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Java example source code file (HttpServerCodec.java)

This example Java source code file (HttpServerCodec.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

combinedchannelduplexhandler, httprequestdecoder, httpresponseencoder, httpservercodec, override

The HttpServerCodec.java Java example source code

/*
 * 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.channel.ChannelHandlerContext;
import io.netty.channel.CombinedChannelDuplexHandler;

/**
 * A combination of {@link HttpRequestDecoder} and {@link HttpResponseEncoder}
 * which enables easier server side HTTP implementation.
 *
 * @see HttpClientCodec
 */
public final class HttpServerCodec extends CombinedChannelDuplexHandler<HttpRequestDecoder, HttpResponseEncoder>
        implements HttpServerUpgradeHandler.SourceCodec {

    /**
     * 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) {
        super(new HttpRequestDecoder(maxInitialLineLength, maxHeaderSize, maxChunkSize), new HttpResponseEncoder());
    }

    /**
     * Creates a new instance with the specified decoder options.
     */
    public HttpServerCodec(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize, boolean validateHeaders) {
        super(new HttpRequestDecoder(maxInitialLineLength, maxHeaderSize, maxChunkSize, validateHeaders),
                new HttpResponseEncoder());
    }

    /**
     * Creates a new instance with the specified decoder options.
     */
    public HttpServerCodec(int maxInitialLineLength, int maxHeaderSize, int maxChunkSize, boolean validateHeaders,
                           int initialBufferSize) {
        super(
          new HttpRequestDecoder(maxInitialLineLength, maxHeaderSize, maxChunkSize, validateHeaders, initialBufferSize),
          new HttpResponseEncoder());
    }

    /**
     * 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);
    }
}

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