imserviceimpl.java

java源代码

// IMServiceImpl.java
// IMServiceImpl implements IMService interface
// is service side of IM application
package com.deitel.advjhtp1.jini.IM.service;

// Java core packages
import java.io.*;
import java.rmi.server.UnicastRemoteObject;
import java.rmi.RemoteException;
import java.util.StringTokenizer;

// Deitel packages
import com.deitel.advjhtp1.jini.IM.IMPeer;
import com.deitel.advjhtp1.jini.IM.IMPeerImpl;
import com.deitel.advjhtp1.jini.IM.Message;
import com.deitel.advjhtp1.jini.IM.client.IMPeerListener;

public class IMServiceImpl extends UnicastRemoteObject 
   implements IMService, Serializable {
   
   private static final long SerialVersionUID = 20010808L;
   private String userName = "Anonymous";
   
   // IMService no-argument constructor
   public IMServiceImpl() throws RemoteException{}
   
   // IMService constructor takes userName
   public IMServiceImpl( String name ) throws RemoteException
   {
      userName = name;
   }
   
   // sets service韘 userName
   public void setUserName( String name ) 
   {
      userName = name;
   }
   
   // return RMI reference to an IMPeer on the receiver side
   public IMPeer connect( IMPeer sender )  
     throws RemoteException
   {
      // Make a GUI and IMPeerImpl to be sent to remote peer
      IMPeerListener listener = 
         new IMPeerListener( userName );
      
      IMPeerImpl me = new IMPeerImpl( userName );
      me.addListener( listener );
      
      // add remote peer to my GUI
      listener.addPeer( sender );
      
      //send my IMPeerImpl to him
      return me;
   
   }  // end method connect
}

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 * (C) Copyright 2002 by Deitel & Associates, Inc. and         *
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