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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.config.deploy;
import org.apache.dubbo.common.extension.ExtensionLoader;
import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.rpc.Protocol;
import org.apache.dubbo.rpc.model.FrameworkModel;
import org.apache.dubbo.rpc.model.ScopeModelDestroyListener;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.apache.dubbo.common.constants.LoggerCodeConstants.CONFIG_UNDEFINED_PROTOCOL;
/**
* A cleaner to release resources of framework model
*/
public class FrameworkModelCleaner implements ScopeModelDestroyListener {
private static final ErrorTypeAwareLogger logger = LoggerFactory.getErrorTypeAwareLogger(FrameworkModelCleaner.class);
private final AtomicBoolean protocolDestroyed = new AtomicBoolean(false);
@Override
public boolean isProtocol() {
return true;
}
@Override
public void onDestroy(FrameworkModel frameworkModel) {
destroyFrameworkResources(frameworkModel);
}
/**
* Destroy all framework resources.
*/
private void destroyFrameworkResources(FrameworkModel frameworkModel) {
// destroy protocol in framework scope
destroyProtocols(frameworkModel);
}
/**
* Destroy all the protocols.
*/
private void destroyProtocols(FrameworkModel frameworkModel) {
if (protocolDestroyed.compareAndSet(false, true)) {
ExtensionLoader loader = frameworkModel.getExtensionLoader(Protocol.class);
for (String protocolName : loader.getLoadedExtensions()) {
try {
Protocol protocol = loader.getLoadedExtension(protocolName);
if (protocol != null) {
protocol.destroy();
}
} catch (Throwable t) {
logger.warn(CONFIG_UNDEFINED_PROTOCOL, "", "", t.getMessage(), t);
}
}
}
}
}