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1   /*
2    * Copyright 2012 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. 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, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package org.jboss.netty.handler.codec.marshalling;
17  
18  import java.io.IOException;
19  
20  import org.jboss.marshalling.ByteOutput;
21  import org.jboss.netty.buffer.ChannelBuffer;
22  import org.jboss.netty.buffer.ChannelBufferFactory;
23  import org.jboss.netty.buffer.ChannelBuffers;
24  
25  /**
26   * {@link ByteOutput} implementation which writes the data to a {@link ChannelBuffer}
27   *
28   *
29   */
30  class ChannelBufferByteOutput implements ByteOutput {
31  
32      private final ChannelBuffer buffer;
33  
34      /**
35       * Create a new instance which use the given {@link ChannelBuffer}
36       */
37      public ChannelBufferByteOutput(ChannelBuffer buffer) {
38          this.buffer = buffer;
39      }
40  
41      /**
42       * Calls {@link #ChannelBufferByteOutput(ChannelBuffer)} with a dynamic {@link ChannelBuffer}
43       */
44      public ChannelBufferByteOutput(ChannelBufferFactory factory, int estimatedLength) {
45          this(ChannelBuffers.dynamicBuffer(estimatedLength, factory));
46      }
47  
48      public void close() throws IOException {
49          // Nothing todo
50      }
51  
52      public void flush() throws IOException {
53          // nothing to do
54      }
55  
56      public void write(int b) throws IOException {
57          buffer.writeByte(b);
58      }
59  
60      public void write(byte[] bytes) throws IOException {
61          buffer.writeBytes(bytes);
62      }
63  
64      public void write(byte[] bytes, int srcIndex, int length) throws IOException {
65          buffer.writeBytes(bytes, srcIndex, length);
66      }
67  
68      /**
69       * Return the {@link ChannelBuffer} which contains the written content
70       *
71       */
72      public ChannelBuffer getBuffer() {
73          return buffer;
74      }
75  
76  }