org.springframework.boot.rsocket.netty.NettyRSocketServer Maven / Gradle / Ivy
/*
* Copyright 2012-2019 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.boot.rsocket.netty;
import java.net.InetSocketAddress;
import java.time.Duration;
import io.rsocket.transport.netty.server.CloseableChannel;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import reactor.core.publisher.Mono;
import org.springframework.boot.rsocket.server.RSocketServer;
import org.springframework.boot.rsocket.server.RSocketServerException;
import org.springframework.util.Assert;
/**
* {@link RSocketServer} that is based on a Reactor Netty server. Usually this class
* should be created using the {@link NettyRSocketServerFactory} and not directly.
*
* @author Brian Clozel
* @since 2.2.0
*/
public class NettyRSocketServer implements RSocketServer {
private static final Log logger = LogFactory.getLog(NettyRSocketServer.class);
private final Mono starter;
private final Duration lifecycleTimeout;
private CloseableChannel channel;
public NettyRSocketServer(Mono starter, Duration lifecycleTimeout) {
Assert.notNull(starter, "starter must not be null");
this.starter = starter;
this.lifecycleTimeout = lifecycleTimeout;
}
@Override
public InetSocketAddress address() {
if (this.channel != null) {
return this.channel.address();
}
return null;
}
@Override
public void start() throws RSocketServerException {
this.channel = block(this.starter, this.lifecycleTimeout);
logger.info("Netty RSocket started on port(s): " + address().getPort());
startDaemonAwaitThread(this.channel);
}
private void startDaemonAwaitThread(CloseableChannel channel) {
Thread awaitThread = new Thread(() -> channel.onClose().block(), "rsocket");
awaitThread.setContextClassLoader(getClass().getClassLoader());
awaitThread.setDaemon(false);
awaitThread.start();
}
@Override
public void stop() throws RSocketServerException {
if (this.channel != null) {
this.channel.dispose();
this.channel = null;
}
}
private T block(Mono mono, Duration timeout) {
return (timeout != null) ? mono.block(timeout) : mono.block();
}
}