1 /* 2 * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.net; 27 28 import java.io.InputStream; 29 import java.util.Map; 30 import java.util.List; 31 import java.io.IOException; 32 33 /** 34 * Represent channels for retrieving resources from the 35 * ResponseCache. Instances of such a class provide an 36 * InputStream that returns the entity body, and also a 37 * getHeaders() method which returns the associated response headers. 38 * 39 * @author Yingxian Wang 40 * @since 1.5 41 */ 42 public abstract class CacheResponse { 43 44 /** 45 * Returns the response headers as a Map. 46 * 47 * @return An immutable Map from response header field names to 48 * lists of field values. The status line has null as its 49 * field name. 50 * @throws IOException if an I/O error occurs 51 * while getting the response headers 52 */ getHeaders()53 public abstract Map<String, List<String>> getHeaders() throws IOException; 54 55 /** 56 * Returns the response body as an InputStream. 57 * 58 * @return an InputStream from which the response body can 59 * be accessed 60 * @throws IOException if an I/O error occurs while 61 * getting the response body 62 */ getBody()63 public abstract InputStream getBody() throws IOException; 64 } 65