| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF 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 org.apache.camel.component.netty; |
| |
| import java.net.InetSocketAddress; |
| import java.util.List; |
| |
| import io.netty.bootstrap.Bootstrap; |
| import io.netty.channel.Channel; |
| import io.netty.channel.ChannelHandlerContext; |
| import io.netty.channel.ChannelInitializer; |
| import io.netty.channel.EventLoopGroup; |
| import io.netty.channel.SimpleChannelInboundHandler; |
| import io.netty.channel.nio.NioEventLoopGroup; |
| import io.netty.channel.socket.DatagramPacket; |
| import io.netty.channel.socket.nio.NioDatagramChannel; |
| import io.netty.handler.codec.MessageToMessageDecoder; |
| import io.netty.util.CharsetUtil; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.junit.Test; |
| |
| public class NettyUdpConnectionlessSendTest extends BaseNettyTest { |
| private static final String SEND_STRING = "***<We all love camel>***"; |
| private static final int SEND_COUNT = 20; |
| private volatile int receivedCount; |
| private EventLoopGroup group; |
| private Bootstrap bootstrap; |
| |
| public void createNettyUdpReceiver() { |
| group = new NioEventLoopGroup(); |
| bootstrap = new Bootstrap(); |
| bootstrap.group(group) |
| .channel(NioDatagramChannel.class) |
| .handler(new ChannelInitializer<Channel>() { |
| @Override |
| protected void initChannel(Channel channel) throws Exception { |
| channel.pipeline().addLast(new UdpHandler()); |
| channel.pipeline().addLast(new ContentHandler()); |
| } |
| }).localAddress(new InetSocketAddress(getPort())); |
| } |
| |
| |
| public void bind() { |
| bootstrap.bind().syncUninterruptibly(); |
| } |
| |
| public void stop() { |
| group.shutdownGracefully().syncUninterruptibly(); |
| } |
| |
| @Test |
| public void sendConnectionlessUdp() throws Exception { |
| createNettyUdpReceiver(); |
| bind(); |
| for (int i = 0; i < SEND_COUNT; ++i) { |
| template.sendBody("direct:in", SEND_STRING); |
| } |
| stop(); |
| assertTrue("We should have received some datagrams", receivedCount > 0); |
| |
| } |
| |
| @Test |
| public void sendWithoutReceiver() throws Exception { |
| int exceptionCount = 0; |
| for (int i = 0; i < SEND_COUNT; ++i) { |
| try { |
| template.sendBody("direct:in", SEND_STRING); |
| } catch (Exception ex) { |
| ++exceptionCount; |
| } |
| } |
| assertEquals("No exception should occur", 0, exceptionCount); |
| } |
| |
| @Override |
| protected RouteBuilder createRouteBuilder() throws Exception { |
| return new RouteBuilder() { |
| @Override |
| public void configure() throws Exception { |
| from("direct:in").to("netty:udp://localhost:{{port}}?sync=false&textline=true&udpConnectionlessSending=true"); |
| } |
| }; |
| } |
| |
| public class UdpHandler extends MessageToMessageDecoder<DatagramPacket> { |
| @Override |
| protected void decode(ChannelHandlerContext channelHandlerContext, DatagramPacket datagramPacket, List<Object> objects) throws Exception { |
| objects.add(datagramPacket.content().toString(CharsetUtil.UTF_8)); |
| } |
| } |
| |
| public class ContentHandler extends SimpleChannelInboundHandler<String> { |
| @Override |
| protected void channelRead0(ChannelHandlerContext channelHandlerContext, String s) throws Exception { |
| ++receivedCount; |
| } |
| } |
| } |