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/*
* 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.dubbo.qos.protocol;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.extension.Activate;
import org.apache.dubbo.common.logger.Logger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.qos.common.QosConstants;
import org.apache.dubbo.qos.server.Server;
import org.apache.dubbo.rpc.Exporter;
import org.apache.dubbo.rpc.Invoker;
import org.apache.dubbo.rpc.Protocol;
import org.apache.dubbo.rpc.ProtocolServer;
import org.apache.dubbo.rpc.RpcException;
import org.apache.dubbo.rpc.model.FrameworkModel;
import org.apache.dubbo.rpc.model.ScopeModelAware;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.apache.dubbo.common.constants.QosConstants.ACCEPT_FOREIGN_IP;
import static org.apache.dubbo.common.constants.QosConstants.QOS_ENABLE;
import static org.apache.dubbo.common.constants.QosConstants.QOS_HOST;
import static org.apache.dubbo.common.constants.QosConstants.QOS_PORT;
@Activate(order = 200)
public class QosProtocolWrapper implements Protocol, ScopeModelAware {
private final Logger logger = LoggerFactory.getLogger(QosProtocolWrapper.class);
private AtomicBoolean hasStarted = new AtomicBoolean(false);
private Protocol protocol;
private FrameworkModel frameworkModel;
public QosProtocolWrapper(Protocol protocol) {
if (protocol == null) {
throw new IllegalArgumentException("protocol == null");
}
this.protocol = protocol;
}
@Override
public void setFrameworkModel(FrameworkModel frameworkModel) {
this.frameworkModel = frameworkModel;
}
@Override
public int getDefaultPort() {
return protocol.getDefaultPort();
}
@Override
public Exporter export(Invoker invoker) throws RpcException {
startQosServer(invoker.getUrl());
return protocol.export(invoker);
}
@Override
public Invoker refer(Class type, URL url) throws RpcException {
startQosServer(url);
return protocol.refer(type, url);
}
@Override
public void destroy() {
protocol.destroy();
stopServer();
}
@Override
public List getServers() {
return protocol.getServers();
}
private void startQosServer(URL url) {
try {
if (!hasStarted.compareAndSet(false, true)) {
return;
}
boolean qosEnable = url.getParameter(QOS_ENABLE, true);
if (!qosEnable) {
logger.info("qos won't be started because it is disabled. " +
"Please check dubbo.application.qos.enable is configured either in system property, " +
"dubbo.properties or XML/spring-boot configuration.");
return;
}
String host = url.getParameter(QOS_HOST);
int port = url.getParameter(QOS_PORT, QosConstants.DEFAULT_PORT);
boolean acceptForeignIp = Boolean.parseBoolean(url.getParameter(ACCEPT_FOREIGN_IP, "false"));
Server server = frameworkModel.getBeanFactory().getBean(Server.class);
server.setHost(host);
server.setPort(port);
server.setAcceptForeignIp(acceptForeignIp);
server.start();
} catch (Throwable throwable) {
logger.warn("Fail to start qos server: ", throwable);
}
}
/*package*/ void stopServer() {
if (hasStarted.compareAndSet(true, false)) {
Server server = frameworkModel.getBeanFactory().getBean(Server.class);
server.stop();
}
}
}