Package io.inversion.utils

Class Utils

java.lang.Object

io.inversion.utils.Utils

public class Utils
extends java.lang.Object

Collection of utility methods designed to make java programming less verbose

Constructor Summary

Constructors

Constructor	Description
Utils()

Method Summary

Modifier and Type	Method	Description
static <T extends java.util.Collection> T	add(T collection, java.lang.Object... items)	Fluent override of Collections.addAll()
static java.util.Map	addToMap(java.util.Map map, java.lang.Object... keyValuePairs)
static java.util.ArrayList	asList(java.lang.Object... objects)	Similar to Arrays.asList but with raw ArrayList return type assuming that all objects don't have to be the same type.
static java.util.LinkedHashMap	asMap(java.lang.Object... keyValuePairs)	Adds each even and old object as a key/value pair to a HashMap
static java.util.HashSet	asSet(java.lang.Object... objects)	Similar to Arrays.asList but returning a raw HashSet assuming that all objects don't have to be the same type.
static boolean	atob(java.lang.Object str)	Converst a string to a boolean.
static double	atod(java.lang.Object str)	Convert a string to a double.
static float	atof(java.lang.Object str)	Convert a string to a float.
static int	atoi(java.lang.Object str)	Convert a string to an integer.
static long	atol(java.lang.Object str)	Convert a string to a long.
static java.lang.String	beautifyName(java.lang.String name)	Try to make an attractive camelCase valid javascript variable name.
static java.lang.String	bytesToHex(byte[] bytes)
static java.lang.String	capitalize(java.lang.String str)
static java.lang.Object	cast(java.lang.Class clazz, java.lang.String string)
static boolean	checkSame(java.lang.String str1, java.lang.String str2)
static void	close(java.lang.Object... toClose)	Utility to call a close() method on supplied objects if it exists and completely ignore any exceptions.
static boolean	containsToken(java.lang.String findThisToken, java.lang.String inThisString)	Checks for a whole word case insensitive match of findThisToken in inThisString
static java.io.File	createTempFile(java.lang.String fileName)
static java.util.Date	date(java.lang.String date)	Attempts to parse a date with several usual formats.
static java.util.Date	date(java.lang.String date, java.lang.String format)	Faster way to apply a SimpleDateFormat without having to catch ParseException
static java.lang.String	dequote(java.lang.String str)	Removes all matching pairs of '"` characters from the start and end of a string.
static java.lang.String	dequote(java.lang.String str, char[] quoteChars)	Removes all matching pairs of leading/trailing quoteChars from the start and end of a string.
static java.util.Set	disjunction(java.util.Collection a, java.util.Collection b)	Returns the items of 'a' that are not in 'b' and the items of 'b' that are not in 'a'.
static boolean	empty(java.lang.Object... arr)
static boolean	endsWith(java.lang.CharSequence seq, java.lang.String end)	String.endsWith surrogate for StringBuffer and StringBuilder
static boolean	equal(java.lang.Object obj1, java.lang.Object obj2)	A null safe loose equality checker.
static void	error(java.lang.String message)	Shortcut for throw new RuntimeException(message);
static java.lang.RuntimeException	ex(java.lang.String messageFormat, java.lang.Object... args)
static java.lang.RuntimeException	ex(java.lang.Throwable ex)
static java.lang.RuntimeException	ex(java.lang.Throwable cause, java.lang.String messageFormat, java.lang.Object... args)
static java.util.List<java.lang.String>	explode(java.lang.String delimiter, java.lang.String... pieces)	Similar to String.split but trims whitespace and excludes empty strings
static <M extends java.util.Map<java.lang.String,?>> M	filter(M map, java.lang.String... tokensToRemove)	Removes any keys that contain a whole word token contained in tokensToRemove
static java.io.InputStream	findInputStream(java.lang.Object caller, java.lang.String fileOrUrl)	Attempts to locate the stream as a file, url, or classpath resource
static java.lang.String	findSysEnvProp(java.lang.String... names)
static java.lang.Object	first(java.util.List list)
static java.lang.String	format(java.lang.String format, java.lang.Object... args)	A heroically forgiving message string formatter.
static java.lang.String	formatDate(java.util.Date date, java.lang.String format)	Simple one liner to avoid verbosity of using SimpleDateFormat
static java.lang.String	formatIso8601(java.util.Date date)
static java.lang.Throwable	getCause(java.lang.Throwable t)	Tries to unwrap nested exceptions looking for the root cause
static java.lang.reflect.Field	getField(java.lang.String fieldName, java.lang.Class clazz)	Searches the inheritance hierarchy for a field with the the given name and makes sure it is settable via Field.setAccessible().
