b57d9f307f
- write() now accepts a ChannelPromise and returns ChannelFuture as most users expected. It makes the user's life much easier because it is now much easier to get notified when a specific message has been written. - flush() does not create a ChannelPromise nor returns ChannelFuture. It is now similar to what read() looks like.
82 lines
2.4 KiB
Java
82 lines
2.4 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.test.udt.util;
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import com.yammer.metrics.core.Meter;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.Unpooled;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.ChannelInboundHandlerAdapter;
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import io.netty.channel.udt.nio.NioUdtProvider;
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import io.netty.util.internal.logging.InternalLogger;
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import io.netty.util.internal.logging.InternalLoggerFactory;
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/**
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* Handler implementation for the echo client. It initiates the ping-pong
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* traffic between the echo client and server by sending the first message to
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* the server on activation.
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*/
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public class EchoByteHandler extends ChannelInboundHandlerAdapter {
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private static final InternalLogger log = InternalLoggerFactory.getInstance(EchoByteHandler.class);
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private final ByteBuf message;
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private final Meter meter;
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public Meter meter() {
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return meter;
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}
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public EchoByteHandler(final Meter meter, final int messageSize) {
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this.meter = meter;
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message = Unpooled.buffer(messageSize);
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for (int i = 0; i < message.capacity(); i++) {
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message.writeByte((byte) i);
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}
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}
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@Override
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public void channelActive(final ChannelHandlerContext ctx) throws Exception {
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log.info("ECHO active {}", NioUdtProvider.socketUDT(ctx.channel()).toStringOptions());
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ctx.writeAndFlush(message);
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}
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@Override
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public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
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ByteBuf buf = (ByteBuf) msg;
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if (meter != null) {
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meter.mark(buf.readableBytes());
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}
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ctx.writeAndFlush(msg);
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}
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@Override
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public void exceptionCaught(final ChannelHandlerContext ctx,
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final Throwable e) {
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log.error("exception : {}", e.getMessage());
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ctx.close();
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}
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}
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