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
resourceFolder = getParameter( request, PARAM_RESOURCE_FOLDER );
		
		
		if ( resourceFolder == null || resourceFolder.trim( ).length( ) <= 0 )
			resourceFolder = birtResourceFolder;
		return resourceFolder;
	}
	/**
	 * Push User-defined application context object into engine context map.
	 * 
	 * @param map
	 * @param request
	 * @return
	 */
	public static Map pushAppContext( Map map, HttpServletRequest request )
	{
		if ( map == null )
			map = new HashMap( );
		
		String appContextKey = (String) request
				.getAttribute( ATTR_APPCONTEXT_KEY );
		
		if ( appContextKey != null )
			map.put( appContextKey, request
					.getAttribute( ATTR_APPCONTEXT_VALUE ) );
		return map;
	}
	/**
	 * Returns the encoding for export data.
	 *