Bug 137176 It takes unacceptable long time to render a report
Description: Get the attached report design, preview in report designer. It takes unacceptable long time to render a report, and users could not get the output finally. Even during the rending, the computer could not do anything else.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
e.printStackTrace( );
			}
		}
		if ( reportRunnable != null )
		{
			design = new BirtViewerReportDesignHandle(
					IViewerReportDesignHandle.RPT_RUNNABLE_OBJECT,
					reportRunnable );
		}
		else
		{
			design = new BirtViewerReportDesignHandle( null, reportDesignName );
		}
		return design;
	}
	/**
	 * Determine the report design and doc 's timestamp
	 * 
	 * @param request
	 * @throws Exception
	 */
	protected void processReport( HttpServletRequest request ) throws Exception
	{
		File reportDocFile = new File( this.reportDocumentName );
		
		File reportDesignDocFile = new File( reportDesignName );
		if ( reportDesignDocFile != null && reportDesignDocFile.exists( )
				&& reportDesignDocFile.isFile( ) && reportDocFile != null
				&& reportDocFile.exists( ) && reportDocFile.isFile( )
				&& "get".equalsIgnoreCase( request.getMethod( ) ) )