2012-06-04 22:31:44 +02:00
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
2012-04-12 10:39:01 +02:00
|
|
|
package io.netty.channel;
|
|
|
|
|
|
|
|
import java.net.SocketAddress;
|
|
|
|
|
2012-12-23 20:58:49 +01:00
|
|
|
/**
|
|
|
|
* {@link ChannelHandler} implementation which represents a combination out of a {@link ChannelStateHandler} and
|
|
|
|
* the {@link ChannelOperationHandler}.
|
|
|
|
*
|
|
|
|
* It is a good starting point if your {@link ChannelHandler} implementation needs to intercept operations and also
|
|
|
|
* state updates.
|
|
|
|
*/
|
|
|
|
public abstract class ChannelHandlerAdapter extends ChannelStateHandlerAdapter implements ChannelOperationHandler {
|
2012-10-24 18:27:26 +02:00
|
|
|
|
2012-12-23 20:58:49 +01:00
|
|
|
/**
|
|
|
|
* Calls {@link ChannelHandlerContext#bind(SocketAddress, ChannelFuture)} to forward
|
|
|
|
* to the next {@link ChannelOperationHandler} in the {@link ChannelPipeline}.
|
|
|
|
*
|
|
|
|
* Sub-classes may override this method to change behavior.
|
|
|
|
*/
|
2012-04-12 10:39:01 +02:00
|
|
|
@Override
|
2012-12-23 20:58:49 +01:00
|
|
|
public void bind(ChannelHandlerContext ctx, SocketAddress localAddress,
|
|
|
|
ChannelFuture future) throws Exception {
|
2012-05-01 10:19:41 +02:00
|
|
|
ctx.bind(localAddress, future);
|
2012-04-12 10:39:01 +02:00
|
|
|
}
|
|
|
|
|
2012-12-23 20:58:49 +01:00
|
|
|
/**
|
|
|
|
* Calls {@link ChannelHandlerContext#connect(SocketAddress, SocketAddress, ChannelFuture)} to forward
|
|
|
|
* to the next {@link ChannelOperationHandler} in the {@link ChannelPipeline}.
|
|
|
|
*
|
|
|
|
* Sub-classes may override this method to change behavior.
|
|
|
|
*/
|
2012-04-12 10:39:01 +02:00
|
|
|
@Override
|
2012-12-23 20:58:49 +01:00
|
|
|
public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress,
|
|
|
|
SocketAddress localAddress, ChannelFuture future) throws Exception {
|
2012-05-01 10:19:41 +02:00
|
|
|
ctx.connect(remoteAddress, localAddress, future);
|
2012-04-12 10:39:01 +02:00
|
|
|
}
|
|
|
|
|
2012-12-23 20:58:49 +01:00
|
|
|
/**
|
|
|
|
* Calls {@link ChannelHandlerContext#disconnect(ChannelFuture)} to forward
|
|
|
|
* to the next {@link ChannelOperationHandler} in the {@link ChannelPipeline}.
|
|
|
|
*
|
|
|
|
* Sub-classes may override this method to change behavior.
|
|
|
|
*/
|
2012-04-12 10:39:01 +02:00
|
|
|
@Override
|
2012-12-23 20:58:49 +01:00
|
|
|
public void disconnect(ChannelHandlerContext ctx, ChannelFuture future)
|
|
|
|
throws Exception {
|
2012-05-01 10:19:41 +02:00
|
|
|
ctx.disconnect(future);
|
2012-04-12 10:39:01 +02:00
|
|
|
}
|
|
|
|
|
2012-12-23 20:58:49 +01:00
|
|
|
/**
|
|
|
|
* Calls {@link ChannelHandlerContext#close(ChannelFuture)} to forward
|
|
|
|
* to the next {@link ChannelOperationHandler} in the {@link ChannelPipeline}.
|
|
|
|
*
|
|
|
|
* Sub-classes may override this method to change behavior.
|
|
|
|
*/
|
2012-04-12 10:39:01 +02:00
|
|
|
@Override
|
2012-12-23 20:58:49 +01:00
|
|
|
public void close(ChannelHandlerContext ctx, ChannelFuture future)
|
|
|
|
throws Exception {
|
2012-05-01 10:19:41 +02:00
|
|
|
ctx.close(future);
|
2012-04-12 10:39:01 +02:00
|
|
|
}
|
|
|
|
|
2012-12-23 20:58:49 +01:00
|
|
|
/**
|
|
|
|
* Calls {@link ChannelHandlerContext#close(ChannelFuture)} to forward
|
|
|
|
* to the next {@link ChannelOperationHandler} in the {@link ChannelPipeline}.
|
|
|
|
*
|
|
|
|
* Sub-classes may override this method to change behavior.
|
|
|
|
*/
|
2012-04-12 10:39:01 +02:00
|
|
|
@Override
|
2012-12-23 20:58:49 +01:00
|
|
|
public void deregister(ChannelHandlerContext ctx, ChannelFuture future)
|
|
|
|
throws Exception {
|
2012-05-01 10:19:41 +02:00
|
|
|
ctx.deregister(future);
|
2012-04-12 10:39:01 +02:00
|
|
|
}
|
|
|
|
|
2012-12-23 20:58:49 +01:00
|
|
|
/**
|
|
|
|
* Calls {@link ChannelHandlerContext#flush(ChannelFuture)} to forward
|
|
|
|
* to the next {@link ChannelOperationHandler} in the {@link ChannelPipeline}.
|
|
|
|
*
|
|
|
|
* Sub-classes may override this method to change behavior.
|
|
|
|
*
|
|
|
|
* Be aware that if your class also implement {@link ChannelOutboundHandler} it need to {@code @Override} this
|
|
|
|
* method and provide some proper implementation. Fail to do so, will result in an {@link IllegalStateException}!
|
|
|
|
*/
|
2012-04-12 10:39:01 +02:00
|
|
|
@Override
|
2012-12-23 20:58:49 +01:00
|
|
|
public void flush(ChannelHandlerContext ctx, ChannelFuture future)
|
|
|
|
throws Exception {
|
2012-06-10 03:48:11 +02:00
|
|
|
if (this instanceof ChannelOutboundHandler) {
|
|
|
|
throw new IllegalStateException(
|
|
|
|
"flush(...) must be overridden by " + getClass().getName() +
|
2012-12-23 20:58:49 +01:00
|
|
|
", which implements " + ChannelOutboundHandler.class.getSimpleName());
|
2012-06-07 09:56:21 +02:00
|
|
|
}
|
2012-06-07 10:25:15 +02:00
|
|
|
ctx.flush(future);
|
2012-04-12 10:39:01 +02:00
|
|
|
}
|
2012-12-23 20:58:49 +01:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Calls {@link ChannelHandlerContext#sendFile(FileRegion, ChannelFuture)} to forward
|
|
|
|
* to the next {@link ChannelOperationHandler} in the {@link ChannelPipeline}.
|
|
|
|
*
|
|
|
|
* Sub-classes may override this method to change behavior.
|
|
|
|
*/
|
|
|
|
@Override
|
|
|
|
public void sendFile(ChannelHandlerContext ctx, FileRegion region, ChannelFuture future) throws Exception {
|
|
|
|
ctx.sendFile(region, future);
|
|
|
|
}
|
2012-04-12 10:39:01 +02:00
|
|
|
}
|