2009-11-02 10:21:13 +01:00
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/*
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* Copyright 2009 Red Hat, Inc.
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*
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* Red Hat licenses this file to you under the Apache License, version 2.0
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* (the "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package org.jboss.netty.handler.codec.http;
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import org.jboss.netty.buffer.ChannelBuffer;
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import org.jboss.netty.channel.ChannelPipeline;
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import org.jboss.netty.channel.ChannelPipelineCoverage;
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import org.jboss.netty.handler.codec.compression.ZlibDecoder;
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import org.jboss.netty.handler.codec.compression.ZlibWrapper;
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import org.jboss.netty.handler.codec.embedder.DecoderEmbedder;
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/**
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* Decompresses an {@link HttpMessage} and an {@link HttpChunk} compressed in
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* {@code gzip} or {@code deflate} encoding. Insert this handler after
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* {@link HttpMessageDecoder} in the {@link ChannelPipeline}:
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* <pre>
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* ChannelPipeline p = ...;
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* ...
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* p.addLast("decoder", new HttpRequestDecoder());
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* p.addLast("inflater", <b>new HttpContentDecomperssor()</b>);
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* ...
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* p.addLast("encoder", new HttpResponseEncoder());
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* p.addLast("handler", new HttpRequestHandler());
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* </pre>
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*
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* @author The Netty Project (netty-dev@lists.jboss.org)
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2009-11-03 07:49:47 +01:00
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* @author Trustin Lee (trustin@gmail.com)
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2009-11-02 10:21:13 +01:00
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* @version $Rev$, $Date$
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*/
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@ChannelPipelineCoverage("one")
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public class HttpContentDecompressor extends HttpContentDecoder {
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@Override
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2009-11-03 07:47:30 +01:00
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protected DecoderEmbedder<ChannelBuffer> newContentDecoder(String contentEncoding) throws Exception {
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2009-11-02 10:21:13 +01:00
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if ("gzip".equalsIgnoreCase(contentEncoding) || "x-gzip".equalsIgnoreCase(contentEncoding)) {
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return new DecoderEmbedder<ChannelBuffer>(new ZlibDecoder(ZlibWrapper.GZIP));
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} else if ("deflate".equalsIgnoreCase(contentEncoding) || "x-deflate".equalsIgnoreCase(contentEncoding)) {
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return new DecoderEmbedder<ChannelBuffer>(new ZlibDecoder(ZlibWrapper.ZLIB));
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}
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// 'identity' or unsupported
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return null;
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}
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}
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