org.apache.hadoop.metrics.ganglia
Class GangliaContext

java.lang.Object
  org.apache.hadoop.metrics.spi.AbstractMetricsContext
      org.apache.hadoop.metrics.ganglia.GangliaContext

All Implemented Interfaces:

MetricsContext

public class GangliaContext
extends AbstractMetricsContext

Context for sending metrics to Ganglia.

Field Summary

Fields inherited from interface org.apache.hadoop.metrics.MetricsContext

DEFAULT_PERIOD

Constructor Summary

GangliaContext()
Creates a new instance of GangliaContext

Method Summary

void	emitRecord(java.lang.String contextName, java.lang.String recordName, OutputRecord outRec) Sends a record to the metrics system.
void	init(java.lang.String contextName, ContextFactory factory) Initializes the context.

Methods inherited from class org.apache.hadoop.metrics.spi.AbstractMetricsContext

close, createRecord, flush, getAttribute, getAttributeTable, getContextFactory, getContextName, getPeriod, isMonitoring, newRecord, registerUpdater, remove, setPeriod, startMonitoring, stopMonitoring, unregisterUpdater, update

Methods inherited from class java.lang.Object

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

Constructor Detail

GangliaContext

public GangliaContext()

Creates a new instance of GangliaContext

Method Detail

init

public void init(java.lang.String contextName,
                 ContextFactory factory)

Description copied from class: AbstractMetricsContext

Initializes the context.

Specified by:

init in interface MetricsContext

Overrides:

init in class AbstractMetricsContext

Parameters:

contextName - The given name for this context

factory - The creator of this context

emitRecord

public void emitRecord(java.lang.String contextName,
                       java.lang.String recordName,
                       OutputRecord outRec)
                throws java.io.IOException

Description copied from class: AbstractMetricsContext

Sends a record to the metrics system.

Specified by:

emitRecord in class AbstractMetricsContext

Throws:

java.io.IOException