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/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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.
*/
package io.netty.handler.codec.http;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.CombinedChannelDuplexHandler;
import java.util.ArrayDeque;
import java.util.List;
import java.util.Queue;
/**
* A combination of {@link HttpRequestDecoder} and {@link HttpResponseEncoder}
* which enables easier server side HTTP implementation.
*
* @see HttpClientCodec
*/
public final class HttpServerCodec extends CombinedChannelDuplexHandler
implements HttpServerUpgradeHandler.SourceCodec {
/** A queue that is used for correlating a request and a response. */
private final Queue queue = new ArrayDeque();
/**
* Creates a new instance with the default decoder options
* ({@code maxInitialLineLength (4096}}, {@code maxHeaderSize (8192)}, and
* {@code maxChunkSize (8192)}).
*/
public HttpServerCodec() {
this(4096, 8192, 8192);
}
/**
* Creates a new instance with the specified decoder options.
*/
public HttpServerCodec(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize) {
init(new HttpServerRequestDecoder(maxInitialLineLength, maxHeaderSize, maxChunkSize),
new HttpServerResponseEncoder());
}
/**
* Creates a new instance with the specified decoder options.
*/
public HttpServerCodec(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize, boolean validateHeaders) {
init(new HttpServerRequestDecoder(maxInitialLineLength, maxHeaderSize, maxChunkSize, validateHeaders),
new HttpServerResponseEncoder());
}
/**
* Creates a new instance with the specified decoder options.
*/
public HttpServerCodec(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize, boolean validateHeaders,
int initialBufferSize) {
init(
new HttpServerRequestDecoder(maxInitialLineLength, maxHeaderSize, maxChunkSize,
validateHeaders, initialBufferSize),
new HttpServerResponseEncoder());
}
/**
* Upgrades to another protocol from HTTP. Removes the {@link HttpRequestDecoder} and
* {@link HttpResponseEncoder} from the pipeline.
*/
@Override
public void upgradeFrom(ChannelHandlerContext ctx) {
ctx.pipeline().remove(this);
}
private final class HttpServerRequestDecoder extends HttpRequestDecoder {
HttpServerRequestDecoder(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize) {
super(maxInitialLineLength, maxHeaderSize, maxChunkSize);
}
HttpServerRequestDecoder(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize,
boolean validateHeaders) {
super(maxInitialLineLength, maxHeaderSize, maxChunkSize, validateHeaders);
}
HttpServerRequestDecoder(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize,
boolean validateHeaders, int initialBufferSize) {
super(maxInitialLineLength, maxHeaderSize, maxChunkSize, validateHeaders, initialBufferSize);
}
@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List
