Common (coodex-utilities 0.5.1-RC2 API)

java.lang.Object
- org.coodex.util.Common

```
public class Common
extends Object
```
作者:

davidoff

嵌套类概要

嵌套类
限定符和类型	类和说明
`static class`	`Common.ArrayBlockRef`
`static class`	`Common.Edge`
`static class`	`Common.StringToBoolean`
`static class`	`Common.StringToFloat`
`static class`	`Common.StringToInt`
`static class`	`Common.StringToLong`

字段概要

字段
限定符和类型	字段和说明
`static String`	`DEFAULT_DATE_FORMAT`
`static String`	`DEFAULT_DATETIME_FORMAT`
`static String`	`DEFAULT_TIME_FORMAT`
`static String`	`FILE_SEPARATOR`
`static String`	`PATH_SEPARATOR`
`static int`	`PROCESSOR_COUNT`
`static Long`	`SYSTEM_START_TIME`
`static String`	`USER_DIR`

方法概要

所有方法静态方法具体方法已过时的方法
限定符和类型	方法和说明
`static <T> Set<T>`	`arrayToSet(T[] array)`
`static byte[]`	`base16Decode(String hexString)`
`static byte[]`	`base16Decode(String hexString, String ignoreChars)`
`static String`	`base16Encode(byte[] b)`
`static String`	`base16Encode(byte[] b, Function<Integer,Integer> colFunction, String split)`
`static String`	`base16Encode(byte[] b, int offset, int length)`
`static String`	`base16Encode(byte[] b, int offset, int length, Function<Integer,Integer> colFunction, String split)`
`static String`	`base16Encode(byte[] b, int offset, int length, int col, String split)`
`static String`	`base16Encode(byte[] b, int col, String split)`
`static <T extends Comparable<T>> boolean`	`between(T t, T bound1, T bound2)` 已过时。使用 `Common.Edge.between(Comparable, Comparable, Comparable)`替代
`static String`	`byte2hex(byte[] b)` 已过时。
`static String`	`byte2hex(byte[] b, int offset, int length)` 已过时。
`static String`	`byte2hex(byte[] b, int offset, int length, int col, String split)` 已过时。
`static String`	`byte2hex(byte[] b, int col, String split)` 已过时。
`static Calendar`	`calendar(int year)`
`static Calendar`	`calendar(int year, int month)`
`static Calendar`	`calendar(int year, int month, int date)`
`static Calendar`	`calendar(int year, int month, int date, int hour)`
`static Calendar`	`calendar(int year, int month, int date, int hour, int minute)`
`static Calendar`	`calendar(int year, int month, int date, int hour, int minute, int second)`
`static Calendar`	`calendar(int year, int month, int date, int hour, int minute, int second, int millisecond)`
`static String`	`calendarToStr(Calendar calendar)`
`static String`	`calendarToStr(Calendar calendar, String format)`
`static String`	`camelCase(String s)`
`static String`	`camelCase(String s, boolean firstCharUpperCase)`
`static String`	`camelCase(String s, boolean firstCharUpperCase, String delimiters)`
`static String`	`camelCase(String s, String delimiters)`
`static <T> T`	`cast(Object obj)`
`static void`	`checkNull(Object o, String msg)` 已过时。使用 `Objects.requireNonNull(Object, String)` 替代
`static String`	`concat(Collection<String> list, String split)`
`static Calendar`	`copy(Calendar calendar)`
`static <K extends Serializable,V extends Serializable> void`	`copyMap(Map<K,V> org, Map<K,V> target)`
`static void`	`copyStream(InputStream is, OutputStream os)`
`static void`	`copyStream(InputStream is, OutputStream os, int blockSize, boolean flushPerBlock, int bps)`
`static Calendar`	`dateToCalendar(Date date)`
`static String`	`dateToStr(Date date)`
`static String`	`dateToStr(Date date, String format)`
`static <T extends Serializable> T`	`deepCopy(T object)`
`static Object`	`deserialize(byte[] buf)`
`static <T> Set<T>`	`difference(Set<T> org, Set<T> todiv)` 差集 org - todiv
`static <T> int`	`findInArray(T el, T[] array)` 已过时。 `indexOf(Object[], Object)`
`static <T> void`	`forEachBlock(T[] all, int blockSize, boolean continuous, float redundancy, BiConsumer<Integer,Integer> consumer)` 对一个大数组进行分块操作
`static <T> void`	`forEachBlock(T[] all, int blockSize, boolean continuous, float redundancy, IntFunction<T[]> arrayProvider, Consumer<T[]> consumer)` 对一个大数组进行分块操作
