| /* |
| * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/impl/entity/EntitySerializer.java $ |
| * $Revision: 560343 $ |
| * $Date: 2007-07-27 11:18:19 -0700 (Fri, 27 Jul 2007) $ |
| * |
| * ==================================================================== |
| * 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 |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.http.impl.entity; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import org.apache.http.HttpEntity; |
| import org.apache.http.HttpException; |
| import org.apache.http.HttpMessage; |
| import org.apache.http.entity.ContentLengthStrategy; |
| import org.apache.http.impl.io.ChunkedOutputStream; |
| import org.apache.http.impl.io.ContentLengthOutputStream; |
| import org.apache.http.impl.io.IdentityOutputStream; |
| import org.apache.http.io.SessionOutputBuffer; |
| |
| /** |
| * Default implementation of an entity serializer. |
| * <p> |
| * This entity serializer currently supports only "chunked" and "identitiy" transfer-coding</a> |
| * </p> |
| * |
| * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> |
| * |
| * @version $Revision: 560343 $ |
| * |
| * @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; |
| } |
| |
| 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); |
| } |
| } |
| |
| 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(); |
| } |
| |
| } |