org.apache.logging.log4j.core.lookup
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 org.apache.logging.log4j.core.lookup.StrLookup

CATEGORY

Constructor Summary

EnvironmentLookup()

Method Summary

String

lookup(LogEvent event, String key) Looks up the value of the environment variable.

Methods inherited from class org.apache.logging.log4j.core.lookup.AbstractLookup

lookup

Methods inherited from class java.lang.Object

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

Constructor Detail

EnvironmentLookup

public EnvironmentLookup()

Method Detail

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.