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

Class StructuredDataLookup

java.lang.Object

org.apache.logging.log4j.core.lookup.StructuredDataLookup

All Implemented Interfaces:

StrLookup

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

Looks up keys from StructuredDataMessage log messages.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ID_KEY	Key to obtain the id of a structured message.
static final String	TYPE_KEY	Key to obtain the type of a structured message.

Fields inherited from interface org.apache.logging.log4j.core.lookup.StrLookup

CATEGORY

Constructor Summary

Constructors

Constructor	Description
StructuredDataLookup()

Method Summary

Modifier and Type	Method	Description
String	lookup(String key)	Returns null.
String	lookup(LogEvent event, String key)	Looks up the value for the key using the data in the LogEvent.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.logging.log4j.core.lookup.StrLookup

evaluate, evaluate

Field Details

ID_KEY

public static final String ID_KEY

Key to obtain the id of a structured message.

See Also:

• Constant Field Values

TYPE_KEY

public static final String TYPE_KEY

Key to obtain the type of a structured message.

See Also:

• Constant Field Values

Constructor Details

StructuredDataLookup

public StructuredDataLookup()

Method Details

lookup

public String lookup(String key)

Returns null. This Lookup plugin does not make sense outside the context of a LogEvent.

Specified by:

lookup in interface StrLookup

Parameters:

key - The key to be looked up, may be null.

Returns:

null

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.