soot.jimple.spark.ondemand.genericutil

Class Util

java.lang.Object

soot.jimple.spark.ondemand.genericutil.Util

public class Util
extends java.lang.Object

Miscellaneous utility functions.

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.BitSet	EMPTY_BITSET The empty BitSet.
static boolean	FULLY_QUALIFIED_NAMES Generate strings with fully qualified names or not

Constructor Summary

Constructors

Constructor and Description
Util()

Method Summary

Modifier and Type	Method and Description
static <T> void	addIfNotNull(T val, java.util.Collection<T> vals)
static boolean	arrayContains(java.lang.Object[] arr, java.lang.Object obj, int size)
static int	binaryLogUp(int n_) Binary log: finds the smallest power k such that 2^k>=n
static int	binaryLogUp(long n_) Binary log: finds the smallest power k such that 2^k>=n
static void	clear(java.util.BitSet bitSet_) Clear a BitSet.
static <T> void	doForAll(java.util.Collection<T> c_, ObjectVisitor<T> v_) Perform an action for all elements in a collection.
static java.math.BigInteger	fact(java.math.BigInteger n_) Factorial
static double	fact(double n_) Factorial on doubles; avoids overflow problems present when using integers.
static int	fact(int n_) Factorial
static long	fact(long n_) Factorial
static <T> java.util.List<T>	filter(java.util.Collection<T> src_, Predicate<T> pred_) Filter a collection: generate a new list from an existing collection, consisting of the elements satisfying some predicate.
static <T> void	filter(java.util.Collection<T> src_, Predicate<T> pred_, java.util.List<T> result_) Filter a collection according to some predicate, placing the result in a List
static <T> T	find(java.util.Collection<T> c_, Predicate<T> p_) Test whether some element of the given Collection satisfies the given Predicate.
static <T> java.util.Collection<T>	findAll(java.util.Collection<T> c_, Predicate<T> p_) Test whether some element of the given Collection satisfies the given Predicate.
static <T> boolean	forAll(java.util.Collection<T> c_, Predicate<T> p_) Test whether all elements of the given Collection satisfy the given Predicate.
static <T> boolean	forSome(java.util.Collection<T> c_, Predicate<T> p_) Test whether some element of the given Collection satisfies the given Predicate.
static int	getInt(java.lang.Integer i)
static int	hashArray(java.lang.Object[] objs)
static <T> boolean	intersecting(java.util.Set<T> s1, java.util.Set<T> s2) checks if two sets have a non-empty intersection
static <T,U> java.util.List<U>	map(java.util.List<T> srcList, Mapper<T,U> mapper_) Map a list: generate a new list with each element mapped.
static <T,U> java.util.Set<U>	mapToSet(java.util.Collection<T> srcSet, Mapper<T,U> mapper_) Map a set: generate a new set with each element mapped.
static java.lang.String	objArrayToString(java.lang.Object[] o)
static java.lang.String	objArrayToString(java.lang.Object[] o, java.lang.String start, java.lang.String end, java.lang.String sep)
static java.lang.String	objectFieldsToString(java.lang.Object obj) Write object fields to string
static <T> java.util.List<T>	pickNAtRandom(java.util.List<T> vals, int n, long seed)
static int[]	realloc(int[] data_, int newSize_)
static java.lang.String	removeAll(java.lang.String str_, java.lang.String sub_) Remove all occurrences of a given substring in a given String
static java.lang.String	removePackageName(java.lang.String fully_qualified_name_) Remove the package name from a fully qualified class name
static java.lang.String	replaceAll(java.lang.String str_, java.lang.String sub_, java.lang.String newSub_) Replace all occurrences of a given substring in a given String.
static java.lang.String	str(int[] ints_) Convert an int[] to a String for printing
static java.lang.String	str(java.lang.Throwable thrown_) Get a String representation of a Throwable.
static boolean	stringContains(java.lang.String str, java.lang.String subStr)
static java.lang.String	topLevelTypeString(java.lang.String typeStr) given the name of a class C, returns the name of the top-most enclosing class of class C.
static java.lang.String	toStringNull(java.lang.Object o)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_BITSET

public static final java.util.BitSet EMPTY_BITSET

The empty BitSet.

FULLY_QUALIFIED_NAMES

public static final boolean FULLY_QUALIFIED_NAMES

Generate strings with fully qualified names or not

See Also:

Constant Field Values

Constructor Detail

Util

public Util()

Method Detail

fact

public static long fact(long n_)

Factorial

fact

public static java.math.BigInteger fact(java.math.BigInteger n_)

Factorial

fact

public static double fact(double n_)

Factorial on doubles; avoids overflow problems present when using integers.

