org.bluedb.disk

Class Blutils

java.lang.Object

org.bluedb.disk.Blutils

public class Blutils
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Blutils.CheckedFunction<T,R>
static interface	Blutils.UnreliableFunction<T,E extends java.lang.Throwable>

Constructor Summary

Constructors

Constructor and Description
Blutils()

Method Summary

Modifier and Type	Method and Description
static <X> java.util.List<X>	filter(java.util.List<X> values, java.util.function.Predicate<X> condition)
static <X> int	lastIndex(java.util.List<X> values, java.util.function.Predicate<X> condition)
static <X,Y> java.util.List<Y>	map(java.util.List<? extends X> values, Blutils.CheckedFunction<? super X,? extends Y> mapper)
static <X,Y> java.util.List<Y>	mapIgnoringExceptions(java.util.List<? extends X> values, Blutils.CheckedFunction<? super X,? extends Y> mapper)
static <X extends java.io.Serializable> boolean	meetsConditions(java.util.List<Condition<X>> conditions, X object)
static void	recursiveDelete(java.io.File file)
static long	roundDownToMultiple(long value, long multiple)
static <X,Y extends java.lang.Comparable<Y>> void	sortByMappedValue(java.util.List<X> values, java.util.function.Function<? super X,? extends Y> mapper)
static java.lang.Runnable	surroundTaskWithTryCatch(java.lang.Runnable r)
static java.lang.String	toHex(byte[] bytes)
static java.lang.String	toHex(byte[] bytes, int offset, int length)
static <T,E extends java.lang.Throwable> T	tryMultipleTimes(int attempts, Blutils.UnreliableFunction<T,E> function)
static boolean	trySleep(long timeMillis)

Methods inherited from class java.lang.Object

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

Constructor Detail

Blutils

public Blutils()

Method Detail

meetsConditions

public static <X extends java.io.Serializable> boolean meetsConditions(java.util.List<Condition<X>> conditions,
                                                                       X object)

roundDownToMultiple

public static long roundDownToMultiple(long value,
                                       long multiple)

sortByMappedValue

public static <X,Y extends java.lang.Comparable<Y>> void sortByMappedValue(java.util.List<X> values,
                                                                           java.util.function.Function<? super X,? extends Y> mapper)

map

public static <X,Y> java.util.List<Y> map(java.util.List<? extends X> values,
                                          Blutils.CheckedFunction<? super X,? extends Y> mapper)
                                   throws BlueDbException

Throws:

BlueDbException

mapIgnoringExceptions

public static <X,Y> java.util.List<Y> mapIgnoringExceptions(java.util.List<? extends X> values,
                                                            Blutils.CheckedFunction<? super X,? extends Y> mapper)

filter

public static <X> java.util.List<X> filter(java.util.List<X> values,
                                           java.util.function.Predicate<X> condition)

lastIndex

public static <X> int lastIndex(java.util.List<X> values,
                                java.util.function.Predicate<X> condition)

trySleep

public static boolean trySleep(long timeMillis)

recursiveDelete

public static void recursiveDelete(java.io.File file)

tryMultipleTimes

public static <T,E extends java.lang.Throwable> T tryMultipleTimes(int attempts,
                                                                   Blutils.UnreliableFunction<T,E> function)
                                                            throws java.lang.Throwable

Throws:

java.lang.Throwable

toHex

public static java.lang.String toHex(byte[] bytes)

toHex

public static java.lang.String toHex(byte[] bytes,
                                     int offset,
                                     int length)

surroundTaskWithTryCatch

public static java.lang.Runnable surroundTaskWithTryCatch(java.lang.Runnable r)