1 /*
2 * Copyright 2009 Red Hat, Inc.
3 *
4 * Red Hat licenses this file to you under the Apache License, version 2.0
5 * (the "License"); you may not use this file except in compliance with the
6 * 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 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
24 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
25 *
26 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
27 */
28 public abstract class AbstractChannelBufferFactory implements ChannelBufferFactory {
29
30 private final ByteOrder defaultOrder;
31
32 /**
33 * Creates a new factory whose default {@link ByteOrder} is
34 * {@link ByteOrder#BIG_ENDIAN}.
35 */
36 protected AbstractChannelBufferFactory() {
37 this(ByteOrder.BIG_ENDIAN);
38 }
39
40 /**
41 * Creates a new factory with the specified default {@link ByteOrder}.
42 *
43 * @param defaultOrder the default {@link ByteOrder} of this factory
44 */
45 protected AbstractChannelBufferFactory(ByteOrder defaultOrder) {
46 if (defaultOrder == null) {
47 throw new NullPointerException("defaultOrder");
48 }
49 this.defaultOrder = defaultOrder;
50 }
51
52 public ChannelBuffer getBuffer(int capacity) {
53 return getBuffer(getDefaultOrder(), capacity);
54 }
55
56 public ChannelBuffer getBuffer(byte[] array, int offset, int length) {
57 return getBuffer(getDefaultOrder(), array, offset, length);
58 }
59
60 public ByteOrder getDefaultOrder() {
61 return defaultOrder;
62 }
63 }