`static <T> String`	`formatArray(T[] array, int offset, int length, Function<Integer,Integer> colFunction, String split, Function<T,String> encoder)`
`static File`	`getNewFile(String fileName)` 已过时。
`static URL`	`getResource(String resource, ClassLoader... classLoaders)`
`static DateFormat`	`getSafetyDateFormat(String format)`
`static Long`	`getSystemStart()`
`static String`	`getUUIDStr()` 已过时。
`static byte[]`	`hex2byte(String hexString)` 已过时。
`static byte[]`	`hex2byte(String hexString, String ignoreChars)` 已过时。
`static <T> boolean`	`inArray(T el, T[] array)`
`static <T> int`	`indexOf(T[] array, T t)`
`static <T> Set<T>`	`intersection(Set<T> set1, Set<T> set2)` 交集
`static boolean`	`isBlank(String s)`
`static boolean`	`isDebug()`
`static boolean`	`isEmpty(Collection<?> collection)`
`static boolean`	`isJava9AndLast()`
`static boolean`	`isWindows()`
`static <T> Set<T>`	`join(Collection<T>... sets)` 并集
`static byte[]`	`long2Bytes(long data)`
`static Calendar`	`longToCalendar(long l)`
`static String`	`longToDateStr(long l)`
`static String`	`longToDateStr(long l, String format)`
`static String`	`lowerFirstChar(String string)`
`static <T extends Comparable<T>> T`	`max(T c1, T c2, T... others)`
`static <T extends Comparable<T>> T`	`min(T c1, T c2, T... others)`
`static String`	`native2AscII(String str)`
`static File`	`newFile(String fileName)`
`static String`	`now()`
`static String`	`now(String format)`
`static String`	`nullToStr(String str)`
`static byte`	`random(byte[] range)`
`static double`	`random(double[] range)`
`static double`	`random(double min, double max)`
`static float`	`random(float[] range)`
`static int`	`random(int max)`
`static int`	`random(int[] range)`
`static int`	`random(int min, int max)`
`static long`	`random(long max)`
`static long`	`random(long[] range)`
`static long`	`random(long min, long max)`
`static short`	`random(short[] range)`
`static <T> T`	`random(T[] range)`
`static int`	`randomC(int max)`
`static int`	`randomC(int min, int max)`
`static long`	`randomC(long max)`
`static long`	`randomC(long min, long max)`
`static char`	`randomChar(String s)`
`static char`	`randomGB2312Char()` https://zh.wikipedia.org/wiki/GB_2312
`static String`	`randomStr(int min, int max, String range)`
`static RuntimeException`	`rte(Throwable th)`
`static boolean`	`sameString(String str1, String str2)` 已过时。
`static byte[]`	`serialize(Object object)`
`static String`	`sha1(String content)`
`static String`	`sha1(String content, Charset charset)`
`static double`	`similarity(String s1, String s2)`
`static void`	`sleep(long ms)`
`static <T> Collection<Common.ArrayBlockRef>`	`slice(T[] all, int blockSize, boolean continuous, float redundancy)` 将一个大数组分块
`static Calendar`	`strToCalendar(String str, String format)`
`static Date`	`strToDate(String str)`
`static Date`	`strToDate(String str, String format)`
`static <T> Map<String,T>`	`subMap(String prefix, Map<String,T> map)`
`static <T> T`	`to(String str, T value)`
`static String`	`toAbsolutePath(String path)`
`static List<String>`	`toArray(String str, String delim, List<String> v)`
`static String[]`	`toArray(String str, String delim, String[] v)`
`static String[]`	`toArray(String str, String delim, Supplier<String[]> v)`
`static boolean`	`toBool(String str, boolean v)`
`static boolean`	`toBool(String str, Supplier<Boolean> v)`
`static byte[]`	`toBytes(long l, int wide, Endianness endianness)`
`static int`	`toInt(String str, int value)`
`static int`	`toInt(String str, Supplier<Integer> valueSupplier)`
`static long`	`toLong(String str, long value)`
`static long`	`toLong(String str, Supplier<Long> value)`
`static String`	`trim(String str, char... trimChars)`
`static String`	`trim(String str, String toTrim)`
`static Calendar`	`truncate(Calendar calendar, int fromField)`
`static String`	`upperFirstChar(String string)`

