/** Sends cached records and closes the channel */
@Override
public void close() {
super.close();
try {
channel.close();
} catch (IOException e) {
System.err.println(
"WARNING: Thermostat error closing socket channel: [" + socket.getAbsolutePath() + "]");
e.printStackTrace();
}
}
private void writeBatch(ArrayList<ThermostatRecord> records) throws IOException {
StringBuilder sb = new StringBuilder();
sb.append("[\n");
boolean first = true;
for (ThermostatRecord rec : records) {
if (!first) {
sb.append(",\n");
} else {
first = false;
}
sb.append(rec.toJson());
}
sb.append("\n]");
ByteBuffer envelope = ByteBuffer.wrap(sb.toString().getBytes(Charset.forName("UTF-8")));
channel.write(envelope);
}
/**
* Constructor
*
* @param sendThreshold min number of records to cache before sending
* @param loseThreshold max number of packages to cache
* @param socket path to socket
* @param batchSize number of records to send at once
* @param attempts number of send attempts to repeat in case of error
* @param breakIntervalMillis number of milliseconds to wait between the attempts
*/
protected ThermostatUnixSocketTransport(
int sendThreshold,
int loseThreshold,
File socket,
int batchSize,
int attempts,
long breakIntervalMillis) {
super(sendThreshold, loseThreshold);
this.batchSize = batchSize;
this.attempts = attempts;
this.breakIntervalMillis = breakIntervalMillis;
if (!socket.exists()) {
throw new ThermostatException("Specified Thermostat socket: [" + socket + "] doesn't exist");
}
this.socket = socket;
try {
this.channel = ThermostatLocalSocketChannel.open(socket);
} catch (Exception e) {
throw new ThermostatException(
"Error opening Thermostat socket: [" + socket.getAbsolutePath() + "]", e);
}
}