/**
* Sends the data contained in a specific byte array as application data through the DTLS
* connection of this <tt>DtlsPacketTransformer</tt>.
*
* @param buf the byte array containing data to send.
* @param off the offset in <tt>buf</tt> where the data begins.
* @param len the length of data to send.
*/
public void sendApplicationData(byte[] buf, int off, int len) {
DTLSTransport dtlsTransport = this.dtlsTransport;
Throwable throwable = null;
if (dtlsTransport != null) {
try {
dtlsTransport.send(buf, off, len);
} catch (IOException ioe) {
throwable = ioe;
}
} else {
throwable = new NullPointerException("dtlsTransport");
}
if (throwable != null) {
// SrtpControl.start(MediaType) starts its associated
// TransformEngine. We will use that mediaType to signal the normal
// stop then as well i.e. we will ignore exception after the
// procedure to stop this PacketTransformer has begun.
if (mediaType != null && !tlsPeerHasRaisedCloseNotifyWarning) {
logger.error("Failed to send application data over DTLS transport: ", throwable);
}
}
}
