Package org.apache.jena.atlas.lib

Class Lib

java.lang.Object

org.apache.jena.atlas.lib.Lib

public class Lib
extends Object

Method Summary

Modifier and Type	Method	Description
static long	adler32(byte[] bytes)	Faster than CRC32, nearly as good.
static final String	className(Object obj)	Safely return the class short name for an object -- obj.getClass().getSimpleName()
static final String	classShortName(Class<?> cls)	Safely return the class short name for a class
static final <X> Set<X>	concurrentHashSet()	"ConcurrentHashSet"
static long	crc32(byte[] bytes)
static final <T> boolean	equals(T obj1, T obj2)	Return true if obj1 and obj are both null or are .equals, else return false Prefer Objects.equals(Object, Object)
static final boolean	equalsIgnoreCase(String str1, String str2)	Return true if obj1 and obj are both null or are .equals, else return false
static <T> boolean	equalsListAsSet(List<T> list1, List<T> list2)	Do two lists have the same elements without considering the order of the lists?
static final int	hashCodeObject(Object obj)	HashCode - allow nulls
static final int	hashCodeObject(Object obj, int nullHashCode)	HashCode - allow nulls
static String	murmurHashHex(String string)	Calculate the Murmur3 hash of a string, and return it as a hex-encoded string.
static final <T> boolean	notEqual(T obj1, T obj2)	Return true if obj1 and obj are not equal
static <X> X	readThreadLocal(ThreadLocal<X> threadLocal)	Read thread local, assuming that "null" means it does not exist for this thread.
static final void	sleep(int milliSeconds)
static final void	sync(Object object)
static <X> List<X>	toList(Stream<X> stream)	Stream to List
static UnsupportedOperationException	unsupportedMethod(Object object, String method)	Create UnsupportedOperationException with formatted message.

Methods inherited from class java.lang.Object

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

Method Details

toList

public static <X> List<X> toList(Stream<X> stream)

Stream to List

concurrentHashSet

public static final <X> Set<X> concurrentHashSet()

"ConcurrentHashSet"

sync

public static final void sync(Object object)

equals

public static final <T> boolean equals(T obj1,
 T obj2)

Return true if obj1 and obj are both null or are .equals, else return false Prefer Objects.equals(Object, Object)

equalsIgnoreCase

public static final boolean equalsIgnoreCase(String str1,
 String str2)

Return true if obj1 and obj are both null or are .equals, else return false

notEqual

public static final <T> boolean notEqual(T obj1,
 T obj2)

Return true if obj1 and obj are not equal

className

public static final String className(Object obj)

Safely return the class short name for an object -- obj.getClass().getSimpleName()

classShortName

public static final String classShortName(Class<?> cls)

Safely return the class short name for a class

unsupportedMethod

public static UnsupportedOperationException unsupportedMethod(Object object,
 String method)

Create UnsupportedOperationException with formatted message.

equalsListAsSet

public static <T> boolean equalsListAsSet(List<T> list1,
 List<T> list2)

Do two lists have the same elements without considering the order of the lists?

hashCodeObject

public static final int hashCodeObject(Object obj)

HashCode - allow nulls

hashCodeObject

public static final int hashCodeObject(Object obj,
 int nullHashCode)

HashCode - allow nulls

sleep

public static final void sleep(int milliSeconds)

readThreadLocal

public static <X> X readThreadLocal(ThreadLocal<X> threadLocal)

Read thread local, assuming that "null" means it does not exist for this thread. If null is read, the thread local is removed.

crc32

public static long crc32(byte[] bytes)

See Also:

• CRC32

adler32

public static long adler32(byte[] bytes)

Faster than CRC32, nearly as good.

See Also:

• Adler32

murmurHashHex

public static String murmurHashHex(String string)

Calculate the Murmur3 hash of a string, and return it as a hex-encoded string.