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    1   /*
    2    * Copyright 2010 Red Hat, Inc.
    3    *
    4    * Red Hat licenses this file to you under the Apache License, version 2.0
    5    * (the "License"); you may not use this file except in compliance with the
    6    * License.  You may obtain a copy of the License at:
    7    *
    8    *    http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
    13   * License for the specific language governing permissions and limitations
    14   * under the License.
    15   */
    16  package org.jboss.netty.handler.codec.http;
    17
    18  import org.jboss.netty.channel.ChannelDownstreamHandler;
    19  import org.jboss.netty.channel.ChannelEvent;
    20  import org.jboss.netty.channel.ChannelHandlerContext;
    21  import org.jboss.netty.channel.ChannelUpstreamHandler;
    22
    23  /**
    24   * A combination of {@link HttpRequestDecoder} and {@link HttpResponseEncoder}
    25   * which enables easier server side HTTP implementation.
    26   *
    27   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
    28   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
    29   * @version $Rev: 2241 $, $Date: 2010-04-16 13:12:43 +0900 (Fri, 16 Apr 2010) $
    30   *
    31   * @see HttpClientCodec
    32   *
    33   * @apiviz.has org.jboss.netty.handler.codec.http.HttpRequestDecoder
    34   * @apiviz.has org.jboss.netty.handler.codec.http.HttpResponseEncoder
    35   */
    36  public class HttpServerCodec implements ChannelUpstreamHandler,
    37          ChannelDownstreamHandler {
    38
    39      private final HttpRequestDecoder decoder;
    40      private final HttpResponseEncoder encoder = new HttpResponseEncoder();
    41
    42      /**
    43       * Creates a new instance with the default decoder options
    44       * ({@code maxInitialLineLength (4096}}, {@code maxHeaderSize (8192)}, and
    45       * {@code maxChunkSize (8192)}).
    46       */
    47      public HttpServerCodec() {
    48          this(4096, 8192, 8192);
    49      }
    50
    51      /**
    52       * Creates a new instance with the specified decoder options.
    53       */
    54      public HttpServerCodec(
    55              int maxInitialLineLength, int maxHeaderSize, int maxChunkSize) {
    56          decoder = new HttpRequestDecoder(maxInitialLineLength, maxHeaderSize, maxChunkSize);
    57      }
    58
    59      public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent e)
    60              throws Exception {
    61          decoder.handleUpstream(ctx, e);
    62      }
    63
    64      public void handleDownstream(ChannelHandlerContext ctx, ChannelEvent e)
    65              throws Exception {
    66          encoder.handleDownstream(ctx, e);
    67      }
    68  }