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PostgreSQL JDBC - NG - Driver
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/**
 * Copyright (c) 2013, impossibl.com
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  * Neither the name of impossibl.com nor the names of its contributors may
 *    be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package com.impossibl.postgres.jdbc;

import static com.impossibl.postgres.jdbc.Exceptions.UNWRAP_ERROR;

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

import javax.naming.Reference;
import javax.naming.Referenceable;
import javax.sql.DataSource;

/**
 * DataSource implementation
 * @author Jesper Pedersen
 */
public class PGDataSource extends AbstractGeneratedDataSource implements DataSource, Referenceable {

  /**
   * Constructor
   */
  public PGDataSource() {
    super();
  }

  @Override
  public String getDescription() {
    return PGDriver.NAME + " - Data Source";
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public Connection getConnection() throws SQLException {
    return getConnection(getUser(), getPassword());
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public Connection getConnection(String user, String password) throws SQLException {
    return APITracing.setupIfEnabled(createConnection(user, password), settings);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public  T unwrap(Class iface) throws SQLException {
    if (!iface.isAssignableFrom(getClass())) {
      throw UNWRAP_ERROR;
    }

    return iface.cast(this);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public boolean isWrapperFor(Class iface) throws SQLException {
    return iface.isAssignableFrom(getClass());
  }

  /**
   * {@inheritDoc}
   */
  protected Reference createReference() {
    return new Reference(getClass().getName(),
                         PGDataSourceObjectFactory.class.getName(),
                         null);
  }
}