/**
   * @param arg0
   * @roseuid 3F4E5F40012D
   */
  public void connectionErrorOccurred(ConnectionEvent event) {
    logger.debug("Connection Error " + event.getSQLException().getMessage());

    synchronized (connectionPool) {
      if (connectionPool.size() <= connectionPoolSize) {
        connectionPool.remove(event.getSource());
        if (!SHUTTING_DOWN) {
          try {
            installConnection();
          } catch (EmanagerDatabaseException e) {
            // noop.  can't throw an exception here, so we'll ignore.
            // It will surface later.
          }
        }
      }
    }
  }
  /**
   * @return Connection
   * @roseuid 3F3A5FFD0338
   */
  public Connection getConnection() throws EmanagerDatabaseException {
    long connectionId;
    Connection connection;
    PooledConnection pooledConnection;

    connection = null;
    pooledConnection = null;
    connectionId = InvalidConnectionId;

    try {
      synchronized (connectionPool) {
        if (!connectionPool.isEmpty()) {
          try {
            boolean connectionClosed;

            connectionClosed = false;

            pooledConnection = (PooledConnection) connectionPool.remove(0);
            connection = pooledConnection.getConnection();
            connection.clearWarnings();
            connectionId = getConnectionID(connection);
            connectionClosed = connection.isClosed();
            if (connectionId == InvalidConnectionId || connectionClosed == true) {
              logger.debug("Pooled connection closed.");
              connection = null;
            }
          } catch (SQLException sqe) {
            logger.debug("Pooled connection closed.");
            connection = null;
          }
        }
      }

      if (connection == null) {
        logger.debug("Getting a new connection.");
        pooledConnection = poolDataSource.getPooledConnection();
        pooledConnection.addConnectionEventListener(this);
        connection = pooledConnection.getConnection();
        connection.clearWarnings();
        connectionId = getConnectionID(connection);
      }
    } catch (SQLException sqe) {
      String logString;
      EmanagerDatabaseException ede;

      logString =
          EmanagerDatabaseStatusCode.UnableToGetPooledConnection.getStatusCodeDescription()
              + sqe.getMessage();

      logger.error(logString);
      ede =
          new EmanagerDatabaseException(
              EmanagerDatabaseStatusCode.UnableToGetPooledConnection, logString);
      throw ede;
    }

    if (connectionId == InvalidConnectionId) {
      EmanagerDatabaseException ede;
      ede =
          new EmanagerDatabaseException(
              EmanagerDatabaseStatusCode.UnableToGetPooledConnection,
              EmanagerDatabaseStatusCode.UnableToGetPooledConnection.getStatusCodeDescription());
      throw ede;
    }

    logger.debug(
        "\n*****************************"
            + "\nPooled Connection Init"
            + "\nCon ID:"
            + connectionId
            + "\nCon Object:"
            + pooledConnection
            + "\nPool Object:"
            + connection
            + "\n*****************************");

    return connection;
  }