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
catch ( MalformedURLException ue )
			{
				systemId = report;
			}
			return engine.openReportDesign( systemId, in, options );
		}
		catch ( FileNotFoundException ioe )
		{
			throw new EngineException(
					MessageConstants.DESIGN_FILE_NOT_FOUND_EXCEPTION, report );
		}
	}
	/**
	 * Open report design by using the input stream
	 * 
	 * @param systemId
	 *            the system Id of the report design
	 * @param reportStream -
	 *            the input stream
	 * @param options
	 *            the config options in the report design
	 * @return IReportRunnable
	 * @throws EngineException
	 */
	public IReportRunnable openReportDesign( String systemId,
			InputStream reportStream, Map options ) throws EngineException
	{
		return engine.openReportDesign( systemId, reportStream, options );
	}
	/**