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
String sessionId = request.getSession( ).getId( );
		if ( sessionId != null )
			tempFolder = tempFolder + File.separator + sessionId;
		return tempFolder;
	}
	/**
	 * Clear the temp files when session is expired
	 * 
	 * @param sessionId
	 */
	public static void clearSessionFiles( String sessionId )
	{
		if ( sessionId == null )
			return;
		
		String tempFolder = documentFolder + File.separator + sessionId;
		File file = new File( tempFolder );
		deleteDir( file );
		
		tempFolder = imageFolder + File.separator + sessionId;
		file = new File( tempFolder );
		deleteDir( file );
	}
	/**
	 * Returns if fit to page
	 * 
	 * @param request
	 * @return
	 */