Hi Apurva,
This can be achived by means of, a hidden iView with JavaScript to read the session attributes and portal eventing.
Steps:
1. Create a DC of type Portal Application Standalone and add a JSP page to it. If you already have a DC of this type you can use it to create the JSP.
2. In the JSP page, subscribe an event by using EPCM object i.e. EPCM.subscribeEvent( <nameSpace>, <eventName>, <eventHandler>); where the eventHandler will be a javascript method.
3. In the javascript method, read the session attribute (using scriptlets) and fire an event again by using EPCM object i.e. EPCM.raiseEvent( <nameSpace>, <eventName>, dataObject), where dataObject will be a javascript variable holding the session attribute's value to be passed to WDJ app.
i.e. write the below lines of code in the JSP page,
<html>
<head
<%String sessionVal = session.getAttribute(<attrName>);%>
<script>
function getSessionValue(){
var dataObject = "<%= sessionVal%>";
EPCM.raiseEvent("urn:com.test", "JSPEvent", dataObject);
}
</script>
</head>
<body>
<script>
EPCM.subscribeEvent("urn:com.test1","WDJEvent", getSessionValue);
</script>
</body>
</html>
4. Deploy this DC and create an IView out of this portal component.
5. In the wdinit() method, of the default view of your WDJ app, fire an event (which will be subscribed by the above JSP) and subscribe the event raised by the above JSP. i.e. write the below line of code in init method
WDPortalEventing.subscribe("urn:com.test", "JSPEvent", wdThis.wdGetReactPortalEventingAction());
WDPortalEventing.fire("urn:com.test1", "WDJEvent", " ");
Different namespace and event name should be used for fire and subscribe. The event fired in WDJ should be subscribed in JSP and the event raised in JSP will be subscribed in WDJ.
6. Create an eventHandler named onActionReactPortalEventing() with an input argument of type String, in the WDJ app's default view. This input arg holds the dataObject passed by the javascript EPCM.fire() method.
7.Create a Portal Page and add the IViews of both JSP page and WDJ application to this page and use this page in place of the WDJ app IView. Also uncheck the Visible checkbox of the JSP Iview added in the Portal Page, to make it invisible.
Regards,
Vishweshwara P.K.M.
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