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    1   /*
    2    * Copyright 2009 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.example.telnet;
    17
    18  import static org.jboss.netty.channel.Channels.*;
    19
    20  import org.jboss.netty.channel.ChannelPipeline;
    21  import org.jboss.netty.channel.ChannelPipelineFactory;
    22  import org.jboss.netty.handler.codec.frame.DelimiterBasedFrameDecoder;
    23  import org.jboss.netty.handler.codec.frame.Delimiters;
    24  import org.jboss.netty.handler.codec.string.StringDecoder;
    25  import org.jboss.netty.handler.codec.string.StringEncoder;
    26
    27  /**
    28   * Creates a newly configured {@link ChannelPipeline} for a new channel.
    29   *
    30   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
    31   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
    32   *
    33   * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
    34   *
    35   */
    36  public class TelnetClientPipelineFactory implements
    37          ChannelPipelineFactory {
    38
    39      public ChannelPipeline getPipeline() throws Exception {
    40          // Create a default pipeline implementation.
    41          ChannelPipeline pipeline = pipeline();
    42
    43          // Add the text line codec combination first,
    44          pipeline.addLast("framer", new DelimiterBasedFrameDecoder(
    45                  8192, Delimiters.lineDelimiter()));
    46          pipeline.addLast("decoder", new StringDecoder());
    47          pipeline.addLast("encoder", new StringEncoder());
    48
    49          // and then business logic.
    50          pipeline.addLast("handler", new TelnetClientHandler());
    51
    52          return pipeline;
    53      }
    54  }