1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.mina.util.byteaccess;
21
22
23 import org.apache.mina.core.buffer.IoBuffer;
24
25
26 /**
27 * Creates <code>ByteArray</code> backed by a heap-allocated
28 * <code>IoBuffer</code>. The free method on returned
29 * <code>ByteArray</code>s is a nop.
30 *
31 * @author The Apache MINA Project (dev@mina.apache.org)
32 * @version $Rev$, $Date$
33 */
34 public class SimpleByteArrayFactory implements ByteArrayFactory
35 {
36 /**
37 *
38 * Creates a new instance of SimpleByteArrayFactory.
39 *
40 */
41 public SimpleByteArrayFactory()
42 {
43 super();
44 }
45
46
47 /**
48 * @inheritDoc
49 */
50 public ByteArray create( int size )
51 {
52 if ( size < 0 )
53 {
54 throw new IllegalArgumentException( "Buffer size must not be negative:" + size );
55 }
56 IoBuffer bb = IoBuffer.allocate( size );
57 ByteArray ba = new BufferByteArray( bb )
58 {
59
60 @Override
61 public void free()
62 {
63 // Nothing to do.
64 }
65
66 };
67 return ba;
68 }
69
70 }