想了解如何调用onStarted（）。 kaaClient.start（）是否在onStarted（）上执行？我尝试使用ecplise进行调试，发现它总是执行“sleepForSeconds（MAX_SECONDS_TO_INIT_KAA）;”在去“LOG.info（” - = Kaa client started = - “）之前”但我无法判断onStarted（）何时被执行。
public static void main(String[] args) {
LOG.info("--= Data collection demo started =--");
/*
* Create a Kaa client with the Kaa desktop context.
*/
KaaClient kaaClient = Kaa.newClient(new DesktopKaaPlatformContext(), new SimpleKaaClientStateListener() {
@Override
public void onStarted() {
LOG.info("--= Kaa client started =--");
}
@Override
public void onStopped() {
LOG.info("--= Kaa client stopped =--");
}
}, true);
/*
* Set record count strategy for uploading every log record as soon as it is created.
*/
kaaClient.setLogUploadStrategy(new RecordCountLogUploadStrategy(LOGS_DEFAULT_THRESHOLD));
/*
* Displays endpoint's configuration and change sampling period each time configuration will be updated.
*/
kaaClient.addConfigurationListener(new ConfigurationListener() {
@Override
public void onConfigurationUpdate(Configuration configuration) {
LOG.info("--= Endpoint configuration was updated =--");
displayConfiguration(configuration);
Integer newSamplePeriod = configuration.getSamplePeriod();
if ((newSamplePeriod != null) && (newSamplePeriod > 0)) {
changeMeasurementPeriod(kaaClient, newSamplePeriod);
} else {
LOG.warn("Sample period value (= {}) in updated configuration is wrong, so ignore it.", newSamplePeriod);
}
}
});
/*
* Start the Kaa client and connect it to the Kaa server.
*/
kaaClient.start();
sleepForSeconds(MAX_SECONDS_TO_INIT_KAA);
/*
* Start periodical temperature value generating and sending results to Kaa node
*/
startMeasurement(kaaClient);
LOG.info("*** Press Enter to stop sending log records ***");
waitForAnyInput();
/*
* Stop generating and sending data to Kaa node
*/
stopMeasurement();
/*
* Stop the Kaa client and release all the resources which were in use.
*/
kaaClient.stop();
displayResults();
LOG.info("--= Data collection demo stopped =--");
}