diff -r 000000000000 -r 6474c204b198 mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/EntitySerializer.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/EntitySerializer.java Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,124 @@ +/* + * ==================================================================== + * 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 java.io.OutputStream; + +import ch.boye.httpclientandroidlib.HttpEntity; +import ch.boye.httpclientandroidlib.HttpException; +import ch.boye.httpclientandroidlib.HttpMessage; +import ch.boye.httpclientandroidlib.entity.ContentLengthStrategy; +import ch.boye.httpclientandroidlib.impl.io.ChunkedOutputStream; +import ch.boye.httpclientandroidlib.impl.io.ContentLengthOutputStream; +import ch.boye.httpclientandroidlib.impl.io.IdentityOutputStream; +import ch.boye.httpclientandroidlib.io.SessionOutputBuffer; + +/** + * HTTP entity serializer. + *

+ * This entity serializer currently 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 writes out the content of {@link HttpEntity} to the data stream + * using a transfer coding based on properties on the HTTP message. + * + * @since 4.0 + */ +public class EntitySerializer { + + private final ContentLengthStrategy lenStrategy; + + public EntitySerializer(final ContentLengthStrategy lenStrategy) { + super(); + if (lenStrategy == null) { + throw new IllegalArgumentException("Content length strategy may not be null"); + } + this.lenStrategy = lenStrategy; + } + + /** + * Creates a transfer codec based on properties of the given HTTP message + * and returns {@link OutputStream} instance that transparently encodes + * output data as it is being written out to the output stream. + *

+ * This method is called by the public + * {@link #serialize(SessionOutputBuffer, HttpMessage, HttpEntity)}. + * + * @param outbuffer the session output buffer. + * @param message the HTTP message. + * @return output stream. + * @throws HttpException in case of HTTP protocol violation. + * @throws IOException in case of an I/O error. + */ + protected OutputStream doSerialize( + final SessionOutputBuffer outbuffer, + final HttpMessage message) throws HttpException, IOException { + long len = this.lenStrategy.determineLength(message); + if (len == ContentLengthStrategy.CHUNKED) { + return new ChunkedOutputStream(outbuffer); + } else if (len == ContentLengthStrategy.IDENTITY) { + return new IdentityOutputStream(outbuffer); + } else { + return new ContentLengthOutputStream(outbuffer, len); + } + } + + /** + * Writes out the content of the given HTTP entity to the session output + * buffer based on properties of the given HTTP message. + * + * @param outbuffer the output session buffer. + * @param message the HTTP message. + * @param entity the HTTP entity to be written out. + * @throws HttpException in case of HTTP protocol violation. + * @throws IOException in case of an I/O error. + */ + public void serialize( + final SessionOutputBuffer outbuffer, + final HttpMessage message, + final HttpEntity entity) throws HttpException, IOException { + if (outbuffer == null) { + throw new IllegalArgumentException("Session output buffer may not be null"); + } + if (message == null) { + throw new IllegalArgumentException("HTTP message may not be null"); + } + if (entity == null) { + throw new IllegalArgumentException("HTTP entity may not be null"); + } + OutputStream outstream = doSerialize(outbuffer, message); + entity.writeTo(outstream); + outstream.close(); + } + +}