org.apache.hadoop.chukwa.inputtools.log4j

Class Log4JMetricsContext

java.lang.Object

org.apache.hadoop.metrics.spi.AbstractMetricsContext

org.apache.hadoop.chukwa.inputtools.log4j.Log4JMetricsContext

All Implemented Interfaces:

org.apache.hadoop.metrics.MetricsContext

public class Log4JMetricsContext
extends AbstractMetricsContext

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	ADD_UUID_PROPERTY
protected boolean	needUUID
protected static String	OUTPUT_DIR_PROPERTY
protected String	outputDir
protected int	period
protected static String	PERIOD_PROPERTY
protected static String	user

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

DEFAULT_PERIOD

Constructor Summary

Constructors

Constructor and Description
Log4JMetricsContext() Creates a new instance of FileContext

Method Summary

Methods

Modifier and Type	Method and Description
protected void	emitRecord(String contextName, String recordName, org.apache.hadoop.metrics.spi.OutputRecord outRec) Sends a record to the metrics system.
void	init(String contextName, org.apache.hadoop.metrics.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

Field Detail

OUTPUT_DIR_PROPERTY

protected static final String OUTPUT_DIR_PROPERTY

See Also:

Constant Field Values

PERIOD_PROPERTY

protected static final String PERIOD_PROPERTY

See Also:

Constant Field Values

ADD_UUID_PROPERTY

protected static final String ADD_UUID_PROPERTY

See Also:

Constant Field Values

user

protected static final String user

outputDir

protected String outputDir

period

protected int period

needUUID

protected boolean needUUID

Constructor Detail

Log4JMetricsContext

public Log4JMetricsContext()

Creates a new instance of FileContext

Method Detail

init

public void init(String contextName,
        org.apache.hadoop.metrics.ContextFactory factory)

Description copied from class: AbstractMetricsContext

Initializes the context.

Specified by:

init in interface org.apache.hadoop.metrics.MetricsContext

Overrides:

init in class AbstractMetricsContext

emitRecord

protected void emitRecord(String contextName,
              String recordName,
              org.apache.hadoop.metrics.spi.OutputRecord outRec)
                   throws IOException

Description copied from class: AbstractMetricsContext

Sends a record to the metrics system.

Specified by:

emitRecord in class AbstractMetricsContext

Throws:

IOException