Examples with ScheduledExecutorSchedulingProvider org.apache.samza.monitor.ScheduledExecutorSchedulingProvider used on opensource projects

Example 1 with ScheduledExecutorSchedulingProvider

use of org.apache.samza.monitor.ScheduledExecutorSchedulingProvider in project samza by apache.

the class SamzaRestService method main.

/**
   * Command line interface to run the server.
   *
   * @param args arguments supported by {@link org.apache.samza.util.CommandLine}.
   *             In particular, --config-path and --config-factory are used to read the Samza REST config file.
   * @throws Exception if the server could not be successfully started.
   */
public static void main(String[] args) throws Exception {
    try {
        SamzaRestConfig config = parseConfig(args);
        ReadableMetricsRegistry metricsRegistry = new MetricsRegistryMap();
        log.info("Creating new SamzaRestService with config: {}", config);
        MetricsConfig metricsConfig = new MetricsConfig(config);
        Map<String, MetricsReporter> metricsReporters = MetricsReporterLoader.getMetricsReporters(metricsConfig, Util.getLocalHost().getHostName());
        SamzaRestService restService = new SamzaRestService(new Server(config.getPort()), metricsRegistry, metricsReporters, new ServletContextHandler(ServletContextHandler.SESSIONS));
        // Add applications
        SamzaRestApplication samzaRestApplication = new SamzaRestApplication(config);
        ServletContainer container = new ServletContainer(samzaRestApplication);
        restService.addServlet(container, "/*");
        // Schedule monitors to run
        ScheduledExecutorService schedulingService = Executors.newScheduledThreadPool(1);
        ScheduledExecutorSchedulingProvider schedulingProvider = new ScheduledExecutorSchedulingProvider(schedulingService);
        SamzaMonitorService monitorService = new SamzaMonitorService(config, metricsRegistry, schedulingProvider);
        monitorService.start();
        restService.runBlocking();
        monitorService.stop();
    } catch (Throwable t) {
        log.error("Exception in main.", t);
    }
}