I am trying integrate a Struts Portlet using Struts Bridge and an
InterPortlet Communication library,
http://www.doc.ic.ac.uk/~mo197/portlets/portlet_messaging/crosscontext.php ,
which works well with ordinary portlets.
The library requires that I retrieve the PortletRequest / ActionRequest /
RenderRequest. However within my Struts Portlet I only action and form
classes and with execute I only have httpServletRequest available. Given
that my action classes are running within s struts portlet how can I
retrieve the PortletRequest that I need.
The following code shows a simple portlet that works fine.
public class Portlet1 extends GenericPortlet{
protected void doEdit(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
String id = this.getInstanceID(request);
String msg_session_id = MessageHelper.getSessionID(request);
MessageHelper.loadPrefs(request, id, msg_session_id);
MessageUtils.prepareMappingForm(request, id, msg_session_id);
getPortletContext().getRequestDispatcher("/WEB-INF/pages/edit_mappings.jsp").include(request,response);
}
protected void doView(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
String id = this.getInstanceID(request);
String msg_session_id = MessageHelper.getSessionID(request);
MessageHelper.loadPrefs(request, id, msg_session_id);
response.setContentType("text/html");
PrintWriter out = response.getWriter();
PortletURL aURL = response.createActionURL();
aURL.setParameter("ACTION", "sendmsg");
out.println("<b>Message Session ID:</b>
"+msg_session_id+"<br/>");
out.println("<b>Portlet App:</b>
"+request.getContextPath()+"<br/>");
out.println("<b>Portlet1</b>:<br/>");
out.println("<a href=\""+aURL+"\">send message</a><br/><br/>");
MessageHelper msgh = new
MessageHelper(request.getPortletSession(true),
id, msg_session_id);
String msg = (String)msgh.get("a_val");
out.println("my a_val msg: "+msg);
}
public void processAction(ActionRequest request, ActionResponse
response)
throws PortletException, IOException {
String id = this.getInstanceID(request);
String msg_session_id = MessageHelper.getSessionID(request);
MessageHelper.loadPrefs(request, id, msg_session_id);
if (request.getPortletMode().equals(PortletMode.EDIT)) {
MessageUtils.processMappingForm(request,
response, id, msg_session_id);
}
if ("sendmsg".equals(request.getParameter("ACTION"))){
System.out.println("try sending message from Portlet 1
in webapp
"+request.getContextPath());
MessageHelper msgh = new
MessageHelper(request.getPortletSession(true),
id, msg_session_id);
msgh.send("a_val", "this is a message from Portlet1 in
portlet webapp
"+request.getContextPath());
}
}
public String getInstanceID(PortletRequest request){
return "Portlet1."+MessageHelper.getPortletID(request);
}
}
Hopefully from that you can see what I am trying to retrieve from within my
action class. The following is my current execute method
logger = Logger.getLogger("Cedar-Portlets");
logger.debug("SetURLAction::execute - starting");
try {
ActionRequest actionRequest = (ActionRequest) request
.getAttribute(ContainerConstants.PORTLET_REQUEST);
String id = this.getInstanceID(actionRequest);
String msg_session_id =
MessageHelper.getSessionID(actionRequest);
MessageHelper.loadPrefs(actionRequest, id,
msg_session_id);
MessageHelper msgh = new MessageHelper(actionRequest
.getPortletSession(true), id,
msg_session_id);
msgh.send("a_val",
"this is a message from SetURLAction in
portlet webapp "
+
actionRequest.getContextPath());
} catch (RuntimeException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return mapping.findForward("failure");
}
return mapping.findForward("success");
Which doesn't work, any ideas would be greatly appreciated.
Jon Hawkins
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