/*
    * 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.shardingsphere.mode.manager.switcher;
  
  import lombok.Getter;
  import lombok.RequiredArgsConstructor;
  import org.apache.shardingsphere.infra.datasource.pool.destroyer.DataSourcePoolDestroyer;
  import org.apache.shardingsphere.infra.datasource.pool.props.domain.DataSourcePoolProperties;
  import org.apache.shardingsphere.infra.metadata.database.resource.node.StorageNode;
  
  import javax.sql.DataSource;
  import java.util.Collection;
  import java.util.Map;
  import java.util.Objects;
  
  /**
   * Switching resource.
   */
  @RequiredArgsConstructor
  @Getter
  public final class SwitchingResource {
      
      private final Map<StorageNode, DataSource> newDataSources;
      
      private final Map<StorageNode, DataSource> staleDataSources;
      
      private final Collection<String> staleStorageUnitNames;
      
      private final Map<String, DataSourcePoolProperties> mergedDataSourcePoolPropertiesMap;
      
      /**
       * Close stale data sources.
       */
      public void closeStaleDataSources() {
          staleDataSources.values().stream().filter(Objects::nonNull).forEach(each -> new DataSourcePoolDestroyer(each).asyncDestroy());
      }
  }