Bug 168304 Context root issue when set to other BIRT Web Project.[0603]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/taglib/ReportTag.java
* @return
	 */
	protected IViewerReportService getReportService( )
	{
		return BirtReportServiceFactory.getReportService( );
	}
	/**
	 * If a report file name is a relative path, it is relative to document
	 * folder. So if a report file path is relative path, it's absolute path is
	 * synthesized by appending file path to the document folder path.
	 * 
	 * @param file
	 * @return
	 */
	protected String createAbsolutePath( String filePath )
	{
		if ( filePath != null && filePath.trim( ).length( ) > 0
				&& ParameterAccessor.isRelativePath( filePath ) )
		{
			return ParameterAccessor.documentFolder + File.separator + filePath;
		}
		return filePath;
	}
	/**
	 * Returns report design handle
	 * 
	 * @return IViewerReportDesignHandle
	 * @throws Exception
	 */
	protected IViewerReportDesignHandle getDesignHandle( ) throws Exception