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| 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 | */ | ||
| 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 | */ | ||
| 63 | public abstract InputStream getBody() throws IOException; | ||
| 64 | } | ||