Package io.prometheus.client.log4j2
Class InstrumentedAppender
java.lang.Object
org.apache.logging.log4j.core.AbstractLifeCycle
org.apache.logging.log4j.core.filter.AbstractFilterable
org.apache.logging.log4j.core.appender.AbstractAppender
io.prometheus.client.log4j2.InstrumentedAppender
- All Implemented Interfaces:
org.apache.logging.log4j.core.Appender
,org.apache.logging.log4j.core.filter.Filterable
,org.apache.logging.log4j.core.impl.LocationAware
,org.apache.logging.log4j.core.LifeCycle
,org.apache.logging.log4j.core.LifeCycle2
@Plugin(name="Prometheus",
category="Core",
elementType="appender")
public final class InstrumentedAppender
extends org.apache.logging.log4j.core.appender.AbstractAppender
Log4j2 log statements at various log levels
Example log4j2 configuration:
<?xml version="1.0" encoding="UTF-8"?> <Configuration packages="io.prometheus.client.log4j2"> <Appenders> <Prometheus name="PROMETHEUS"/> </Appenders> <Loggers> <Root level="trace"> <AppenderRef ref="PROMETHEUS"/> </Root> </Loggers> </Configuration>Example metrics being exported:
log4j_appender_total{level="trace",} 1.0 log4j_appender_total{level="debug",} 2.0 log4j_appender_total{level="info",} 3.0 log4j_appender_total{level="warn",} 4.0 log4j_appender_total{level="error",} 5.0 log4j_appender_total{level="fatal",} 6.0
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.logging.log4j.core.appender.AbstractAppender
org.apache.logging.log4j.core.appender.AbstractAppender.Builder<B extends org.apache.logging.log4j.core.appender.AbstractAppender.Builder<B>>
Nested classes/interfaces inherited from interface org.apache.logging.log4j.core.LifeCycle
org.apache.logging.log4j.core.LifeCycle.State
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate static final Counter
static final String
private static final Counter.Child
private static final Counter.Child
private static final Counter.Child
private static final Counter.Child
private static final Counter.Child
private static final Counter.Child
Fields inherited from class org.apache.logging.log4j.core.AbstractLifeCycle
DEFAULT_STOP_TIMEOUT, DEFAULT_STOP_TIMEUNIT, LOGGER
Fields inherited from interface org.apache.logging.log4j.core.Appender
ELEMENT_TYPE, EMPTY_ARRAY
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Constructor Summary
ConstructorsModifierConstructorDescriptionprotected
InstrumentedAppender
(String name) Create a new instrumented appender using the default registry. -
Method Summary
Modifier and TypeMethodDescriptionvoid
append
(org.apache.logging.log4j.core.LogEvent event) static InstrumentedAppender
createAppender
(String name) Methods inherited from class org.apache.logging.log4j.core.appender.AbstractAppender
error, error, error, getHandler, getLayout, getName, ignoreExceptions, parseInt, requiresLocation, setHandler, toSerializable, toString
Methods inherited from class org.apache.logging.log4j.core.filter.AbstractFilterable
addFilter, getFilter, getPropertyArray, hasFilter, isFiltered, removeFilter, start, stop, stop
Methods inherited from class org.apache.logging.log4j.core.AbstractLifeCycle
equalsImpl, getState, getStatusLogger, hashCodeImpl, initialize, isInitialized, isStarted, isStarting, isStopped, isStopping, setStarted, setStarting, setState, setStopped, setStopping, stop, stop
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.apache.logging.log4j.core.LifeCycle
getState, initialize, isStarted, isStopped, start, stop
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Field Details
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COUNTER_NAME
- See Also:
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COUNTER
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TRACE_LABEL
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DEBUG_LABEL
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INFO_LABEL
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WARN_LABEL
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ERROR_LABEL
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FATAL_LABEL
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Constructor Details
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InstrumentedAppender
Create a new instrumented appender using the default registry.
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Method Details
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append
public void append(org.apache.logging.log4j.core.LogEvent event) -
createAppender
@PluginFactory public static InstrumentedAppender createAppender(@PluginAttribute("name") String name)
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