content: /*
   * Copyright [2021-present] [ahoo wang <ahoowang@qq.com> (https://github.com/Ahoo-Wang)].
   * 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 me.ahoo.cosid.jdbc;
  
  import me.ahoo.cosid.segment.DefaultSegmentId;
  import me.ahoo.cosid.segment.SegmentChainId;
  
  import com.zaxxer.hikari.HikariDataSource;
  
  import javax.sql.DataSource;
  import java.util.concurrent.atomic.AtomicInteger;
  
  /**
   * @author ahoo wang
   */
  public class DataSourceFactory {
  
      public static final DataSourceFactory INSTANCE = new DataSourceFactory();
  
      AtomicInteger counter = new AtomicInteger();
      private DataSource dataSource;
  
      private DataSourceFactory() {
  
      }
  
      public synchronized DataSource createDataSource() {
          if (dataSource != null) {
              return dataSource;
          }
          HikariDataSource hikariDataSource = new HikariDataSource();
          hikariDataSource.setJdbcUrl("jdbc:mysql://localhost:3306/cosid_db");
          hikariDataSource.setUsername("root");
          hikariDataSource.setPassword("root");
          dataSource = hikariDataSource;
          return dataSource;
      }
  
      public JdbcIdSegmentDistributor createJdbcDistributor(int step) {
          DataSource dataSource = createDataSource();
          return createJdbcDistributor(dataSource, step);
      }
  
      public JdbcIdSegmentDistributor createJdbcDistributor(DataSource dataSource, int step) {
          String namespace = "jbh-" + counter.incrementAndGet();
  
          JdbcIdSegmentInitializer jdbcIdSegmentInitializer = new JdbcIdSegmentInitializer(dataSource);
          JdbcIdSegmentDistributor jdbcIdSegmentDistributor = new JdbcIdSegmentDistributor(namespace, String.valueOf(step), step, dataSource);
          jdbcIdSegmentInitializer.tryInitIdSegment(jdbcIdSegmentDistributor.getNamespacedName(), 0);
          return jdbcIdSegmentDistributor;
      }
  
      public DefaultSegmentId createSegmentId(int step) {
          JdbcIdSegmentDistributor distributor = createJdbcDistributor(step);
          return new DefaultSegmentId(distributor);
      }
  
  
      public SegmentChainId createSegmentChainId(int step) {
          JdbcIdSegmentDistributor distributor = createJdbcDistributor(step);
          return new SegmentChainId(distributor);
      }
  
  }
  