/*
* 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 io.netty.example.echo;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundByteHandlerAdapter;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Handler implementation for the echo server.
*/
@Sharable
public class EchoServerHandler extends ChannelInboundByteHandlerAdapter {
private static final Logger logger = Logger.getLogger(
EchoServerHandler.class.getName());
@Override
public void inboundBufferUpdated(ChannelHandlerContext ctx, ByteBuf in) {
ByteBuf out = ctx.nextOutboundByteBuffer();
out.writeBytes(in);
ctx.flush();
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
// Close the connection when an exception is raised.
logger.log(Level.WARNING, "Unexpected exception from downstream.", cause);
ctx.close();
}
}