Parameters:

n_ - arg on which to compute factorial

Returns:

(double approximation to) factorial of largest positive integer <= (n_ + epsilon)

fact

public static int fact(int n_)

Factorial

binaryLogUp

public static int binaryLogUp(int n_)

Binary log: finds the smallest power k such that 2^k>=n

binaryLogUp

public static int binaryLogUp(long n_)

Binary log: finds the smallest power k such that 2^k>=n

str

public static java.lang.String str(int[] ints_)

Convert an int[] to a String for printing

objArrayToString

public static java.lang.String objArrayToString(java.lang.Object[] o)

objArrayToString

public static java.lang.String objArrayToString(java.lang.Object[] o,
                                                java.lang.String start,
                                                java.lang.String end,
                                                java.lang.String sep)

str

public static java.lang.String str(java.lang.Throwable thrown_)

Get a String representation of a Throwable.

forSome

public static <T> boolean forSome(java.util.Collection<T> c_,
                                  Predicate<T> p_)

Test whether some element of the given Collection satisfies the given Predicate.

find

public static <T> T find(java.util.Collection<T> c_,
                         Predicate<T> p_)

Test whether some element of the given Collection satisfies the given Predicate.

Returns:

The first element satisfying the predicate; otherwise null.

findAll

public static <T> java.util.Collection<T> findAll(java.util.Collection<T> c_,
                                                  Predicate<T> p_)

Test whether some element of the given Collection satisfies the given Predicate.

Returns:

All the elements satisfying the predicate

forAll

public static <T> boolean forAll(java.util.Collection<T> c_,
                                 Predicate<T> p_)

Test whether all elements of the given Collection satisfy the given Predicate.

doForAll

public static <T> void doForAll(java.util.Collection<T> c_,
                                ObjectVisitor<T> v_)

Perform an action for all elements in a collection.

Parameters:

c_ - the collection

v_ - the visitor defining the action

map

public static <T,U> java.util.List<U> map(java.util.List<T> srcList,
                                          Mapper<T,U> mapper_)

Map a list: generate a new list with each element mapped. The new list is always an ArrayList; it would have been more precise to use reflection to create a list of the same type as 'srcList', but reflection works really slowly in some implementations, so it's best to avoid it.

filter

public static <T> java.util.List<T> filter(java.util.Collection<T> src_,
                                           Predicate<T> pred_)

Filter a collection: generate a new list from an existing collection, consisting of the elements satisfying some predicate. The new list is always an ArrayList; it would have been more precise to use reflection to create a list of the same type as 'srcList', but reflection works really slowly in some implementations, so it's best to avoid it.

filter

public static <T> void filter(java.util.Collection<T> src_,
                              Predicate<T> pred_,
                              java.util.List<T> result_)

Filter a collection according to some predicate, placing the result in a List

Parameters:

src_ - collection to be filtered

pred_ - the predicate

result_ - the list for the result. assumed to be empty

mapToSet

public static <T,U> java.util.Set<U> mapToSet(java.util.Collection<T> srcSet,
                                              Mapper<T,U> mapper_)

Map a set: generate a new set with each element mapped. The new set is always a HashSet; it would have been more precise to use reflection to create a set of the same type as 'srcSet', but reflection works really slowly in some implementations, so it's best to avoid it.

realloc

public static int[] realloc(int[] data_,
                            int newSize_)

clear

public static void clear(java.util.BitSet bitSet_)

Clear a BitSet.

replaceAll

public static java.lang.String replaceAll(java.lang.String str_,
                                          java.lang.String sub_,
                                          java.lang.String newSub_)

Replace all occurrences of a given substring in a given String.

removeAll

public static java.lang.String removeAll(java.lang.String str_,
                                         java.lang.String sub_)

Remove all occurrences of a given substring in a given String

objectFieldsToString

public static java.lang.String objectFieldsToString(java.lang.Object obj)

Write object fields to string

removePackageName

public static java.lang.String removePackageName(java.lang.String fully_qualified_name_)

Remove the package name from a fully qualified class name

hashArray

public static int hashArray(java.lang.Object[] objs)

Returns:

arrayContains

public static boolean arrayContains(java.lang.Object[] arr,
                                    java.lang.Object obj,
                                    int size)

toStringNull

public static java.lang.String toStringNull(java.lang.Object o)

intersecting

public static <T> boolean intersecting(java.util.Set<T> s1,
                                       java.util.Set<T> s2)

checks if two sets have a non-empty intersection

Parameters:

s1 -

s2 -

Returns:

true if the sets intersect; false otherwise

stringContains

public static boolean stringContains(java.lang.String str,
                                     java.lang.String subStr)

getInt

public static int getInt(java.lang.Integer i)

topLevelTypeString

public static java.lang.String topLevelTypeString(java.lang.String typeStr)

given the name of a class C, returns the name of the top-most enclosing class of class C. For example, given A$B$C, the method returns A

Parameters:

typeStr -

Returns:

addIfNotNull

public static <T> void addIfNotNull(T val,
                                    java.util.Collection<T> vals)

pickNAtRandom

public static <T> java.util.List<T> pickNAtRandom(java.util.List<T> vals,
                                                  int n,
                                                  long seed)