Class EnvironmentLookup

java.lang.Object

org.apache.logging.log4j.core.lookup.AbstractLookup

org.apache.logging.log4j.core.lookup.EnvironmentLookup

All Implemented Interfaces:

StrLookup

@Plugin(name="env",
        category="Lookup")
public class EnvironmentLookup
extends AbstractLookup

Looks up keys from environment variables.

Field Summary

Fields inherited from interface StrLookup

CATEGORY

Constructor Summary

Constructors

Constructor	Description
EnvironmentLookup()

Method Summary

Modifier and Type	Method	Description
String	lookup(LogEvent event, String key)	Looks up the value of the environment variable.

Methods inherited from class AbstractLookup

evaluate, lookup

Methods inherited from class Object

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

Methods inherited from interface StrLookup

evaluate

Constructor Details

EnvironmentLookup

public EnvironmentLookup()

Method Details

lookup

public String lookup(LogEvent event,
 String key)

Looks up the value of the environment variable.

Parameters:

event - The current LogEvent (is ignored by this StrLookup).

key - the key to be looked up, may be null

Returns:

The value of the environment variable.