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

PATH_SEPARATOR

public static final String PATH_SEPARATOR

FILE_SEPARATOR

public static final String FILE_SEPARATOR

USER_DIR
```
public static final String USER_DIR
```

DEFAULT_DATE_FORMAT

public static final String DEFAULT_DATE_FORMAT

另请参阅:: 常量字段值

DEFAULT_TIME_FORMAT

public static final String DEFAULT_TIME_FORMAT

另请参阅:: 常量字段值

DEFAULT_DATETIME_FORMAT

public static final String DEFAULT_DATETIME_FORMAT

另请参阅:: 常量字段值

SYSTEM_START_TIME

public static final Long SYSTEM_START_TIME

PROCESSOR_COUNT

public static final int PROCESSOR_COUNT

方法详细资料

isWindows
```
public static boolean isWindows()
```

toAbsolutePath

public static String toAbsolutePath(String path)

isDebug
```
public static boolean isDebug()
```

toBytes

public static byte[] toBytes(long l,
                             int wide,
                             Endianness endianness)

arrayToSet

public static <T> Set<T> arrayToSet(T[] array)

getUUIDStr
```
@Deprecated
public static String getUUIDStr()
```
已过时。

作为id时，使用IDGenerator.newId()替代
获取uuid时，使用UUIDHelper.getUUIDString()

返回:

uuid

sha1

public static String sha1(String content)

sha1

public static String sha1(String content,
                          Charset charset)

inArray

public static <T> boolean inArray(T el,
                                  T[] array)

findInArray

@Deprecated
public static <T> int findInArray(T el,
                                              T[] array)

已过时。 indexOf(Object[], Object)

nullToStr

public static String nullToStr(String str)

serialize

public static byte[] serialize(Object object)
                        throws IOException

抛出:: IOException

deserialize

public static Object deserialize(byte[] buf)
                          throws IOException,
                                 ClassNotFoundException

抛出:: IOException; ClassNotFoundException

deepCopy

public static <T extends Serializable> T deepCopy(T object)
                                           throws IOException,
                                                  ClassNotFoundException

抛出:: IOException; ClassNotFoundException

random
```
public static int random(int max)
```
参数:

max - 正整数

返回:

[0, max)的随机数

randomC
```
public static int randomC(int max)
```
参数:

max - 非负正数

返回:

[0, max]的随机数

random

public static int random(int min,
                         int max)

randomC

public static int randomC(int min,
                          int max)

random

public static long random(long min,
                          long max)

random
```
public static long random(long max)
```

randomC
```
public static long randomC(long max)
```

randomC

public static long randomC(long min,
                           long max)

random

public static double random(double min,
                            double max)

copyMap

public static <K extends Serializable,V extends Serializable> void copyMap(Map<K,V> org,
                                                                           Map<K,V> target)

isBlank

public static boolean isBlank(String s)

isEmpty

public static boolean isEmpty(Collection<?> collection)

copyStream

public static void copyStream(InputStream is,
                              OutputStream os)
                       throws IOException

