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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.registry.nacos.util;
import com.alibaba.nacos.api.naming.pojo.Instance;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import org.apache.dubbo.common.utils.CollectionUtils;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Instance manage util for multiple serviceNames
* To resolve bug with https://github.com/apache/dubbo/issues/5885 and https://github.com/apache/dubbo/issues/5899
*
* @since 2.7.6
*/
public class NacosInstanceManageUtil {
/**
* serviceName -> refreshed instance list
*/
private static final Map> SERVICE_INSTANCE_LIST_MAP = Maps.newConcurrentMap();
/**
* serviceName -> corresponding serviceName list
*/
private static final Map> CORRESPONDING_SERVICE_NAMES_MAP = Maps.newConcurrentMap();
public static void setCorrespondingServiceNames(String serviceName, Set serviceNames) {
CORRESPONDING_SERVICE_NAMES_MAP.put(serviceName, serviceNames);
}
public static void initOrRefreshServiceInstanceList(String serviceName, List instanceList) {
SERVICE_INSTANCE_LIST_MAP.put(serviceName, instanceList);
}
public static List getAllCorrespondingServiceInstanceList(String serviceName) {
if (!CORRESPONDING_SERVICE_NAMES_MAP.containsKey(serviceName)) {
return Lists.newArrayList();
}
List allInstances = Lists.newArrayList();
for (String correspondingServiceName : CORRESPONDING_SERVICE_NAMES_MAP.get(serviceName)) {
if (SERVICE_INSTANCE_LIST_MAP.containsKey(correspondingServiceName) && CollectionUtils.isNotEmpty(SERVICE_INSTANCE_LIST_MAP.get(correspondingServiceName))) {
allInstances.addAll(SERVICE_INSTANCE_LIST_MAP.get(correspondingServiceName));
}
}
return allInstances;
}
}