static java.util.List<java.lang.reflect.Field>	getFields(java.lang.Class clazz)	Gets all the fields from from all classes in the inheritance hierarchy EXCEPT for any class who's packages starts with "java*".
static java.lang.reflect.Method	getMethod(java.lang.Class clazz, java.lang.String name)	Searches the inheritance hierarchy for the first method of the given name (ignores case).
static java.lang.Object	getProperty(java.lang.String name, java.lang.Object object)	Tries to find a bean property getter then defaults to returning the Field value
static java.lang.String	getShortCause(java.lang.Throwable t)
static java.lang.String	getShortCause(java.lang.Throwable t, int lines)
static java.util.List<java.lang.String>	getStackTraceLines(java.lang.Throwable stackTrace)
static java.lang.String	getStackTraceString(java.lang.Throwable stackTrace)
static java.lang.String	getSysEnvProp(java.lang.String name)
static java.lang.String	getSysEnvProp(java.lang.String name, java.lang.String defaultValue)
static java.lang.String	hash(byte[] bytes, java.lang.String algorithm)
static byte[]	hexToBytes(java.lang.String hexString)
static java.lang.String	implode(java.lang.String glue, java.lang.Object... pieces)	Concatenates non empty pieces separated by glue and intelligently flattens collections.
static boolean	in(java.lang.Object toFind, java.lang.Object... values)	Checks to see if toFind is in values array using loose equality checking
static boolean	isRegex(java.lang.String string)	Checks string for wildcard control characters.
static boolean	isWildcard(java.lang.String str)
static java.lang.Object	last(java.util.List list)
static java.lang.String	limitLines(java.lang.String text, int limit)
static java.lang.String	md5(byte[] bytes)
static java.lang.String	pad(java.lang.String input, int len)
static java.util.Date	parseIso8601(java.lang.String date)
static java.util.LinkedHashMap<java.lang.String,java.lang.String>	parseQueryString(java.lang.String query)
static void	pipe(java.io.InputStream in, java.io.OutputStream out)	Copy all data from src to dst and close the streams
static void	pipe(java.io.InputStream in, java.io.OutputStream out, boolean closeInputStream, boolean closeOutputStream)
static java.lang.String	printTable(java.util.List<java.util.List> table)
static java.lang.String	read(java.io.File file)	Read the contents of a file to a string
static java.lang.String	read(java.io.InputStream in)	Read all of the stream to a string and close the stream.
static java.lang.String	read(java.lang.Object caller, java.lang.String fileOrUrl)	Finds an input stream for fileOrUrl and reads it into a string
static java.lang.String	replaceVars(java.lang.String string, java.util.Map<java.lang.String,java.lang.Object> replacements)	Replaces '{mapKeyName}' with 'mapValue' in the supplied string.
static void	rethrow(java.lang.String message, java.lang.Throwable error)	Throws the root cause of e as a RuntimeException
static void	rethrow(java.lang.Throwable error)	Throws the root cause of error as a RuntimeException
static int	roundUp(int num, int divisor)
static java.lang.String	sha1(byte[] bytes)
static void	sleep(long milliseconds)	Easy way to call Thread.sleep(long) without worrying about try/catch for InterruptedException
static java.lang.String	slugify(java.lang.String str)	Creates a lowercase url safe string.
static java.util.List<java.lang.String>	split(java.lang.String string, char splitOn, char... quoteChars)	Breaks the string on splitOn but not when inside a quoteChars quoted string.
static java.lang.String[]	splitLines(java.lang.String text)
static boolean	startsWith(java.lang.CharSequence seq, java.lang.String start)	String.startsWith surrogate for StringBuffer and StringBuilder
static java.lang.String	substringAfter(java.lang.String string, java.lang.String breakAfterLast)
static java.lang.String	substringBefore(java.lang.String string, java.lang.String breakBefore)
static boolean	testCompare(java.lang.String expected, java.lang.String actual)
static long	time()	Less typing to call System.currentTimeMillis()
static java.math.BigDecimal	toDollarAmount(double amount)	Turns a double value into a rounded double with 2 digits of precision 12.3334 -@gt; 12.33 23.0 -@gt; 23.00 45.677 -@gt; 45.68
static java.lang.String	toPluralForm(java.lang.String str)
static java.lang.String	toSingularForm(java.lang.String str)
static boolean	wildcardMatch(java.lang.String wildcard, java.lang.String string)	Pattern matches the string using ? to indicate any one single value and * to indicate any 0-n multiple value
static java.lang.String	wildcardToRegex(java.lang.String wildcard)	Converts a * and ? wildcard style patterns into regex style pattern
static void	write(java.io.File file, java.lang.String text)	Write the string value to a file
static void	write(java.lang.String file, java.lang.String text)	Convenience overloading of write(File, String)

