Basic HTML version of Foils prepared July 5 98

Foil 46 Binding to the sessionScheduler (CORBA) Vs (RMI)

From FMS: Forces Modeling and Simulation Handout JSU HPC Summer Institute for Undergraduates, Jackson MS -- June 15 1998. by Wojtek Furmanski, Subhash Nair, Tom Pulikal


CORBA Binding Process.
private void getSessionSchedulerHandle() {
try {
// Initialize the ORB.
org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(this, null);
// Calculate Start time
long startTime = System.currentTimeMillis();
// Bind to the Scheduler Object
/* Get a reference to the Naming Service */
org.omg.CORBA.Object nameServiceObj =
orb.resolve_initial_references("NameService");
if (nameServiceObj == null) {
System.out.println("Name Service Object = null");
return;
}
org.omg.CosNaming.NamingContext nameService =
org.omg.CosNaming.NamingContextHelper.narrow(nameServiceObj);
if (nameService == null) {
System.out.println("nameService = null");
return;
}
NameComponent[] collabName =
{ new NameComponent("Collaboration", "Scheduler")};
_chatSession=
jdce.scheduler.sessionSchedulerHelper.narrow(nameService.resolve(collabName));
} catch(Exception e) {
System.out.println("Exception: " + e);
}
}
RMI Binding Process
private void getSessionSchedulerHandle() {
try {
remoteObject =
Naming.lookup("rmi://jojo.npac.syr.edu:7000/Scheduler");
} catch (java.lang.Exception exec) {
System.out.println("Unable to lookup created Scheduler");
}
_chatSession = (jdce.scheduler.RMISessionScheduler) remoteObject;
}



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