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    1   /*
    2    * Copyright 2012 The Netty Project
    3    *
    4    * The Netty Project licenses this file to you under the Apache License,
    5    * version 2.0 (the "License"); you may not use this file except in compliance
    6    * with the 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  public class TelnetServerPipelineFactory implements
    31          ChannelPipelineFactory {
    32
    33      public ChannelPipeline getPipeline() throws Exception {
    34          // Create a default pipeline implementation.
    35          ChannelPipeline pipeline = pipeline();
    36
    37          // Add the text line codec combination first,
    38          pipeline.addLast("framer", new DelimiterBasedFrameDecoder(
    39                  8192, Delimiters.lineDelimiter()));
    40          pipeline.addLast("decoder", new StringDecoder());
    41          pipeline.addLast("encoder", new StringEncoder());
    42
    43          // and then business logic.
    44          pipeline.addLast("handler", new TelnetServerHandler());
    45
    46          return pipeline;
    47      }
    48  }