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.handler.codec.serialization;
17
18 import java.io.FilterInputStream;
19 import java.io.InputStream;
20
21 /**
22 * {@link FilterInputStream} which allows a user to change the underlying
23 * stream at any time.
24 *
25 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
26 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
27 *
28 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
29 *
30 */
31 final class SwitchableInputStream extends FilterInputStream {
32
33 /**
34 * Creates a new instance without initializing the reference to the
35 * underlying stream.
36 */
37 SwitchableInputStream() {
38 super(null);
39 }
40
41 /**
42 * Creates a new instance with the initial reference to the underlying
43 * stream.
44 */
45 void switchStream(InputStream in) {
46 this.in = in;
47 }
48 }