Java Code Examples for com.codahale.metrics.MetricRegistry#MetricSupplier

/**
 * Create a {@link Counter} supplier.
 * @param loader resource loader
 * @param info plugin configuration, or null for default
 * @return configured supplier instance, or default instance if configuration was invalid
 */
@SuppressWarnings({"unchecked"})
public static MetricRegistry.MetricSupplier<Counter> counterSupplier(SolrResourceLoader loader, PluginInfo info) {
  if (info == null || info.className == null || info.className.trim().isEmpty()) {
    return new DefaultCounterSupplier();
  }

  MetricRegistry.MetricSupplier<Counter> supplier;
  try {
    supplier = loader.newInstance(info.className, MetricRegistry.MetricSupplier.class);
  } catch (Exception e) {
    log.warn("Error creating custom Counter supplier (will use default): {}", info, e);
    supplier = new DefaultCounterSupplier();
  }
  if (supplier instanceof PluginInfoInitialized) {
    ((PluginInfoInitialized)supplier).init(info);
  } else {
    SolrPluginUtils.invokeSetters(supplier, info.initArgs, true);
  }
  return supplier;
}
 

/**
 * Create a {@link Meter} supplier.
 * @param loader resource loader
 * @param info plugin configuration, or null for default
 * @return configured supplier instance, or default instance if configuration was invalid
 */
@SuppressWarnings({"unchecked"})
public static MetricRegistry.MetricSupplier<Meter> meterSupplier(SolrResourceLoader loader, PluginInfo info) {
  MetricRegistry.MetricSupplier<Meter> supplier;
  if (info == null || info.className == null || info.className.isEmpty()) {
    supplier = new DefaultMeterSupplier();
  } else {
    try {
      supplier = loader.newInstance(info.className, MetricRegistry.MetricSupplier.class);
    } catch (Exception e) {
      log.warn("Error creating custom Meter supplier (will use default): {}",info, e);
      supplier = new DefaultMeterSupplier();
    }
  }
  if (supplier instanceof PluginInfoInitialized) {
    ((PluginInfoInitialized)supplier).init(info);
  } else {
    SolrPluginUtils.invokeSetters(supplier, info.initArgs, true);
  }
  return supplier;
}
 

/**
 * Create a {@link Timer} supplier.
 * @param loader resource loader
 * @param info plugin configuration, or null for default
 * @return configured supplier instance, or default instance if configuration was invalid
 */
@SuppressWarnings({"unchecked"})
public static MetricRegistry.MetricSupplier<Timer> timerSupplier(SolrResourceLoader loader, PluginInfo info) {
  MetricRegistry.MetricSupplier<Timer> supplier;
  if (info == null || info.className == null || info.className.isEmpty()) {
    supplier = new DefaultTimerSupplier(loader);
  } else {
    try {
      supplier = loader.newInstance(info.className, MetricRegistry.MetricSupplier.class);
    } catch (Exception e) {
      log.warn("Error creating custom Timer supplier (will use default): {}", info, e);
      supplier = new DefaultTimerSupplier(loader);
    }
  }
  if (supplier instanceof PluginInfoInitialized) {
    ((PluginInfoInitialized)supplier).init(info);
  } else {
    SolrPluginUtils.invokeSetters(supplier, info.initArgs, true);
  }
  return supplier;
}
 

/**
 * Create a {@link Histogram} supplier.
 * @param info plugin configuration, or null for default
 * @return configured supplier instance, or default instance if configuration was invalid
 */
@SuppressWarnings({"unchecked"})
public static MetricRegistry.MetricSupplier<Histogram> histogramSupplier(SolrResourceLoader loader, PluginInfo info) {
  MetricRegistry.MetricSupplier<Histogram> supplier;
  if (info == null || info.className == null || info.className.isEmpty()) {
    supplier = new DefaultHistogramSupplier(loader);
  } else {
    try {
      supplier = loader.newInstance(info.className, MetricRegistry.MetricSupplier.class);
    } catch (Exception e) {
      log.warn("Error creating custom Histogram supplier (will use default): {}", info, e);
      supplier = new DefaultHistogramSupplier(loader);
    }
  }
  if (supplier instanceof PluginInfoInitialized) {
    ((PluginInfoInitialized)supplier).init(info);
  } else {
    SolrPluginUtils.invokeSetters(supplier, info.initArgs, true);
  }
  return supplier;
}
 

public void addFlushBatchSizeGauge(MetricRegistry.MetricSupplier<Gauge> supplier) {
  registry.gauge(RAFT_LOG_SYNC_BATCH_SIZE, supplier);
}
 

public MetricRegistry.MetricSupplier<Counter> getCounterSupplier() {
  return counterSupplier;
}
 

public MetricRegistry.MetricSupplier<Meter> getMeterSupplier() {
  return meterSupplier;
}
 

public MetricRegistry.MetricSupplier<Timer> getTimerSupplier() {
  return timerSupplier;
}
 

public MetricRegistry.MetricSupplier<Histogram> getHistogramSupplier() {
  return histogramSupplier;
}
 

public MetricRegistry.MetricSupplier<Timer> timers() {
  // only keep timer data for 1 minute
  return () -> new Timer(new SlidingTimeWindowArrayReservoir(1, TimeUnit.MINUTES));
}
 

public MetricRegistry.MetricSupplier<Meter> meters() {
  return Meter::new;
}
 

public MetricRegistry.MetricSupplier<Histogram> histograms() {
  // only keep timer data for 1 minute
  return () -> new Histogram(new SlidingTimeWindowArrayReservoir(1, TimeUnit.MINUTES));
}
 

Gauge gauge(String name, MetricRegistry.MetricSupplier<Gauge> supplier); 

Timer timer(String name, MetricRegistry.MetricSupplier<Timer> supplier); 

Counter counter(String name, MetricRegistry.MetricSupplier<Counter> supplier); 

Meter meter(String name, MetricRegistry.MetricSupplier<Meter> supplier);