ALI Scripting - Performance Issues

Question

We are using ALI scripting to raise events so that other portlets in the page can listen to the events and also passing some data to other portlets using "PTPortlet.setSessionPref" scripting API. In my local testing, the scripting is taking just 0.3 seconds, however when we deployed this code to common portal which has few other portlets, the scripting is taking 5 seconds. Does any one know if there are any known best practices around ALI scripting to avoid performance issues especially to transfer events between portlets?
Thanks
Sampath

Answer 1

Hi, I would like to provide additional information on the performance issue we are facing with ALI scripting. In the code highlighted below, we are using “setSessionPref” methods to set values in session variables using ALI scripting APIs and raising events for IPC.
var prefName = 'selectionString';
var prefValue = xmlFile;
var gpConfigValue = "<%=gpPromptsConfigID%>";
PTPortlet.setSessionPref(prefName,prefValue);
PTPortlet.setSessionPref('gpFormObj',frmObj.name);
PTPortlet.setSessionPref('gpPromptsConfigID', gpConfigValue);
myportlet$$PORTLET_ID$$.raiseEvent('onSelectionSubmitFormObj',false);
myportlet$$PORTLET_ID$$.raiseEvent('onSelectionSubmit', false);
This code does not take lot of time(less than a second) to execute in my local machine however, it takes lof of time (around 5 seconds) in integrated development environment.
After lot of debugging, I observed that if I change “PTPortalContext.GET_SESSION_PREFS_URL” to point to http://localhost:7001 instead of integrated development environemnt, the processing time is considerably reduced. This code below is inserted automatically by ALUI in every portal page. Does any one know the signficance of the below code automaitcally inserted by ALUI and how it can impact IPC.
// Define PTPortalContext for CSAPI
PTPortalContext = new Object();
PTPortalContext.GET_SESSION_PREFS_URL = 'http://dcdev.pg.com/portal/server.pt?space=SessionPrefs&control=SessionPrefs&action=getprefs';
PTPortalContext.SET_SESSION_PREFS_URL = 'http://dcdev.pg.com/portal/server.pt?space=SessionPrefs&control=SessionPrefs&action=setprefs';
Thanks
Sampath