Bug 162281 Better parsing of BIRT_VIEWER_LOG_LEVEL parameter
java.util.logging.Level supplies a parse(String) method which parses log levels. Using this method is superior to the parsing used in ReportEngineServlet for the following reasons: - the level "ALL" is not recognized - one gets a proper exception if the level ins not recognized - a lot less code. I'll attach a patch for this.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
engine = factory.createReportEngine( config );
			contextPath = request.getContextPath( );
		}
	}
	/**
	 * Open report design.
	 * 
	 * @param report
	 * @param options
	 *            the config options in the report design
	 * @return the report runnable
	 * @throws EngineException
	 */
	public IReportRunnable openReportDesign( String report, Map options )
			throws EngineException
	{
		File file = new File( report );
		if ( !file.exists( ) )
		{
			throw new EngineException(
					MessageConstants.DESIGN_FILE_NOT_FOUND_EXCEPTION, report );
		}
		try
		{
			InputStream in = new FileInputStream( file );
			String systemId = report;
			try
			{
				systemId = file.toURL( ).toString( );
			}