Bug 176786 Issue when use ${env.working.folder} as context path.[0601]
Description: Issue when use ${env.working.folder} as context path Build number:2.2.0.v20070308 Steps to reproduce: 1. Add environment variable as below: env.working.folder(D:\temp\working_folder) env.document.folder (D:\temp\document_folder) env.image.folder(D:\temp\image_folder) 2. Deploy WebViewerExample folder in Tomcat5.5.7 2. Set context parameter as attached with form like ${env.working.folder}. 3. Start Server Expected result: Content inside WebViewerExample folder is untouched. Actual result: After server is started, refresh and check the WebViewerExample folder. Only webcontent and WEB-INF folders are left, other folders and two sample reports disappear. Error log:N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
if ( appContextKey != null )
			map.put( appContextKey, request
					.getAttribute( ATTR_APPCONTEXT_VALUE ) );
		return map;
	}
	/**
	 * Returns the encoding for export data.
	 * 
	 * @param request
	 * @return
	 */
	public static String getExportEncoding( HttpServletRequest request )
	{
		String encoding = getParameter( request, PARAM_EXPORT_ENCODING );
		
		if ( encoding == null )
			encoding = UTF_8_ENCODE;
		return encoding;
	}
	/**
	 * Check whether show the report title.
	 * 
	 * @param request
	 * @return
	 */
	public static boolean isShowTitle( HttpServletRequest request )
	{
		boolean isTitle = true;
		if ( "false".equalsIgnoreCase( getParameter( request, PARAM_SHOW_TITLE ) ) )