Class ThreadContextStackResolver
java.lang.Object
org.apache.logging.log4j.layout.template.json.resolver.ThreadContextStackResolver
- All Implemented Interfaces:
EventResolver
,TemplateResolver<LogEvent>
Nested Diagnostic Context (NDC), aka. Thread Context Stack, resolver.
Configuration
config = [ pattern ] pattern = "pattern" -> string
Examples
Resolve all NDC values into a list:{ "$resolver": "ndc" }Resolve all NDC values matching with the pattern regex:
{ "$resolver": "ndc", "pattern": "user(Role|Rank):\\w+" }
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Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescription(package private) static String
getName()
boolean
isResolvable
(LogEvent logEvent) Indicates if the resolver if applicable for the givenvalue
.void
resolve
(LogEvent logEvent, JsonWriter jsonWriter) Resolves the givenvalue
using the providedJsonWriter
.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.layout.template.json.resolver.TemplateResolver
isFlattening, isResolvable, resolve
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Field Details
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itemPattern
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Constructor Details
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ThreadContextStackResolver
ThreadContextStackResolver(TemplateResolverConfig config)
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Method Details
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getName
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isResolvable
Description copied from interface:TemplateResolver
Indicates if the resolver if applicable for the givenvalue
.For instance, the stack trace resolver can be short-circuited using this check if the stack traces are disabled in the layout configuration.
- Specified by:
isResolvable
in interfaceTemplateResolver<LogEvent>
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resolve
Description copied from interface:TemplateResolver
Resolves the givenvalue
using the providedJsonWriter
.- Specified by:
resolve
in interfaceTemplateResolver<LogEvent>
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