de.up.ling.irtg.util

Class Util

java.lang.Object

de.up.ling.irtg.util.Util

public class Util
extends Object

Author:

koller

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Util.BottomUpTreeVisitor<L,V>

Constructor Summary

Constructors

Constructor and Description
Util()

Method Summary

Modifier and Type	Method and Description
static long	cputime()
static <L,V> V	dfs(Tree<L> tree, Util.BottomUpTreeVisitor<L,V> visitor)
static <V> void	forEachNode(Tree<V> tree, Consumer<V> visitor)
static String	formatTime(long timeInNs)
static String	formatTimeSince(long start)
static String	gensym(String prefix)
static String	getCurrentDateAndTimeAsString()
static String	getFilenameExtension(String fileName)
static String	getStackTrace(Throwable ex)
static <E,F> com.google.common.base.Function<E,F>	gfun(Function<E,F> javafun)
static <E,F> com.google.common.collect.ListMultimap<E,F>	groupBy(Iterable<F> elements, Function<F,E> by)
static Tree<String>	makeBinaryTree(String symbol, List<String> leaves)
static int[]	makeIntArray(int n, IntUnaryOperator sup)
static <E> List<E>	makeList(int n, IntFunction<E> sup)
static <E> List<E>	makeList(int n, Supplier<E> sup)
static Tree<String>	makeTreeWithArities(Tree<String> tree)
static int[]	mapIntArray(int[] array, IntUnaryOperator fn)
static <I> IntList	mapToIntList(Iterable<I> values, ToIntFunction<I> fn)
static <I,O> List<O>	mapToList(Iterable<I> values, Function<I,O> fn)
static <I,O> Set<O>	mapToSet(Iterable<I> values, Function<I,O> fn)
static <E,Up> Tree<Up>	mapTree(Tree<E> tree, com.google.common.base.Function<E,Up> fn)
static double	mult(DoubleStream stream)
static long	parseNumberWithPrefix(String str)
static void	printToFile(String filename, String content)
static String	repeat(String s, int repetitions)
static int	sampleMultinomial(int[] values, IntToDoubleFunction prob)
static int	sampleMultinomial(int[] values, IntToDoubleFunction prob, double totalProb)
static <T> Stream<T>	stream(Iterable<T> iterable)
static String	stripExtension(String filename)

Methods inherited from class java.lang.Object

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

Constructor Detail

Util

public Util()

Method Detail

gensym

public static String gensym(String prefix)

makeBinaryTree

public static Tree<String> makeBinaryTree(String symbol,
                                          List<String> leaves)

makeTreeWithArities

public static Tree<String> makeTreeWithArities(Tree<String> tree)

mapToList

public static <I,O> List<O> mapToList(Iterable<I> values,
                                      Function<I,O> fn)

mapToIntList

public static <I> IntList mapToIntList(Iterable<I> values,
                                       ToIntFunction<I> fn)

mapToSet

public static <I,O> Set<O> mapToSet(Iterable<I> values,
                                    Function<I,O> fn)

mapTree

public static <E,Up> Tree<Up> mapTree(Tree<E> tree,
                                      com.google.common.base.Function<E,Up> fn)

mapIntArray

public static int[] mapIntArray(int[] array,
                                IntUnaryOperator fn)

stream

public static <T> Stream<T> stream(Iterable<T> iterable)

getFilenameExtension

public static String getFilenameExtension(String fileName)

stripExtension

public static String stripExtension(String filename)

formatTime

public static String formatTime(long timeInNs)

formatTimeSince

public static String formatTimeSince(long start)

getCurrentDateAndTimeAsString

public static String getCurrentDateAndTimeAsString()

dfs

public static <L,V> V dfs(Tree<L> tree,
                          Util.BottomUpTreeVisitor<L,V> visitor)

forEachNode

public static <V> void forEachNode(Tree<V> tree,
                                   Consumer<V> visitor)

gfun

public static <E,F> com.google.common.base.Function<E,F> gfun(Function<E,F> javafun)

makeList

public static <E> List<E> makeList(int n,
                                   Supplier<E> sup)

makeList

public static <E> List<E> makeList(int n,
                                   IntFunction<E> sup)

makeIntArray

public static int[] makeIntArray(int n,
                                 IntUnaryOperator sup)

printToFile

public static void printToFile(String filename,
                               String content)

parseNumberWithPrefix

public static long parseNumberWithPrefix(String str)

mult

public static double mult(DoubleStream stream)

sampleMultinomial

public static int sampleMultinomial(int[] values,
                                    IntToDoubleFunction prob)

sampleMultinomial

public static int sampleMultinomial(int[] values,
                                    IntToDoubleFunction prob,
                                    double totalProb)

repeat

public static String repeat(String s,
                            int repetitions)

cputime

public static long cputime()

getStackTrace

public static String getStackTrace(Throwable ex)

groupBy

public static <E,F> com.google.common.collect.ListMultimap<E,F> groupBy(Iterable<F> elements,
                                                                        Function<F,E> by)