[CT414]: Add RMI sample code

year4/semester2/CT414/materials/code/01-rmisample/CityServerImpl.java

@@ -0,0 +1,54 @@
+import java.rmi.*;
+import java.rmi.server.*;
+import java.rmi.registry.*;
+
+public class CityServerImpl implements CityServer
+{
+  // constructor is required in RMI
+  CityServerImpl() throws RemoteException
+  {
+    super(); 	// call the parent constructor
+  }
+
+  // Remote method we are implementing!
+  public String getCapital(String country) throws RemoteException
+  {
+    System.out.println("Sending return string now - country requested: " + country);
+    if (country.toLowerCase().compareTo("usa") == 0)
+    return "Washington";
+    else if (country.toLowerCase().compareTo("ireland") == 0)
+    return "Dublin";
+    else if (country.toLowerCase().compareTo("france") == 0)
+    return "Paris";
+    return "Don't know that one!";
+  }
+
+  // main is required because the server is standalone
+  public static void main(String args[])
+  {
+    try
+    {
+      // First reset our Security manager - deprecated so no longer used
+      //if (System.getSecurityManager() == null) {
+      //      System.setSecurityManager(new SecurityManager());
+      //      System.out.println("Security manager set");
+      //  }
+
+      // Create an instance of the local object
+      CityServer cityServer = new CityServerImpl();
+      System.out.println("Instance of City Server created");
+      CityServer stub = (CityServer) UnicastRemoteObject.exportObject(cityServer, 0);
+
+      // Put the server object into the Registry
+      // Naming.rebind("Capitals", stub);
+      Registry registry = LocateRegistry.getRegistry();
+      registry.rebind("Capitals", stub);
+      System.out.println("Name rebind completed");
+      System.out.println("Server ready for requests!");
+    }
+    catch(Exception exc)
+    {
+      System.out.println("Error in main - " + exc.toString());
+    }
+  }
+}