tictactoeinviteaction.java

jxta官方例程

/*
 * Created on Feb 25, 2005
 *
 */
package net.jxta.myjxta.plugins.tictactoe;

import java.awt.event.ActionEvent;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.ResourceBundle;

import javax.swing.AbstractAction;

import net.jxta.document.AdvertisementFactory;
import net.jxta.document.MimeMediaType;
import net.jxta.document.StructuredDocument;
import net.jxta.document.StructuredDocumentFactory;
import net.jxta.document.StructuredTextDocument;
import net.jxta.endpoint.MessageElement;
import net.jxta.endpoint.TextDocumentMessageElement;
import net.jxta.myjxta.dialog.Dialog;
import net.jxta.myjxta.dialog.DialogManager;
import net.jxta.myjxta.dialog.DialogMessage;
import net.jxta.myjxta.plugins.tictactoe.commands.TicTacToeCommand;
import net.jxta.myjxta.dialog.util.RemoteCommandInvoker;
import net.jxta.myjxta.util.Group;
import net.jxta.myjxta.util.GroupNode;
import net.jxta.myjxta.util.Peer;
import net.jxta.myjxta.util.PeerNode;
import net.jxta.myjxta.util.Resources;
import net.jxta.myjxta.View;
import net.jxta.pipe.PipeService;
import net.jxta.protocol.PipeAdvertisement;

import org.apache.log4j.Level;
import org.apache.log4j.Logger;

public class TicTacToeInviteAction extends AbstractAction {
    
    private static final int INTERVAL = 250;
    private static final int MAX = INTERVAL * 4 * 75;
    private static final Logger LOG = Logger.getLogger (TicTacToeInviteAction.class.getName ());
    
    private View view = null;
    
    private static final ResourceBundle STRINGS = Resources.getStrings();
    
    public TicTacToeInviteAction (String name, View view) {
        super (name);
        
        this.view = view;
        
        if (LOG.isEnabledFor (Level.INFO)) {
            LOG.info ("TicTavToeAction instantiated");
        }
    }
    
    public void actionPerformed (ActionEvent ae) {
        PeerNode pn = (PeerNode)this.view.getJxtaNode (PeerNode.class);
        final Peer p = pn != null ? pn.getPeer () : null;
        final Group g = pn != null ? ((GroupNode)(pn.getParent ())).getGroup () : null;
        String status = null;
        
        if (p != null &&
                g != null) {
            status = STRINGS.getString ("status.command.initiate") +
                    ": " + p.getName ();
            
            if (LOG.isEnabledFor (Level.INFO)) {
                LOG.info (status);
            }
            
            new Thread (new Runnable () {
                public void run () {
                    process (g, p);
                }
            }, getClass ().getName () + ":getConnection").start ();
        } else {
            status = STRINGS.getString ("error.peer.invalid") +
                    " " + p!=null?p.getName():null;
            
            if (LOG.isEnabledFor (Level.ERROR)) {
                LOG.error (status);
            }
        }
        
        if (status != null) {
            this.view.setStatus (status);
        }
    }
    
    private void process (Group g, Peer p) {
        LOG.setLevel(Level.INFO);
        String status = "initiating tictactoe action";
        this.view.setStatus (status);
        
        if (LOG.isEnabledFor (Level.INFO)) {
            LOG.info (status);
        }
        
        //get pipe adv from DialogManager - this is the tictactoePipe
        StructuredDocument d = getPipeAdv (g);
        //attach it as a message element
        TextDocumentMessageElement te = d != null ?
            new TextDocumentMessageElement (TicTacToeCommand.PIPE,
                (StructuredTextDocument)d, null) :
            null;
        
        
        
        
        if (te != null) {
            
            
            
            if (LOG.isEnabledFor (Level.INFO)) {
                LOG.info (status);
                LOG.info ("instantiating tictactoeCommand");
            }
            
            //command fetecher will send out a command on the command pipe
            RemoteCommandInvoker cf = new RemoteCommandInvoker (g, p.getPipeAdvertisement (),
                    new TicTacToeCommand (), this.view.getControl());
            