Methods inherited from class java.lang.Object

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

Constructor Detail

Utils

public Utils()

Method Detail

equal

public static boolean equal(java.lang.Object obj1,
                            java.lang.Object obj2)

A null safe loose equality checker.

Parameters:

obj1 - an object

obj2 - an object to compare to obj1

Returns:

true when args are strictly equal or toString equal

in

public static boolean in(java.lang.Object toFind,
                         java.lang.Object... values)

Checks to see if toFind is in values array using loose equality checking

Parameters:

toFind - the object to find

values - where to try and find it

Returns:

true if toFind is loosely equal to any of values

empty

public static boolean empty(java.lang.Object... arr)

Parameters:

arr - an array of objects to check and see if any are not empty

Returns:

false if any args are not null with a null safe toString().trim().length() @gt; 0

first

public static java.lang.Object first(java.util.List list)

last

public static java.lang.Object last(java.util.List list)

add

public static <T extends java.util.Collection> T add(T collection,
                                                     java.lang.Object... items)

Fluent override of Collections.addAll()

Type Parameters:

T - a subclass of Collection

Parameters:

collection - the collection to add items to

items - the items to add

Returns:

the collection passed in

See Also:

Collections.addAll(Collection, Object[])

endsWith

public static boolean endsWith(java.lang.CharSequence seq,
                               java.lang.String end)

String.endsWith surrogate for StringBuffer and StringBuilder

Parameters:

seq - the string to check

end - the ending to check for

Returns:

true if seq ends with end

startsWith

public static boolean startsWith(java.lang.CharSequence seq,
                                 java.lang.String start)

String.startsWith surrogate for StringBuffer and StringBuilder

Parameters:

seq - the string to check

start - the starting substring to check for

Returns:

true if seq ends with end

implode

public static java.lang.String implode(java.lang.String glue,
                                       java.lang.Object... pieces)

Concatenates non empty pieces separated by glue and intelligently flattens collections.

Parameters:

glue - the joining string

pieces - the pieces to join

Returns:

a concatenation of pieces separated by glue

explode

public static java.util.List<java.lang.String> explode(java.lang.String delimiter,
                                                       java.lang.String... pieces)

Similar to String.split but trims whitespace and excludes empty strings

Parameters:

delimiter - the split delimiter

pieces - the strings to split

Returns:

all non empty strings from all pieces

split

public static java.util.List<java.lang.String> split(java.lang.String string,
                                                     char splitOn,
                                                     char... quoteChars)

Breaks the string on splitOn but not when inside a quoteChars quoted string.

