| /* |
| * 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 org.apache.dubbo.common.utils.CollectionUtils; |
| |
| import com.alibaba.nacos.api.naming.pojo.Instance; |
| import com.alibaba.nacos.shaded.com.google.common.collect.Lists; |
| import com.alibaba.nacos.shaded.com.google.common.collect.Maps; |
| |
| 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<String, List<Instance>> SERVICE_INSTANCE_LIST_MAP = Maps.newConcurrentMap(); |
| |
| /** |
| * serviceName -> corresponding serviceName list |
| */ |
| private static final Map<String, Set<String>> CORRESPONDING_SERVICE_NAMES_MAP = Maps.newConcurrentMap(); |
| |
| public static void setCorrespondingServiceNames(String serviceName, Set<String> serviceNames) { |
| CORRESPONDING_SERVICE_NAMES_MAP.put(serviceName, serviceNames); |
| } |
| |
| public static void initOrRefreshServiceInstanceList(String serviceName, List<Instance> instanceList) { |
| SERVICE_INSTANCE_LIST_MAP.put(serviceName, instanceList); |
| } |
| |
| public static Set<String> removeCorrespondingServiceNames(String serviceName) { |
| return CORRESPONDING_SERVICE_NAMES_MAP.remove(serviceName); |
| } |
| |
| public static List<Instance> getAllCorrespondingServiceInstanceList(String serviceName) { |
| if (!CORRESPONDING_SERVICE_NAMES_MAP.containsKey(serviceName)) { |
| return Lists.newArrayList(); |
| } |
| List<Instance> 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; |
| } |
| |
| } |