Adding the APIMetrics
This is a copy of the Metrics class from yammer, with two differences: Add a url Metrics that needs it to retrieve data and uses the APIMetricsRegistry as the Metric factory. Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
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Amnon Heiman
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397
src/main/java/com/cloudius/urchin/metrics/APIMetrics.java
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397
src/main/java/com/cloudius/urchin/metrics/APIMetrics.java
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package com.cloudius.urchin.metrics;
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/*
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* Copyright 2015 Cloudius Systems
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*
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* Modified by Cloudius Systems
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*/
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import java.util.concurrent.TimeUnit;
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import com.yammer.metrics.core.APIMetricsRegistry;
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import com.yammer.metrics.core.Counter;
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import com.yammer.metrics.core.Gauge;
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import com.yammer.metrics.core.Histogram;
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import com.yammer.metrics.core.Meter;
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import com.yammer.metrics.core.MetricName;
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import com.yammer.metrics.core.Timer;
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import com.yammer.metrics.reporting.JmxReporter;
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public class APIMetrics {
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private static final APIMetricsRegistry DEFAULT_REGISTRY = new APIMetricsRegistry();
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private static final Thread SHUTDOWN_HOOK = new Thread() {
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public void run() {
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JmxReporter.shutdownDefault();
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}
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};
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static {
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JmxReporter.startDefault(DEFAULT_REGISTRY);
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Runtime.getRuntime().addShutdownHook(SHUTDOWN_HOOK);
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}
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private APIMetrics() { /* unused */
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}
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/**
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* Given a new {@link com.yammer.metrics.core.Gauge}, registers it under the
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* given class and name.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param metric
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* the metric
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* @param <T>
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* the type of the value returned by the metric
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* @return {@code metric}
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*/
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public static <T> Gauge<T> newGauge(Class<?> klass, String name,
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Gauge<T> metric) {
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return DEFAULT_REGISTRY.newGauge(klass, name, metric);
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}
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/**
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* Given a new {@link com.yammer.metrics.core.Gauge}, registers it under the
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* given class and name.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param scope
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* the scope of the metric
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* @param metric
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* the metric
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* @param <T>
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* the type of the value returned by the metric
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* @return {@code metric}
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*/
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public static <T> Gauge<T> newGauge(Class<?> klass, String name,
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String scope, Gauge<T> metric) {
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return DEFAULT_REGISTRY.newGauge(klass, name, scope, metric);
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}
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/**
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* Given a new {@link com.yammer.metrics.core.Gauge}, registers it under the
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* given metric name.
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*
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* @param metricName
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* the name of the metric
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* @param metric
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* the metric
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* @param <T>
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* the type of the value returned by the metric
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* @return {@code metric}
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*/
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public static <T> Gauge<T> newGauge(MetricName metricName, Gauge<T> metric) {
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return DEFAULT_REGISTRY.newGauge(metricName, metric);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Counter} and registers it
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* under the given class and name.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @return a new {@link com.yammer.metrics.core.Counter}
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*/
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public static Counter newCounter(String url, Class<?> klass, String name) {
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return DEFAULT_REGISTRY.newCounter(url, klass, name);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Counter} and registers it
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* under the given class and name.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param scope
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* the scope of the metric
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* @return a new {@link com.yammer.metrics.core.Counter}
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*/
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public static Counter newCounter(String url, Class<?> klass, String name,
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String scope) {
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return DEFAULT_REGISTRY.newCounter(url, klass, name, scope);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Counter} and registers it
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* under the given metric name.
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*
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* @param metricName
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* the name of the metric
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* @return a new {@link com.yammer.metrics.core.Counter}
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*/
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public static Counter newCounter(String url, MetricName metricName) {
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return DEFAULT_REGISTRY.newCounter(url, metricName);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Histogram} and registers it
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* under the given class and name.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param biased
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* whether or not the histogram should be biased
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* @return a new {@link com.yammer.metrics.core.Histogram}
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*/
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public static Histogram newHistogram(Class<?> klass, String name,
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boolean biased) {
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return DEFAULT_REGISTRY.newHistogram(klass, name, biased);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Histogram} and registers it
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* under the given class, name, and scope.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param scope
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* the scope of the metric
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* @param biased
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* whether or not the histogram should be biased
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* @return a new {@link com.yammer.metrics.core.Histogram}
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*/
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public static Histogram newHistogram(Class<?> klass, String name,
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String scope, boolean biased) {
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return DEFAULT_REGISTRY.newHistogram(klass, name, scope, biased);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Histogram} and registers it
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* under the given metric name.
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*
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* @param metricName
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* the name of the metric
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* @param biased
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* whether or not the histogram should be biased
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* @return a new {@link com.yammer.metrics.core.Histogram}
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*/
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public static Histogram newHistogram(MetricName metricName, boolean biased) {
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return DEFAULT_REGISTRY.newHistogram(metricName, biased);
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}
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/**
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* Creates a new non-biased {@link com.yammer.metrics.core.Histogram} and
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* registers it under the given class and name.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @return a new {@link com.yammer.metrics.core.Histogram}
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*/
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public static Histogram newHistogram(Class<?> klass, String name) {
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return DEFAULT_REGISTRY.newHistogram(klass, name);
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}
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/**
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* Creates a new non-biased {@link com.yammer.metrics.core.Histogram} and
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* registers it under the given class, name, and scope.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param scope
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* the scope of the metric
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* @return a new {@link com.yammer.metrics.core.Histogram}
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*/
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public static Histogram newHistogram(Class<?> klass, String name,
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String scope) {
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return DEFAULT_REGISTRY.newHistogram(klass, name, scope);
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}
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/**
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* Creates a new non-biased {@link com.yammer.metrics.core.Histogram} and
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* registers it under the given metric name.
