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.
150 lines
5.5 KiB
Java
150 lines
5.5 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.channel.local;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.bootstrap.ServerBootstrap;
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import io.netty.channel.AbstractChannel;
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import io.netty.channel.Channel;
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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.ChannelInitializer;
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import io.netty.channel.EventLoopGroup;
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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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import org.junit.Test;
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import java.nio.channels.ClosedChannelException;
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import java.util.concurrent.CountDownLatch;
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import static org.hamcrest.CoreMatchers.*;
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import static org.junit.Assert.*;
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public class LocalChannelTest {
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private static final InternalLogger logger = InternalLoggerFactory.getInstance(LocalChannelTest.class);
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private static final String LOCAL_ADDR_ID = "test.id";
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@Test
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public void testLocalAddressReuse() throws Exception {
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for (int i = 0; i < 2; i ++) {
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EventLoopGroup clientGroup = new LocalEventLoopGroup();
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EventLoopGroup serverGroup = new LocalEventLoopGroup();
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LocalAddress addr = new LocalAddress(LOCAL_ADDR_ID);
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Bootstrap cb = new Bootstrap();
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ServerBootstrap sb = new ServerBootstrap();
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cb.group(clientGroup)
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.channel(LocalChannel.class)
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.handler(new TestHandler());
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sb.group(serverGroup)
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.channel(LocalServerChannel.class)
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.childHandler(new ChannelInitializer<LocalChannel>() {
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@Override
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public void initChannel(LocalChannel ch) throws Exception {
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ch.pipeline().addLast(new TestHandler());
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}
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});
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// Start server
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Channel sc = sb.bind(addr).sync().channel();
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final CountDownLatch latch = new CountDownLatch(1);
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// Connect to the server
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final Channel cc = cb.connect(addr).sync().channel();
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cc.eventLoop().execute(new Runnable() {
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@Override
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public void run() {
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// Send a message event up the pipeline.
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cc.pipeline().fireChannelRead("Hello, World");
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latch.countDown();
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}
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});
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latch.await();
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// Close the channel
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cc.close().sync();
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serverGroup.shutdownGracefully();
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clientGroup.shutdownGracefully();
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sc.closeFuture().sync();
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assertNull(String.format(
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"Expected null, got channel '%s' for local address '%s'",
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LocalChannelRegistry.get(addr), addr), LocalChannelRegistry.get(addr));
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serverGroup.terminationFuture().sync();
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clientGroup.terminationFuture().sync();
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}
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}
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@Test
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public void testWriteFailsFastOnClosedChannel() throws Exception {
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EventLoopGroup clientGroup = new LocalEventLoopGroup();
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EventLoopGroup serverGroup = new LocalEventLoopGroup();
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LocalAddress addr = new LocalAddress(LOCAL_ADDR_ID);
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Bootstrap cb = new Bootstrap();
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ServerBootstrap sb = new ServerBootstrap();
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cb.group(clientGroup)
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.channel(LocalChannel.class)
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.handler(new TestHandler());
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sb.group(serverGroup)
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.channel(LocalServerChannel.class)
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.childHandler(new ChannelInitializer<LocalChannel>() {
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@Override
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public void initChannel(LocalChannel ch) throws Exception {
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ch.pipeline().addLast(new TestHandler());
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}
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});
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// Start server
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sb.bind(addr).sync();
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// Connect to the server
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final Channel cc = cb.connect(addr).sync().channel();
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// Close the channel and write something.
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cc.close().sync();
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try {
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cc.writeAndFlush(new Object()).sync();
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fail("must raise a ClosedChannelException");
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} catch (Exception e) {
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assertThat(e, is(instanceOf(ClosedChannelException.class)));
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// Ensure that the actual write attempt on a closed channel was never made by asserting that
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// the ClosedChannelException has been created by AbstractUnsafe rather than transport implementations.
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assertThat(e.getStackTrace()[0].getClassName(), is(AbstractChannel.class.getName() + "$AbstractUnsafe"));
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e.printStackTrace();
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}
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serverGroup.shutdownGracefully();
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clientGroup.shutdownGracefully();
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serverGroup.terminationFuture().sync();
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clientGroup.terminationFuture().sync();
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}
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static class TestHandler extends ChannelInboundHandlerAdapter {
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@Override
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public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
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logger.info(String.format("Received mesage: %s", msg));
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}
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}
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}
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