diff -r 000000000000 -r 6474c204b198 mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/EntityDeserializer.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/EntityDeserializer.java Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,144 @@ +/* + * ==================================================================== + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * . + * + */ + +package ch.boye.httpclientandroidlib.impl.entity; + +import java.io.IOException; + +import ch.boye.httpclientandroidlib.Header; +import ch.boye.httpclientandroidlib.HttpEntity; +import ch.boye.httpclientandroidlib.HttpException; +import ch.boye.httpclientandroidlib.HttpMessage; +import ch.boye.httpclientandroidlib.entity.BasicHttpEntity; +import ch.boye.httpclientandroidlib.entity.ContentLengthStrategy; +import ch.boye.httpclientandroidlib.impl.io.ChunkedInputStream; +import ch.boye.httpclientandroidlib.impl.io.ContentLengthInputStream; +import ch.boye.httpclientandroidlib.impl.io.IdentityInputStream; +import ch.boye.httpclientandroidlib.io.SessionInputBuffer; +import ch.boye.httpclientandroidlib.protocol.HTTP; + +/** + * HTTP entity deserializer. + *

+ * This entity deserializer supports "chunked" and "identitiy" transfer-coding + * and content length delimited content. + *

+ * This class relies on a specific implementation of + * {@link ContentLengthStrategy} to determine the content length or transfer + * encoding of the entity. + *

+ * This class generates an instance of {@link HttpEntity} based on + * properties of the message. The content of the entity will be decoded + * transparently for the consumer. + * + * @since 4.0 + */ +public class EntityDeserializer { + + private final ContentLengthStrategy lenStrategy; + + public EntityDeserializer(final ContentLengthStrategy lenStrategy) { + super(); + if (lenStrategy == null) { + throw new IllegalArgumentException("Content length strategy may not be null"); + } + this.lenStrategy = lenStrategy; + } + + /** + * Creates a {@link BasicHttpEntity} based on properties of the given + * message. The content of the entity is created by wrapping + * {@link SessionInputBuffer} with a content decoder depending on the + * transfer mechanism used by the message. + *

+ * This method is called by the public + * {@link #deserialize(SessionInputBuffer, HttpMessage)}. + * + * @param inbuffer the session input buffer. + * @param message the message. + * @return HTTP entity. + * @throws HttpException in case of HTTP protocol violation. + * @throws IOException in case of an I/O error. + */ + protected BasicHttpEntity doDeserialize( + final SessionInputBuffer inbuffer, + final HttpMessage message) throws HttpException, IOException { + BasicHttpEntity entity = new BasicHttpEntity(); + + long len = this.lenStrategy.determineLength(message); + if (len == ContentLengthStrategy.CHUNKED) { + entity.setChunked(true); + entity.setContentLength(-1); + entity.setContent(new ChunkedInputStream(inbuffer)); + } else if (len == ContentLengthStrategy.IDENTITY) { + entity.setChunked(false); + entity.setContentLength(-1); + entity.setContent(new IdentityInputStream(inbuffer)); + } else { + entity.setChunked(false); + entity.setContentLength(len); + entity.setContent(new ContentLengthInputStream(inbuffer, len)); + } + + Header contentTypeHeader = message.getFirstHeader(HTTP.CONTENT_TYPE); + if (contentTypeHeader != null) { + entity.setContentType(contentTypeHeader); + } + Header contentEncodingHeader = message.getFirstHeader(HTTP.CONTENT_ENCODING); + if (contentEncodingHeader != null) { + entity.setContentEncoding(contentEncodingHeader); + } + return entity; + } + + /** + * Creates an {@link HttpEntity} based on properties of the given message. + * The content of the entity is created by wrapping + * {@link SessionInputBuffer} with a content decoder depending on the + * transfer mechanism used by the message. + *

+ * The content of the entity is NOT retrieved by this method. + * + * @param inbuffer the session input buffer. + * @param message the message. + * @return HTTP entity. + * @throws HttpException in case of HTTP protocol violation. + * @throws IOException in case of an I/O error. + */ + public HttpEntity deserialize( + final SessionInputBuffer inbuffer, + final HttpMessage message) throws HttpException, IOException { + if (inbuffer == null) { + throw new IllegalArgumentException("Session input buffer may not be null"); + } + if (message == null) { + throw new IllegalArgumentException("HTTP message may not be null"); + } + return doDeserialize(inbuffer, message); + } + +}