buddylist.java

The source code for this package is located in src/gov/nist/sip/proxy. The proxy is a pure JAIN-SIP

/*
 * BuddyList.java
 *
 * Created on September 25, 2002, 2:46 PM
 */

package gov.nist.sip.instantmessaging;

import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
import java.util.*;
import gov.nist.sip.instantmessaging.presence.*;
/**
 *
 * @author  deruelle
 * @version 1.0
 */
public class BuddyList extends JList {

    private Vector buddies;
    
    private DefaultListModel list;
    private InstantMessagingGUI imGUI;
   
    /** Creates new BuddyList */
    public BuddyList(InstantMessagingGUI imGUI) {
        this.imGUI=imGUI;
        list=new DefaultListModel();
        initList(); 
        this.setModel(list);
        buddies=new Vector();
    }
   
    
/**************************** Methods related to the buddies XML *******************/    
    
    public void writeToXMLFile() {
        try{
            String text="<?xml version='1.0' encoding='us-ascii'?> \n"+
            "<BUDDIES> \n";
            for (int i=0;i<buddies.size();i++) {
                BuddyTag buddyTag=(BuddyTag)buddies.elementAt(i);
                text+=buddyTag.toString();
            }
            text+="</BUDDIES> \n";
            String xmlBuddiesFile=imGUI.getXMLBuddiesFile();
            if (xmlBuddiesFile!=null) {
                IMUtilities.writeFile(xmlBuddiesFile,text);
            }
            else {
               DebugIM.println("BuddyList, writeToXMLFile(), the buddies file does not exist..."+
               " Unable to write the buddies");
            }
        }
        catch(Exception e) {
            DebugIM.println("BuddyList, writeToXMLFile(), unable to write the buddies...");
        }
    }
     
    
    public Vector getBuddies() {
        return buddies;
    }
    
    public void init(Vector buddies) {
        DebugIM.println("DebugIM, BuddyList, init(), There are "+buddies.size()+
        " buddies to upload.");
        for (int i=0;i<buddies.size();i++) {
            BuddyTag buddyTag=(BuddyTag)buddies.elementAt(i);
            String buddy=buddyTag.getURI();
        
            DebugIM.println("DebugIM, BuddyList, init(), we uploaded "+buddy+
            " to the buddy List.");
            if (!hasBuddy(buddy))
                addBuddy(buddy,"offline");
        }
    }

    public boolean hasAuthorization(String bud) {
            return hasBuddy(bud);
    }
    
    
    public boolean hasBuddy(String bud) {
            for (int i=0;i<buddies.size();i++) {
                BuddyTag buddyTag=(BuddyTag)buddies.elementAt(i);
                String buddy=buddyTag.getURI();
                
                if (buddy.equals(bud)) {
                    DebugIM.println("DebugIM, BuddyList, hasBuddy(), the buddy is"+
                    " in the list");
                    return true;
                }
            }
            return false;
    }
    
  
    public BuddyTag getBuddyTag(String bud) {
            for (int i=0;i<buddies.size();i++) {
                BuddyTag buddyTag=(BuddyTag)buddies.elementAt(i);
                String buddy=buddyTag.getURI();
                if (buddy.equals(bud)) {      
                    return buddyTag;
                }
            }
            return null;
    }
    
    public void addBuddy(String buddy) {
            BuddyTag buddyTag=new BuddyTag();
            buddyTag.setURI(buddy);
            buddies.addElement(buddyTag);
    }
    
    public void removeBuddy(String bud) {
        for (int i=0;i<buddies.size();i++) {
            BuddyTag buddyTag=(BuddyTag)buddies.elementAt(i);
            String buddy=buddyTag.getURI();
            if (buddy.equals(bud)) {
                buddies.remove(i);
                break;
            }
        }
    }
    
    public void changeAllBuddiesStatus(String status) {
            for (int i=0;i<buddies.size();i++) {
                 BuddyTag buddyTag=(BuddyTag)buddies.elementAt(i);
                String buddy=buddyTag.getURI();
                changeBuddyStatus(buddy,status);
            }
    }
    
