Class Metrics

java.lang.Object

com.erudika.para.core.metrics.Metrics

public final class Metrics
extends Object

Helper methods for working with performance metrics.

Author:

Alex Bogdanovski [alex@erudika.com]

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Metrics.Context	An auto-closeable class that manages timers for both the overall system as well as specific application.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	SYSTEM_METRICS_NAME	The name of the default system @{link MetricRegistry}.

Method Summary

Modifier and Type	Method	Description
static com.codahale.metrics.Counter	counter(String appid, Class<?> clazz, String... names)	Creates a new counter for a particular class and method for a specific application.
static String	getClassName(Class<?> clazz)
static Metrics.Context	time(String appid, Class<?> clazz, String... names)	Instantiate timing of a particular class and method for a specific application.

Methods inherited from class java.lang.Object

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

Field Details

SYSTEM_METRICS_NAME

public static final String SYSTEM_METRICS_NAME

The name of the default system @{link MetricRegistry}.

See Also:

• Constant Field Values

Method Details

time

public static Metrics.Context time(String appid,
 Class<?> clazz,
 String... names)

Instantiate timing of a particular class and method for a specific application.

Parameters:

appid - the application that invoked the request

clazz - the Class to be timed

names - one or more unique names to identify the timer - usually a method name

Returns:

a closeable context that encapsulates the timed method

counter

public static com.codahale.metrics.Counter counter(String appid,
 Class<?> clazz,
 String... names)

Creates a new counter for a particular class and method for a specific application.

Parameters:

appid - the application that invoked the request

clazz - the Class to be counted

names - one or more unique names to identify the counter - usually a method name

Returns:

a counter

getClassName

public static String getClassName(Class<?> clazz)