Package org.apache.logging.log4j.core.lookup

Log4j 2 Lookups.

See: Description

Interface Summary

Interface	Description
StrLookup	Lookup a String key to a String value.

Class Summary

Class	Description
AbstractLookup	A default lookup for others to extend.
ConfigurationStrSubstitutor	RuntimeStrSubstitutor is a StrSubstitutor which only supports recursive evaluation of lookups.
ContextMapLookup	Looks up keys from ThreadContext objects..
DateLookup	Formats the current date or the date in the LogEvent.
EnvironmentLookup	Looks up keys from environment variables.
Interpolator	Proxies all the other StrLookups.
JavaLookup	Looks up keys related to Java: Java version, JRE version, VM version, and so on.
JmxRuntimeInputArgumentsLookup	Maps JVM input arguments (but not main arguments) using JMX to acquire JVM arguments.
JndiLookup	Looks up keys from JNDI resources.
MapLookup	A map-based lookup.
ResourceBundleLookup	Looks up keys from resource bundles.
RuntimeStrSubstitutor	RuntimeStrSubstitutor is a StrSubstitutor which only supports evaluation of top-level lookups.
StrMatcher	A matcher class that can be queried to determine if a character array portion matches.
StrSubstitutor	Substitutes variables within a string by values.
StructuredDataLookup	Looks up keys from StructuredDataMessage log messages.
SystemPropertiesLookup	Looks up keys from system properties.

Package org.apache.logging.log4j.core.lookup Description

Log4j 2 Lookups. These are used in variable interpolation in various configuration attributes. StrLookup plugins should use the plugin category Lookup.