65 lines
2.0 KiB
Java
65 lines
2.0 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.example.sctp;
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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.ChannelHandler;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.sctp.SctpMessage;
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/**
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* Handler implementation for the SCTP 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.
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*/
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public class SctpEchoClientHandler implements ChannelHandler {
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private final ByteBuf firstMessage;
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/**
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* Creates a client-side handler.
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*/
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public SctpEchoClientHandler() {
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firstMessage = Unpooled.buffer(SctpEchoClient.SIZE);
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for (int i = 0; i < firstMessage.capacity(); i++) {
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firstMessage.writeByte((byte) i);
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}
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}
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@Override
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public void channelActive(ChannelHandlerContext ctx) {
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ctx.writeAndFlush(new SctpMessage(0, 0, firstMessage));
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}
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@Override
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public void channelRead(ChannelHandlerContext ctx, Object msg) {
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ctx.write(msg);
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}
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@Override
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public void channelReadComplete(ChannelHandlerContext ctx) {
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ctx.flush();
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}
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@Override
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public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
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// Close the connection when an exception is raised.
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cause.printStackTrace();
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ctx.close();
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}
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}
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