// RMI.  Arrays are Serializable, and therefore passed by value in RMI.
// This sort() method only sorts the copy that is passed to it, and has
// no effect on the client's unsorted array.

import java.rmi.*;
import java.rmi.server.*;

interface RISort extends Remote {
  void sort( int[] array ) throws RemoteException;
}

public class RmiSortServer extends UnicastRemoteObject implements RISort {
  public RmiSortServer() throws RemoteException { }
  public void sort( int[] array ) {
    System.out.print( "RmiSortServer.sort() - " );
    for (int i=0; i < array.length; i++) System.out.print( array[i] + " " );
    System.out.println();
    for (int g = array.length/2; g > 0; g /= 2)
      for (int i = g; i < array.length; i++)
        for (int j = i-g; j >= 0; j -= g)
          if (array[j] > array[j+g]) {
            int temp = array[j];
            array[j] = array[j+g];
            array[j+g] = temp;
          }
  }
  public static void main( String[] args ) {
    try {
      Naming.rebind( "SortServer", new RmiSortServer() );
    } catch (java.net.MalformedURLException ex) { ex.printStackTrace();
    } catch (RemoteException ex)                { ex.printStackTrace(); }
    System.out.println( "SortServer bound in rmiregistry" );
} }



import java.rmi.*;

public class RmiSortClient {
  public static void main( String[] args ) {
    int[] array = new int[15];
    java.util.Random rn = new java.util.Random();

    for (int i=0; i < array.length; i++) array[i] = rn.nextInt(20) + 1;
    for (int i=0; i < array.length; i++) System.out.print( array[i] + " " );
    System.out.println();

    try {
      RISort sorter = (RISort) Naming.lookup( "SortServer" );
      sorter.sort( array );
    } catch (NotBoundException ex)              { ex.printStackTrace();
    } catch (java.net.MalformedURLException ex) { ex.printStackTrace();
    } catch (RemoteException ex)                { ex.printStackTrace(); }

    for (int i=0; i < array.length; i++) System.out.print( array[i] + " " );
    System.out.println();
} }

// D:\j2ee\demos> rmiregistry
//
// D:\j2ee\demos> javac RmiSortServer.java
// D:\j2ee\demos> rmic -v1.2 RmiSortServer
// D:\j2ee\demos> java RmiSortServer
// SortServer bound in rmiregistry
// RmiSortServer.sort() - 18 7 13 3 15 5 12 17 11 4 15 13 20 1 3
//
// D:\j2ee\demos> javac RmiSortClient.java
// D:\j2ee\demos> java RmiSortClient
// 18 7 13 3 15 5 12 17 11 4 15 13 20 1 3
// 18 7 13 3 15 5 12 17 11 4 15 13 20 1 3