Package io.prometheus.client.log4j2
Class InstrumentedAppender
- java.lang.Object
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- org.apache.logging.log4j.core.AbstractLifeCycle
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- org.apache.logging.log4j.core.filter.AbstractFilterable
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- org.apache.logging.log4j.core.appender.AbstractAppender
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- io.prometheus.client.log4j2.InstrumentedAppender
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- 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 levelsExample 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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Field Summary
Fields Modifier and Type Field Description private static Counter
COUNTER
static java.lang.String
COUNTER_NAME
private static Counter.Child
DEBUG_LABEL
private static Counter.Child
ERROR_LABEL
private static Counter.Child
FATAL_LABEL
private static Counter.Child
INFO_LABEL
private static Counter.Child
TRACE_LABEL
private static Counter.Child
WARN_LABEL
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Constructor Summary
Constructors Modifier Constructor Description protected
InstrumentedAppender(java.lang.String name)
Create a new instrumented appender using the default registry.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
append(org.apache.logging.log4j.core.LogEvent event)
static InstrumentedAppender
createAppender(java.lang.String name)
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Methods inherited from class org.apache.logging.log4j.core.appender.AbstractAppender
error, error, error, getHandler, getLayout, getName, ignoreExceptions, parseInt, requiresLocation, setHandler, toSerializable, toString
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Methods inherited from class org.apache.logging.log4j.core.filter.AbstractFilterable
addFilter, getFilter, getPropertyArray, hasFilter, isFiltered, removeFilter, start, stop, stop
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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
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Field Detail
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COUNTER_NAME
public static final java.lang.String COUNTER_NAME
- See Also:
- Constant Field Values
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COUNTER
private static final Counter COUNTER
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TRACE_LABEL
private static final Counter.Child TRACE_LABEL
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DEBUG_LABEL
private static final Counter.Child DEBUG_LABEL
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INFO_LABEL
private static final Counter.Child INFO_LABEL
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WARN_LABEL
private static final Counter.Child WARN_LABEL
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ERROR_LABEL
private static final Counter.Child ERROR_LABEL
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FATAL_LABEL
private static final Counter.Child FATAL_LABEL
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Method Detail
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append
public void append(org.apache.logging.log4j.core.LogEvent event)
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createAppender
@PluginFactory public static InstrumentedAppender createAppender(@PluginAttribute("name") java.lang.String name)
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