Bug 165188 logging per report
Setting up a dedicated (birt) report server, which serves all our web apps, leads to a logging desaster. Birtegine logs all messages to one file. There's no info which rptdesign caused the logmessage or who (e.g. user) caused the logmessage. Retrieving who/which rpt caused some logmessage is not possible! There are two possible solutions: (a) prefixing each logmessage with a userdefineable message (task.setLogprefix("myprefix")) (b) set an outputstream for each task (task.setLoggingOutputStream(outputstream)) to split the huge logfile to many small pieces.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/ReportEngine.java
public IReportRunnable openReportDesign( String name,
			InputStream designStream, Map options ) throws EngineException
	{
		logger
				.log(
						Level.FINE,
						"ReportEngine.openReportDesign: name={0}, designStream={1}, options={3} ",
						new Object[]{name, designStream, options} );
		return helper.openReportDesign( name, designStream, options );
	}
	
	public IReportDocument openReportDocument( String fileName, IResourceLocator locator ) throws EngineException
	{
		logger.log( Level.FINE,
				"ReportEngine.openReportDocument: file={0}, locator={1} ", 
				new Object[]{fileName, locator}  );
		return openReportDocument( fileName, fileName, locator );
	}
	public IReportDocument openReportDocument( String systemId,
			String fileName, IResourceLocator locator ) throws EngineException
	{
		logger.log( Level.FINE,
				"ReportEngine.openReportDocument: systemId={0}, file={1}, locator={2} ", 
				new Object[]{systemId, fileName, locator}  );
		return helper.openReportDocument( systemId, fileName, locator );
	}
	public IReportDocument openReportDocument( String systemId,
			String fileName, Map options ) throws EngineException
	{