com.netflix.servo.monitor
Class DynamicCounter

java.lang.Object
  com.netflix.servo.monitor.DynamicCounter

All Implemented Interfaces:

CompositeMonitor<java.lang.Long>, Monitor<java.lang.Long>

public final class DynamicCounter
extends java.lang.Object
implements CompositeMonitor<java.lang.Long>

Utility class that dynamically creates counters based on an arbitrary (name, tagList), or MonitorConfig. Counters are automatically expired after 15 minutes of inactivity.

Method Summary

MonitorConfig	getConfig() Configuration used to identify a monitor and provide metadata used in aggregations.
java.util.List<Monitor<?>>	getMonitors() Returns a list of sub-monitors for this composite.
java.lang.Long	getValue() Returns the current value for the monitor.
static void	increment(MonitorConfig config) Increment a counter based on a given MonitorConfig.
static void	increment(MonitorConfig config, long delta) Increment a counter based on a given MonitorConfig by a given delta.
static void	increment(java.lang.String name, java.lang.String... tags) Increment a counter specified by a name, and a sequence of (key, value) pairs.
static void	increment(java.lang.String name, TagList list) Increment the counter for a given name, tagList.
static void	increment(java.lang.String name, TagList list, long delta) Increment the counter for a given name, tagList by a given delta.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

increment

public static void increment(MonitorConfig config)

Increment a counter based on a given MonitorConfig.

increment

public static void increment(java.lang.String name,
                             java.lang.String... tags)

Increment a counter specified by a name, and a sequence of (key, value) pairs.

increment

public static void increment(MonitorConfig config,
                             long delta)

Increment a counter based on a given MonitorConfig by a given delta.

Parameters:

config - The monitoring config

delta - The amount added to the current value

increment

public static void increment(java.lang.String name,
                             TagList list)

Increment the counter for a given name, tagList.

increment

public static void increment(java.lang.String name,
                             TagList list,
                             long delta)

Increment the counter for a given name, tagList by a given delta.

getMonitors

public java.util.List<Monitor<?>> getMonitors()

Returns a list of sub-monitors for this composite.

Specified by:

getMonitors in interface CompositeMonitor<java.lang.Long>

getValue

public java.lang.Long getValue()

Returns the current value for the monitor.

Specified by:

getValue in interface Monitor<java.lang.Long>

getConfig

public MonitorConfig getConfig()

Configuration used to identify a monitor and provide metadata used in aggregations.

Specified by:

getConfig in interface Monitor<java.lang.Long>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object