Inter portlet communication: 3 portlets, not refreshing the last portlet

[Ranen Das, geändert vor 10 Jahren.]

Hello Guys,

Problem Description:- Portlet 1 : it has got dropdown list--> select an option-->click submit-->Portlet 2 displays data in a chart(=this is first IPC)-->click a part of the chart in Portlet 2---> it should display another chart in a portlet(which is Portlet 3) below Portlet 2 -->this is the second place of IPC-->codes get executed properly, executed jsp code also, but the portlet 3 does not get the data in a chart,but if I refresh whole page, I can see the Portlet 3 with the desired data in a chart.

Now the question here is why the portlet 2-- to portlet 3 communication time, the page did not get refresh. If the page gets refresh then I would see my output, so issue is not refreshing the page, during portlet 1 to portket 2 communication - page gets automatically refreshed.

here is code snippet:-

Portlet 1:-

portlet.xml:-

<portlet>
        <portlet-name>ChartHandler</portlet-name>
        <display-name>ChartHandler</display-name>
        <portlet-class>DSChartController1</portlet-class>       
        <supports>
            <mime-type>text/html</mime-type>
            <portlet-mode>view</portlet-mode>
        </supports>
        <portlet-info>
            <title>ChartHandler</title>
        </portlet-info>        
        <supported-publishing-event>        	
        	<qname xmlns:x="http://liferay.com/events">x:chart.data</qname>
        </supported-publishing-event>
    </portlet>
    	
 	<portlet>
        <portlet-name>DisplayHandler</portlet-name>
        <display-name>DisplayHandler</display-name>
        <portlet-class>
           DSChartDisplayController2
        </portlet-class>       
        <supports>
            <mime-type>text/html</mime-type>
            <portlet-mode>view</portlet-mode>
        </supports>
        <portlet-info>
            <title>DisplayHandler</title>
        </portlet-info>
        <supported-processing-event>
         	<qname xmlns:x="http://liferay.com/events">x:chart.data</qname>   	
        </supported-processing-event>      
        <supported-publishing-event>
         	<qname xmlns:x="http://liferay.com/events">x:tradeOrigin.data</qname>   	
        </supported-publishing-event>  
    </portlet>
    
    <portlet>
        <portlet-name>PieDrillDown</portlet-name>
        <display-name>PieDrillDown</display-name>
        <portlet-class>
           DSPieChartDrillDownController
        </portlet-class>       
        <supports>
            <mime-type>text/html</mime-type>
            <portlet-mode>view</portlet-mode>
        </supports>
        <portlet-info>
            <title>PieDrillDown</title>
        </portlet-info>
        <supported-processing-event>
         	<qname xmlns:x="http://liferay.com/events">x:tradeOrigin.data</qname>   	
        </supported-processing-event>       
    </portlet>
    
    <event-definition>
    	<qname xmlns:x="http://liferay.com/events">x:chart.data</qname>
    	<value-type>java.lang.String</value-type>
    </event-definition>
    
    <event-definition>
    	<qname xmlns:x="http://liferay.com/events">x:tradeOrigin.data</qname>
    	<value-type>java.lang.String</value-type>
    </event-definition>

Portlet 1 Controller:-

public void processAction(ActionRequest request, ActionResponse response) throws PortletException, IOException {
    	String chartName= (String) request.getParameter("chartName");
    	request.setAttribute("chartName", chartName);    	
    	QName qname = new QName("http://liferay.com/events","chart.data");
    	response.setEvent(qname, chartName); 
	}

Portlet 2 Controller:-

@ProcessEvent(qname = "{http://liferay.com/events}chart.data")
	public void receiveEvent(EventRequest request, EventResponse response) 
	{		
		Event event = request.getEvent();
		String chartName = (String)event.getValue();
		response.setRenderParameter("chartName", chartName);
	}

public void processAction(ActionRequest request, ActionResponse response) throws PortletException, IOException {
    	String tradeOrigin = request.getParameter("tradeOrigin");
    	request.setAttribute("tradeOrigin", tradeOrigin);    	
    	QName qname = new QName("http://liferay.com/events","tradeOrigin.data"); 
    	response.setEvent(qname, tradeOrigin);
	}

Portlet 3 controller:-

@ProcessEvent(qname = "{http://liferay.com/events}tradeOrigin.data")
	public void receiveEvent(EventRequest request, EventResponse response) 
	{		
		Event event1 = request.getEvent();
		String tradeOrigin = (String)event1.getValue();
		response.setRenderParameter("tradeOrigin", tradeOrigin);
	}

public void doView(RenderRequest renderRequest, RenderResponse renderResponse) throws PortletException, IOException{
		String tradeOrigin = renderRequest.getParameter("tradeOrigin");
		if(tradeOrigin!=null &amp;&amp; tradeOrigin.length() &gt;0){
			PieDetailBean pieDetailBean = new PieDetailBean(tradeOrigin);
			renderRequest.setAttribute("pieDetailBean", pieDetailBean);
			viewJSP = "/JSP/pieDetail.jsp";
		}
		include(viewJSP, renderRequest, renderResponse);
	}
	
	protected void include(String path, RenderRequest renderRequest, RenderResponse renderResponse) throws IOException, PortletException {
		PortletRequestDispatcher portletRequestDispatcher = getPortletContext().getRequestDispatcher(path);
		if (portletRequestDispatcher == null) {
			System.out.println(path + " is not a valid include");
		} else {
			portletRequestDispatcher.include(renderRequest, renderResponse);
		}
	}


And portlet 3 view jsp:-

&lt;%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %&gt;
&lt;%@ taglib uri="http://www.fusioncharts.com/jsp/core" prefix="fc" %&gt; 
&lt;%@ taglib prefix="tags" tagdir="/WEB-INF/tags" %&gt;
&lt;%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %&gt;
<portlet:defineobjects />
<c:set var="folderPath" value="/ChartHandler-portlet/FusionCharts/" />
<c:set var="title" value="FusionCharts - Array Example using Single Series Column 3D Chart" scope="request" />
<c:set var="header1" value="FusionCharts - Examples" scope="request" />
<c:set var="header2" value=" " scope="request" />
<c:set var="jsPath" value="${folderPath}" scope="request" />

&lt;%@page import="com.bfds.web.bean.PieDetailBean"%&gt;
&lt;%
	PieDetailBean pieDetailBean = (PieDetailBean)renderRequest.getAttribute("pieDetailBean");	
%&gt;

<tags:template2>
	<table>
		<tbody><tr>
			<td>
				<fc:render chartId="${pieDetailBean.chartIdPieDetail}" swfFilename="/ChartHandler-portlet/FusionCharts/Column2D.swf" width="450" height="300" debugMode="false" registerWithJS="false" xmlData="${pieDetailBean.pieDetailXml}" />
			 </td>
		</tr>
	</tbody></table>		
</tags:template2>