抛出:: IOException

copyStream

public static void copyStream(InputStream is,
                              OutputStream os,
                              int blockSize,
                              boolean flushPerBlock,
                              int bps)
                       throws IOException

抛出:: IOException

checkNull

@Deprecated
public static void checkNull(Object o,
                                         String msg)

已过时。使用 Objects.requireNonNull(Object, String) 替代

between

@Deprecated
public static <T extends Comparable<T>> boolean between(T t,
                                                                    T bound1,
                                                                    T bound2)

已过时。使用 Common.Edge.between(Comparable, Comparable, Comparable)替代

max

@SafeVarargs
public static <T extends Comparable<T>> T max(T c1,
                                                           T c2,
                                                           T... others)

byte2hex

@Deprecated
public static String byte2hex(byte[] b)

已过时。

byte2hex

@Deprecated
public static String byte2hex(byte[] b,
                                          int offset,
                                          int length)

已过时。

byte2hex

@Deprecated
public static String byte2hex(byte[] b,
                                          int col,
                                          String split)

已过时。

byte2hex

@Deprecated
public static String byte2hex(byte[] b,
                                          int offset,
                                          int length,
                                          int col,
                                          String split)

已过时。

base16Encode
```
public static String base16Encode(byte[] b)
```
参数:

b - 需要编码的字节数组

返回:

编码后的字符串

base16Encode

public static String base16Encode(byte[] b,
                                  int offset,
                                  int length)

参数:: b - 需要编码的字节数组; offset - 编码字节数组偏移; length - 编码字节数组长度
返回:: 编码后的字符串

base16Encode
```
public static String base16Encode(byte[] b,
                                  int col,
                                  String split)
```
参数:

b - 需要编码的字节数组

col - 每个字节编码后算一列，此参数用来指定编码后每行多少列，行与行之间使用系统变量line.separator来分隔

split - 列于列之间的分隔字符传串，行首行尾不加

返回:

编码后的字符串

base16Encode
```
public static String base16Encode(byte[] b,
                                  Function<Integer,Integer> colFunction,
                                  String split)
```
参数:

b - 需要编码的字节数组

colFunction - 每个字节编码后算一列，此参数用来指定编码后各行多少列，行与行之间使用系统变量line.separator来分隔

split - 列于列之间的分隔字符传串，行首行尾不加

返回:

编码后的字符串

base16Encode
```
public static String base16Encode(byte[] b,
                                  int offset,
                                  int length,
                                  int col,
                                  String split)
```
参数:

b - 需要编码的字节数组

offset - 编码字节数组偏移

length - 编码字节数组长度

col - 每个字节编码后算一列，此参数用来指定编码后每行多少列，行与行之间使用系统变量line.separator来分隔

split - 列于列之间的分隔字符传串，行首行尾不加

返回:

编码后的字符串

base16Encode
```
public static String base16Encode(byte[] b,
                                  int offset,
                                  int length,
                                  Function<Integer,Integer> colFunction,
                                  String split)
```
参数:

b - 需要编码的字节数组

offset - 编码字节数组偏移

length - 编码字节数组长度

colFunction - 每个字节编码后算一列，此参数用来指定编码后各行多少列，行与行之间使用系统变量line.separator来分隔

split - 列于列之间的分隔字符传串，行首行尾不加

返回:

编码后的字符串

formatArray

public static <T> String formatArray(T[] array,
                                     int offset,
                                     int length,
                                     Function<Integer,Integer> colFunction,
                                     String split,
                                     Function<T,String> encoder)

hex2byte

@Deprecated
public static byte[] hex2byte(String hexString)

已过时。

hex2byte

@Deprecated
public static byte[] hex2byte(String hexString,
                                          String ignoreChars)

已过时。

base16Decode

public static byte[] base16Decode(String hexString)

base16Decode

public static byte[] base16Decode(String hexString,
                                  String ignoreChars)

intersection

public static <T> Set<T> intersection(Set<T> set1,
                                      Set<T> set2)

