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package de.akquinet.jbosscc.guttenbase.connector.impl;

import de.akquinet.jbosscc.guttenbase.repository.ConnectorRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

/**
 * Connection info via explicit URL and driver.
 *
 * 
 * © 2012-2034 akquinet tech@spree
 * 
 *
 * @author M. Dahm
 */
public abstract class AbstractURLConnector extends AbstractConnector {
  protected static final Logger LOG = LoggerFactory.getLogger(AbstractURLConnector.class);

  private final URLConnectorInfo _urlConnectionInfo;

  public AbstractURLConnector(final ConnectorRepository connectorRepository, final String connectorId,
                              final URLConnectorInfo urlConnectionInfo) {
    super(connectorRepository, connectorId, urlConnectionInfo);

    assert urlConnectionInfo != null : "urlConnectionInfo != null";
    _urlConnectionInfo = urlConnectionInfo;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public Connection openConnection() throws SQLException {
    if (_connection == null || _connection.isClosed()) {
      try {
        Class.forName(_urlConnectionInfo.getDriver()).getDeclaredConstructor().newInstance();
      } catch (final Exception e) {
        LOG.error("JDBC driver not found", e);
        throw new SQLException("Creating JDBC driver", e);
      }

      _connection = DriverManager
          .getConnection(_urlConnectionInfo.getUrl(), _urlConnectionInfo.getUser(), _urlConnectionInfo.getPassword());
    }

    return _connection;
  }
}