org.jmxtrans.agent

Class ResultNameStrategyImpl

java.lang.Object

org.jmxtrans.agent.ResultNameStrategyImpl

All Implemented Interfaces:

ResultNameStrategy

public class ResultNameStrategyImpl
extends Object
implements ResultNameStrategy

Build a QueryResult.name from a collected metric (Query).

Build name must be escaped to be compatible with all OutputWriter. The approach is to escape non alpha-numeric chars.

Expressions support '#' based keywords (e.g. #hostname#) and with '%' based variables mapped to objectname properties.

Supported '#' based 'functions':

Function	Description	Sample
#hostname#	localhost - hostname InetAddress.getHostName()
#reversed_hostname#	reversed localhost - hostname InetAddress.getHostName()
#escaped_hostname#	localhost - hostname InetAddress.getHostName() with '.' replaced by '_'
#canonical_hostname#	localhost - canonical hostname InetAddress.getCanonicalHostName()	server1.ecommerce.mycompany.com
#reversed_canonical_hostname#	reversed localhost - canonical hostname InetAddress.getCanonicalHostName()	com.mycompany.ecommerce.server1
#escaped_canonical_hostname#	localhost - canonical hostname InetAddress.getCanonicalHostName() with '.' replaced by '_'	server1_ecommerce_mycompany_com
#hostaddress#	localhost - hostaddress InetAddress.getHostAddress()
#escaped_hostname#	localhost - hostaddress InetAddress.getHostAddress() with '.' replaced by '_'

Author:

Cyrille Le Clerc

Field Summary

Fields

Modifier and Type	Field and Description
protected Logger	logger

Constructor Summary

Constructors

Constructor and Description
ResultNameStrategyImpl()

Method Summary

Methods

Modifier and Type	Method and Description
protected String	escapeObjectName(ObjectName objectName) Transforms an ObjectName into a plain String only composed of (a->Z, A-Z, '_').
ExpressionLanguageEngine	getExpressionLanguageEngine()
String	getResultName(Query query, ObjectName objectName)
String	getResultName(Query query, ObjectName objectName, String key)
void	postConstruct(Map<String,String> settings)
void	setExpressionLanguageEngine(ExpressionLanguageEngine expressionLanguageEngine)

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final Logger logger

Constructor Detail

ResultNameStrategyImpl

public ResultNameStrategyImpl()

Method Detail

getResultName

@Nonnull
public String getResultName(@Nonnull
                           Query query,
                           @Nonnull
                           ObjectName objectName)

Specified by:

getResultName in interface ResultNameStrategy

getResultName

@Nonnull
public String getResultName(@Nonnull
                           Query query,
                           @Nonnull
                           ObjectName objectName,
                           @Nullable
                           String key)

Specified by:

getResultName in interface ResultNameStrategy

escapeObjectName

protected String escapeObjectName(@Nonnull
                      ObjectName objectName)

Transforms an ObjectName into a plain String only composed of (a->Z, A-Z, '_').

'_' is the escape char for not compliant chars.

getExpressionLanguageEngine

public ExpressionLanguageEngine getExpressionLanguageEngine()

setExpressionLanguageEngine

public void setExpressionLanguageEngine(ExpressionLanguageEngine expressionLanguageEngine)

postConstruct

public void postConstruct(@Nonnull
                 Map<String,String> settings)

Specified by:

postConstruct in interface ResultNameStrategy