAdapter;
 15  
 import org.mule.providers.NullPayload;
 16  
 import org.mule.umo.UMOEvent;
 17  
 import org.mule.umo.provider.OutputHandler;
 18  
 import org.mule.umo.provider.UMOStreamMessageAdapter;
 19  
 
 20  
 import java.io.IOException;
 21  
 import java.io.InputStream;
 22  
 import java.io.OutputStream;
 23  
 
 24  
 /**
 25  
  * Provides a generic base class for stream based message flows in Mule. This adapter
 26  
  * represents the 3 flows of data that Mule identifies, namely inbound, outbound and
 27  
  * response flows. These are represented by three streams on the adapter.
 28  
  *
 29  
  */
 30  
 public class StreamMessageAdapter extends AbstractMessageAdapter implements UMOStreamMessageAdapter
 31  
 {
 32  
     /**
 33  
      * Serial version
 34  
      */
 35  
     private static final long serialVersionUID = 6794965828515586752L;
 36  
 
 37  
     protected InputStream in;
 38  
     protected OutputStream out;
 39  
     protected OutputHandler handler;
 40  0
     private static NullPayload NULL_PAYLOAD = NullPayload.getInstance();
 41  
 
 42  
     public StreamMessageAdapter(InputStream in)
 43  0
     {
 44  0
         this.in = in;
 45  0
     }
 46  
 
 47  
     public StreamMessageAdapter(InputStream in, OutputStream out)
 48  0
     {
 49  0
         this.in = in;
 50  0
         this.out = out;
 51  0
     }
 52  
 
 53  
     public StreamMessageAdapter(OutputHandler handler)
 54  0
     {
 55  0
         this.handler = handler;
 56  0
     }
 57  
 
 58  
     public StreamMessageAdapter(OutputStream out, OutputHandler handler)
 59  0
     {
 60  0
         this.out = out;
 61  0
         this.handler = handler;
 62  0
     }
 63  
 
 64  
     public StreamMessageAdapter(InputStream in, OutputStream out, OutputHandler handler)
 65  0
     {
 66  0
         this.in = in;
 67  0
         this.out = out;
 68  0
         this.handler = handler;
 69  0
     }
 70  
 
 71  
     protected StreamMessageAdapter(StreamMessageAdapter template)
 72  
     {
 73  0
         super(template);
 74  0
         in = template.in;
 75  0
         out = template.out;
 76  0
         handler = template.handler;
 77  0
     }
 78  
 
 79  
     /**
 80  
      * Converts the message implementation into a String representation
 81  
      * 
 82  
      * @param encoding The encoding to use when transforming the message (if
 83  
      *            necessary). The parameter is used when converting from a byte array
 84  
      * @return String representation of the message payload
 85  
      * @throws Exception Implementation may throw an endpoint specific exception
 86  
      */
 87  
     public String getPayloadAsString(String encoding) throws Exception
 88  
     {
 89  0
         throw new UnsupportedOperationException("getPayloadAsString");
 90  
     }
 91  
 
 92  
     /**
 93  
      * Converts the message implementation into a String representation
 94  
      * 
 95  
      * @return String representation of the message
 96  
      * @throws Exception Implemetation may throw an endpoint specific exception
 97  
      */
 98  
     public byte[] getPayloadAsBytes() throws Exception
 99  
     {
 100  0
         throw new UnsupportedOperationException("getPayloadAsBytes");
 101  
     }
 102  
 
 103  
     /**
 104  
      * This is an InputStream if triggered from an inbound event or response. If the
 105  
      * Message has a response stream it is assumed that the message the response
 106  
      * stream should be used. If the Message has been triggered from an outbound
 107  
      * request and NullPayload will be used
 108  
      * 
 109  
      * @return the current message
 110  
      */
 111  
     public Object getPayload()
 112  
     {
 113  0
         if (in != null)
 114  
         {
 115  0
             return in;
 116  
         }
 117  0
         return NULL_PAYLOAD;
 118  
     }
 119  
 
 120  
     public InputStream getInputStream()
 121  
     {
 122  0
         return in;
 123  
     }
 124  
 
 125  
     public OutputStream getOutputStream()
 126  
     {
 127  0
         return out;
 128  
     }
 129  
 
 130  
     public void write(UMOEvent event) throws IOException
 131  
     {
 132  0
         handler.write(event, out);
 133  0
     }
 134  
 
 135  
     public OutputHandler getOutputHandler()
 136  
     {
 137  0
         return handler;
 138  
     }
 139  
 
 140  
     public void setOutputHandler(OutputHandler handler)
 141  
     {
 142  0
         this.handler = handler;
 143  0
     }
 144  
 
 145  
     /**
 146  
      * The release method is called by Mule to notify this adapter that it is no
 147  
      * longer needed. This method can be used to release any resources that a custom
 148  
      * StreamAdapter may have associated with it.
 149  
      */
 150  
     public void release()
 151  
     {
 152  
         // nothing to do?
 153  0
     }
 154  
 
 155  
     public ThreadSafeAccess newThreadCopy()
 156  
     {
 157  0
         return new StreamMessageAdapter(this);
 158  
     }
 159  
 
 160  
 }