Package org.apache.logging.log4j.core.util.internal.instant

Class InstantPatternDynamicFormatter.SecondPatternSequence

java.lang.Object

org.apache.logging.log4j.core.util.internal.instant.InstantPatternDynamicFormatter.PatternSequence

org.apache.logging.log4j.core.util.internal.instant.InstantPatternDynamicFormatter.SecondPatternSequence

Enclosing class:

InstantPatternDynamicFormatter

static class InstantPatternDynamicFormatter.SecondPatternSequence
extends InstantPatternDynamicFormatter.PatternSequence

Field Summary

Fields

Modifier and Type	Field	Description
private final int	fractionalDigits
private static final int[]	POWERS_OF_TEN
private final int	secondDigits
private final String	separator

Fields inherited from class org.apache.logging.log4j.core.util.internal.instant.InstantPatternDynamicFormatter.PatternSequence

pattern, precision

Constructor Summary

Constructors

Constructor	Description
SecondPatternSequence(int secondDigits, String separator, int fractionalDigits)

Method Summary

Modifier and Type	Method	Description
(package private) InstantPatternFormatter	createFormatter(Locale locale, TimeZone timeZone)
private static String	createPattern(int secondDigits, String separator, int fractionalDigits)
private static ChronoUnit	determinePrecision(int secondDigits, int digits)
private void	formatFractionalDigits(StringBuilder buffer, Instant instant)
private static void	formatMillis(StringBuilder buffer, Instant instant)
private static void	formatPaddedSeconds(StringBuilder buffer, Instant instant)
private static void	formatUnpaddedSeconds(StringBuilder buffer, Instant instant)
(package private) @Nullable InstantPatternDynamicFormatter.PatternSequence	tryMerge(InstantPatternDynamicFormatter.PatternSequence other, ChronoUnit thresholdPrecision)	Tries to merge two pattern sequences.

Methods inherited from class org.apache.logging.log4j.core.util.internal.instant.InstantPatternDynamicFormatter.PatternSequence

equals, escapeLiteral, hashCode, isConstantForDurationOf, mergePatterns, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

POWERS_OF_TEN

private static final int[] POWERS_OF_TEN

secondDigits

private final int secondDigits

separator

private final String separator

fractionalDigits

private final int fractionalDigits

Constructor Details

SecondPatternSequence

SecondPatternSequence(int secondDigits,
 String separator,
 int fractionalDigits)

Method Details

createPattern

private static String createPattern(int secondDigits,
 String separator,
 int fractionalDigits)

determinePrecision

private static ChronoUnit determinePrecision(int secondDigits,
 int digits)

formatUnpaddedSeconds

private static void formatUnpaddedSeconds(StringBuilder buffer,
 Instant instant)

formatPaddedSeconds

private static void formatPaddedSeconds(StringBuilder buffer,
 Instant instant)

formatFractionalDigits

private void formatFractionalDigits(StringBuilder buffer,
 Instant instant)

formatMillis

private static void formatMillis(StringBuilder buffer,
 Instant instant)

createFormatter

InstantPatternFormatter createFormatter(Locale locale,
 TimeZone timeZone)

Specified by:

createFormatter in class InstantPatternDynamicFormatter.PatternSequence

tryMerge

@Nullable InstantPatternDynamicFormatter.PatternSequence tryMerge(InstantPatternDynamicFormatter.PatternSequence other,
 ChronoUnit thresholdPrecision)

Description copied from class: InstantPatternDynamicFormatter.PatternSequence

Tries to merge two pattern sequences.

If not

invalid @link

{@link null

}, the pattern sequence returned by this method must:

1. Have a InstantPatternDynamicFormatter.PatternSequence.precision, which is the minimum of the precisions of the two merged sequences.
2. Create formatters that are equivalent to the concatenation of the formatters produced by the two merged sequences.

The returned pattern sequence should try to achieve these two goals:

1. Create formatters which are faster than the concatenation of the formatters produced by the two merged sequences.
2. It should be
   invalid @link

   {@link null

   } if one of the pattern sequences is effectively constant over thresholdPrecision, but the other one is not.

Specified by:

tryMerge in class InstantPatternDynamicFormatter.PatternSequence

Parameters:

other - A pattern sequence.

thresholdPrecision - A precision threshold to determine effectively constant sequences. This prevents merging effectively constant and dynamic pattern sequences.

Returns:

A merged formatter factory or null if merging is not possible.