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Politeknik Telkom Sistem Tersebar

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memandang suatu lokasi di dalam layanan lokasi

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Layanan Direktori

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Politeknik Telkom Sistem Tersebar 163 PAGE 10 1 import java.math.BigInteger; 2 import java.rmi.*; 3

4 public interface PowerService extends

java.rmi.Remote {

5 public BigInteger square(int num) throws

RemoteException;

6 public BigInteger power(int num1, int num2) throws RemoteException;

7 }

1 public class PowerServiceImpl extends UnicastRemoteObject implements PowerService{

2 public PowerServiceImpl() throws RemoteException { 3 super();

4 }

5 public BigInteger square(int num) { 6 String numrep = String.valueOf(num); 7 BigInteger bi = new BigInteger(numrep); 8 bi.multiply(bi);

9 return bi; 10 }

11 public BigInteger power(int num1, int num2) { 12 String numrep = String.valueOf(num1);

13 BigInteger bi = new BigInteger(numrep); 14 bi.pow(num2);

15 return bi; 16 }

17 public static void main(String args[]){ 18 try {

19 if (System.getSecurityManager() == null) { 20 System.setSecurityManager ( new

RMISecurityManager() ); 21 }

22 PowerServiceImpl impl = new PowerServiceImpl(); 23 Naming.bind("PowerService", impl);

24 System.out.println("Service bound..."); 25 } catch (Exception e) {

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Politeknik Telkom Sistem Tersebar 164 26 e.printStackTrace(); 27 } 28 } 29 } 1 import java.rmi.*; 2 import java.rmi.Naming; 3 import java.io.*; 4

5 public class PowerServiceClient {

6 public static void main(String args[]) {

7 try {

8 if (System.getSecurityManager() == null) {

9 System.setSecurityManager(new RMISecurityManager());

10 }

11 PowerService service = (PowerService) Naming.lookup 12 ("rmi://" + args[0] + "/PowerService");

13 System.out.println("Square 1323242= "+service.square(1323242); 14 } catch (Exception e) { 15 e.printStackTrace(); 16 } 17 } 18 }

jeab20@kawung-2:~/rmi$ java *.java

jeab20@kawung-2:~/rmi$ rmic PowerServiceImpl

jeab20@kawung-2:~/rmi$

cat

java.policy

grant

{

permission

java.Security.AllPermission;

permission

java.net.SocketPermssion

"*","accept,connect,resolve";

};

jeab20@kawung-2:~/rmi$

rmiregistry

&

[1] 30866

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jeab20@kawung-2:~/rmi$

java

-Djava.Security.policy=java.policy

PowerServiceImpl

Service bound...

jeab20@kawung-2:~/rmi$

java

-Djava.Security.policy=java.policy

PowerServiceClient 152.118.25.3

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