Parameters:

string - the string to split

splitOn - the character to split on

quoteChars - quote chars that invalidate the instance of slit char

Returns:

the split parts

substringBefore

public static java.lang.String substringBefore(java.lang.String string,
                                               java.lang.String breakBefore)

substringAfter

public static java.lang.String substringAfter(java.lang.String string,
                                              java.lang.String breakAfterLast)

ex

public static java.lang.RuntimeException ex(java.lang.Throwable ex)

ex

public static java.lang.RuntimeException ex(java.lang.String messageFormat,
                                            java.lang.Object... args)

ex

public static java.lang.RuntimeException ex(java.lang.Throwable cause,
                                            java.lang.String messageFormat,
                                            java.lang.Object... args)

format

public static java.lang.String format(java.lang.String format,
                                      java.lang.Object... args)

A heroically forgiving message string formatter.

This method attempts to safely toString all of the args and replaces any "{}" characters with "%s" before formatting via String.format(String, Object[]).

Any Throwables in the args list will have their short cause string appended to the end of the formatted message.

If the format is invalid or contains too few or too many args, the method will make sure that all arg toStrings are in the output.

The goal here is to make sure that no matter what happens, you will get something useful out of this message if not exactly to the format spec.

Parameters:

format - a string containing "{}" arg placeholders of formatted per java.util.Formatter

args - objects that will be replaced into their format placeholders.

Returns:

the formatted string

addToMap

public static java.util.Map addToMap(java.util.Map map,
                                     java.lang.Object... keyValuePairs)

asList

public static java.util.ArrayList asList(java.lang.Object... objects)

Similar to Arrays.asList but with raw ArrayList return type assuming that all objects don't have to be the same type.

Parameters:

objects - the objects to add

Returns:

a new ArrayList containing objects

asSet

public static java.util.HashSet asSet(java.lang.Object... objects)

Similar to Arrays.asList but returning a raw HashSet assuming that all objects don't have to be the same type.

Parameters:

objects - the objects to add

Returns:

a new HashSet containing objects

asMap

public static java.util.LinkedHashMap asMap(java.lang.Object... keyValuePairs)

Adds each even and old object as a key/value pair to a HashMap

Parameters:

keyValuePairs - a list of key/value pairs that should have an even number of elements

Returns:

a new HashMap containing keyValuePairs

disjunction

public static java.util.Set disjunction(java.util.Collection a,
                                        java.util.Collection b)

Returns the items of 'a' that are not in 'b' and the items of 'b' that are not in 'a'.

replaceVars

public static java.lang.String replaceVars(java.lang.String string,
                                           java.util.Map<java.lang.String,java.lang.Object> replacements)

Replaces '{mapKeyName}' with 'mapValue' in the supplied string.

Parameters:

string -

replacements -

Returns:

containsToken

public static boolean containsToken(java.lang.String findThisToken,
                                    java.lang.String inThisString)

Checks for a whole word case insensitive match of findThisToken in inThisString

https://www.baeldung.com/java-regexp-escape-char https://stackoverflow.com/questions/7459263/regex-whole-word

Parameters:

findThisToken - the string to find

inThisString - in this other string

Returns:

true if findThisToken exists as a whole world in inThisString

filter

public static <M extends java.util.Map<java.lang.String,?>> M filter(M map,
                                                                           java.lang.String... tokensToRemove)

Removes any keys that contain a whole word token contained in tokensToRemove

Type Parameters:

M -

Parameters:

map -

tokensToRemove -

Returns:

the same map instance, filtered

dequote

public static java.lang.String dequote(java.lang.String str)

Removes all matching pairs of '"` characters from the start and end of a string.

Parameters:

str - the string to dequote

Returns:

str with matched pairs of leading/trailing '"` characters removed

dequote

public static java.lang.String dequote(java.lang.String str,
                                       char[] quoteChars)

Removes all matching pairs of leading/trailing quoteChars from the start and end of a string.

