Class SystemPropertiesLookup

java.lang.Object
org.apache.logging.log4j.core.lookup.AbstractLookup
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.

  • Constructor Details

    • SystemPropertiesLookup

      public SystemPropertiesLookup()

  • Method Details

    • 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.