交集

参数:: set1 - set1; set2 - set2
返回:: 交集

difference

public static <T> Set<T> difference(Set<T> org,
                                    Set<T> todiv)

差集 org - todiv

参数:: org - org; todiv - todiv
返回:: 差集 org - todiv

join

@SafeVarargs
public static <T> Set<T> join(Collection<T>... sets)

并集

参数:: sets - sets
返回:: 并集

native2AscII

public static String native2AscII(String str)

getNewFile

@Deprecated
public static File getNewFile(String fileName)
                                   throws IOException

已过时。

抛出:: IOException

newFile

public static File newFile(String fileName)
                    throws IOException

抛出:: IOException

getResource

public static URL getResource(String resource,
                              ClassLoader... classLoaders)

indexOf

public static <T> int indexOf(T[] array,
                              T t)

concat

public static String concat(Collection<String> list,
                            String split)

to

public static <T> T to(String str,
                       T value)

toInt

public static int toInt(String str,
                        Supplier<Integer> valueSupplier)

toInt

public static int toInt(String str,
                        int value)

toLong

public static long toLong(String str,
                          Supplier<Long> value)

toLong

public static long toLong(String str,
                          long value)

toBool

public static boolean toBool(String str,
                             Supplier<Boolean> v)

toBool

public static boolean toBool(String str,
                             boolean v)

toArray

public static List<String> toArray(String str,
                                   String delim,
                                   List<String> v)

toArray

public static String[] toArray(String str,
                               String delim,
                               Supplier<String[]> v)

toArray

public static String[] toArray(String str,
                               String delim,
                               String[] v)

trim

public static String trim(String str,
                          char... trimChars)

trim

public static String trim(String str,
                          String toTrim)

sameString

@Deprecated
public static boolean sameString(String str1,
                                             String str2)

已过时。

randomGB2312Char
```
public static char randomGB2312Char()
```
https://zh.wikipedia.org/wiki/GB_2312

返回:

一个随机的中文字符(GB2312的一级文字)

randomChar

public static char randomChar(String s)

random

public static <T> T random(T[] range)

random

public static byte random(byte[] range)

random

public static short random(short[] range)

random

public static int random(int[] range)

random

public static long random(long[] range)

random

public static float random(float[] range)

random

public static double random(double[] range)

randomStr

public static String randomStr(int min,
                               int max,
                               String range)

copy

public static Calendar copy(Calendar calendar)

lowerFirstChar

public static String lowerFirstChar(String string)

upperFirstChar

public static String upperFirstChar(String string)

camelCase

public static String camelCase(String s)

camelCase

public static String camelCase(String s,
                               String delimiters)

camelCase

public static String camelCase(String s,
                               boolean firstCharUpperCase)

camelCase

public static String camelCase(String s,
                               boolean firstCharUpperCase,
                               String delimiters)

similarity

public static double similarity(String s1,
                                String s2)

参数:: s1 - s1; s2 - s2
返回:: 两个字符串的相似度

subMap

public static <T> Map<String,T> subMap(String prefix,
                                       Map<String,T> map)

calendarToStr

public static String calendarToStr(Calendar calendar,
                                   String format)

calendarToStr

public static String calendarToStr(Calendar calendar)

dateToStr

public static String dateToStr(Date date,
                               String format)

dateToStr

public static String dateToStr(Date date)

getSafetyDateFormat

public static DateFormat getSafetyDateFormat(String format)

strToDate

public static Date strToDate(String str,
                             String format)
                      throws ParseException

抛出:: ParseException

strToDate

public static Date strToDate(String str)
                      throws ParseException

抛出:: ParseException

strToCalendar

public static Calendar strToCalendar(String str,
                                     String format)
                              throws ParseException