Parameters:

str - the string to dequote

quoteChars - characters to treat as quotes

Returns:

str with matched pairs of leading/trailing quoteChars removed

toDollarAmount

public static java.math.BigDecimal toDollarAmount(double amount)

Turns a double value into a rounded double with 2 digits of precision 12.3334 -@gt; 12.33 23.0 -@gt; 23.00 45.677 -@gt; 45.68

Parameters:

amount - the amount to round

Returns:

the amount rounded to two decimal places

roundUp

public static int roundUp(int num,
                          int divisor)

atob

public static boolean atob(java.lang.Object str)

Converst a string to a boolean.

Easier and null safe way to call Boolean.parseBoolean(str.trim()) that swallows exceptions.

Parameters:

str - the string to parse as a boolean

Returns:

true if the trimmed lower case str is "0" or "false"

atoi

public static int atoi(java.lang.Object str)

Convert a string to an integer.

Easier null safe way to call Integer.parseInt(str.trim()) that swallows exceptions.

Parameters:

str - the string to parse

Returns:

the parsed value or -1 if the string does not parse

atol

public static long atol(java.lang.Object str)

Convert a string to a long.

Easier null safe way to call Long.parseLong(str.trim()) that swallows exceptions.

Parameters:

str - the string to parse

Returns:

the parsed value or -1 if the string does not parse

atof

public static float atof(java.lang.Object str)

Convert a string to a float.

Easier null safe way to call Float.parseFloat(str.trim()) that swallows exceptions.

Parameters:

str - the string to parse

Returns:

the parsed value or -1 if the string does not parse

atod

public static double atod(java.lang.Object str)

Convert a string to a double.

Easier null safe way to call Double.parseDouble(str.trim()) that swallows exceptions.

Parameters:

str - the string to parse

Returns:

the parsed value or -1 if the string does not parse

slugify

public static java.lang.String slugify(java.lang.String str)

Creates a lowercase url safe string.

Parameters:

str - the string to slugify

Returns:

the slugified string

sha1

public static java.lang.String sha1(byte[] bytes)

Parameters:

bytes - the bytes to hash

Returns:

Hash the bytes with SHA-1

md5

public static java.lang.String md5(byte[] bytes)

Parameters:

bytes - the bytes to hash

Returns:

Hash the bytes with MD5

hash

public static java.lang.String hash(byte[] bytes,
                                    java.lang.String algorithm)

Parameters:

bytes - the bytes to hash

algorithm - the hash algorithm

Returns:

Hash the bytes with the given algorithm

time

public static long time()

Less typing to call System.currentTimeMillis()

Returns:

the current time in milliseconds

parseIso8601

public static java.util.Date parseIso8601(java.lang.String date)

formatIso8601

public static java.lang.String formatIso8601(java.util.Date date)

formatDate

public static java.lang.String formatDate(java.util.Date date,
                                          java.lang.String format)

Simple one liner to avoid verbosity of using SimpleDateFormat

Parameters:

date - the date to format

format - the format

Returns:

the formatted date

date

public static java.util.Date date(java.lang.String date,
                                  java.lang.String format)

Faster way to apply a SimpleDateFormat without having to catch ParseException

Parameters:

date - the date string to format

format - the format string

Returns:

the formatted date

date

public static java.util.Date date(java.lang.String date)

Attempts to parse a date with several usual formats.

