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Transkripsi

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6 o o o o o o 4

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16 Informasi terpusat pada jaringan komputer dapat dilihat di gambar berikut 2: 14

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38 c. kecil dari TCP. 36

39 2. versus PAGE 10

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63 memandang suatu lokasi di dalam layanan lokasi secara hirarkis 61 PAGE 10

64 rafik penamaan yang umum dengan satu root node 62

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99 a. konsistensi berpusat pada data (Data-Centric Concistency Models) b. konsistensi berpusat pada client 97 PAGE 10

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101 . 99 PAGE 10

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139 Layanan Direktori 137 PAGE 10

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165 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) { 163 PAGE 10

166 e.printstacktrace(); } } } 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 = "+service.square( ); 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$ [1] rmiregistry &

167 java Djava.Security.policy=java.policy PowerServiceImpl Service bound... - jeab20@kawung-2:~/rmi$ java Djava.Security.policy=java.policy PowerServiceClient PAGE 10

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