View Javadoc
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.buffer;
17  
18  import java.nio.ByteOrder;
19  
20  /**
21   * A skeletal implementation of {@link ChannelBufferFactory}.
22   */
23  public abstract class AbstractChannelBufferFactory implements ChannelBufferFactory {
24  
25      private final ByteOrder defaultOrder;
26  
27      /**
28       * Creates a new factory whose default {@link ByteOrder} is
29       * {@link ByteOrder#BIG_ENDIAN}.
30       */
31      protected AbstractChannelBufferFactory() {
32          this(ByteOrder.BIG_ENDIAN);
33      }
34  
35      /**
36       * Creates a new factory with the specified default {@link ByteOrder}.
37       *
38       * @param defaultOrder the default {@link ByteOrder} of this factory
39       */
40      protected AbstractChannelBufferFactory(ByteOrder defaultOrder) {
41          if (defaultOrder == null) {
42              throw new NullPointerException("defaultOrder");
43          }
44          this.defaultOrder = defaultOrder;
45      }
46  
47      public ChannelBuffer getBuffer(int capacity) {
48          return getBuffer(getDefaultOrder(), capacity);
49      }
50  
51      public ChannelBuffer getBuffer(byte[] array, int offset, int length) {
52          return getBuffer(getDefaultOrder(), array, offset, length);
53      }
54  
55      public ByteOrder getDefaultOrder() {
56          return defaultOrder;
57      }
58  }