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   /*
    * 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 org.jboss.netty.channel.socket;
  
  import org.jboss.netty.channel.ChannelException;
  import org.jboss.netty.channel.DefaultChannelConfig;
  import org.jboss.netty.util.internal.ConversionUtil;
  
  import java.net.Socket;
  import java.net.SocketException;
  
  /**
   * The default {@link SocketChannelConfig} implementation.
   */
  public class DefaultSocketChannelConfig extends DefaultChannelConfig
                                          implements SocketChannelConfig {
  
      private final Socket socket;
  
      /**
       * Creates a new instance.
       */
      public DefaultSocketChannelConfig(Socket socket) {
          if (socket == null) {
              throw new NullPointerException("socket");
          }
          this.socket = socket;
      }
  
      @Override
      public boolean setOption(String key, Object value) {
          if (super.setOption(key, value)) {
              return true;
          }
  
          if ("receiveBufferSize".equals(key)) {
              setReceiveBufferSize(ConversionUtil.toInt(value));
          } else if ("sendBufferSize".equals(key)) {
              setSendBufferSize(ConversionUtil.toInt(value));
          } else if ("tcpNoDelay".equals(key)) {
              setTcpNoDelay(ConversionUtil.toBoolean(value));
          } else if ("keepAlive".equals(key)) {
              setKeepAlive(ConversionUtil.toBoolean(value));
          } else if ("reuseAddress".equals(key)) {
              setReuseAddress(ConversionUtil.toBoolean(value));
          } else if ("soLinger".equals(key)) {
              setSoLinger(ConversionUtil.toInt(value));
          } else if ("trafficClass".equals(key)) {
              setTrafficClass(ConversionUtil.toInt(value));
          } else {
              return false;
          }
          return true;
      }
  
      public int getReceiveBufferSize() {
          try {
              return socket.getReceiveBufferSize();
          } catch (SocketException e) {
              throw new ChannelException(e);
          }
      }
  
      public int getSendBufferSize() {
          try {
              return socket.getSendBufferSize();
          } catch (SocketException e) {
              throw new ChannelException(e);
          }
      }
  
      public int getSoLinger() {
          try {
              return socket.getSoLinger();
          } catch (SocketException e) {
              throw new ChannelException(e);
          }
      }
  
      public int getTrafficClass() {
          try {
              return socket.getTrafficClass();
          } catch (SocketException e) {
              throw new ChannelException(e);
          }
      }
 
     public boolean isKeepAlive() {
         try {
             return socket.getKeepAlive();
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public boolean isReuseAddress() {
         try {
             return socket.getReuseAddress();
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public boolean isTcpNoDelay() {
         try {
             return socket.getTcpNoDelay();
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public void setKeepAlive(boolean keepAlive) {
         try {
             socket.setKeepAlive(keepAlive);
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public void setPerformancePreferences(
             int connectionTime, int latency, int bandwidth) {
         socket.setPerformancePreferences(connectionTime, latency, bandwidth);
     }
 
     public void setReceiveBufferSize(int receiveBufferSize) {
         try {
             socket.setReceiveBufferSize(receiveBufferSize);
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public void setReuseAddress(boolean reuseAddress) {
         try {
             socket.setReuseAddress(reuseAddress);
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public void setSendBufferSize(int sendBufferSize) {
         try {
             socket.setSendBufferSize(sendBufferSize);
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public void setSoLinger(int soLinger) {
         try {
             if (soLinger < 0) {
                 socket.setSoLinger(false, 0);
             } else {
                 socket.setSoLinger(true, soLinger);
             }
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public void setTcpNoDelay(boolean tcpNoDelay) {
         try {
             socket.setTcpNoDelay(tcpNoDelay);
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 
     public void setTrafficClass(int trafficClass) {
         try {
             socket.setTrafficClass(trafficClass);
         } catch (SocketException e) {
             throw new ChannelException(e);
         }
     }
 }