InstrumentedAppender

java.lang.Object
- org.apache.log4j.AppenderSkeleton
- - com.codahale.metrics.log4j.InstrumentedAppender

All Implemented Interfaces:

org.apache.log4j.Appender, org.apache.log4j.spi.OptionHandler
```
public class InstrumentedAppender
extends org.apache.log4j.AppenderSkeleton
```
A Log4J Appender which has seven meters, one for each logging level and one for the total number of statements being logged. The meter names are the logging level names appended to the name of the appender.

Field Summary

Fields
Modifier and Type	Field	Description
`private Meter`	`all`
`private Meter`	`debug`
`private Meter`	`error`
`private Meter`	`fatal`
`private Meter`	`info`
`private MetricRegistry`	`registry`
`private Meter`	`trace`
`private Meter`	`warn`

Fields inherited from class org.apache.log4j.AppenderSkeleton
closed, errorHandler, headFilter, layout, name, tailFilter, threshold

Constructor Summary

Constructors
Constructor	Description
`InstrumentedAppender(MetricRegistry registry)`	Create a new instrumented appender using the given registry.
`InstrumentedAppender(java.lang.String registryName)`	Create a new instrumented appender using the given registry name.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`activateOptions()`
`protected void`	`append(org.apache.log4j.spi.LoggingEvent event)`
`void`	`close()`
`boolean`	`requiresLayout()`

Methods inherited from class org.apache.log4j.AppenderSkeleton
addFilter, clearFilters, doAppend, finalize, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setName, setThreshold

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - registry
```
private final MetricRegistry registry
```
  - all
```
private Meter all
```
  - trace
```
private Meter trace
```
  - debug
```
private Meter debug
```
  - info
```
private Meter info
```
  - warn
```
private Meter warn
```
  - error
```
private Meter error
```
  - fatal
```
private Meter fatal
```
- Constructor Detail
  - InstrumentedAppender
```
public InstrumentedAppender(java.lang.String registryName)
```
    Create a new instrumented appender using the given registry name.
    
    Parameters:
    
    registryName - the name of the registry in SharedMetricRegistries
  - InstrumentedAppender
```
public InstrumentedAppender(MetricRegistry registry)
```
    Create a new instrumented appender using the given registry.
    
    Parameters:
    
    registry - the metric registry
- Method Detail
  - activateOptions
```
public void activateOptions()
```
    Specified by:
    
    activateOptions in interface org.apache.log4j.spi.OptionHandler
    
    Overrides:
    
    activateOptions in class org.apache.log4j.AppenderSkeleton
  - append
```
protected void append(org.apache.log4j.spi.LoggingEvent event)
```
    Specified by:
    
    append in class org.apache.log4j.AppenderSkeleton
  - close
```
public void close()
```
  - requiresLayout
```
public boolean requiresLayout()
```