Class SystemPropertiesLookup
- java.lang.Object
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- org.apache.logging.log4j.core.lookup.AbstractLookup
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- org.apache.logging.log4j.core.lookup.SystemPropertiesLookup
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- All Implemented Interfaces:
StrLookup
@Plugin(name="sys", category="Lookup") public class SystemPropertiesLookup extends AbstractLookup
Looks up keys from system properties.
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Constructor Summary
Constructors Constructor Description SystemPropertiesLookup()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
lookup(LogEvent event, java.lang.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
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Method Detail
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lookup
public java.lang.String lookup(LogEvent event, java.lang.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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