Java Connection类代码示例

import javax.sdp.Connection; //导入依赖的package包/类
/**
 * Set the connection data for this entity.
 * 
 * @param conn to set
 * @throws SdpException if the parameter is null
 */
public void setConnection(Connection conn) throws SdpException {
  if (conn == null) throw new SdpException("The parameter is null");
  if (conn instanceof ConnectionField) {
    ConnectionField c = (ConnectionField) conn;
    connectionImpl = c;
  } else
    throw new SdpException("Bad implementation class ConnectionField");
}
 

import javax.sdp.Connection; //导入依赖的package包/类
/**
 * Set the connection data for this entity
 * 
 * @param conn to set
 * @throws SdpException if the connexion is null
 */
public void setConnection(Connection conn) throws SdpException {
  if (conn == null) throw new SdpException("The conn is null");
  if (conn instanceof ConnectionField) {
    connectionField = (ConnectionField) conn;

  } else
    throw new SdpException("bad implementation");
}
 

import javax.sdp.Connection; //导入依赖的package包/类
/**
 * Generates the Hold Description for a Call.
 *
 * @param setAudio set hold on Audio.
 * @param setVideo set hold on Video.
 * @param call     the call that you want to hold.
 * @return SessionDescription of a call.
 * @throws MediaException
 */
public SessionDescription generateHoldSdpDescription(boolean setAudio, boolean setVideo, Call call)
        throws MediaException {
    try {
        SessionDescription sessDescr = sdpFactory
                .createSessionDescription();

        Version v = sdpFactory.createVersion(0);

        InetSocketAddress publicAudioAddress = NetworkAddressManager
                .getPublicAddressFor(((MediaDescription) (call.getLocalSdpDescription().getMediaDescriptions(true).get(0))).getMedia().getMediaPort());
        InetAddress publicIpAddress = publicAudioAddress.getAddress();
        String addrType = publicIpAddress instanceof Inet6Address ? "IP6"
                : "IP4";

        Origin o = sdpFactory.createOrigin(SIPConfig.getUserName()
                .replace(' ', '_'), 20109217, 2, "IN", addrType,
                publicIpAddress.getHostAddress());
        SessionName s = sdpFactory.createSessionName("<SparkPhone>");
        Connection c = sdpFactory.createConnection("IN", addrType,
                publicIpAddress.getHostAddress());
        TimeDescription t = sdpFactory.createTimeDescription();
        Vector<TimeDescription> timeDescs = new Vector<TimeDescription>();
        timeDescs.add(t);
        String[] formats = new String[getAudioFormats().size()];

        int i = 0;
        for (AudioFormat audioFormat : getAudioFormats()) {
            formats[i++] = AudioFormatUtils.findCorrespondingSdpFormat(audioFormat.getEncoding());
        }

        MediaDescription am = sdpFactory.createMediaDescription(
                "audio", publicAudioAddress.getPort(), 1, "RTP/AVP",
                formats);

        am.setAttribute(setAudio ? "sendonly" : "sendrecv", null);

        am.setAttribute("rtmap:101", "telephone-event/"
                + publicAudioAddress.getPort());

        Vector<MediaDescription> mediaDescs = new Vector<MediaDescription>();

        mediaDescs.add(am);

        sessDescr.setVersion(v);
        sessDescr.setOrigin(o);
        sessDescr.setConnection(c);
        sessDescr.setSessionName(s);
        sessDescr.setTimeDescriptions(timeDescs);
        if (mediaDescs.size() > 0)
            sessDescr.setMediaDescriptions(mediaDescs);
        return sessDescr;
    }
    catch (SdpException exc) {
        throw new MediaException(
                "An SDP exception occurred while generating local sdp description",
                exc);
    }
}
 

import javax.sdp.Connection; //导入依赖的package包/类
/**
 * Returns the connection information associated with this object. This may be null for
 * SessionDescriptions if all Media objects have a connection object and may be null for Media
 * objects if the corresponding session connection is non-null.
 * 
 * @return connection
 */
public Connection getConnection() {
  return connectionImpl;
}
 

import javax.sdp.Connection; //导入依赖的package包/类
/**
 * Returns the connection information associated with this object. This may be null for
 * SessionDescriptions if all Media objects have a connection object and may be null for Media
 * objects if the corresponding session connection is non-null.
 * 
 * @return connection
 */
public Connection getConnection() {

  return connectionField;

}