protected void sendHeartBeat() {
String request =
FactoryManagerUtils.getStringProperty(
session,
ClientFactoryManager.HEARTBEAT_REQUEST,
ClientFactoryManager.DEFAULT_KEEP_ALIVE_HEARTBEAT_STRING);
try {
Buffer buf = session.createBuffer(SshConstants.SSH_MSG_GLOBAL_REQUEST);
buf.putString(request);
buf.putBoolean(false);
session.writePacket(buf);
} catch (IOException e) {
log.info("Error sending keepalive message=" + request, e);
}
}
protected void startHeartBeat() {
long interval =
FactoryManagerUtils.getLongProperty(
session,
ClientFactoryManager.HEARTBEAT_INTERVAL,
ClientFactoryManager.DEFAULT_HEARTBEAT_INTERVAL);
if (interval > 0L) {
FactoryManager manager = session.getFactoryManager();
ScheduledExecutorService service = manager.getScheduledExecutorService();
service.scheduleAtFixedRate(
new Runnable() {
@Override
public void run() {
sendHeartBeat();
}
},
interval,
interval,
TimeUnit.MILLISECONDS);
if (log.isDebugEnabled()) {
log.debug("startHeartbeat - started at interval={}", Long.valueOf(interval));
}
}
}