Bug 154325 Use input absolute path as the parameter in error message
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
public static String getQueryParameterString( String paramName, String value )
	{
		StringBuffer b = new StringBuffer( );
		b.append( PARAMETER_SEPARATOR );
		b.append( paramName );
		b.append( EQUALS_OPERATOR );
		b.append( value );
		return b.toString( );
	}
	/**
	 * Get report format.
	 * 
	 * @param request
	 *            http request
	 * @return report format
	 */
	public static String getFormat( HttpServletRequest request )
	{
		String format = getParameter( request, PARAM_FORMAT );
		if ( format != null && format.length( ) > 0 )
		{
			if ( PARAM_FORMAT_HTM.equalsIgnoreCase( format ) )
				return PARAM_FORMAT_HTML;
			return format;
		}
		return PARAM_FORMAT_HTML; 
	}
	/**
	 * Get preview max rows.
	 *