org.jboss.netty.handler.codec.http.HttpServerCodec Maven / Gradle / Ivy

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The Netty project is an effort to provide an asynchronous event-driven network application framework and tools for rapid development of maintainable high performance and high scalability protocol servers and clients. In other words, Netty is a NIO client server framework which enables quick and easy development of network applications such as protocol servers and clients. It greatly simplifies and streamlines network programming such as TCP and UDP socket server.

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/*
 * Copyright 2010 Red Hat, Inc.
 *
 * Red Hat 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 org.jboss.netty.handler.codec.http;

import org.jboss.netty.channel.ChannelDownstreamHandler;
import org.jboss.netty.channel.ChannelEvent;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelUpstreamHandler;

/**
 * A combination of {@link HttpRequestDecoder} and {@link HttpResponseEncoder}
 * which enables easier server side HTTP implementation.
 *
 * @author The Netty Project
 * @author Trustin Lee
 * @version $Rev: 2241 $, $Date: 2010-04-16 13:12:43 +0900 (Fri, 16 Apr 2010) $
 *
 * @see HttpClientCodec
 *
 * @apiviz.has org.jboss.netty.handler.codec.http.HttpRequestDecoder
 * @apiviz.has org.jboss.netty.handler.codec.http.HttpResponseEncoder
 */
public class HttpServerCodec implements ChannelUpstreamHandler,
        ChannelDownstreamHandler {

    private final HttpRequestDecoder decoder;
    private final HttpResponseEncoder encoder = new HttpResponseEncoder();

    /**
     * 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) {
        decoder = new HttpRequestDecoder(maxInitialLineLength, maxHeaderSize, maxChunkSize);
    }

    public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent e)
            throws Exception {
        decoder.handleUpstream(ctx, e);
    }

    public void handleDownstream(ChannelHandlerContext ctx, ChannelEvent e)
            throws Exception {
        encoder.handleDownstream(ctx, e);
    }
}