org.rapidoid.util

Class U

java.lang.Object

org.rapidoid.util.U

public class U
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected static String[]	ARGS
static LogLevel	DEBUG
static LogLevel	ERROR
static LogLevel	INFO
protected static LogLevel	LOG_LEVEL
protected static Random	RND
static LogLevel	SEVERE
static LogLevel	TRACE
static LogLevel	WARN

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	areAssignable(Class<?>[] types, Object[] values)
static void	args(String... args)
static <T> T[]	array(T... items)
static <K,V> Map<K,V>	autoExpandingMap(Class<V> clazz)
static <K,V> Map<K,V>	autoExpandingMap(Mapper<K,V> valueFactory)
static void	benchmark(String name, int count, Runnable runnable)
static void	benchmarkComplete(String name, int count, long startTime)
static void	benchmarkMT(int threadsN, String name, int count, CountDownLatch outsideLatch, Runnable runnable)
static void	benchmarkMT(int threadsN, String name, int count, Runnable runnable)
static ByteBuffer	buf(String s)
static String	buf2str(ByteBuffer buf)
static String	bytesToString(byte[] bytes)
static String	camelPhrase(String s)
static String	camelSplit(String s)
static String	capitalized(String s)
static byte[]	classBytes(String fullClassName)
static ClassLoader	classLoader()
static void	classpath(String packageName, Collection<File> files, Predicate<File> filter)
static List<File>	classpath(String packageName, Predicate<File> filter)
static List<Class<?>>	classpathClasses(String packageName, String nameRegex, Predicate<Class<?>> filter, ClassLoader classLoader)
static List<Class<?>>	classpathClassesByName(String simpleName, Predicate<Class<?>> filter, ClassLoader classLoader)
static List<Class<?>>	classpathClassesBySuffix(String nameSuffix, Predicate<Class<?>> filter, ClassLoader classLoader)
static void	close(InputStream in, boolean quiet)
static void	close(OutputStream out, boolean quiet)
static <K,V> ConcurrentMap<K,V>	concurrentMap()
static String	config(String name)
static boolean	contains(Object arrOrColl, Object value)
static String	copyNtimes(String s, int n)
static int	cpus()
static void	debug(String msg)
static void	debug(String msg, String key, Object value)
static void	debug(String msg, String key1, Object value1, String key2, Object value2)
static void	debug(String msg, String key1, Object value1, String key2, Object value2, String key3, Object value3)
static void	delete(String filename)
static void	endMeasure()
static void	endMeasure(String info)
static boolean	eq(Object a, Object b)
static void	error(String msg)
static void	error(String msg, String key, Object value)
static void	error(String msg, String key1, Object value1, String key2, Object value2)
static void	error(String msg, String key1, Object value1, String key2, Object value2, String key3, Object value3)
static void	error(String msg, Throwable error)
static void	error(Throwable error)
static <FROM,TO> TO	eval(Mapper<FROM,TO> mapper, FROM src)
static <T> boolean	eval(Predicate<T> predicate, T target)
static Object	exclude(Object arrOrColl, Object item)
static ByteBuffer	expand(ByteBuffer buf)
static ByteBuffer	expand(ByteBuffer buf, int newSize)
static <T> T[]	expand(T[] arr, int factor)
static <T> T[]	expand(T[] arr, T item)
static void	failIf(boolean failureCondition, String msg)
static void	failIf(boolean failureCondition, String msg, Object... args)
static File	file(String filename)
static String	fillIn(String template, String placeholder, String value)
static String	format(String s, Object... args)
static Class<?>	getClassIfExists(String className)
static String	getCpuMemStats()
static LogLevel	getLogLevel()
static boolean	hasOption(String name)
static Object	hook(String hookName)
static IllegalArgumentException	illegalArg(String message)
static Object	include(Object arrOrColl, Object item)
static void	info(String msg)
static void	info(String msg, String key, Object value)
static void	info(String msg, String key1, Object value1, String key2, Object value2)
static void	info(String msg, String key1, Object value1, String key2, Object value2, String key3, Object value3)
static boolean	instanceOf(Object obj, Class<?>... classes)
static boolean	isEmpty(String value)
static boolean	isJREClass(String canonicalClassName)
static String	join(String sep, char[][] items)
static String	join(String sep, Iterable<?> items)
static String	join(String sep, Object... items)
static void	joinThread(Thread thread)
static <T> List<T>	list(T... values)
static String	load(String filename)
static byte[]	loadBytes(InputStream input)
static byte[]	loadBytes(String filename)
