Examples with IoTDataRequest org.jivesoftware.smackx.iot.data.element.IoTDataRequest used on opensource projects

Example 1 with IoTDataRequest

use of org.jivesoftware.smackx.iot.data.element.IoTDataRequest in project Smack by igniterealtime.

the class IoTDataManager method requestMomentaryValuesReadOut.

/**
     * Try to read out a things momentary values.
     *
     * @param jid the full JID of the thing to read data from.
     * @return a list with the read out data.
     * @throws NoResponseException
     * @throws XMPPErrorException
     * @throws NotConnectedException
     * @throws InterruptedException
     */
public List<IoTFieldsExtension> requestMomentaryValuesReadOut(EntityFullJid jid) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
    final XMPPConnection connection = connection();
    final int seqNr = nextSeqNr.incrementAndGet();
    IoTDataRequest iotDataRequest = new IoTDataRequest(seqNr, true);
    iotDataRequest.setTo(jid);
    StanzaFilter doneFilter = new IoTFieldsExtensionFilter(seqNr, true);
    StanzaFilter dataFilter = new IoTFieldsExtensionFilter(seqNr, false);
    // Setup the IoTFieldsExtension message collectors before sending the IQ to avoid a data race.
    StanzaCollector doneCollector = connection.createStanzaCollector(doneFilter);
    StanzaCollector.Configuration dataCollectorConfiguration = StanzaCollector.newConfiguration().setStanzaFilter(dataFilter).setCollectorToReset(doneCollector);
    StanzaCollector dataCollector = connection.createStanzaCollector(dataCollectorConfiguration);
    try {
        connection.createStanzaCollectorAndSend(iotDataRequest).nextResultOrThrow();
        // Wait until a message with an IoTFieldsExtension and the done flag comes in.
        doneCollector.nextResult();
    } finally {
        // Ensure that the two collectors are canceled in any case.
        dataCollector.cancel();
        doneCollector.cancel();
    }
    int collectedCount = dataCollector.getCollectedCount();
    List<IoTFieldsExtension> res = new ArrayList<>(collectedCount);
    for (int i = 0; i < collectedCount; i++) {
        Message message = dataCollector.pollResult();
        IoTFieldsExtension iotFieldsExtension = IoTFieldsExtension.from(message);
        res.add(iotFieldsExtension);
    }
    return res;
}