1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/EntityDeserializer.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,144 @@
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.impl.entity;
1.32 +
1.33 +import java.io.IOException;
1.34 +
1.35 +import ch.boye.httpclientandroidlib.Header;
1.36 +import ch.boye.httpclientandroidlib.HttpEntity;
1.37 +import ch.boye.httpclientandroidlib.HttpException;
1.38 +import ch.boye.httpclientandroidlib.HttpMessage;
1.39 +import ch.boye.httpclientandroidlib.entity.BasicHttpEntity;
1.40 +import ch.boye.httpclientandroidlib.entity.ContentLengthStrategy;
1.41 +import ch.boye.httpclientandroidlib.impl.io.ChunkedInputStream;
1.42 +import ch.boye.httpclientandroidlib.impl.io.ContentLengthInputStream;
1.43 +import ch.boye.httpclientandroidlib.impl.io.IdentityInputStream;
1.44 +import ch.boye.httpclientandroidlib.io.SessionInputBuffer;
1.45 +import ch.boye.httpclientandroidlib.protocol.HTTP;
1.46 +
1.47 +/**
1.48 + * HTTP entity deserializer.
1.49 + * <p>
1.50 + * This entity deserializer supports "chunked" and "identitiy" transfer-coding
1.51 + * and content length delimited content.
1.52 + * <p>
1.53 + * This class relies on a specific implementation of
1.54 + * {@link ContentLengthStrategy} to determine the content length or transfer
1.55 + * encoding of the entity.
1.56 + * <p>
1.57 + * This class generates an instance of {@link HttpEntity} based on
1.58 + * properties of the message. The content of the entity will be decoded
1.59 + * transparently for the consumer.
1.60 + *
1.61 + * @since 4.0
1.62 + */
1.63 +public class EntityDeserializer {
1.64 +
1.65 + private final ContentLengthStrategy lenStrategy;
1.66 +
1.67 + public EntityDeserializer(final ContentLengthStrategy lenStrategy) {
1.68 + super();
1.69 + if (lenStrategy == null) {
1.70 + throw new IllegalArgumentException("Content length strategy may not be null");
1.71 + }
1.72 + this.lenStrategy = lenStrategy;
1.73 + }
1.74 +
1.75 + /**
1.76 + * Creates a {@link BasicHttpEntity} based on properties of the given
1.77 + * message. The content of the entity is created by wrapping
1.78 + * {@link SessionInputBuffer} with a content decoder depending on the
1.79 + * transfer mechanism used by the message.
1.80 + * <p>
1.81 + * This method is called by the public
1.82 + * {@link #deserialize(SessionInputBuffer, HttpMessage)}.
1.83 + *
1.84 + * @param inbuffer the session input buffer.
1.85 + * @param message the message.
1.86 + * @return HTTP entity.
1.87 + * @throws HttpException in case of HTTP protocol violation.
1.88 + * @throws IOException in case of an I/O error.
1.89 + */
1.90 + protected BasicHttpEntity doDeserialize(
1.91 + final SessionInputBuffer inbuffer,
1.92 + final HttpMessage message) throws HttpException, IOException {
1.93 + BasicHttpEntity entity = new BasicHttpEntity();
1.94 +
1.95 + long len = this.lenStrategy.determineLength(message);
1.96 + if (len == ContentLengthStrategy.CHUNKED) {
1.97 + entity.setChunked(true);
1.98 + entity.setContentLength(-1);
1.99 + entity.setContent(new ChunkedInputStream(inbuffer));
1.100 + } else if (len == ContentLengthStrategy.IDENTITY) {
1.101 + entity.setChunked(false);
1.102 + entity.setContentLength(-1);
1.103 + entity.setContent(new IdentityInputStream(inbuffer));
1.104 + } else {
1.105 + entity.setChunked(false);
1.106 + entity.setContentLength(len);
1.107 + entity.setContent(new ContentLengthInputStream(inbuffer, len));
1.108 + }
1.109 +
1.110 + Header contentTypeHeader = message.getFirstHeader(HTTP.CONTENT_TYPE);
1.111 + if (contentTypeHeader != null) {
1.112 + entity.setContentType(contentTypeHeader);
1.113 + }
1.114 + Header contentEncodingHeader = message.getFirstHeader(HTTP.CONTENT_ENCODING);
1.115 + if (contentEncodingHeader != null) {
1.116 + entity.setContentEncoding(contentEncodingHeader);
1.117 + }
1.118 + return entity;
1.119 + }
1.120 +
1.121 + /**
1.122 + * Creates an {@link HttpEntity} based on properties of the given message.
1.123 + * The content of the entity is created by wrapping
1.124 + * {@link SessionInputBuffer} with a content decoder depending on the
1.125 + * transfer mechanism used by the message.
1.126 + * <p>
1.127 + * The content of the entity is NOT retrieved by this method.
1.128 + *
1.129 + * @param inbuffer the session input buffer.
1.130 + * @param message the message.
1.131 + * @return HTTP entity.
1.132 + * @throws HttpException in case of HTTP protocol violation.
1.133 + * @throws IOException in case of an I/O error.
1.134 + */
1.135 + public HttpEntity deserialize(
1.136 + final SessionInputBuffer inbuffer,
1.137 + final HttpMessage message) throws HttpException, IOException {
1.138 + if (inbuffer == null) {
1.139 + throw new IllegalArgumentException("Session input buffer may not be null");
1.140 + }
1.141 + if (message == null) {
1.142 + throw new IllegalArgumentException("HTTP message may not be null");
1.143 + }
1.144 + return doDeserialize(inbuffer, message);
1.145 + }
1.146 +
1.147 +}
