1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/entity/DecompressingEntity.java Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,102 @@ 1.4 +/* 1.5 + * ==================================================================== 1.6 + * 1.7 + * Licensed to the Apache Software Foundation (ASF) under one or more 1.8 + * contributor license agreements. See the NOTICE file distributed with 1.9 + * this work for additional information regarding copyright ownership. 1.10 + * The ASF licenses this file to You under the Apache License, Version 2.0 1.11 + * (the "License"); you may not use this file except in compliance with 1.12 + * the License. You may obtain a copy of the License at 1.13 + * 1.14 + * http://www.apache.org/licenses/LICENSE-2.0 1.15 + * 1.16 + * Unless required by applicable law or agreed to in writing, software 1.17 + * distributed under the License is distributed on an "AS IS" BASIS, 1.18 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1.19 + * See the License for the specific language governing permissions and 1.20 + * limitations under the License. 1.21 + * ==================================================================== 1.22 + * 1.23 + * This software consists of voluntary contributions made by many 1.24 + * individuals on behalf of the Apache Software Foundation. For more 1.25 + * information on the Apache Software Foundation, please see 1.26 + * <http://www.apache.org/>. 1.27 + * 1.28 + */ 1.29 +package ch.boye.httpclientandroidlib.client.entity; 1.30 + 1.31 +import java.io.IOException; 1.32 +import java.io.InputStream; 1.33 +import java.io.OutputStream; 1.34 + 1.35 +import ch.boye.httpclientandroidlib.HttpEntity; 1.36 +import ch.boye.httpclientandroidlib.entity.HttpEntityWrapper; 1.37 + 1.38 +/** 1.39 + * Common base class for decompressing {@link HttpEntity} implementations. 1.40 + * 1.41 + * @since 4.1 1.42 + */ 1.43 +abstract class DecompressingEntity extends HttpEntityWrapper { 1.44 + 1.45 + /** 1.46 + * Default buffer size. 1.47 + */ 1.48 + private static final int BUFFER_SIZE = 1024 * 2; 1.49 + 1.50 + /** 1.51 + * DecompressingEntities are not repeatable, so they will return the same 1.52 + * InputStream instance when {@link #getContent()} is called. 1.53 + */ 1.54 + private InputStream content; 1.55 + 1.56 + /** 1.57 + * Creates a new {@link DecompressingEntity}. 1.58 + * 1.59 + * @param wrapped 1.60 + * the non-null {@link HttpEntity} to be wrapped 1.61 + */ 1.62 + public DecompressingEntity(final HttpEntity wrapped) { 1.63 + super(wrapped); 1.64 + } 1.65 + 1.66 + abstract InputStream getDecompressingInputStream(final InputStream wrapped) throws IOException; 1.67 + 1.68 + /** 1.69 + * {@inheritDoc} 1.70 + */ 1.71 + @Override 1.72 + public InputStream getContent() throws IOException { 1.73 + if (wrappedEntity.isStreaming()) { 1.74 + if (content == null) { 1.75 + content = getDecompressingInputStream(wrappedEntity.getContent()); 1.76 + } 1.77 + return content; 1.78 + } else { 1.79 + return getDecompressingInputStream(wrappedEntity.getContent()); 1.80 + } 1.81 + } 1.82 + 1.83 + /** 1.84 + * {@inheritDoc} 1.85 + */ 1.86 + @Override 1.87 + public void writeTo(OutputStream outstream) throws IOException { 1.88 + if (outstream == null) { 1.89 + throw new IllegalArgumentException("Output stream may not be null"); 1.90 + } 1.91 + InputStream instream = getContent(); 1.92 + try { 1.93 + byte[] buffer = new byte[BUFFER_SIZE]; 1.94 + 1.95 + int l; 1.96 + 1.97 + while ((l = instream.read(buffer)) != -1) { 1.98 + outstream.write(buffer, 0, l); 1.99 + } 1.100 + } finally { 1.101 + instream.close(); 1.102 + } 1.103 + } 1.104 + 1.105 +}