Package org.apache.hadoop.metrics2.filter

Class AbstractPatternFilter

java.lang.Object

org.apache.hadoop.metrics2.MetricsFilter

org.apache.hadoop.metrics2.filter.AbstractPatternFilter

All Implemented Interfaces:

MetricsPlugin

Direct Known Subclasses:

GlobFilter, RegexFilter

@Private
public abstract class AbstractPatternFilter
extends MetricsFilter

Base class for pattern based filters

Field Summary

Fields

Modifier and Type	Field	Description
protected static final String	EXCLUDE_KEY
protected static final String	EXCLUDE_TAGS_KEY
protected static final String	INCLUDE_KEY
protected static final String	INCLUDE_TAGS_KEY

Method Summary

Modifier and Type	Method	Description
boolean	accepts(Iterable<MetricsTag> tags)	Whether to accept the tags
boolean	accepts(String name)	Whether to accept the name
boolean	accepts(MetricsTag tag)	Whether to accept the tag
protected abstract com.google.re2j.Pattern	compile(String s)	Compile a string pattern in to a pattern object
void	init(org.apache.commons.configuration2.SubsetConfiguration conf)	Initialize the plugin

Methods inherited from class org.apache.hadoop.metrics2.MetricsFilter

accepts

Methods inherited from class java.lang.Object

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

Field Details

INCLUDE_KEY

protected static final String INCLUDE_KEY

See Also:

• Constant Field Values

EXCLUDE_KEY

protected static final String EXCLUDE_KEY

See Also:

• Constant Field Values

INCLUDE_TAGS_KEY

protected static final String INCLUDE_TAGS_KEY

See Also:

• Constant Field Values

EXCLUDE_TAGS_KEY

protected static final String EXCLUDE_TAGS_KEY

See Also:

• Constant Field Values

Method Details

init

public void init(org.apache.commons.configuration2.SubsetConfiguration conf)

Description copied from interface: MetricsPlugin

Initialize the plugin

Parameters:

conf - the configuration object for the plugin

accepts

public boolean accepts(MetricsTag tag)

Description copied from class: MetricsFilter

Whether to accept the tag

Specified by:

accepts in class MetricsFilter

Parameters:

tag - to filter on

Returns:

true to accept; false otherwise

accepts

public boolean accepts(Iterable<MetricsTag> tags)

Description copied from class: MetricsFilter

Whether to accept the tags

Specified by:

accepts in class MetricsFilter

Parameters:

tags - to filter on

Returns:

true to accept; false otherwise

accepts

public boolean accepts(String name)

Description copied from class: MetricsFilter

Whether to accept the name

Specified by:

accepts in class MetricsFilter

Parameters:

name - to filter on

Returns:

true to accept; false otherwise.

compile

protected abstract com.google.re2j.Pattern compile(String s)

Compile a string pattern in to a pattern object

Parameters:

s - the string pattern to compile

Returns:

the compiled pattern object