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 }