io.openmessaging.storage.dledger.utils

类 DLedgerUtils

java.lang.Object

io.openmessaging.storage.dledger.utils.DLedgerUtils

public class DLedgerUtils
extends java.lang.Object

字段概要

字段

限定符和类型	字段和说明
static java.lang.String	YYYY_MM_DD_HH_MM_SS
static java.lang.String	YYYY_MM_DD_HH_MM_SS_SSS
static java.lang.String	YYYYMMDDHHMMSS

构造器概要

构造器

构造器和说明
DLedgerUtils()

方法概要

限定符和类型	方法和说明
static int	asInt(java.lang.String str, int defaultValue)
static long	asLong(java.lang.String str, long defaultValue)
static java.lang.String	bytes2string(byte[] src)
static byte[]	compress(byte[] src, int level)
static long	computeEclipseTimeMilliseconds(long beginTime)
static long	computNextHalfHourTimeMillis()
static long	computNextHourTimeMillis()
static long	computNextMinutesTimeMillis()
static long	computNextMorningTimeMillis()
static int	crc32(byte[] array)
static int	crc32(byte[] array, int offset, int length)
static java.lang.String	currentStackTrace()
static long	elapsed(long start)
static java.lang.String	formatDate(java.util.Date date, java.lang.String pattern)
static java.lang.String	frontStringAtLeast(java.lang.String str, int size)
static double	getDiskPartitionSpaceUsedPercent(java.lang.String path)
static byte[]	getIP()
static int	getPid()
static java.lang.String	ipToIPv4Str(byte[] ip)
static boolean	isBlank(java.lang.String str)
static boolean	isInternalIP(byte[] ip)
static boolean	isItTimeToDo(java.lang.String when)
static java.lang.String	jstack()
static java.lang.String	jstack(java.util.Map<java.lang.Thread,java.lang.StackTraceElement[]> map)
static long	left(long end)
static java.lang.String	offset2FileName(long offset)
static java.util.Date	parseDate(java.lang.String date, java.lang.String pattern)
static java.lang.String	responseCode2String(int code)
static void	sleep(long sleepMs)
static byte[]	string2bytes(java.lang.String hexString)
static java.lang.String	timeMillisToHumanString()
static java.lang.String	timeMillisToHumanString(long t)
static java.lang.String	timeMillisToHumanString2(long t)
static java.lang.String	timeMillisToHumanString3(long t)
static byte[]	uncompress(byte[] src)

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

YYYY_MM_DD_HH_MM_SS

public static final java.lang.String YYYY_MM_DD_HH_MM_SS

另请参阅:

常量字段值

YYYY_MM_DD_HH_MM_SS_SSS

public static final java.lang.String YYYY_MM_DD_HH_MM_SS_SSS

另请参阅:

常量字段值

YYYYMMDDHHMMSS

public static final java.lang.String YYYYMMDDHHMMSS

另请参阅:

常量字段值

构造器详细资料

DLedgerUtils

public DLedgerUtils()

方法详细资料

sleep

public static void sleep(long sleepMs)

elapsed

public static long elapsed(long start)

left

public static long left(long end)

getPid

public static int getPid()

currentStackTrace

public static java.lang.String currentStackTrace()

offset2FileName

public static java.lang.String offset2FileName(long offset)

computeEclipseTimeMilliseconds

public static long computeEclipseTimeMilliseconds(long beginTime)

isItTimeToDo

public static boolean isItTimeToDo(java.lang.String when)

timeMillisToHumanString

public static java.lang.String timeMillisToHumanString()

timeMillisToHumanString

public static java.lang.String timeMillisToHumanString(long t)

computNextMorningTimeMillis

public static long computNextMorningTimeMillis()

computNextMinutesTimeMillis

public static long computNextMinutesTimeMillis()

computNextHourTimeMillis

public static long computNextHourTimeMillis()

computNextHalfHourTimeMillis

public static long computNextHalfHourTimeMillis()

timeMillisToHumanString2

public static java.lang.String timeMillisToHumanString2(long t)

timeMillisToHumanString3

public static java.lang.String timeMillisToHumanString3(long t)

getDiskPartitionSpaceUsedPercent

public static double getDiskPartitionSpaceUsedPercent(java.lang.String path)

crc32

public static int crc32(byte[] array)

crc32

public static int crc32(byte[] array,
                        int offset,
                        int length)

bytes2string

public static java.lang.String bytes2string(byte[] src)

string2bytes

public static byte[] string2bytes(java.lang.String hexString)

uncompress

public static byte[] uncompress(byte[] src)
                         throws java.io.IOException

抛出:

java.io.IOException

compress

public static byte[] compress(byte[] src,
                              int level)
                       throws java.io.IOException

抛出:

java.io.IOException

asInt

public static int asInt(java.lang.String str,
                        int defaultValue)

asLong

public static long asLong(java.lang.String str,
                          long defaultValue)

formatDate

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

parseDate

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

responseCode2String

public static java.lang.String responseCode2String(int code)

frontStringAtLeast

public static java.lang.String frontStringAtLeast(java.lang.String str,
                                                  int size)

isBlank

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

jstack

public static java.lang.String jstack()

jstack

public static java.lang.String jstack(java.util.Map<java.lang.Thread,java.lang.StackTraceElement[]> map)

isInternalIP

public static boolean isInternalIP(byte[] ip)

ipToIPv4Str

public static java.lang.String ipToIPv4Str(byte[] ip)

getIP

public static byte[] getIP()