Bug 130688 ULocal unsupported(Data)
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
* String -> Integer
	 * 		Integer.valueOf();
	 * @param source
	 * @return
	 * @throws BirtException
	 */
	public static Integer toInteger( Object source ) throws BirtException
	{
		if ( source == null )
			return null;
		
		if ( source instanceof Integer )
		{
			return (Integer) source;
		}
		else if ( source instanceof BigDecimal )
		{
			int intValue = ( (BigDecimal) source ).intValue( );
			return new Integer( intValue );
		}
		else if ( source instanceof Boolean )
		{
			if ( true == ( (Boolean) source ).booleanValue( ) )
				return new Integer( 1 );
			return new Integer( 0 );
		}
		else if ( source instanceof Date )
		{
			long longValue = ( (Date) source ).getTime( );
			return new Integer( (int) longValue );