Formats attempted:

1. an ISO8601 data
2. EEE MMM dd HH:mm:ss zzz yyyy
3. then yyyy-MM-dd
4. then MM/dd/yy
5. then MM/dd/yyyy
6. then yyyyMMdd

Parameters:

date - the date string to parse

Returns:

the parsed date

testCompare

public static boolean testCompare(java.lang.String expected,
                                  java.lang.String actual)

getCause

public static java.lang.Throwable getCause(java.lang.Throwable t)

Tries to unwrap nested exceptions looking for the root cause

Parameters:

t - the error to investigate

Returns:

the recursively root cause

error

public static void error(java.lang.String message)
                  throws java.lang.RuntimeException

Shortcut for throw new RuntimeException(message);

Parameters:

message - the error message

Throws:

java.lang.RuntimeException - always

rethrow

public static void rethrow(java.lang.Throwable error)
                    throws java.lang.RuntimeException

Throws the root cause of error as a RuntimeException

Parameters:

error - error to rethrow

Throws:

java.lang.RuntimeException - always

rethrow

public static void rethrow(java.lang.String message,
                           java.lang.Throwable error)
                    throws java.lang.RuntimeException

Throws the root cause of e as a RuntimeException

Parameters:

message - the optional message to include in the RuntimeException

error - the error to rethrow

Throws:

java.lang.RuntimeException - always

sleep

public static void sleep(long milliseconds)
                  throws java.lang.RuntimeException

Easy way to call Thread.sleep(long) without worrying about try/catch for InterruptedException

Parameters:

milliseconds - the number of milliseconds to sleep

Throws:

java.lang.RuntimeException - if InterruptedException is thrown

getShortCause

public static java.lang.String getShortCause(java.lang.Throwable t)

getShortCause

public static java.lang.String getShortCause(java.lang.Throwable t,
                                             int lines)

getStackTraceLines

public static java.util.List<java.lang.String> getStackTraceLines(java.lang.Throwable stackTrace)

getStackTraceString

public static java.lang.String getStackTraceString(java.lang.Throwable stackTrace)

splitLines

public static java.lang.String[] splitLines(java.lang.String text)

limitLines

public static java.lang.String limitLines(java.lang.String text,
                                          int limit)

checkSame

public static boolean checkSame(java.lang.String str1,
                                java.lang.String str2)

cast

public static java.lang.Object cast(java.lang.Class clazz,
                                    java.lang.String string)

getField

public static java.lang.reflect.Field getField(java.lang.String fieldName,
                                               java.lang.Class clazz)

Searches the inheritance hierarchy for a field with the the given name and makes sure it is settable via Field.setAccessible().

Parameters:

fieldName - the field to find

clazz - the class to find it in

Returns:

the first Field found with name

getFields

public static java.util.List<java.lang.reflect.Field> getFields(java.lang.Class clazz)

Gets all the fields from from all classes in the inheritance hierarchy EXCEPT for any class who's packages starts with "java*".

Parameters:

clazz - the class to search

Returns:

all Fields in the inheritance hierarchy other "java*" packages classes.

getMethod

public static java.lang.reflect.Method getMethod(java.lang.Class clazz,
                                                 java.lang.String name)

Searches the inheritance hierarchy for the first method of the given name (ignores case).

No distinction is made for overloaded method names.

Parameters:

clazz - the class to search

name - the name of a method to find

Returns:

the first method with name

getProperty

public static java.lang.Object getProperty(java.lang.String name,
                                           java.lang.Object object)

Tries to find a bean property getter then defaults to returning the Field value

Parameters:

name - the bean property value to find

object - the object to find it in

Returns:

the value of the bean property with name

read

public static java.lang.String read(java.lang.Object caller,
                                    java.lang.String fileOrUrl)

Finds an input stream for fileOrUrl and reads it into a string

Parameters:

fileOrUrl - the resource to read

Returns:

the content of code as a String

See Also:

findInputStream(Object, String)

read

public static java.lang.String read(java.io.InputStream in)
                             throws java.lang.RuntimeException

Read all of the stream to a string and close the stream.

