DUBBO-78 JVM之间共享长连接 修改channalHandler代理类将Handler实际类型丢失的问题...

DUBBO-78 JVM之间共享长连接 修改channalHandler代理类将Handler实际类型丢失的问题 HedlerExchangeHandler不能实现代理类接口，否则通过getHandler获取的Handler将是此类代理的类，此类的功能将丢失。


git-svn-id: http://code.alibabatech.com/svn/dubbo/trunk@454 1a56cb94-b969-4eaa-88fa-be21384802f2

dubbo-remoting/src/main/java/com/alibaba/dubbo/remoting/exchange/support/header/HeaderExchangeHandler.java

@@ -28,7 +28,6 @@ import com.alibaba.dubbo.remoting.exchange.ExchangeHandler;
 import com.alibaba.dubbo.remoting.exchange.Request;
 import com.alibaba.dubbo.remoting.exchange.Response;
 import com.alibaba.dubbo.remoting.exchange.support.DefaultFuture;
-import com.alibaba.dubbo.remoting.transport.ChannelHandlerDelegate;
 
 /**
  * ExchangeReceiver
@@ -36,7 +35,8 @@ import com.alibaba.dubbo.remoting.transport.ChannelHandlerDelegate;
  * @author william.liangf
  * @author chao.liuc
  */
-public class HeaderExchangeHandler implements ChannelHandlerDelegate {
+//如果实现implementChannelHandlerDelegate，方法getHandler需要返回this.否则getHandler返回的是ExchangeHandler，将丢失本handler附加的功能.
+public class HeaderExchangeHandler implements ChannelHandler {
 
     protected static final Logger logger              = LoggerFactory.getLogger(HeaderExchangeHandler.class);
 
@@ -205,12 +205,4 @@ public class HeaderExchangeHandler implements ChannelHandlerDelegate {
             HeaderExchangeChannel.removeChannelIfDisconnected(channel);
         }
     }
-
-    public ChannelHandler getHandler() {
-        if (handler instanceof ChannelHandlerDelegate) {
-            return ((ChannelHandlerDelegate) handler).getHandler();
-        } else {
-            return handler;
-        }
-    }
 }
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