static List<String>	loadLines(String filename)
static List<String>	loadLines(String filename, boolean filterEmpty, String commentPrefix)
static <K,V> Map<K,V>	map()
static <K,V> Map<K,V>	map(K key, V value)
static <K,V> Map<K,V>	map(K key1, V value1, K key2, V value2)
static <K,V> Map<K,V>	map(K key1, V value1, K key2, V value2, K key3, V value3)
static <K,V> Map<K,V>	map(K key1, V value1, K key2, V value2, K key3, V value3, K key4, V value4)
static <FROM,TO> Mapper<FROM,TO>	mapper(Map<FROM,TO> map)
static String	md5(byte[] bytes)
static String	md5(String data)
static boolean	micro()
static String	mid(String s, int beginIndex, int endIndex)
static MappedByteBuffer	mmap(String filename, FileChannel.MapMode mode)
static MappedByteBuffer	mmap(String filename, FileChannel.MapMode mode, long position, long size)
static String	mul(String s, int n)
static boolean	must(boolean expectedCondition)
static boolean	must(boolean expectedCondition, String message)
static boolean	must(boolean expectedCondition, String message, long arg)
static boolean	must(boolean expectedCondition, String message, Object arg)
static boolean	must(boolean expectedCondition, String message, Object arg1, Object arg2)
static <T> T	newInstance(Class<T> clazz)
static <T> T	newInstance(Class<T> clazz, Object... args)
static RuntimeException	notExpected()
static <T> T	notNull(T value, String desc, Object... descArgs)
static void	notNullAll(Object... items)
static RuntimeException	notReady()
static RuntimeException	notSupported()
static int	num(String s)
static double	option(String name, double defaultValue)
static int	option(String name, int defaultValue)
static String	option(String name, String defaultValue)
static long	optionL(String name, long defaultValue)
static <T> T	or(T value, T fallback)
static void	print(Object value)
static void	printAll(Collection<?> collection)
static boolean	production()
static <T> Queue<T>	queue(int maxSize)
static String	render(Iterable<?> items, String itemFormat, String sep)
static String	render(Object[] items, String itemFormat, String sep)
static String	replace(String s, String regex, Mapper<String[],String> replacer)
static String	replaceText(String s, String[][] repls)
static URL	resource(String filename)
static int	rnd()
static int	rnd(int n)
static <T> T	rnd(T[] arr)
static char	rndChar()
static int	rndExcept(int n, int except)
static long	rndL()
static String	rndStr(int length)
static String	rndStr(int minLength, int maxLength)
static RuntimeException	rte(String message)
static RuntimeException	rte(String message, Object... args)
static RuntimeException	rte(String message, Throwable cause)
static RuntimeException	rte(String message, Throwable cause, Object... args)
static RuntimeException	rte(Throwable cause)
static void	save(String filename, String content)
static void	schedule(Runnable task, long delay)
static void	secure(boolean condition, String msg, Object arg)
static void	secure(boolean condition, String msg, Object arg1, Object arg2)
static <T> Set<T>	set(T... values)
static void	setLogLevel(LogLevel logLevel)
static void	setLogOutput(Appendable logOutput)
static void	severe(String msg)
static void	severe(String msg, String key, Object value)
static void	severe(String msg, String key1, Object value1, String key2, Object value2)
static void	severe(String msg, String key1, Object value1, String key2, Object value2, String key3, Object value3)
static void	severe(String msg, Throwable error)
static void	show(Object... values)
static void	sleep(long millis)
static void	startMeasure()
static <T> T[]	subarray(T[] arr, int from, int to)
static String	text(Collection<Object> coll)
static String	text(Iterator<?> it)
static String	text(Object obj)
static String	text(Object[] objs)
static String	textln(Object[] objs)
static long	time()
static void	trace(String msg)
static void	trace(String msg, String key, Object value)
static void	trace(String msg, String key1, Object value1, String key2, Object value2)
static void	trace(String msg, String key1, Object value1, String key2, Object value2, String key3, Object value3)
static String	urlDecode(String value)
static void	waitFor(Object obj)
static boolean	waitInterruption(long millis)
static void	warn(String msg)
static void	warn(String msg, String key, Object value)
static void	warn(String msg, String key1, Object value1, String key2, Object value2)
static void	warn(String msg, String key1, Object value1, String key2, Object value2, String key3, Object value3)
static void	warn(String msg, Throwable error)
static boolean	xor(boolean a, boolean b)

