ggrandes / log4j2-jvmext

JVM extension Lookup for Log4J 2.x

JvmextLookup for Log4J 2.x

Custom "JVM" Lookup (jvmext) for Log4j2. Open Source Java project under Apache License v2.0

Current Stable Version is 1.0.1

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DOC

Jvmext Lookup

The JvmextLookup allows JVM environment information to be retrieved in convenient preformatted strings using the jvmext: prefix.

Key	Description
node	Hostname of the machine we are running on or "UNKNOWN_LOCALHOST" in case where the host name cannot be resolved.
pid	The PID (process id) of the running Java virtual machine or 0 if unknown.
startTime	Returns the approximate time in milliseconds when the Java virtual machine started.

Usage Examples

# log4j2.properties 
status = warn
name = PropertiesConfig

# Console
appender.console.type = Console
appender.console.name = console
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = %d{ISO8601} [${jvmext:node}:${jvmext:pid}] [%t] %p %c (DC:%MDC:%NDC) %m%n

rootLogger.level = info
rootLogger.appenderRef.console.ref = console

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MAVEN

Add the dependency to your pom.xml:

<dependency>
    <groupId>org.javastack</groupId>
    <artifactId>log4j2-jvmext</artifactId>
    <version>1.0.1</version>
</dependency>

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Inspired in log4j2-lookups, this code is Java-minimalistic version.