ORB myORB = ORB.init(args, null);
try {
// The object name passed in on the command line
String name = args[0];
org.omg.CORBA.Object acctRef = null;
if (name.startsWith("corbaname") || name.startsWith("corbaloc") ||
name.startsWith("IOR")) {
System.out.println("Attempting to lookup " + args[0]);
acctRef = myORB.string_to_object(args[0]);
}
else {
System.out.println("Invalid object URL provided: " + args[0]);
System.exit(1);
}
// Make a dynamic call to the doThis method
if (acctRef != null) {
// We managed to get a reference to the named account, now check the
// requested transaction from the command-line
String action = args[1];
float amt = 0.0f;
if (action.equals("deposit")) {
amt = Float.parseFloat(args[2]);
}
System.out.println("Got account, performing transaction...");
try {
// Did user ask to do a deposit?
if (action.equals("deposit")) {
// The following DII code is equivalent to this:
// acct.deposit(amt);
// First build the argument list. In this case, there's a single
// float argument to the method.
NVList argList = myORB.create_list(1);
Any arg1 = myORB.create_any();
// Set the Any to hold a float value, and set the value to the
// amount to be deposited.
arg1.insert_float(amt);
NamedValue nvArg =
argList.add_value("amt", arg1, org.omg.CORBA.ARG_IN.value);
// Java IDL does not implement the get_default_context() operation
// on the ORB, so we just set the Context to null
Context ctx = null;
// Create the request to call the deposit() method, using the
// _create_request() method on the ORB
Request depositReq =
acctRef._create_request(ctx, "deposit", argList, null);
// Invoke the method...
depositReq.invoke();
System.out.println("Deposited " + amt + " to account.");
}
else {
// The following DII code is equivalent to this:
// acct.balance();
// No argument list is needed here, since the getBalance() method
// has no arguments. But we do need a result value to hold the
// returned balance
Any result = myORB.create_any();
// Set the any to hold a float value
result.insert_float(0.0f);
NamedValue resultVal =
myORB.create_named_value("result", result,
org.omg.CORBA.ARG_OUT.value);
// Java IDL does not implement the get_default_context() operation
// on the ORB, so we just set the Context to null
Context ctx = null;
// Create the request to call getBalance()
Request balanceReq =
acctRef._create_request(ctx, "getBalance", null, resultVal);
// Invoke the method...
balanceReq.invoke();
System.out.println("Current account balance: " +
result.extract_float());
}
}
catch (Exception e) {
System.out.println("Error occurred while performing transaction:");
e.printStackTrace();
}
}
else {
System.out.println("Null account returned.");
System.exit(1);
}
}
catch (Exception e) {
e.printStackTrace();
}