Methods inherited from class java.lang.Object

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

Field Detail

TRACE

public static final LogLevel TRACE

DEBUG

public static final LogLevel DEBUG

INFO

public static final LogLevel INFO

WARN

public static final LogLevel WARN

ERROR

public static final LogLevel ERROR

SEVERE

public static final LogLevel SEVERE

LOG_LEVEL

protected static LogLevel LOG_LEVEL

RND

protected static final Random RND

ARGS

protected static String[] ARGS

Method Detail

setLogLevel

public static void setLogLevel(LogLevel logLevel)

getLogLevel

public static LogLevel getLogLevel()

setLogOutput

public static void setLogOutput(Appendable logOutput)

trace

public static void trace(String msg)

trace

public static void trace(String msg,
         String key,
         Object value)

trace

public static void trace(String msg,
         String key1,
         Object value1,
         String key2,
         Object value2)

trace

public static void trace(String msg,
         String key1,
         Object value1,
         String key2,
         Object value2,
         String key3,
         Object value3)

debug

public static void debug(String msg)

debug

public static void debug(String msg,
         String key,
         Object value)

debug

public static void debug(String msg,
         String key1,
         Object value1,
         String key2,
         Object value2)

debug

public static void debug(String msg,
         String key1,
         Object value1,
         String key2,
         Object value2,
         String key3,
         Object value3)

info

public static void info(String msg)

info

public static void info(String msg,
        String key,
        Object value)

info

public static void info(String msg,
        String key1,
        Object value1,
        String key2,
        Object value2)

info

public static void info(String msg,
        String key1,
        Object value1,
        String key2,
        Object value2,
        String key3,
        Object value3)

warn

public static void warn(String msg)

warn

public static void warn(String msg,
        String key,
        Object value)

warn

public static void warn(String msg,
        String key1,
        Object value1,
        String key2,
        Object value2)

warn

public static void warn(String msg,
        String key1,
        Object value1,
        String key2,
        Object value2,
        String key3,
        Object value3)

warn

public static void warn(String msg,
        Throwable error)

error

public static void error(String msg)

error

public static void error(String msg,
         String key,
         Object value)

error

public static void error(String msg,
         String key1,
         Object value1,
         String key2,
         Object value2)

error

public static void error(String msg,
         String key1,
         Object value1,
         String key2,
         Object value2,
         String key3,
         Object value3)

error

public static void error(String msg,
         Throwable error)

error

public static void error(Throwable error)

severe

public static void severe(String msg)

severe

public static void severe(String msg,
          String key,
          Object value)

severe

public static void severe(String msg,
          String key1,
          Object value1,
          String key2,
          Object value2)

severe

public static void severe(String msg,
          String key1,
          Object value1,
          String key2,
          Object value2,
          String key3,
          Object value3)

severe

public static void severe(String msg,
          Throwable error)

text

public static String text(Object obj)

text

public static String text(Object[] objs)

rte

public static RuntimeException rte(String message,
                   Object... args)

rte

public static RuntimeException rte(Throwable cause)

rte

public static RuntimeException rte(String message)

notExpected

public static RuntimeException notExpected()

illegalArg

public static IllegalArgumentException illegalArg(String message)

newInstance

public static <T> T newInstance(Class<T> clazz)

newInstance

public static <T> T newInstance(Class<T> clazz,
                Object... args)

areAssignable

public static boolean areAssignable(Class<?>[] types,
                    Object[] values)

