/*
* 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.test.udt.util;
import com.yammer.metrics.core.Meter;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.udt.UdtMessage;
import io.netty.channel.udt.nio.NioUdtProvider;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
/**
* Handler implementation for the echo peer. It initiates the ping-pong traffic
* between the echo peers by sending the first message to the other peer on
* activation.
*/
public class EchoMessageHandler extends ChannelHandlerAdapter {
private static final InternalLogger log = InternalLoggerFactory.getInstance(EchoMessageHandler.class);
private final Meter meter;
private final UdtMessage message;
public Meter meter() {
return meter;
}
public EchoMessageHandler(final Meter meter, final int messageSize) {
this.meter = meter;
final ByteBuf byteBuf = Unpooled.buffer(messageSize);
for (int i = 0; i < byteBuf.capacity(); i++) {
byteBuf.writeByte((byte) i);
}
message = new UdtMessage(byteBuf);
}
@Override
public void channelActive(final ChannelHandlerContext ctx) throws Exception {
log.info("ECHO active {}", NioUdtProvider.socketUDT(ctx.channel()).toStringOptions());
ctx.writeAndFlush(message);
}
@Override
public void exceptionCaught(final ChannelHandlerContext ctx, final Throwable e) {
log.error("exception", e);
ctx.close();
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
UdtMessage udtMsg = (UdtMessage) msg;
if (meter != null) {
meter.mark(udtMsg.content().readableBytes());
}
ctx.writeAndFlush(msg);
}
}