com.netflix.servo.monitor

Class ContextualCounter

java.lang.Object

com.netflix.servo.monitor.AbstractContextualMonitor<java.lang.Number,Counter>

com.netflix.servo.monitor.ContextualCounter

All Implemented Interfaces:

CompositeMonitor<java.lang.Number>, Counter, Monitor<java.lang.Number>, NumericMonitor<java.lang.Number>

public class ContextualCounter
extends AbstractContextualMonitor<java.lang.Number,Counter>
implements Counter

Composite that maintains separate simple counters for each distinct set of tags returned by the tagging context.

Field Summary

Fields inherited from class com.netflix.servo.monitor.AbstractContextualMonitor

baseConfig, context, monitors, newMonitor

Constructor Summary

Constructors

Constructor and Description
ContextualCounter(MonitorConfig config, TaggingContext context, com.google.common.base.Function<MonitorConfig,Counter> newMonitor) Create a new instance of the counter.

Method Summary

Modifier and Type	Method and Description
java.lang.Number	getValue(int pollerIndex) Returns the current value for the monitor for the nth poller.
void	increment() Update the count by one.
void	increment(long amount) Update the count by the specified amount.

Methods inherited from class com.netflix.servo.monitor.AbstractContextualMonitor

getConfig, getMonitorForCurrentContext, getMonitors, getValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.netflix.servo.monitor.Monitor

getConfig, getValue

Constructor Detail

ContextualCounter

public ContextualCounter(MonitorConfig config,
                         TaggingContext context,
                         com.google.common.base.Function<MonitorConfig,Counter> newMonitor)

Create a new instance of the counter.

Parameters:

config - shared configuration

context - provider for context specific tags

newMonitor - function to create new counters

Method Detail

increment

public void increment()

Update the count by one.

Specified by:

increment in interface Counter

increment

public void increment(long amount)

Update the count by the specified amount.

Specified by:

increment in interface Counter

getValue

public java.lang.Number getValue(int pollerIndex)

Returns the current value for the monitor for the nth poller.

Specified by:

getValue in interface Monitor<java.lang.Number>