抛出:: ParseException

long2Bytes

public static byte[] long2Bytes(long data)

longToDateStr

public static String longToDateStr(long l)

longToDateStr

public static String longToDateStr(long l,
                                   String format)

longToCalendar

public static Calendar longToCalendar(long l)

dateToCalendar

public static Calendar dateToCalendar(Date date)

min

@SafeVarargs
public static <T extends Comparable<T>> T min(T c1,
                                                           T c2,
                                                           T... others)

calendar

public static Calendar calendar(int year)

calendar

public static Calendar calendar(int year,
                                int month)

calendar

public static Calendar calendar(int year,
                                int month,
                                int date)

calendar

public static Calendar calendar(int year,
                                int month,
                                int date,
                                int hour)

calendar

public static Calendar calendar(int year,
                                int month,
                                int date,
                                int hour,
                                int minute)

calendar

public static Calendar calendar(int year,
                                int month,
                                int date,
                                int hour,
                                int minute,
                                int second)

calendar

public static Calendar calendar(int year,
                                int month,
                                int date,
                                int hour,
                                int minute,
                                int second,
                                int millisecond)

truncate

public static Calendar truncate(Calendar calendar,
                                int fromField)

now
```
public static String now()
```

now

public static String now(String format)

rte

public static RuntimeException rte(Throwable th)

getSystemStart
```
public static Long getSystemStart()
```

cast

public static <T> T cast(Object obj)

sleep
```
public static void sleep(long ms)
```

forEachBlock

public static <T> void forEachBlock(T[] all,
                                    int blockSize,
                                    boolean continuous,
                                    float redundancy,
                                    BiConsumer<Integer,Integer> consumer)

对一个大数组进行分块操作

类型参数:: T - 元素类型
参数:: all - 所有的数据; blockSize - 块大小; continuous - 是否连续，[0,100),[100, last]为不连续,[0,100][100, last]为连续; redundancy - 最后一块的冗余比例; consumer - 每块数据如何处理

forEachBlock

public static <T> void forEachBlock(T[] all,
                                    int blockSize,
                                    boolean continuous,
                                    float redundancy,
                                    IntFunction<T[]> arrayProvider,
                                    Consumer<T[]> consumer)

对一个大数组进行分块操作

类型参数:: T - T
参数:: all - 所有元素; blockSize - 块大小; continuous - 是否连续，[0,100),[100, last]为不连续,[0,100][100, last]为连续; redundancy - 最后一块的冗余比例; arrayProvider - 新数组如何创建; consumer - 数组处理逻辑

slice

public static <T> Collection<Common.ArrayBlockRef> slice(T[] all,
                                                         int blockSize,
                                                         boolean continuous,
                                                         float redundancy)

将一个大数组分块

类型参数:: T - T
参数:: all - 大数组; blockSize - 块大小; continuous - 是否连续，[0,100),[100, last]为不连续,[0,100][100, last]为连续; redundancy - 最后一块的冗余比例
返回:: 拆分后的数组描述(从哪个下标开始，长度)

isJava9AndLast

public static boolean isJava9AndLast()

类 Common

嵌套类概要

字段概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

PATH_SEPARATOR

FILE_SEPARATOR

USER_DIR

DEFAULT_DATE_FORMAT

DEFAULT_TIME_FORMAT

DEFAULT_DATETIME_FORMAT

SYSTEM_START_TIME

PROCESSOR_COUNT

方法详细资料

isWindows

toAbsolutePath

isDebug

toBytes

arrayToSet

getUUIDStr

sha1

sha1

inArray

findInArray

nullToStr

serialize

deserialize

deepCopy

random

randomC

random

randomC

random

random

randomC

randomC

random

copyMap

isBlank

isEmpty

copyStream

copyStream

checkNull

between

max

byte2hex

byte2hex

byte2hex

byte2hex

base16Encode

base16Encode

base16Encode

base16Encode

base16Encode

base16Encode

formatArray

hex2byte

hex2byte

base16Decode

base16Decode

intersection

difference

join

native2AscII

getNewFile

newFile

getResource

indexOf

concat

to

toInt

toInt

toLong

toLong

toBool

toBool

toArray

toArray

toArray