Package ch.qos.logback.core.rolling

Class FixedWindowRollingPolicy

java.lang.Object

ch.qos.logback.core.spi.ContextAwareBase

ch.qos.logback.core.rolling.RollingPolicyBase

ch.qos.logback.core.rolling.FixedWindowRollingPolicy

All Implemented Interfaces:

RollingPolicy, ContextAware, LifeCycle

public class FixedWindowRollingPolicy
extends RollingPolicyBase

When rolling over, FixedWindowRollingPolicy renames files according to a fixed window algorithm. For more information about this policy, please refer to the online manual at http://logback.qos.ch/manual/appenders.html#FixedWindowRollingPolicy

Field Summary

Fields

Modifier and Type	Field	Description
(package private) Compressor	compressor
(package private) static java.lang.String	FNP_NOT_SET
private static int	MAX_WINDOW_SIZE	It's almost always a bad idea to have a large window size, say over 20.
(package private) int	maxIndex
(package private) int	minIndex
(package private) static java.lang.String	PRUDENT_MODE_UNSUPPORTED
(package private) static java.lang.String	SEE_PARENT_FN_NOT_SET
(package private) RenameUtil	util
static java.lang.String	ZIP_ENTRY_DATE_PATTERN

Fields inherited from class ch.qos.logback.core.rolling.RollingPolicyBase

compressionMode, fileNamePattern, fileNamePatternStr, zipEntryFileNamePattern

Fields inherited from class ch.qos.logback.core.spi.ContextAwareBase

context

Constructor Summary

Constructors

Constructor	Description
FixedWindowRollingPolicy()

Method Summary

Modifier and Type	Method	Description
java.lang.String	getActiveFileName()	Return the value of the parent's RawFile property.
int	getMaxIndex()
protected int	getMaxWindowSize()	Subclasses can override this method to increase the max window size, if required.
int	getMinIndex()
void	rollover()	Rolls over log files according to implementation policy.
void	setMaxIndex(int maxIndex)
void	setMinIndex(int minIndex)
void	start()
private java.lang.String	transformFileNamePatternFromInt2Date(java.lang.String fileNamePatternStr)

Methods inherited from class ch.qos.logback.core.rolling.RollingPolicyBase

determineCompressionMode, getCompressionMode, getFileNamePattern, getParentsRawFileProperty, isParentPrudent, isStarted, setFileNamePattern, setParent, stop

Methods inherited from class ch.qos.logback.core.spi.ContextAwareBase

addError, addError, addInfo, addInfo, addStatus, addWarn, addWarn, getContext, getDeclaredOrigin, getStatusManager, setContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FNP_NOT_SET

static final java.lang.String FNP_NOT_SET

See Also:

Constant Field Values

PRUDENT_MODE_UNSUPPORTED

static final java.lang.String PRUDENT_MODE_UNSUPPORTED

See Also:

Constant Field Values

SEE_PARENT_FN_NOT_SET

static final java.lang.String SEE_PARENT_FN_NOT_SET

See Also:

Constant Field Values

maxIndex

int maxIndex

minIndex

int minIndex

util

RenameUtil util

compressor

Compressor compressor

ZIP_ENTRY_DATE_PATTERN

public static final java.lang.String ZIP_ENTRY_DATE_PATTERN

See Also:

Constant Field Values

MAX_WINDOW_SIZE

private static int MAX_WINDOW_SIZE

It's almost always a bad idea to have a large window size, say over 20.

Constructor Detail

FixedWindowRollingPolicy

public FixedWindowRollingPolicy()

Method Detail

start

public void start()

Specified by:

start in interface LifeCycle

Overrides:

start in class RollingPolicyBase

getMaxWindowSize

protected int getMaxWindowSize()

Subclasses can override this method to increase the max window size, if required. This is to address LOGBACK-266.

Returns:

transformFileNamePatternFromInt2Date

private java.lang.String transformFileNamePatternFromInt2Date(java.lang.String fileNamePatternStr)

rollover

public void rollover()
              throws RolloverFailure

Description copied from interface: RollingPolicy

Rolls over log files according to implementation policy.

This method is invoked by RollingFileAppender, usually at the behest of its TriggeringPolicy.

Throws:

RolloverFailure - Thrown if the rollover operation fails for any reason.

getActiveFileName

public java.lang.String getActiveFileName()

Return the value of the parent's RawFile property.

getMaxIndex

public int getMaxIndex()

getMinIndex

public int getMinIndex()

setMaxIndex

public void setMaxIndex(int maxIndex)

setMinIndex

public void setMinIndex(int minIndex)