Bug 200812 Issue when remove one separator setting in viewer.property[0002]
Description: Issue when remove one separator setting in viewer.property Build number:2.2.1.v200708220927 Steps to reproduce: 1. Deploy birt. 2. Open viewer.properties under WEB-INF folder. 3. Delete "viewer.sep.0=," line 4. Start server. 5. Preview report. 6. Export Data, select columns and select "Comma(,)", click OK. Expected result: Comma(,) isn't in the separator list. Actual result: Nothing happened after step6 and no error logs. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
*/
	public static void setClean( HttpServletRequest request )
	{
		String isClean = getParameter( request, PARAM_CLEAN_SESSION );
		if ( "false".equalsIgnoreCase( isClean ) ) 
			isCleanSessionFiles = false;
		else if ( "true".equalsIgnoreCase( isClean ) ) 
			isCleanSessionFiles = true;
	}
	/**
	 * Check If force optimized HTML output.
	 * 
	 * @param request
	 * @return
	 */
	public static boolean isAgentStyle( HttpServletRequest request )
	{
		boolean flag = isAgentStyle;
		String urlParam = getParameter( request, PARAM_AGENTSTYLE_ENGINE );
		if ( "true".equalsIgnoreCase( urlParam ) ) 
		{
			flag = true;
		}
		else if ( "false".equalsIgnoreCase( urlParam ) ) 
		{
			flag = false;
		}
		return flag;
	}
}