Bug 180118 Enhance to print out source stack trace in preview mode.[0002]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/BirtUtility.java
*/
	public static Map getDisplayTexts( Map displayTexts,
			HttpServletRequest request )
	{
		if ( displayTexts == null )
			displayTexts = new HashMap( );
		Enumeration params = request.getParameterNames( );
		while ( params != null && params.hasMoreElements( ) )
		{
			String param = DataUtil.getString( params.nextElement( ) );
			String paramName = ParameterAccessor.isDisplayText( param );
			if ( paramName != null )
			{
				displayTexts.put( paramName, ParameterAccessor.getParameter(
						request, param ) );
			}
		}
		return displayTexts;
	}
	/**
	 * Get locale parameter list
	 * 
	 * @param locParams
	 * @param request
	 * @return List
	 */
	public static List getLocParams( List locParams, HttpServletRequest request )
	{
		if ( locParams == null )
			locParams = new ArrayList( );