or

public static <T> T or(T value,
       T fallback)

format

public static String format(String s,
            Object... args)

sleep

public static void sleep(long millis)

waitInterruption

public static boolean waitInterruption(long millis)

waitFor

public static void waitFor(Object obj)

joinThread

public static void joinThread(Thread thread)

text

public static String text(Collection<Object> coll)

text

public static String text(Iterator<?> it)

textln

public static String textln(Object[] objs)

replaceText

public static String replaceText(String s,
                 String[][] repls)

join

public static String join(String sep,
          Object... items)

join

public static String join(String sep,
          Iterable<?> items)

join

public static String join(String sep,
          char[][] items)

render

public static String render(Object[] items,
            String itemFormat,
            String sep)

render

public static String render(Iterable<?> items,
            String itemFormat,
            String sep)

array

public static <T> T[] array(T... items)

set

public static <T> Set<T> set(T... values)

list

public static <T> List<T> list(T... values)

map

public static <K,V> Map<K,V> map()

map

public static <K,V> Map<K,V> map(K key,
                 V value)

map

public static <K,V> Map<K,V> map(K key1,
                 V value1,
                 K key2,
                 V value2)

map

public static <K,V> Map<K,V> map(K key1,
                 V value1,
                 K key2,
                 V value2,
                 K key3,
                 V value3)

map

public static <K,V> Map<K,V> map(K key1,
                 V value1,
                 K key2,
                 V value2,
                 K key3,
                 V value3,
                 K key4,
                 V value4)

concurrentMap

public static <K,V> ConcurrentMap<K,V> concurrentMap()

autoExpandingMap

public static <K,V> Map<K,V> autoExpandingMap(Class<V> clazz)

autoExpandingMap

public static <K,V> Map<K,V> autoExpandingMap(Mapper<K,V> valueFactory)

queue

public static <T> Queue<T> queue(int maxSize)

mapper

public static <FROM,TO> Mapper<FROM,TO> mapper(Map<FROM,TO> map)

resource

public static URL resource(String filename)

classLoader

public static ClassLoader classLoader()

file

public static File file(String filename)

time

public static long time()

xor

public static boolean xor(boolean a,
          boolean b)

eq

public static boolean eq(Object a,
         Object b)

failIf

public static void failIf(boolean failureCondition,
          String msg)

failIf

public static void failIf(boolean failureCondition,
          String msg,
          Object... args)

loadBytes

public static byte[] loadBytes(InputStream input)

loadBytes

public static byte[] loadBytes(String filename)

classBytes

public static byte[] classBytes(String fullClassName)

load

public static String load(String filename)

loadLines

public static List<String> loadLines(String filename)

loadLines

public static List<String> loadLines(String filename,
                     boolean filterEmpty,
                     String commentPrefix)

save

public static void save(String filename,
        String content)

close

public static void close(OutputStream out,
         boolean quiet)

close

public static void close(InputStream in,
         boolean quiet)

delete

public static void delete(String filename)

expand

public static <T> T[] expand(T[] arr,
             int factor)

expand

public static <T> T[] expand(T[] arr,
             T item)

subarray

public static <T> T[] subarray(T[] arr,
               int from,
               int to)

must

public static boolean must(boolean expectedCondition,
           String message)

copyNtimes

public static String copyNtimes(String s,
                int n)

rte

public static RuntimeException rte(String message,
                   Throwable cause,
                   Object... args)

rte

public static RuntimeException rte(String message,
                   Throwable cause)

must

public static boolean must(boolean expectedCondition)

must

public static boolean must(boolean expectedCondition,
           String message,
           long arg)

must

public static boolean must(boolean expectedCondition,
           String message,
           Object arg)

must

public static boolean must(boolean expectedCondition,
           String message,
           Object arg1,
           Object arg2)

secure

public static void secure(boolean condition,
          String msg,
          Object arg)

secure

public static void secure(boolean condition,
          String msg,
          Object arg1,
          Object arg2)

notNullAll

public static void notNullAll(Object... items)

notNull

public static <T> T notNull(T value,
            String desc,
            Object... descArgs)

notReady

public static RuntimeException notReady()

notSupported

public static RuntimeException notSupported()

