content: /*
   * 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.celeborn.server.common.service.store.db;
  
  import java.io.IOException;
  import java.util.Map;
  import java.util.Properties;
  
  import javax.sql.DataSource;
  
  import com.zaxxer.hikari.HikariConfig;
  import com.zaxxer.hikari.HikariDataSource;
  import org.apache.ibatis.mapping.Environment;
  import org.apache.ibatis.session.Configuration;
  import org.apache.ibatis.session.SqlSessionFactory;
  import org.apache.ibatis.session.SqlSessionFactoryBuilder;
  import org.apache.ibatis.transaction.TransactionFactory;
  import org.apache.ibatis.transaction.jdbc.JdbcTransactionFactory;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.apache.celeborn.common.CelebornConf;
  import org.apache.celeborn.server.common.service.store.db.mapper.ClusterInfoMapper;
  import org.apache.celeborn.server.common.service.store.db.mapper.ClusterSystemConfigMapper;
  import org.apache.celeborn.server.common.service.store.db.mapper.ClusterTagsMapper;
  import org.apache.celeborn.server.common.service.store.db.mapper.ClusterTenantConfigMapper;
  
  public class DBSessionFactory {
    private static final Logger LOG = LoggerFactory.getLogger(DBSessionFactory.class);
    private static volatile SqlSessionFactory _instance;
  
    public static SqlSessionFactory get(CelebornConf celebornConf) throws IOException {
      if (_instance == null) {
        synchronized (DBSessionFactory.class) {
          if (_instance == null) {
            Properties properties = new Properties();
            properties.setProperty(
                "driverClassName", celebornConf.dynamicConfigStoreDbHikariDriverClassName());
            properties.setProperty("jdbcUrl", celebornConf.dynamicConfigStoreDbHikariJdbcUrl());
            properties.setProperty("username", celebornConf.dynamicConfigStoreDbHikariUsername());
            properties.setProperty("password", celebornConf.dynamicConfigStoreDbHikariPassword());
            properties.setProperty(
                "connectionTimeout",
                String.valueOf(celebornConf.dynamicConfigStoreDbHikariConnectionTimeout()));
            properties.setProperty(
                "idleTimeout", String.valueOf(celebornConf.dynamicConfigStoreDbHikariIdleTimeout()));
            properties.setProperty(
                "maxLifetime", String.valueOf(celebornConf.dynamicConfigStoreDbHikariMaxLifetime()));
            properties.setProperty(
                "maximumPoolSize",
                String.valueOf(celebornConf.dynamicConfigStoreDbHikariMaximumPoolSize()));
  
            for (Map.Entry<String, String> dbPropertiesEntry :
                celebornConf.dynamicConfigStoreDbHikariCustomConfigs().entrySet()) {
              properties.setProperty(
                  dbPropertiesEntry.getKey().replace("celeborn.dynamicConfig.store.db.hikari.", ""),
                  dbPropertiesEntry.getValue());
            }
  
            HikariConfig config = new HikariConfig(properties);
            DataSource dataSource = new HikariDataSource(config);
  
            TransactionFactory transactionFactory = new JdbcTransactionFactory();
            Environment environment = new Environment("celeborn", transactionFactory, dataSource);
  
            Configuration configuration = new Configuration(environment);
            configuration.setMapUnderscoreToCamelCase(true);
            configuration.addMapper(ClusterInfoMapper.class);
            configuration.addMapper(ClusterSystemConfigMapper.class);
            configuration.addMapper(ClusterTenantConfigMapper.class);
            configuration.addMapper(ClusterTagsMapper.class);
  
            SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
            _instance = builder.build(configuration);
            LOG.info("Init sqlSessionFactory success");
          }
        }
      }
  
      return _instance;
    }
  }
  