org.apache.logging.log4j.core.filter
Class BurstFilter

java.lang.Object
  extended by org.apache.logging.log4j.core.AbstractLifeCycle
      extended by org.apache.logging.log4j.core.filter.AbstractFilter
          extended by org.apache.logging.log4j.core.filter.BurstFilter
All Implemented Interfaces:
Serializable, Filter, LifeCycle

@Plugin(name="BurstFilter",
        category="Core",
        elementType="filter",
        printObject=true)
public final class BurstFilter
extends AbstractFilter

The BurstFilter is a logging filter that regulates logging traffic.

Use this filter when you want to control the maximum burst of log statements that can be sent to an appender. The filter is configured in the log4j configuration file. For example, the following configuration limits the number of INFO level (as well as DEBUG and TRACE) log statements that can be sent to the console to a burst of 100 with an average rate of 16 per second. WARN, ERROR and FATAL messages would continue to be delivered.

<Console name="console">
 <PatternLayout pattern="%-5p %d{dd-MMM-yyyy HH:mm:ss} %x %t %m%n"/>
 <filters>
  <Burst level="INFO" rate="16" maxBurst="100"/>
 </filters>
</Console>

See Also:
Serialized Form

Nested Class Summary
static class BurstFilter.Builder
           
 
Nested classes/interfaces inherited from interface org.apache.logging.log4j.core.Filter
Filter.Result
 
Nested classes/interfaces inherited from interface org.apache.logging.log4j.core.LifeCycle
LifeCycle.State
 
Field Summary
 
Fields inherited from class org.apache.logging.log4j.core.filter.AbstractFilter
onMatch, onMismatch
 
Fields inherited from class org.apache.logging.log4j.core.AbstractLifeCycle
LOGGER
 
Fields inherited from interface org.apache.logging.log4j.core.Filter
ELEMENT_TYPE
 
Method Summary
 void clear()
          Clear the history.
 Filter.Result filter(LogEvent event)
          Context Filter method.
 Filter.Result filter(Logger logger, org.apache.logging.log4j.Level level, org.apache.logging.log4j.Marker marker, org.apache.logging.log4j.message.Message msg, Throwable t)
          Appender Filter method.
 Filter.Result filter(Logger logger, org.apache.logging.log4j.Level level, org.apache.logging.log4j.Marker marker, Object msg, Throwable t)
          Appender Filter method.
 Filter.Result filter(Logger logger, org.apache.logging.log4j.Level level, org.apache.logging.log4j.Marker marker, String msg, Object... params)
          Appender Filter method.
 int getAvailable()
          Returns the number of available slots.
static BurstFilter.Builder newBuilder()
           
 String toString()
           
 
Methods inherited from class org.apache.logging.log4j.core.filter.AbstractFilter
equals, getOnMatch, getOnMismatch, hashCode
 
Methods inherited from class org.apache.logging.log4j.core.AbstractLifeCycle
getState, isInitialized, isStarted, isStarting, isStopped, isStopping, setStarted, setStarting, setState, setStopped, setStopping, start, stop
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.apache.logging.log4j.core.LifeCycle
isStarted, isStopped, start, stop
 

Method Detail

filter

public Filter.Result filter(Logger logger,
                            org.apache.logging.log4j.Level level,
                            org.apache.logging.log4j.Marker marker,
                            String msg,
                            Object... params)
Description copied from class: AbstractFilter
Appender Filter method. The default returns NEUTRAL.

Specified by:
filter in interface Filter
Overrides:
filter in class AbstractFilter
Parameters:
logger - the Logger.
level - The logging Level.
marker - The Marker, if any.
msg - The message, if present.
params - An array of parameters or null.
Returns:
The Result of filtering.

filter

public Filter.Result filter(Logger logger,
                            org.apache.logging.log4j.Level level,
                            org.apache.logging.log4j.Marker marker,
                            Object msg,
                            Throwable t)
Description copied from class: AbstractFilter
Appender Filter method. The default returns NEUTRAL.

Specified by:
filter in interface Filter
Overrides:
filter in class AbstractFilter
Parameters:
logger - the Logger.
level - The logging Level.
marker - The Marker, if any.
msg - The message, if present.
t - A throwable or null.
Returns:
The Result of filtering.

filter

public Filter.Result filter(Logger logger,
                            org.apache.logging.log4j.Level level,
                            org.apache.logging.log4j.Marker marker,
                            org.apache.logging.log4j.message.Message msg,
                            Throwable t)
Description copied from class: AbstractFilter
Appender Filter method. The default returns NEUTRAL.

Specified by:
filter in interface Filter
Overrides:
filter in class AbstractFilter
Parameters:
logger - the Logger.
level - The logging Level.
marker - The Marker, if any.
msg - The message, if present.
t - A throwable or null.
Returns:
The Result of filtering.

filter

public Filter.Result filter(LogEvent event)
Description copied from class: AbstractFilter
Context Filter method. The default returns NEUTRAL.

Specified by:
filter in interface Filter
Overrides:
filter in class AbstractFilter
Parameters:
event - The LogEvent.
Returns:
The Result of filtering.

getAvailable

public int getAvailable()
Returns the number of available slots. Used for unit testing.

Returns:
The number of available slots.

clear

public void clear()
Clear the history. Used for unit testing.


toString

public String toString()
Overrides:
toString in class AbstractFilter

newBuilder

@PluginBuilderFactory
public static BurstFilter.Builder newBuilder()


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