Parameters:

in - the data to stringify

Returns:

the data from in as a string

Throws:

java.lang.RuntimeException - when an IOException is thrown

read

public static java.lang.String read(java.io.File file)
                             throws java.io.IOException

Read the contents of a file to a string

Parameters:

file - the file to read and stringify

Returns:

the file text

Throws:

java.io.IOException - when an IOException is thrown

See Also:

read(InputStream)

write

public static void write(java.io.File file,
                         java.lang.String text)
                  throws java.io.IOException

Write the string value to a file

Parameters:

file - the file to write

text - the content to write

Throws:

java.io.IOException - if unable to create the parent directory or when IO fails

write

public static void write(java.lang.String file,
                         java.lang.String text)
                  throws java.io.IOException

Convenience overloading of write(File, String)

Parameters:

file - the file path to write

text - the text to write to the file

Throws:

java.io.IOException - when thrown

See Also:

write(File, String)

pipe

public static void pipe(java.io.InputStream in,
                        java.io.OutputStream out)
                 throws java.io.IOException

Copy all data from src to dst and close the streams

Parameters:

in - the data to be written

out - where the data should be written to

Throws:

java.io.IOException - when thrown

pipe

public static void pipe(java.io.InputStream in,
                        java.io.OutputStream out,
                        boolean closeInputStream,
                        boolean closeOutputStream)
                 throws java.io.IOException

Throws:

java.io.IOException

createTempFile

public static java.io.File createTempFile(java.lang.String fileName)
                                   throws java.io.IOException

Throws:

java.io.IOException

findInputStream

public static java.io.InputStream findInputStream(java.lang.Object caller,
                                                  java.lang.String fileOrUrl)
                                           throws java.lang.RuntimeException

Attempts to locate the stream as a file, url, or classpath resource

Parameters:

fileOrUrl - a stream resource identifier

Returns:

an input stream reading fileOrUrl

Throws:

java.lang.RuntimeException - when and IOException is thrown

isRegex

public static boolean isRegex(java.lang.String string)

Checks string for wildcard control characters.

Parameters:

string -

Returns:

true when string contains a regex control character

isWildcard

public static boolean isWildcard(java.lang.String str)

Parameters:

str - the string to chec to see if it is a wildcard pattern.

Returns:

true if the string contains a * or a ?

wildcardMatch

public static boolean wildcardMatch(java.lang.String wildcard,
                                    java.lang.String string)

Pattern matches the string using ? to indicate any one single value and * to indicate any 0-n multiple value

Parameters:

wildcard - a wildcard pattern

string - the string to check to see if it matches the wildcard

Returns:

true if string matches wildcard

wildcardToRegex

public static java.lang.String wildcardToRegex(java.lang.String wildcard)

Converts a * and ? wildcard style patterns into regex style pattern

Parameters:

wildcard - the wildcard expression to convert to a regex

Returns:

a wildcard pattern converted to a regex

See Also:

Code example found here

parseQueryString

public static java.util.LinkedHashMap<java.lang.String,java.lang.String> parseQueryString(java.lang.String query)

findSysEnvProp

public static java.lang.String findSysEnvProp(java.lang.String... names)

getSysEnvProp

public static java.lang.String getSysEnvProp(java.lang.String name,
                                             java.lang.String defaultValue)

getSysEnvProp

public static java.lang.String getSysEnvProp(java.lang.String name)

close

public static void close(java.lang.Object... toClose)

Utility to call a close() method on supplied objects if it exists and completely ignore any exceptions.

Parameters:

toClose - the object to close.

toSingularForm

public static java.lang.String toSingularForm(java.lang.String str)

toPluralForm

public static java.lang.String toPluralForm(java.lang.String str)

capitalize

public static java.lang.String capitalize(java.lang.String str)

bytesToHex

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

hexToBytes

public static byte[] hexToBytes(java.lang.String hexString)

beautifyName

public static java.lang.String beautifyName(java.lang.String name)

Try to make an attractive camelCase valid javascript variable name.

Lots of sql db designers use things like SNAKE_CASE_COLUMN_NAMES that look terrible as json property names.

Parameters:

name - the to beautify

Returns:

a camelCased version of name

See Also:

JSON property name

printTable

public static java.lang.String printTable(java.util.List<java.util.List> table)

pad

public static java.lang.String pad(java.lang.String input,
                                   int len)