uac.java

Peers is a very minimalistic SIP User-Agent. It s a softphone, written in java, and it has been test

/*
    This file is part of Peers.

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
    
    Copyright 2007, 2008 Yohann Martineau 
*/

package net.sourceforge.peers.sip.core.useragent;

import net.sourceforge.peers.media.CaptureRtpSender;
import net.sourceforge.peers.media.IncomingRtpReader;
import net.sourceforge.peers.sip.RFC3261;
import net.sourceforge.peers.sip.syntaxencoding.SipUriSyntaxException;
import net.sourceforge.peers.sip.transactionuser.Dialog;
import net.sourceforge.peers.sip.transactionuser.DialogManager;
import net.sourceforge.peers.sip.transactionuser.DialogStateConfirmed;
import net.sourceforge.peers.sip.transactionuser.DialogStateEarly;
import net.sourceforge.peers.sip.transport.SipRequest;

public class UAC {

    private static UAC INSTANCE;
    
    public static UAC getInstance() {
        if (INSTANCE == null) {
            INSTANCE = new UAC();
        }
        return INSTANCE;
    }
    
    private InitialRequestManager initialRequestManager;
    private MidDialogRequestManager midDialogRequestManager;
    private String profileUri;
    
    private UAC() {
        initialRequestManager = new InitialRequestManager();
        midDialogRequestManager = new MidDialogRequestManager();
        profileUri = "sip:[e-mail]";
    }
    
    public void invite(String requestUri, String callId) throws SipUriSyntaxException {
        //TODO make profileUri configurable
        initialRequestManager.createInitialRequest(requestUri,
                RFC3261.METHOD_INVITE, profileUri, callId);
        
    }

    public void terminate(Dialog dialog) {
        terminate(dialog, null);
    }
    
    public void terminate(Dialog dialog, SipRequest sipRequest) {
        if (dialog != null) {
            if (dialog.getState() instanceof DialogStateEarly) {
                //TODO generate cancel
                initialRequestManager.createCancel(sipRequest);
            } else if (dialog.getState() instanceof DialogStateConfirmed) {
                midDialogRequestManager.generateMidDialogRequest(
                        dialog, RFC3261.METHOD_BYE);
                
            }
            DialogManager.getInstance().removeDialog(dialog.getId());
        }
        CaptureRtpSender captureRtpSender =
            UserAgent.getInstance().getCaptureRtpSender();
        if (captureRtpSender != null) {
            captureRtpSender.stop();
            UserAgent.getInstance().setCaptureRtpSender(null);
        }
        IncomingRtpReader incomingRtpReader =
            UserAgent.getInstance().getIncomingRtpReader();
        if (incomingRtpReader != null) {
            incomingRtpReader.stop();
            UserAgent.getInstance().setIncomingRtpReader(null);
        }
    }
    
    public InitialRequestManager getInitialRequestManager() {
        return initialRequestManager;
    }

    public MidDialogRequestManager getMidDialogRequestManager() {
        return midDialogRequestManager;
    }

    public String getProfileUri() {
        return profileUri;
    }
}