Bug 214204 Only document content in document folder should be removed.[0601]
Description: Only document related content in document folder should be removed. Build number:2.3.0.v20080103 Steps to reproduce: 1. Deploy BIRT. 2. Edit web.xml to set BIRT_VIEWER_DOCUMENT_FOLDER to your local path and there are content inside the path. 3. Start server and click View Example to preview sample report. Expected result: Only content created by viewer should be removed in specified document folder. Actual result: All contents are deleted despite whether they are related with BIRT. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
{
		boolean isRtl = false;
		if ( "true".equalsIgnoreCase( getParameter( request, PARAM_RTL ) ) ) 
		{
			isRtl = true;
		}
		return isRtl;
	}
	/**
	 * Get report locale from a given string.
	 * 
	 * @param locale
	 *            locale string
	 * @return report locale
	 */
	public static Locale getLocaleFromString( String locale )
	{
		if ( locale == null || locale.length( ) <= 0 )
		{
			return null;
		}
		String[] sp = locale.split( "_" ); 
		if ( sp.length == 1 )
		{
			
			return new Locale( locale );
		}
		else if ( sp.length == 2 )
		{