show

public static void show(Object... values)

schedule

public static void schedule(Runnable task,
            long delay)

startMeasure

public static void startMeasure()

endMeasure

public static void endMeasure()

endMeasure

public static void endMeasure(String info)

print

public static void print(Object value)

printAll

public static void printAll(Collection<?> collection)

hasOption

public static boolean hasOption(String name)

option

public static String option(String name,
            String defaultValue)

option

public static int option(String name,
         int defaultValue)

optionL

public static long optionL(String name,
           long defaultValue)

option

public static double option(String name,
            double defaultValue)

cpus

public static int cpus()

micro

public static boolean micro()

isEmpty

public static boolean isEmpty(String value)

capitalized

public static String capitalized(String s)

mid

public static String mid(String s,
         int beginIndex,
         int endIndex)

urlDecode

public static String urlDecode(String value)

mul

public static String mul(String s,
         int n)

num

public static int num(String s)

bytesToString

public static String bytesToString(byte[] bytes)

md5

public static String md5(byte[] bytes)

md5

public static String md5(String data)

rndChar

public static char rndChar()

rndStr

public static String rndStr(int length)

rndStr

public static String rndStr(int minLength,
            int maxLength)

rnd

public static int rnd(int n)

rndExcept

public static int rndExcept(int n,
            int except)

rnd

public static <T> T rnd(T[] arr)

rnd

public static int rnd()

rndL

public static long rndL()

mmap

public static MappedByteBuffer mmap(String filename,
                    FileChannel.MapMode mode,
                    long position,
                    long size)

mmap

public static MappedByteBuffer mmap(String filename,
                    FileChannel.MapMode mode)

getClassIfExists

public static Class<?> getClassIfExists(String className)

production

public static boolean production()

config

public static String config(String name)

fillIn

public static String fillIn(String template,
            String placeholder,
            String value)

expand

public static ByteBuffer expand(ByteBuffer buf,
                int newSize)

expand

public static ByteBuffer expand(ByteBuffer buf)

buf2str

public static String buf2str(ByteBuffer buf)

buf

public static ByteBuffer buf(String s)

args

public static void args(String... args)

hook

public static Object hook(String hookName)

benchmark

public static void benchmark(String name,
             int count,
             Runnable runnable)

benchmarkComplete

public static void benchmarkComplete(String name,
                     int count,
                     long startTime)

benchmarkMT

public static void benchmarkMT(int threadsN,
               String name,
               int count,
               CountDownLatch outsideLatch,
               Runnable runnable)

benchmarkMT

public static void benchmarkMT(int threadsN,
               String name,
               int count,
               Runnable runnable)

getCpuMemStats

public static String getCpuMemStats()

replace

public static String replace(String s,
             String regex,
             Mapper<String[],String> replacer)

eval

public static <T> boolean eval(Predicate<T> predicate,
               T target)

eval

public static <FROM,TO> TO eval(Mapper<FROM,TO> mapper,
                FROM src)

classpathClasses

public static List<Class<?>> classpathClasses(String packageName,
                              String nameRegex,
                              Predicate<Class<?>> filter,
                              ClassLoader classLoader)

classpathClassesByName

public static List<Class<?>> classpathClassesByName(String simpleName,
                                    Predicate<Class<?>> filter,
                                    ClassLoader classLoader)

classpathClassesBySuffix

public static List<Class<?>> classpathClassesBySuffix(String nameSuffix,
                                      Predicate<Class<?>> filter,
                                      ClassLoader classLoader)

classpath

public static List<File> classpath(String packageName,
                   Predicate<File> filter)

classpath

public static void classpath(String packageName,
             Collection<File> files,
             Predicate<File> filter)

isJREClass

public static boolean isJREClass(String canonicalClassName)

instanceOf

public static boolean instanceOf(Object obj,
                 Class<?>... classes)

contains

public static boolean contains(Object arrOrColl,
               Object value)

include

public static Object include(Object arrOrColl,
             Object item)

exclude

public static Object exclude(Object arrOrColl,
             Object item)

camelSplit

public static String camelSplit(String s)

camelPhrase

public static String camelPhrase(String s)