org.apache.logging.log4j.core.lookup
Class SystemPropertiesLookup

java.lang.Object
  extended by org.apache.logging.log4j.core.lookup.SystemPropertiesLookup
All Implemented Interfaces:
StrLookup

@Plugin(name="sys",
        category="Lookup")
public class SystemPropertiesLookup
extends Object
implements StrLookup

Looks up keys from system properties.


Constructor Summary
SystemPropertiesLookup()
           
 
Method Summary
 String lookup(LogEvent event, String key)
          Looks up the value for the key using the data in the LogEvent.
 String lookup(String key)
          Looks up the value for the key.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SystemPropertiesLookup

public SystemPropertiesLookup()
Method Detail

lookup

public String lookup(String key)
Looks up the value for the key.

Specified by:
lookup in interface StrLookup
Parameters:
key - the key to be looked up, may be null
Returns:
The value for the key.

lookup

public String lookup(LogEvent event,
                     String key)
Looks up the value for the key using the data in the LogEvent.

Specified by:
lookup in interface StrLookup
Parameters:
event - The current LogEvent.
key - the key to be looked up, may be null
Returns:
The value associated with the key.


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