Module eu.hansolo.toolbox
Package eu.hansolo.toolbox

Class Helper

java.lang.Object
eu.hansolo.toolbox.Helper
public class Helper extends Object

  • Method Details

    • clamp

      public static final <T extends Number> T clamp(T min, T max, T value)

    • clamp

      public static final int clamp(int min, int max, int value)

    • clamp

      public static final long clamp(long min, long max, long value)

    • clamp

      public static final double clamp(double min, double max, double value)

    • clamp

      public static final Instant clamp(Instant min, Instant max, Instant value)

    • clamp

      public static final LocalDateTime clamp(LocalDateTime min, LocalDateTime max, LocalDateTime value)

    • clamp

      public static final LocalDate clamp(LocalDate min, LocalDate max, LocalDate value)

    • clampMin

      public static final double clampMin(double min, double value)

    • clampMax

      public static final double clampMax(double max, double value)

    • almostEqual

      public static final boolean almostEqual(double value1, double value2, double epsilon)

    • round

      public static final double round(double value, int precision)

    • roundTo

      public static final double roundTo(double value, double target)

    • roundToHalf

      public static final double roundToHalf(double value)

    • roundDoubleToInt

      public static final int roundDoubleToInt(double value)

    • equals

      public static final boolean equals(double a, double b)

    • biggerThan

      public static final boolean biggerThan(double a, double b)

    • lessThan

      public static final boolean lessThan(double a, double b)

    • isPositiveInteger

      public static final boolean isPositiveInteger(String text)

    • trimPrefix

      public static final String trimPrefix(String text, String prefix)

    • getDateFormat

      public static final DateTimeFormatter getDateFormat(Locale locale)

    • getLocalizedDateFormat

      public static final DateTimeFormatter getLocalizedDateFormat(Locale locale)

    • normalize

      public static final String normalize(String text)

    • getDegrees

      public static final int getDegrees(double decDeg)

    • getMinutes

      public static final int getMinutes(double decDeg)

    • getSeconds

      public static final double getSeconds(double decDeg)

    • getDecimalDeg

      public static final double getDecimalDeg(int degrees, int minutes, double seconds)

    • not

      public static final <T> Predicate<T> not(Predicate<T> predicate)

    • lastN

      public static <T> Collector<T,?,List<T>> lastN(int n)

    • getDoubleFromText

      public static final double getDoubleFromText(String text)

    • getIntFromText

      public static final int getIntFromText(String text)

    • getHexColorFromString

      public static final String getHexColorFromString(String text)

    • readFromInputStream

      public static final String readFromInputStream(InputStream inputStream) throws IOException
      Throws:
      IOException

    • readTextFileToString

      public static final String readTextFileToString(String filename)

    • readTextFileToString

      public static final String readTextFileToString(File file)

    • saveStringToTextFile

      public static final void saveStringToTextFile(String filename, String text)

    • getFirstDayOfWeek

      public static final LocalDate getFirstDayOfWeek(int year, int weekNumber, Locale locale)

    • getEpochSecondsOfFirstDayOfWeek

      public static final long getEpochSecondsOfFirstDayOfWeek(int year, int weekNumber, Locale locale)

    • getLastDayOfWeek

      public static final LocalDate getLastDayOfWeek(int year, int weekNumber, Locale locale)

    • getEpochSecondsOfLastDayOfWeek

      public static final long getEpochSecondsOfLastDayOfWeek(int year, int weekNumber, Locale locale)

    • getWeekOfYear

      public static final int getWeekOfYear(ZonedDateTime zonedDateTime)

    • getWeekOfYeear

      public static final int getWeekOfYeear(Instant instant)

    • getWeekOfYear

      public static final int getWeekOfYear(Instant instant, ZoneId zoneId)

    • getWeekOfYear

      public static final int getWeekOfYear(LocalDateTime dateTime)

    • getWeekOfYear

      public static final int getWeekOfYear(LocalDate date)

    • getWeekOfYear

      public static final int getWeekOfYear(long epochSeconds)

    • getWeekOfYear

      public static final int getWeekOfYear(long epochSeconds, ZoneId zoneId)

    • shortenNumber

      public static final String shortenNumber(long value)

    • shortenNumber

      public static final String shortenNumber(long value, Locale locale)

