1069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/* 2069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/entity/InputStreamEntity.java $ 3069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Revision: 617591 $ 4069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Date: 2008-02-01 10:21:17 -0800 (Fri, 01 Feb 2008) $ 5069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 6069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * ==================================================================== 7069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one 8069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * or more contributor license agreements. See the NOTICE file 9069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * distributed with this work for additional information 10069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * regarding copyright ownership. The ASF licenses this file 11069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * to you under the Apache License, Version 2.0 (the 12069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "License"); you may not use this file except in compliance 13069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * with the License. You may obtain a copy of the License at 14069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 15069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 16069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 17069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Unless required by applicable law or agreed to in writing, 18069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * software distributed under the License is distributed on an 19069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 20069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * KIND, either express or implied. See the License for the 21069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * specific language governing permissions and limitations 22069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * under the License. 23069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * ==================================================================== 24069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 25069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * This software consists of voluntary contributions made by many 26069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * individuals on behalf of the Apache Software Foundation. For more 27069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * information on the Apache Software Foundation, please see 28069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <http://www.apache.org/>. 29069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 30069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 31069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 32069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpackage org.apache.http.entity; 33069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 34069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.IOException; 35069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.InputStream; 36069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.OutputStream; 37069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 38069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/** 39069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * A streamed entity obtaining content from an {@link InputStream InputStream}. 40069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 41069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 42069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 43069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @version $Revision: 617591 $ 44069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 45069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @since 4.0 46069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 47069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpublic class InputStreamEntity extends AbstractHttpEntity { 48069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 49069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private final static int BUFFER_SIZE = 2048; 50069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 51069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private final InputStream content; 52069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private final long length; 53069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private boolean consumed = false; 54069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 55069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public InputStreamEntity(final InputStream instream, long length) { 56069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project super(); 57069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (instream == null) { 58069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Source input stream may not be null"); 59069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 60069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.content = instream; 61069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.length = length; 62069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 63069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 64069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public boolean isRepeatable() { 65069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return false; 66069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 67069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 68069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public long getContentLength() { 69069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.length; 70069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 71069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 72069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public InputStream getContent() throws IOException { 73069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.content; 74069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 75069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 76069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public void writeTo(final OutputStream outstream) throws IOException { 77069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (outstream == null) { 78069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Output stream may not be null"); 79069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 80069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project InputStream instream = this.content; 81069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project byte[] buffer = new byte[BUFFER_SIZE]; 82069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project int l; 83069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (this.length < 0) { 84069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // consume until EOF 85069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while ((l = instream.read(buffer)) != -1) { 86069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project outstream.write(buffer, 0, l); 87069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 88069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } else { 89069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // consume no more than length 90069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project long remaining = this.length; 91069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project while (remaining > 0) { 92069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project l = instream.read(buffer, 0, (int)Math.min(BUFFER_SIZE, remaining)); 93069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (l == -1) { 94069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project break; 95069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 96069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project outstream.write(buffer, 0, l); 97069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project remaining -= l; 98069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 99069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 100069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.consumed = true; 101069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 102069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 103069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // non-javadoc, see interface HttpEntity 104069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public boolean isStreaming() { 105069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return !this.consumed; 106069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 107069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 108069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // non-javadoc, see interface HttpEntity 109069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public void consumeContent() throws IOException { 110069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.consumed = true; 111069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // If the input stream is from a connection, closing it will read to 112069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // the end of the content. Otherwise, we don't care what it does. 113069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.content.close(); 114069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 115069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 116069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project} // class InputStreamEntity 117