How to use

getInstance

method

in

uk.gov.dstl.baleen.core.metrics.MetricsFactory

/**
 * Get a new metrics provider for a specific class.
 *
 * @param prefix
 * @param clazz
 * @return
 */
public static Metrics getMetrics(String prefix, Class<?> clazz) {
 return new Metrics(getInstance(), prefix, clazz);
}

/**
 * Get a new metrics provider for a specific class, without a prefix.
 *
 * @param clazz
 * @return
 */
public static Metrics getMetrics(Class<?> clazz) {
 return new Metrics(getInstance(), clazz);
}

/**
 * Get a new metrics provider for a specific class.
 *
 * @param prefix
 * @param clazz
 * @return
 */
public static Metrics getMetrics(String prefix, Class<?> clazz) {
 return new Metrics(getInstance(), prefix, clazz);
}

/**
 * Get a new metrics provider for a specific class, without a prefix.
 *
 * @param clazz
 * @return
 */
public static Metrics getMetrics(Class<?> clazz) {
 return new Metrics(getInstance(), clazz);
}

/** Start timing the processing of a document */
public void startDocumentProcess() {
 finishDocumentProcess(); // Check we've finished the timing of the previous document
 documentTimerContext =
   MetricsFactory.getInstance().getTimer(pipelineName, DOCUMENT_TIMER).time();
}

/** Start timing the processing of a document */
public void startDocumentProcess() {
 finishDocumentProcess(); // Check we've finished the timing of the previous document
 documentTimerContext =
   MetricsFactory.getInstance().getTimer(pipelineName, DOCUMENT_TIMER).time();
}

/** Shutdown the sub components. */
public synchronized void shutdown() {
 if (started) {
  LOGGER.info("Shutting down");
  started = false;
  List<AbstractBaleenComponent> components =
    Arrays.asList(pipelineManager, jobManager, webApi, logging);
  for (AbstractBaleenComponent component : components) {
   if (component != null) {
    try {
     component.stop();
    } catch (BaleenException e) {
     LOGGER.error("Failed to stop " + component.getClass().getSimpleName(), e);
    }
   }
  }
  MetricsFactory metrics = MetricsFactory.getInstance();
  if (metrics != null) {
   metrics.stop();
  }
  LOGGER.info("Shutdown complete");
 }
}

/** Shutdown the sub components. */
public synchronized void shutdown() {
 if (started) {
  LOGGER.info("Shutting down");
  started = false;
  List<AbstractBaleenComponent> components =
    Arrays.asList(pipelineManager, jobManager, webApi, logging);
  for (AbstractBaleenComponent component : components) {
   if (component != null) {
    try {
     component.stop();
    } catch (BaleenException e) {
     LOGGER.error("Failed to stop " + component.getClass().getSimpleName(), e);
    }
   }
  }
  MetricsFactory metrics = MetricsFactory.getInstance();
  if (metrics != null) {
   metrics.stop();
  }
  LOGGER.info("Shutdown complete");
 }
}

@Override
public final void getNext(final JCas jCas) throws IOException, CollectionException {
 getMonitor().startFunction("getNext");
 MetricsFactory.getInstance()
   .getPipelineMetrics(monitor.getPipelineName())
   .startDocumentProcess();
 jCas.setDocumentText(JobSettings.class.getSimpleName());
 jCas.setDocumentLanguage("en");
 final JobSettings settings = new JobSettings(jCas);
 for (final Map.Entry<String, String> e : config.entrySet()) {
  settings.set(e.getKey(), e.getValue());
 }
 getMonitor().finishFunction("getNext");
}

@Override
public final void getNext(final JCas jCas) throws IOException, CollectionException {
 getMonitor().startFunction("getNext");
 MetricsFactory.getInstance()
   .getPipelineMetrics(monitor.getPipelineName())
   .startDocumentProcess();
 jCas.setDocumentText(JobSettings.class.getSimpleName());
 jCas.setDocumentLanguage("en");
 final JobSettings settings = new JobSettings(jCas);
 for (final Map.Entry<String, String> e : config.entrySet()) {
  settings.set(e.getKey(), e.getValue());
 }
 getMonitor().finishFunction("getNext");
}

@Before
public void before() {
 // We need to clear the registry
 MetricsFactory.getInstance().removeAll();
}

MetricsFactory metrics = MetricsFactory.getInstance();
metrics.configure(configuration);
metrics.start();

MetricsFactory metrics = MetricsFactory.getInstance();
metrics.configure(configuration);
metrics.start();

@Override
public final void getNext(JCas jCas) throws IOException, CollectionException {
 monitor.startFunction("getNext");
 MetricsFactory.getInstance()
   .getPipelineMetrics(monitor.getPipelineName())
   .startDocumentProcess();
 doGetNext(jCas);
 monitor.finishFunction("getNext");
 monitor.persistCounts();
}

@Override
public final void getNext(JCas jCas) throws IOException, CollectionException {
 monitor.startFunction("getNext");
 MetricsFactory.getInstance()
   .getPipelineMetrics(monitor.getPipelineName())
   .startDocumentProcess();
 doGetNext(jCas);
 monitor.finishFunction("getNext");
 monitor.persistCounts();
}

@Test
public void testInstance() {
 assertNotNull(MetricsFactory.getInstance());
 Metrics m1 = MetricsFactory.getMetrics(MetricsFactoryTest.class);
 Metrics m2 = MetricsFactory.getMetrics("Testing", MetricsFactoryTest.class);
 assertTrue(m1.getBase().contains(MetricsFactoryTest.class.getCanonicalName()));
 assertTrue(m2.getBase().contains(MetricsFactoryTest.class.getCanonicalName()));
 assertTrue(m2.getBase().startsWith("Testing"));
}

 @Test
 public void test() throws Exception {
  PipelineMetrics pm = MetricsFactory.getInstance().getPipelineMetrics(PIPELINE_NAME);

  assertEquals(PIPELINE_NAME, pm.getPipelineName());

  pm.startDocumentProcess();
  Thread.sleep(10);
  pm.finishDocumentProcess();

  Timer t = MetricsFactory.getInstance().getTimer(PIPELINE_NAME, "documentProcessingTime");
  assertEquals(1, t.getCount());
  assertTrue(t.getMeanRate() > 0);

  assertEquals(pm, MetricsFactory.getInstance().getPipelineMetrics(PIPELINE_NAME));
 }
}

  new InstrumentedAppender(MetricsFactory.getInstance().getRegistry());
instrumentedAppender.setContext(context);
instrumentedAppender.start();

  new InstrumentedAppender(MetricsFactory.getInstance().getRegistry());
instrumentedAppender.setContext(context);
instrumentedAppender.start();

@Test
public void testDoesntCrash() {
 MetricsFactory factory = MetricsFactory.getInstance();
 factory.getRegistry().addListener(new LoggingMetricListener());
 assertNotNull(factory.getCounter(LoggingMetricListenerTest.class, "a"));
 assertNotNull(factory.getHistogram(LoggingMetricListenerTest.class, "b"));
 assertNotNull(factory.getMeter(LoggingMetricListenerTest.class, "c"));
 assertNotNull(factory.getTimer(LoggingMetricListenerTest.class, "d"));
 factory.removeAll();
}