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
}
	/**
	 * Check whether the request is to get reportlet.
	 * 
	 * @param request
	 *            http request
	 * @return is get reportlet or not
	 */
	public static boolean isGetReportlet( HttpServletRequest request )
	{
		return isBookmarkReportlet( request ) || isIidReportlet( request );
	}
	/**
	 * if the PARAM_ISREPORTLET is trure and the PARAM_BOOKMARK is not null,
	 * this method will return true. Otherwise, return false.
	 * 
	 * @param request
	 * @return true for render the reportlet based on bookmark, else, false.
	 */
	public static boolean isBookmarkReportlet( HttpServletRequest request )
	{
		if ( "true" 
		.equalsIgnoreCase( getParameter( request, PARAM_ISREPORTLET ) ) )
		{
			String bookmark = getParameter( request, PARAM_BOOKMARK );
			return bookmark != null && bookmark.length( ) > 0;
		}
		return false;
	}
	/**