content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.nacos.api.cmdb.spi;
  
  import com.alibaba.nacos.api.cmdb.pojo.Entity;
  import com.alibaba.nacos.api.cmdb.pojo.EntityEvent;
  import com.alibaba.nacos.api.cmdb.pojo.Label;
  
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  /**
   * Service to visit CMDB store
   *
   * @author nkorange
   * @since 0.7.0
   */
  public interface CmdbService {
  
      /**
       * Get all label names stored in CMDB
       *
       * @return label name set
       */
      Set<String> getLabelNames();
  
      /**
       * Get all possible entity types in CMDB
       *
       * @return all entity types
       */
      Set<String> getEntityTypes();
  
      /**
       * Get label info
       *
       * @param labelName label name
       * @return label info
       */
      Label getLabel(String labelName);
  
      /**
       * Get label value of label name of ip
       *
       * @param entityName entity name
       * @param entityType  entity type
       * @param labelName   target label name
       * @return label value
       */
      String getLabelValue(String entityName, String entityType, String labelName);
  
      /**
       * Get all label value of ip
       *
       * @param entityName entity name
       * @param entityType  entity type
       * @return all label values
       */
      Map<String, String> getLabelValues(String entityName, String entityType);
  
      /**
       * Dump all entities in CMDB
       *
       * @return all entities
       */
      Map<String, Map<String, Entity>> getAllEntities();
  
      /**
       * get label change events
       *
       * @param timestamp start time of generated events
       * @return label events
       */
      List<EntityEvent> getEntityEvents(long timestamp);
  
      /**
       * Get single entity
       *
       * @param entityName name of entity
       * @param entityType type of entity
       * @return
       */
      Entity getEntity(String entityName, String entityType);
  }
  