            Map<String, MessageElement> m = new HashMap<String, MessageElement> ();
            // add the our pipe element
            m.put (TicTacToeCommand.PIPE, te);
            
            if (LOG.isEnabledFor (Level.INFO)) {
                LOG.info ("dispatch tictactoecommand");
            }
            
            cf.invoke (MAX, m);
            //get respsonse
            DialogMessage r = cf.getResponse ();
            
            if (LOG.isEnabledFor (Level.INFO)) {
                LOG.info ("tictactoeInvitationCommand response: " + r);
            }
            //this is why its important to have a consistent PIPE element in TestCommand
            MessageElement pae = r != null ?
                r.getMessageElement (TicTacToeCommand.PIPE) :
                null;
            
            if (pae != null) {
                status = "tictactoe pipe import" +
                        ": " + p.getName ();
                
                this.view.setStatus (status);
                
                if (LOG.isEnabledFor (Level.INFO)) {
                    LOG.info (status);
                    LOG.info ("adding dialog");
                }
                
                

                PipeAdvertisement pipeAdv = getPipeAdv(pae);
                if (pipeAdv!=null){
                    TicTacToeDialog dialog = (TicTacToeDialog) DialogManager.getDialog (TicTacToeDialog.class,
		                                g, pipeAdv, this.view.getControl());
                    dialog.setLocallyInitiated (true);
		    this.view.getControl().addDialog (
                            dialog);
                } else {
                    //this can happen! maybe if the user connects to his own peer?
                }
            } else {
                status = "request tictactoe pipe" +
                        ": " + p.getName ();
                
                this.view.setStatus (status);
                
                if (LOG.isEnabledFor (Level.ERROR)) {
                    LOG.error (status);
                }
            }
        } else {
            if (LOG.isEnabledFor (Level.ERROR)) {
                LOG.error ("invalid response");
            }
        }
        
        
        LOG.setLevel(Level.ERROR);
    }
    
    private PipeAdvertisement getPipeAdv (MessageElement me) {
        if (LOG.isEnabledFor (Level.INFO)) {
            LOG.info ("get pipeAdv");
        }
        
        StructuredDocument sd = null;

        try {
            sd = StructuredDocumentFactory.newStructuredDocument (MimeMediaType.XMLUTF8,
                    me.getStream());
        } catch (IOException e) {
            LOG.error ("can't document", e);
        }

//        if (me instanceof ByteArrayMessageElement) {
//            if (LOG.isEnabledFor (Level.INFO)) {
//                LOG.info ("me instanceof ByteMessageElement");
//            }
//
//            try {
//                sd = StructuredDocumentFactory.newStructuredDocument (MimeMediaType.XMLUTF8,
//                        ((ByteArrayMessageElement)me).getStream ());
//            } catch (IOException ioe) {
//                if (LOG.isEnabledFor (Level.ERROR)) {
//                    LOG.error ("can't document", ioe);
//                }
//            }
//        } else {
//            if (LOG.isEnabledFor (Level.INFO)) {
//                LOG.info ("me not instanceof ByteMessageElement");
//            }
//        }
        
        PipeAdvertisement pa = null;
        
        if (sd != null) {
            try {
                pa = (PipeAdvertisement)AdvertisementFactory.
                        newAdvertisement (MimeMediaType.XMLUTF8,
                        sd.getStream ());
            } catch (IOException ioe) {
                if (LOG.isEnabledFor (Level.ERROR)) {
                    LOG.error ("can't get pipe advertisement", ioe);
                }
            }
        }
        
        return pa;
    }
    private StructuredDocument getPipeAdv (Group g) {
        if (LOG.isEnabledFor (Level.INFO)) {
            LOG.info ("getPipeAdvl");
        }
        System.out.println("TTT Dilaog in invite action");
        String pn = Dialog.getDialogNamer (TicTacToeDialog.class).
                getDialogName (g.getPeerGroup ().getPeerName ());
        PipeAdvertisement pa = DialogManager.getInstance (g, pn,
                PipeService.UnicastType).getPipeAdv (g.getPeerGroup ());
        
        return (StructuredDocument)pa.getDocument (MimeMediaType.XMLUTF8);
    }
    
    
}