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*
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* @param metricName
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* the name of the metric
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* @return a new {@link com.yammer.metrics.core.Histogram}
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*/
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public static Histogram newHistogram(MetricName metricName) {
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return newHistogram(metricName, false);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Meter} and registers it
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* under the given class and name.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param eventType
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* the plural name of the type of events the meter is measuring
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* (e.g., {@code "requests"})
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* @param unit
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* the rate unit of the new meter
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* @return a new {@link com.yammer.metrics.core.Meter}
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*/
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public static Meter newMeter(String url, Class<?> klass, String name,
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String eventType, TimeUnit unit) {
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return DEFAULT_REGISTRY.newMeter(url, klass, name, eventType, unit);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Meter} and registers it
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* under the given class, name, and scope.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param scope
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* the scope of the metric
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* @param eventType
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* the plural name of the type of events the meter is measuring
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* (e.g., {@code "requests"})
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* @param unit
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* the rate unit of the new meter
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* @return a new {@link com.yammer.metrics.core.Meter}
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*/
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public static Meter newMeter(String url, Class<?> klass, String name,
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String scope, String eventType, TimeUnit unit) {
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return DEFAULT_REGISTRY.newMeter(url, klass, name, scope, eventType,
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unit);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Meter} and registers it
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* under the given metric name.
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*
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* @param metricName
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* the name of the metric
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* @param eventType
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* the plural name of the type of events the meter is measuring
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* (e.g., {@code "requests"})
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* @param unit
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* the rate unit of the new meter
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* @return a new {@link com.yammer.metrics.core.Meter}
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*/
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public static Meter newMeter(String url, MetricName metricName,
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String eventType, TimeUnit unit) {
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return DEFAULT_REGISTRY.newMeter(url, metricName, eventType, unit);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Timer} and registers it
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* under the given class and name.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param durationUnit
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* the duration scale unit of the new timer
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* @param rateUnit
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* the rate scale unit of the new timer
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* @return a new {@link com.yammer.metrics.core.Timer}
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*/
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public static Timer newTimer(Class<?> klass, String name,
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TimeUnit durationUnit, TimeUnit rateUnit) {
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return DEFAULT_REGISTRY.newTimer(klass, name, durationUnit, rateUnit);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Timer} and registers it
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* under the given class and name, measuring elapsed time in milliseconds
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* and invocations per second.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @return a new {@link com.yammer.metrics.core.Timer}
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*/
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public static Timer newTimer(Class<?> klass, String name) {
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return DEFAULT_REGISTRY.newTimer(klass, name);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Timer} and registers it
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* under the given class, name, and scope.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param scope
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* the scope of the metric
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* @param durationUnit
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* the duration scale unit of the new timer
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* @param rateUnit
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* the rate scale unit of the new timer
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* @return a new {@link com.yammer.metrics.core.Timer}
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*/
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public static Timer newTimer(Class<?> klass, String name, String scope,
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TimeUnit durationUnit, TimeUnit rateUnit) {
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return DEFAULT_REGISTRY.newTimer(klass, name, scope, durationUnit,
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rateUnit);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Timer} and registers it
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* under the given class, name, and scope, measuring elapsed time in
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* milliseconds and invocations per second.
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*
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* @param klass
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* the class which owns the metric
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* @param name
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* the name of the metric
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* @param scope
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* the scope of the metric
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* @return a new {@link com.yammer.metrics.core.Timer}
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*/
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public static Timer newTimer(Class<?> klass, String name, String scope) {
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return DEFAULT_REGISTRY.newTimer(klass, name, scope);
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}
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/**
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* Creates a new {@link com.yammer.metrics.core.Timer} and registers it
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* under the given metric name.
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*
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* @param metricName
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* the name of the metric
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* @param durationUnit
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* the duration scale unit of the new timer
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* @param rateUnit
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* the rate scale unit of the new timer
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* @return a new {@link com.yammer.metrics.core.Timer}
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*/
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public static Timer newTimer(MetricName metricName, TimeUnit durationUnit,
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TimeUnit rateUnit) {
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return DEFAULT_REGISTRY.newTimer(metricName, durationUnit, rateUnit);
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}
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/**
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* Returns the (static) default registry.
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*
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* @return the metrics registry
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*/
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public static APIMetricsRegistry defaultRegistry() {
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return DEFAULT_REGISTRY;
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}
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/**
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* Shuts down all thread pools for the default registry.
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*/
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public static void shutdown() {
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DEFAULT_REGISTRY.shutdown();
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JmxReporter.shutdownDefault();
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Runtime.getRuntime().removeShutdownHook(SHUTDOWN_HOOK);
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}
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}
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