1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/entity/BufferedHttpEntity.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,118 @@
1.4 +/*
1.5 + * ====================================================================
1.6 + * Licensed to the Apache Software Foundation (ASF) under one
1.7 + * or more contributor license agreements. See the NOTICE file
1.8 + * distributed with this work for additional information
1.9 + * regarding copyright ownership. The ASF licenses this file
1.10 + * to you under the Apache License, Version 2.0 (the
1.11 + * "License"); you may not use this file except in compliance
1.12 + * with 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,
1.17 + * software distributed under the License is distributed on an
1.18 + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
1.19 + * KIND, either express or implied. See the License for the
1.20 + * specific language governing permissions and limitations
1.21 + * under the License.
1.22 + * ====================================================================
1.23 + *
1.24 + * This software consists of voluntary contributions made by many
1.25 + * individuals on behalf of the Apache Software Foundation. For more
1.26 + * information on the Apache Software Foundation, please see
1.27 + * <http://www.apache.org/>.
1.28 + *
1.29 + */
1.30 +
1.31 +package ch.boye.httpclientandroidlib.entity;
1.32 +
1.33 +import java.io.ByteArrayInputStream;
1.34 +import java.io.IOException;
1.35 +import java.io.InputStream;
1.36 +import java.io.OutputStream;
1.37 +
1.38 +import ch.boye.httpclientandroidlib.HttpEntity;
1.39 +import ch.boye.httpclientandroidlib.util.EntityUtils;
1.40 +
1.41 +/**
1.42 + * A wrapping entity that buffers it content if necessary.
1.43 + * The buffered entity is always repeatable.
1.44 + * If the wrapped entity is repeatable itself, calls are passed through.
1.45 + * If the wrapped entity is not repeatable, the content is read into a
1.46 + * buffer once and provided from there as often as required.
1.47 + *
1.48 + * @since 4.0
1.49 + */
1.50 +public class BufferedHttpEntity extends HttpEntityWrapper {
1.51 +
1.52 + private final byte[] buffer;
1.53 +
1.54 + /**
1.55 + * Creates a new buffered entity wrapper.
1.56 + *
1.57 + * @param entity the entity to wrap, not null
1.58 + * @throws IllegalArgumentException if wrapped is null
1.59 + */
1.60 + public BufferedHttpEntity(final HttpEntity entity) throws IOException {
1.61 + super(entity);
1.62 + if (!entity.isRepeatable() || entity.getContentLength() < 0) {
1.63 + this.buffer = EntityUtils.toByteArray(entity);
1.64 + } else {
1.65 + this.buffer = null;
1.66 + }
1.67 + }
1.68 +
1.69 + public long getContentLength() {
1.70 + if (this.buffer != null) {
1.71 + return this.buffer.length;
1.72 + } else {
1.73 + return wrappedEntity.getContentLength();
1.74 + }
1.75 + }
1.76 +
1.77 + public InputStream getContent() throws IOException {
1.78 + if (this.buffer != null) {
1.79 + return new ByteArrayInputStream(this.buffer);
1.80 + } else {
1.81 + return wrappedEntity.getContent();
1.82 + }
1.83 + }
1.84 +
1.85 + /**
1.86 + * Tells that this entity does not have to be chunked.
1.87 + *
1.88 + * @return <code>false</code>
1.89 + */
1.90 + public boolean isChunked() {
1.91 + return (buffer == null) && wrappedEntity.isChunked();
1.92 + }
1.93 +
1.94 + /**
1.95 + * Tells that this entity is repeatable.
1.96 + *
1.97 + * @return <code>true</code>
1.98 + */
1.99 + public boolean isRepeatable() {
1.100 + return true;
1.101 + }
1.102 +
1.103 +
1.104 + public void writeTo(final OutputStream outstream) throws IOException {
1.105 + if (outstream == null) {
1.106 + throw new IllegalArgumentException("Output stream may not be null");
1.107 + }
1.108 + if (this.buffer != null) {
1.109 + outstream.write(this.buffer);
1.110 + } else {
1.111 + wrappedEntity.writeTo(outstream);
1.112 + }
1.113 + }
1.114 +
1.115 +
1.116 + // non-javadoc, see interface HttpEntity
1.117 + public boolean isStreaming() {
1.118 + return (buffer == null) && wrappedEntity.isStreaming();
1.119 + }
1.120 +
1.121 +} // class BufferedHttpEntity
