Bug 136820 viewer supports render report in pdf format
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/BaseAttributeBean.java
InputOptions options = new InputOptions( );
		options.setOption( InputOptions.OPT_REQUEST, request );
		options.setOption( InputOptions.OPT_LOCALE, locale );
		Collection parameterList = this.getReportService( )
				.getParameterDefinitions( design, options );
		
		this.parameters = (HashMap) getParsedParameters( design, parameterList,
				request, options );
		this.missingParameter = validateParameters( parameterList,
				this.parameters );
	}
	protected IViewerReportDesignHandle getDesignHandle(
			HttpServletRequest request )
	{
		return new BirtViewerReportDesignHandle( null, reportDesignName );
	}
	/**
	 * @return Returns the parameterBean.
	 */
	public ParameterAttributeBean getParameterBean( )
	{
		return parameterBean;
	}
	/**
	 * @param parameterBean
	 *            The parameterBean to set.
	 */
	public void setParameterBean( ParameterAttributeBean parameterBean )
	{