    • getMaxValueInMap

      public static final <K, V extends Comparable<V>> V getMaxValueInMap(Map<K,V> map)

    • getKeyWithMaxValueInMap

      public static final <K, V extends Comparable<V>> K getKeyWithMaxValueInMap(Map<K,V> map)

    • secondsToHHMMString

      public static final String secondsToHHMMString(long seconds)

    • secondsToHHMMSS

      public static final long[] secondsToHHMMSS(long seconds)

    • getCRC32Checksum

      public static final long getCRC32Checksum(byte[] bytes)

    • getMD5

      public static final String getMD5(String text)

    • getMD5

      public static final String getMD5(byte[] bytes)

    • getMD5Bytes

      public static final byte[] getMD5Bytes(byte[] bytes)

    • getMD5ForFile

      public static final String getMD5ForFile(File file) throws Exception
      Throws:
      Exception

    • getSHA1

      public static final String getSHA1(String text)

    • getSHA1

      public static final String getSHA1(byte[] bytes)

    • getSHA1Bytes

      public static final byte[] getSHA1Bytes(byte[] bytes)

    • getSHA1ForFile

      public static final String getSHA1ForFile(File file) throws Exception
      Throws:
      Exception

    • getSHA256

      public static final String getSHA256(String text)

    • getSHA256

      public static final String getSHA256(byte[] bytes)

    • getSHA256Bytes

      public static final byte[] getSHA256Bytes(byte[] bytes)

    • getSHA256ForFile

      public static final String getSHA256ForFile(File file) throws Exception
      Throws:
      Exception

    • getSHA3_256

      public static final String getSHA3_256(String text)

    • getSHA3_256

      public static final String getSHA3_256(byte[] bytes)

    • getSHA3_256Bytes

      public static final byte[] getSHA3_256Bytes(byte[] bytes)

    • getSHA3_256ForFile

      public static final String getSHA3_256ForFile(File file) throws Exception
      Throws:
      Exception

    • bytesToHex

      public static final String bytesToHex(byte[] bytes)

    • nonEmpty

      public static final Optional<String> nonEmpty(String text)

    • padLeft

      public static final String padLeft(String input, char ch, int length)

    • padRight

      public static final String padRight(String input, char ch, int length)

    • getPhysicalCores

      public static final int getPhysicalCores()

    • getLogicalCores

      public static final int getLogicalCores()

    • getTotalMemory

      public static final long getTotalMemory()

    • getMaxMemory

      public static final long getMaxMemory()

    • getFreeMemory

      public static final long getFreeMemory()

    • getArchitecture

      public static final Constants.Architecture getArchitecture()

    • getArchitecture

      public static final Constants.Architecture getArchitecture(Constants.OperatingSystem operatingSystem)

    • getOperatingSystem

      public static final Constants.OperatingSystem getOperatingSystem()

    • getOperatingMode

      public static final Constants.OperatingMode getOperatingMode()

    • getOperatingMode

      public static final Constants.OperatingMode getOperatingMode(Constants.OperatingSystem operatingSystem)

    • getOperatingSystemInfo

      public static final Helper.OperatingSystemInfo getOperatingSystemInfo()

    • getJvmInfo

      public static final Helper.JvmInfo getJvmInfo()

    • getCompilationInfo

      public static final Helper.CompilationInfo getCompilationInfo()

    • getClassLoadingInfo

      public static final Helper.ClassLoadingInfo getClassLoadingInfo()

    • getHeapInfo

      public static final Helper.HeapInfo getHeapInfo()

    • getMemInfo

      public static final Helper.MemInfo getMemInfo()

    • getRootInfos

      public static final List<Helper.RootInfo> getRootInfos()

    • getSystemSummary

      public static final Helper.SystemSummary getSystemSummary()

    • calcDistanceInMeter

      public static final double calcDistanceInMeter(GeoLocation location1, GeoLocation location2)

    • calcDistanceInMeter

      public static final double calcDistanceInMeter(double latitude1, double longitude1, double latitude2, double longitude2)

    • calcBearingInDegree

      public static final double calcBearingInDegree(GeoLocation location1, GeoLocation location2)

    • calcBearingInDegree

      public static final double calcBearingInDegree(double latitude1, double longitude1, double latitude2, double longitude2)

    • getCardinalDirectionFromBearing

      public static final CardinalDirection getCardinalDirectionFromBearing(double brng)