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- /*
- * To change this license header, choose License Headers in Project Properties.
- * To change this template file, choose Tools | Templates
- * and open the template in the editor.
- */
- package model;
-
- import java.util.ArrayList;
- import java.util.Vector;
- import java.util.logging.Level;
- import java.util.logging.Logger;
- import javax.sdp.SdpFactory;
- import javax.sdp.SessionDescription;
- import javax.sip.RequestEvent;
- import logger.OhmLogger;
-
- /**
- *
- * @author Jan
- */
- public class SIPSessionDescription
- {
- private SdpFactory sdpFactory;
- private SessionDescription sessionDescription;
- private Vector mediavec;
- private String codsRTP[]; //[RTP-Notation]
- private String codecs[]; //[Codec/SampelRate]
- private static final Logger lgSessionDescription = OhmLogger.getLogger();
-
- public SIPSessionDescription(String myName, String myIPAddress,
- RequestEvent requestEvent, Boolean anfrage)
- {
- //Hier alle unterstützen Codecs eintragen [RTP-Notation][Codec/SampelRate]
- codsRTP = new String[4];
- codsRTP[0]= "0";
- codsRTP[1] ="4";
- codsRTP[2]= "8";
- codsRTP[3]= "18";
-
- codecs = new String[4];
- codecs[0] = "PCMU/8000";
- codecs[1] = "G723/8000";
- codecs[2]= "PCMA/8000";
- codecs[3]= "G729/8000";
-
- mediavec = new Vector();
- try
- {
- sdpFactory = SdpFactory.getInstance();
- sessionDescription = sdpFactory.createSessionDescription();
- sessionDescription.setOrigin(sdpFactory.createOrigin(myName, 8000, 8000, "IN", "IP4", myIPAddress));
- sessionDescription.setSessionName(sdpFactory.createSessionName("SIP Call"));
- sessionDescription.setConnection(sdpFactory.createConnection("IN", "IP4", myIPAddress));
-
- //Media Bod
- if (anfrage == true)
- {
- mediavec.add(sdpFactory.createMediaDescription("audio", 6022, 1, "RTP/AVP", codsRTP)); //(Übertragungstyp, Port, anzahl der Ports, Verbindungstyp,..)
- mediavec.add(sdpFactory.createAttribute("sendrecv", null));
- for (int i = 0; i < codsRTP.length; i++)
- {
- mediavec.add(sdpFactory.createAttribute("rtpmap", codsRTP[i] + " " + codecs[i]));
- }
- }
- else//Vergleich von eigenen Codecs mit Codecs der anruft -> Rückgabe entsprechend wählen
- {
- String[] reqbody = (requestEvent.getRequest()).toString().split("\\s|" + System.getProperty("line.seperator"));
- ArrayList<String> reqSDP = new ArrayList<>();
- for (String req : reqbody)
- {
- if (req.startsWith("a=rtpmap"))
- {
- reqSDP.add(req.replace("a=rtpmap:", ""));
- }
- }
-
- int position = 0;
- ArrayList<String> tempList = new ArrayList<>();
- for (String stcodec : codsRTP)
- {
- if (reqSDP.contains(stcodec))
- {
- tempList.add(stcodec);
- mediavec.add(sdpFactory.createAttribute("rtpmap", codsRTP[position] + " " + codecs[position]));
- }
- position++;
- }
- String[] tempArray = tempList.toArray(new String[tempList.size()]);
- mediavec.add(sdpFactory.createMediaDescription("audio", 6022, 1, "RTP/AVP", tempArray)); //(Übertragungstyp, Port, anzahl der Ports, Verbindungstyp,..)
- mediavec.add(sdpFactory.createAttribute("sendrecv", null));
- }
- sessionDescription.setAttributes(mediavec);
- lgSessionDescription.info("SDP Header erstellt");
- }
- catch (Exception ex)
- {
- lgSessionDescription.getLogger(SIPmodel.class.getName()).log(Level.SEVERE, null, ex);
- }
-
- }
- /**
- * @return the sessionDescription
- */
- public SessionDescription getSessionDescription()
- {
- return sessionDescription;
- }
- }
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