| /* |
| * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/impl/entity/EntityDeserializer.java $ |
| * $Revision: 560358 $ |
| * $Date: 2007-07-27 12:30:42 -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 org.apache.http.Header; |
| import org.apache.http.HttpEntity; |
| import org.apache.http.HttpException; |
| import org.apache.http.HttpMessage; |
| import org.apache.http.entity.BasicHttpEntity; |
| import org.apache.http.entity.ContentLengthStrategy; |
| import org.apache.http.impl.io.ChunkedInputStream; |
| import org.apache.http.impl.io.ContentLengthInputStream; |
| import org.apache.http.impl.io.IdentityInputStream; |
| import org.apache.http.io.SessionInputBuffer; |
| import org.apache.http.protocol.HTTP; |
| |
| /** |
| * Default implementation of an entity deserializer. |
| * <p> |
| * This entity deserializer currently supports only "chunked" and "identitiy" transfer-coding</a> |
| * </p> |
| * |
| * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> |
| * |
| * @version $Revision: 560358 $ |
| * |
| * @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; |
| } |
| |
| 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; |
| } |
| |
| 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); |
| } |
| |
| } |