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Netty blocking I/O API test
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
import org.jboss.netty.bootstrap.ClientBootstrap;
import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.ExceptionEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
import org.jboss.netty.channel.socket.oio.OioClientSocketChannelFactory;
import org.jboss.netty.channel.socket.oio.OioServerSocketChannelFactory;
import org.jboss.netty.util.CharsetUtil;
import org.junit.Test;
public class OioServerTest {
@Test
public void testNio() {
ServerBootstrap server = new ServerBootstrap(
new NioServerSocketChannelFactory(
Executors.newCachedThreadPool(),
Executors.newCachedThreadPool()));
server.setPipelineFactory(new ChannelPipelineFactory() {
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("discard", new DiscardServerHandler());
return pipeline;
}
});
Channel serverBind = server.bind(new InetSocketAddress(10000));
ClientBootstrap client = new ClientBootstrap(
new NioClientSocketChannelFactory(
Executors.newCachedThreadPool(),
Executors.newCachedThreadPool()));
client.setPipelineFactory(new ChannelPipelineFactory() {
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
return pipeline;
}
});
Channel channel = client.connect(new InetSocketAddress("127.0.0.1", 10000)).awaitUninterruptibly().getChannel();
channel.write(ChannelBuffers.copiedBuffer("foo", CharsetUtil.UTF_8));
channel.close();
client.releaseExternalResources();
//Nio may pass without it. Oio will hang on server.releaseExternalResources() without closing this channel.
serverBind.close().awaitUninterruptibly();
server.releaseExternalResources();
}
@Test
public void testOio() {
ServerBootstrap server = new ServerBootstrap(
new OioServerSocketChannelFactory(
Executors.newCachedThreadPool(),
Executors.newCachedThreadPool()));
server.setPipelineFactory(new ChannelPipelineFactory() {
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("discard", new DiscardServerHandler());
return pipeline;
}
});
Channel serverBind = server.bind(new InetSocketAddress(10000));
ClientBootstrap client = new ClientBootstrap(
new OioClientSocketChannelFactory(
Executors.newCachedThreadPool()));
client.setPipelineFactory(new ChannelPipelineFactory() {
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("discard", new DiscardServerHandler());
return pipeline;
}
});
Channel channel = client.connect(new InetSocketAddress("127.0.0.1", 10000)).awaitUninterruptibly().getChannel();
channel.write(ChannelBuffers.copiedBuffer("foo", CharsetUtil.UTF_8));
channel.close();
client.releaseExternalResources();
//Nio may pass without it. Oio will hang on server.releaseExternalResources() without closing this channel.
serverBind.close().awaitUninterruptibly();
server.releaseExternalResources();
}
class DiscardServerHandler extends SimpleChannelUpstreamHandler {
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {
e.getChannel().close();
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) {
e.getChannel().close();
}
}
}
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