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/EngineTask.java
executionContext );
		}
	}
	protected void prepareDesign( )
	{
		ReportDesignHandle reportDesign = executionContext.getDesign( );
		ScriptedDesignVisitor visitor = new ScriptedDesignVisitor(
				reportDesign, executionContext );
		visitor.apply( reportDesign.getRoot( ) );
		runnable.setDesignHandle( reportDesign );
	}
	protected void startFactory( )
	{
		ReportDesignHandle reportDesign = executionContext.getDesign( );
		ReportScriptExecutor.handleBeforeFactory( reportDesign,
				executionContext );
	}
	protected void closeFactory( )
	{
		ReportDesignHandle reportDesign = executionContext.getDesign( );
		ReportScriptExecutor
				.handleAfterFactory( reportDesign, executionContext );
	}
	protected void startRender( )
	{
		ReportDesignHandle reportDesign = executionContext.getDesign( );
		ReportScriptExecutor
				.handleBeforeRender( reportDesign, executionContext );
	}
	protected void closeRender( )