1 /* 2 * ==================================================================== 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * ==================================================================== 20 * 21 * This software consists of voluntary contributions made by many 22 * individuals on behalf of the Apache Software Foundation. For more 23 * information on the Apache Software Foundation, please see 24 * <http://www.apache.org/>. 25 * 26 */ 27 package org.apache.http.client.cache; 28 29 import java.io.IOException; 30 import java.io.InputStream; 31 import java.io.Serializable; 32 33 /** 34 * Represents a disposable system resource used for handling 35 * cached response bodies. 36 * 37 * @since 4.1 38 */ 39 public interface Resource extends Serializable { 40 41 /** 42 * Returns an {@link InputStream} from which the response 43 * body can be read. 44 * @throws IOException 45 */ 46 InputStream getInputStream() throws IOException; 47 48 /** 49 * Returns the length in bytes of the response body. 50 */ 51 long length(); 52 53 /** 54 * Indicates the system no longer needs to keep this 55 * response body and any system resources associated with 56 * it may be reclaimed. 57 */ 58 void dispose(); 59 60 }