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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.metadata;
import org.apache.dubbo.common.deploy.ApplicationDeployListener;
import org.apache.dubbo.common.lang.Prioritized;
import org.apache.dubbo.common.utils.StringUtils;
import org.apache.dubbo.registry.client.metadata.MetadataServiceDelegation;
import org.apache.dubbo.rpc.model.ApplicationModel;
import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_METADATA_STORAGE_TYPE;
import static org.apache.dubbo.common.constants.CommonConstants.REMOTE_METADATA_STORAGE_TYPE;
public class ExporterDeployListener implements ApplicationDeployListener, Prioritized {
protected volatile ConfigurableMetadataServiceExporter metadataServiceExporter;
@Override
public void onStarting(ApplicationModel scopeModel) {
}
@Override
public synchronized void onStarted(ApplicationModel applicationModel) {
}
@Override
public synchronized void onStopping(ApplicationModel scopeModel) {
}
private String getMetadataType(ApplicationModel applicationModel) {
String type = applicationModel.getApplicationConfigManager().getApplicationOrElseThrow().getMetadataType();
if (StringUtils.isEmpty(type)) {
type = DEFAULT_METADATA_STORAGE_TYPE;
}
return type;
}
public ConfigurableMetadataServiceExporter getMetadataServiceExporter() {
return metadataServiceExporter;
}
public void setMetadataServiceExporter(ConfigurableMetadataServiceExporter metadataServiceExporter) {
this.metadataServiceExporter = metadataServiceExporter;
}
@Override
public synchronized void onModuleStarted(ApplicationModel applicationModel) {
// start metadata service exporter
MetadataServiceDelegation metadataService = applicationModel.getBeanFactory().getOrRegisterBean(MetadataServiceDelegation.class);
if (metadataServiceExporter == null) {
metadataServiceExporter = new ConfigurableMetadataServiceExporter(applicationModel, metadataService);
// fixme, let's disable local metadata service export at this moment
if (!REMOTE_METADATA_STORAGE_TYPE.equals(getMetadataType(applicationModel))) {
metadataServiceExporter.export();
}
}
}
@Override
public synchronized void onStopped(ApplicationModel scopeModel) {
if (metadataServiceExporter != null && metadataServiceExporter.isExported()) {
try {
metadataServiceExporter.unexport();
} catch (Exception ignored) {
// ignored
}
}
}
@Override
public void onFailure(ApplicationModel scopeModel, Throwable cause) {
}
@Override
public int getPriority() {
return MAX_PRIORITY;
}
}