MultiplexOutputStream


1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.servicemix.jbi.util;
18  
19  import edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList;
20  
21  import java.io.IOException  ;
22  import java.io.OutputStream  ;
23  import java.util.Iterator  ;
24  import java.util.List  ;
25  
26  /**
27   * Write to multiple OutputStreams
28   * 
29   * @version $Revision: 426415 $
30   */
31  public class MultiplexOutputStream extends OutputStream   {
32      List streams = new CopyOnWriteArrayList();
33      
34      
35      /**
36       * Add an Output Stream
37       * @param os
38       */
39      public void add(OutputStream   os){
40          streams.add(os);
41      }
42      
43      /**
44       * Remove an OutputStream
45       * @param os
46       */
47      public void remove(OutputStream   os){
48          streams.remove(os);
49      }
50  
51      /**
52       * write a byte
53       * @param b
54       * @throws IOException
55       */
56      public synchronized void write(int b) throws IOException   {
57          for (Iterator   i = streams.iterator();i.hasNext();) {
58              OutputStream   s = (OutputStream  ) i.next();
59              s.write(b);
60          }
61      }
62  
63      /**
64       * write an array
65       * @param b
66       * @param off
67       * @param len
68       * @throws IOException
69       */
70      public synchronized void write(byte b[], int off, int len) throws IOException   {
71          for (Iterator   i = streams.iterator();i.hasNext();) {
72              OutputStream   s = (OutputStream  ) i.next();
73              s.write(b, off, len);
74          }
75      }
76  
77      /**
78       * flush
79       * @throws IOException
80       */
81      public void flush() throws IOException   {
82          for (Iterator   i = streams.iterator();i.hasNext();) {
83              OutputStream   s = (OutputStream  ) i.next();
84              s.flush();
85          }
86      }
87  
88      /**
89       * close
90       * @throws IOException
91       */
92      public void close() throws IOException   {
93          for (Iterator   i = streams.iterator();i.hasNext();) {
94              OutputStream   s = (OutputStream  ) i.next();
95              s.close();
96          }
97          streams.clear();
98      }
99  }
100
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags