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

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

@Plugin(name="sys",
        category="Lookup")
public class SystemPropertiesLookup
extends AbstractLookup

Looks up keys from system properties.


Field Summary
 
Fields inherited from interface org.apache.logging.log4j.core.lookup.StrLookup
CATEGORY
 
Constructor Summary
SystemPropertiesLookup()
           
 
Method Summary
 String lookup(LogEvent event, String key)
          Looks up the value for the key using the data in the LogEvent.
 
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

SystemPropertiesLookup

public SystemPropertiesLookup()
Method Detail

lookup

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

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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