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comparison: mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/entity/DecompressingEntity.java
mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/entity/DecompressingEntity.java
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| -1:000000000000 | 0:6e36688fa610 |
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| 1 /* | |
| 2 * ==================================================================== | |
| 3 * | |
| 4 * Licensed to the Apache Software Foundation (ASF) under one or more | |
| 5 * contributor license agreements. See the NOTICE file distributed with | |
| 6 * this work for additional information regarding copyright ownership. | |
| 7 * The ASF licenses this file to You under the Apache License, Version 2.0 | |
| 8 * (the "License"); you may not use this file except in compliance with | |
| 9 * 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, software | |
| 14 * distributed under the License is distributed on an "AS IS" BASIS, | |
| 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 16 * See the License for the specific language governing permissions and | |
| 17 * limitations under the License. | |
| 18 * ==================================================================== | |
| 19 * | |
| 20 * This software consists of voluntary contributions made by many | |
| 21 * individuals on behalf of the Apache Software Foundation. For more | |
| 22 * information on the Apache Software Foundation, please see | |
| 23 * <http://www.apache.org/>. | |
| 24 * | |
| 25 */ | |
| 26 package ch.boye.httpclientandroidlib.client.entity; | |
| 27 | |
| 28 import java.io.IOException; | |
| 29 import java.io.InputStream; | |
| 30 import java.io.OutputStream; | |
| 31 | |
| 32 import ch.boye.httpclientandroidlib.HttpEntity; | |
| 33 import ch.boye.httpclientandroidlib.entity.HttpEntityWrapper; | |
| 34 | |
| 35 /** | |
| 36 * Common base class for decompressing {@link HttpEntity} implementations. | |
| 37 * | |
| 38 * @since 4.1 | |
| 39 */ | |
| 40 abstract class DecompressingEntity extends HttpEntityWrapper { | |
| 41 | |
| 42 /** | |
| 43 * Default buffer size. | |
| 44 */ | |
| 45 private static final int BUFFER_SIZE = 1024 * 2; | |
| 46 | |
| 47 /** | |
| 48 * DecompressingEntities are not repeatable, so they will return the same | |
| 49 * InputStream instance when {@link #getContent()} is called. | |
| 50 */ | |
| 51 private InputStream content; | |
| 52 | |
| 53 /** | |
| 54 * Creates a new {@link DecompressingEntity}. | |
| 55 * | |
| 56 * @param wrapped | |
| 57 * the non-null {@link HttpEntity} to be wrapped | |
| 58 */ | |
| 59 public DecompressingEntity(final HttpEntity wrapped) { | |
| 60 super(wrapped); | |
| 61 } | |
| 62 | |
| 63 abstract InputStream getDecompressingInputStream(final InputStream wrapped) throws IOException; | |
| 64 | |
| 65 /** | |
| 66 * {@inheritDoc} | |
| 67 */ | |
| 68 @Override | |
| 69 public InputStream getContent() throws IOException { | |
| 70 if (wrappedEntity.isStreaming()) { | |
| 71 if (content == null) { | |
| 72 content = getDecompressingInputStream(wrappedEntity.getContent()); | |
| 73 } | |
| 74 return content; | |
| 75 } else { | |
| 76 return getDecompressingInputStream(wrappedEntity.getContent()); | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 /** | |
| 81 * {@inheritDoc} | |
| 82 */ | |
| 83 @Override | |
| 84 public void writeTo(OutputStream outstream) throws IOException { | |
| 85 if (outstream == null) { | |
| 86 throw new IllegalArgumentException("Output stream may not be null"); | |
| 87 } | |
| 88 InputStream instream = getContent(); | |
| 89 try { | |
| 90 byte[] buffer = new byte[BUFFER_SIZE]; | |
| 91 | |
| 92 int l; | |
| 93 | |
| 94 while ((l = instream.read(buffer)) != -1) { | |
| 95 outstream.write(buffer, 0, l); | |
| 96 } | |
| 97 } finally { | |
| 98 instream.close(); | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 } |
