org.smallmind.persistence.sql.pool.DataSourceComponentInstanceFactory Maven / Gradle / Ivy

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/*
 * Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 David Berkman
 * 
 * This file is part of the SmallMind Code Project.
 * 
 * The SmallMind Code Project is free software, you can redistribute
 * it and/or modify it under either, at your discretion...
 * 
 * 1) The terms of GNU Affero General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 * 
 * ...or...
 * 
 * 2) The terms of the Apache License, Version 2.0.
 * 
 * The SmallMind Code Project is distributed in the hope that it will
 * be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License or Apache License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * and the Apache License along with the SmallMind Code Project. If not, see
 *  or .
 * 
 * Additional permission under the GNU Affero GPL version 3 section 7
 * ------------------------------------------------------------------
 * If you modify this Program, or any covered work, by linking or
 * combining it with other code, such other code is not for that reason
 * alone subject to any of the requirements of the GNU Affero GPL
 * version 3.
 */
package org.smallmind.persistence.sql.pool;

import java.lang.reflect.Array;
import java.sql.SQLException;
import javax.sql.CommonDataSource;
import javax.sql.ConnectionPoolDataSource;
import javax.sql.PooledConnection;
import org.smallmind.persistence.sql.OmnivorousConnectionPoolDataSource;

public class DataSourceComponentInstanceFactory extends PooledConnectionComponentInstanceFactory {

  public DataSourceComponentInstanceFactory (DataSourceFactory dataSourceFactory, String jdbcUrl, String user, String password)
    throws SQLException {

    this(dataSourceFactory, jdbcUrl, user, password, 0);
  }

  public DataSourceComponentInstanceFactory (DataSourceFactory dataSourceFactory, String jdbcUrl, String user, String password, int maxStatements)
    throws SQLException {

    this(dataSourceFactory, maxStatements, new ConnectionEndpoint(jdbcUrl, user, password));
  }

  public DataSourceComponentInstanceFactory (DataSourceFactory dataSourceFactory, ConnectionEndpoint... endpoints)
    throws SQLException {

    this(dataSourceFactory, 0, endpoints);
  }

  public DataSourceComponentInstanceFactory (DataSourceFactory dataSourceFactory, int maxStatements, ConnectionEndpoint... endpoints)
    throws SQLException {

    this(maxStatements, dataSourceFactory.getPooledConnectionClass(), constructDataSources(dataSourceFactory, endpoints));
  }

  public DataSourceComponentInstanceFactory (int maxStatements, Class
 pooledConnectionClass, D... dataSources) {

    super(60, pooledConnectionClass, constructConnectionPoolDataSources(maxStatements, pooledConnectionClass, dataSources));
  }

  private static  D[] constructDataSources (DataSourceFactory dataSourceFactory, ConnectionEndpoint... endpoints)
    throws SQLException {

    D[] dataSources = (D[])Array.newInstance(dataSourceFactory.getDataSourceClass(), endpoints.length);

    for (int index = 0; index < endpoints.length; index++) {
      dataSources[index] = dataSourceFactory.constructDataSource(endpoints[index].getJdbcUrl(), endpoints[index].getUser(), endpoints[index].getPassword());
    }

    return dataSources;
  }

  private static  ConnectionPoolDataSource[] constructConnectionPoolDataSources (int maxStatements, Class connectionPoolClass, D... dataSources) {

    ConnectionPoolDataSource[] connectionPoolDataSources = new ConnectionPoolDataSource[dataSources.length];

    for (int index = 0; index < dataSources.length; index++) {
      connectionPoolDataSources[index] = new OmnivorousConnectionPoolDataSource(dataSources[index], connectionPoolClass, maxStatements);
    }

    return connectionPoolDataSources;
  }
}