/**************************** Methods related to the buddy list *******************/
    

    public void initList() {
        list.removeAllElements();
        list.addElement("(empty)");
    }
    
  
    
    public int getBuddyIndex(String buddy) {
        try{
                for (int i=0;i<list.size();i++) {
                    String bud=(String)list.elementAt(i);
                    //DebugIM.println("bud:"+bud);
                    if ( bud.equals("(empty)") )  {
                        return -1;
                    }
                    else{
                        int beginIndex=bud.indexOf("(");
                        int endIndex=bud.indexOf(")");
                        String realBud=bud.substring(0,beginIndex-1).trim();
                        if (realBud.equals(buddy) )
                            return i;
                    }
                }
                return -1;
        }
        catch(Exception e){
            DebugIM.println("BuddyList, getBuddyIndex(), error:");
            e.printStackTrace(); 
           return -1;
        }
    }
    
    public String getBuddyStatus(String buddy) {
        try{
            int index=getBuddyIndex(buddy);
            if (index!=-1) {
                String bud=(String)list.get(index);
                int beginIndex=bud.indexOf("(");
                int endIndex=bud.indexOf(")");
                return bud.substring(beginIndex+1,endIndex).trim();
            }
            else {
                return null;
            }
        }
        catch(Exception e)
        {
           e.printStackTrace(); 
           DebugIM.println("BuddyList, getBuddyStatus(), the "+buddy+" is not"+
           " in the buddy list: no status!!!");
            return null;   
        }
    }
   
    
    public void changeBuddyStatus(String buddy,String status) {
        try{
            String stat=getBuddyStatus(buddy);
            if (stat==null) {
                DebugIM.println("BuddyList, changeBuddyStatus(), the "+buddy+" is not"+
           " in the buddy list: no changed status!!!");
            }
            else
            if (stat.equals(status) ) {
                // we do nothing
                 DebugIM.println("BuddyList, changeBuddyStatus(), the status ("+stat+") is"+
                 " already the same for the buddy: "+buddy+", we do nothing!!!");
            }
            else {
                 DebugIM.println("BuddyList, changeBuddyStatus(), the status ("+stat+") has"+
                 " to be changed to "+status+" for the buddy: "+buddy);
                removeFromBuddyList(buddy);
                addBuddy(buddy,status);
            }
        }
        catch(Exception e)
        {
          e.printStackTrace();
        }
    }
    
    public void addBuddy(String buddy,String status) {
        if (list.size()==1) {
            String bud=(String)list.get(0);
            if (bud.equals("(empty)")) {
                list.remove(0);
            }
        }
        addBuddy(buddy);
        list.addElement(buddy+" ("+status+")");
    }
    
      public String getBuddy(int index) {
        try{
            String buddy=(String)list.get(index);
            if (buddy.equals("(empty)"))
                return null;
            
             int beginIndex=buddy.indexOf("(");
             return buddy.substring(0,beginIndex).trim();
            
        }
        catch(Exception e) {
            return null;
        }
    }
    
    public void removeSelectedBuddy() {
        if (isSelectedBuddy()) {
                String buddy=getBuddy(this.getSelectedIndex());
               
                removeBuddy(buddy);
                removeFromBuddyList(buddy);
                if (list.size()==0) 
                    initList();
        }
        else {
            new AlertInstantMessaging("You must select a contact to remove!",
            JOptionPane.ERROR_MESSAGE);
        }
    }
    
    public void removeFromBuddyList(String buddy) {
          DebugIM.println("BuddyList, removeFromBuddyList(), the "+buddy+" is going "+
          " to be removed ");
            
            int index=getBuddyIndex(buddy);
            DebugIM.println("BuddyList, removeFromBuddyList(), index: "+index);
            if (index!=-1) {
                list.remove(index);
            }
    }

    public boolean isSelectedBuddy() {
        String buddy=null;
        if (this.getSelectedIndex()==-1)
            return false;
        else {
            buddy=getBuddy(this.getSelectedIndex());
            //DebugIM.println(buddy);
            if (buddy.equals("(empty)"))
                return false;
            else return true;
        }
    }

}