Java example source code file (ServerBootstrapTest.java)

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Java - Java tags/keywords

atomicreference, channelhandleradapter, channelinboundhandleradapter, countdownlatch, exception, localeventloopgroup, override, serverbootstrap, serverbootstraptest, test, threading, threads, throwable

The ServerBootstrapTest.java Java example source code

/*
 * Copyright 2015 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.bootstrap;

import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.local.LocalEventLoopGroup;
import io.netty.channel.local.LocalServerChannel;
import org.junit.Test;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;

import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

public class ServerBootstrapTest {

    @Test(timeout = 5000)
    public void testHandlerRegister() throws Exception {
        final CountDownLatch latch = new CountDownLatch(1);
        final AtomicReference<Throwable> error = new AtomicReference();
        LocalEventLoopGroup group = new LocalEventLoopGroup(1);
        try {
            ServerBootstrap sb = new ServerBootstrap();
            sb.channel(LocalServerChannel.class)
              .group(group)
              .childHandler(new ChannelInboundHandlerAdapter())
              .handler(new ChannelHandlerAdapter() {
                  @Override
                  public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
                      try {
                          assertTrue(ctx.executor().inEventLoop());
                      } catch (Throwable cause) {
                          error.set(cause);
                      } finally {
                          latch.countDown();
                      }
                  }
              });
            sb.register().syncUninterruptibly();
            latch.await();
            assertNull(error.get());
        } finally {
            group.shutdownGracefully();
        }
    }
}