Package com.sshtools.common.util

Class Utils

java.lang.Object

com.sshtools.common.util.Utils

public class Utils
extends Object

Constructor Summary

Constructors

Constructor	Description
Utils()

Method Summary

Modifier and Type	Method	Description
static String	after(String value, char token)
static String	after(String value, String token)
static String	before(String value, char token)
static String	before(String value, String token)
static String	bytesToHex(byte[] bytes)
static String	bytesToHex(byte[] bytes, int bytesPerLine, boolean separateBytes, boolean showText)
static String	bytesToHex(byte[] bytes, int off, int len)
static String	bytesToHex(byte[] bytes, int off, int len, int bytesPerLine, boolean separateBytes, boolean showText)
static String	csv(String... elements)
static String	csv(String separator, String... elements)
static String	csv(String separator, Collection<String> elements)
static String	csv(Collection<String> elements)
static String	defaultString(String value, String defaultValue)
static Optional<char[]>	emptyOptionalIfBlank(char[] str)
static Optional<String>	emptyOptionalIfBlank(String str)
static String	encodeUserInfo(String userinfo)
static String	exec(String... cmd)
static String	formatHostnameAndPort(String hostname, int port)
static String	generateThreadDump(Thread.State... states)	From https://crunchify.com/how-to-generate-java-thread-dump-programmatically/
static int	getPort(String hostname)
static byte[]	getUTF8Bytes(String str)
static boolean	hasPort(String hostname)
static byte[]	hexToBytes(String s)	Converts a hex string to bytes.
static boolean	isBlank(String str)
static boolean	isNotBlank(String str)
static String	join(String[] args, String str)
static String	mergeToArgsString(String[] args)
static int	nearestMultipleOf(int length, int i)
static String	pad(int num)
static String	prompt(BufferedReader reader, String message)
static String	prompt(BufferedReader reader, String message, String defaultValue)
static String	randomAlphaNumericString(int length)
static String	rightPad(String rendered, int minWidth)
static String[]	splitToArgsArray(String args)
static byte[]	stripLeadingZeros(byte[] data)
static String	translatePathString(Path path)

Methods inherited from class java.lang.Object

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

Constructor Details

Utils

public Utils()

Method Details

before

public static String before(String value,
 char token)

after

public static String after(String value,
 char token)

after

public static String after(String value,
 String token)

before

public static String before(String value,
 String token)

bytesToHex

public static String bytesToHex(byte[] bytes)

bytesToHex

public static String bytesToHex(byte[] bytes,
 int off,
 int len)

bytesToHex

public static String bytesToHex(byte[] bytes,
 int bytesPerLine,
 boolean separateBytes,
 boolean showText)

bytesToHex

public static String bytesToHex(byte[] bytes,
 int off,
 int len,
 int bytesPerLine,
 boolean separateBytes,
 boolean showText)

stripLeadingZeros

public static byte[] stripLeadingZeros(byte[] data)

nearestMultipleOf

public static int nearestMultipleOf(int length,
 int i)

splitToArgsArray

public static String[] splitToArgsArray(String args)

generateThreadDump

public static String generateThreadDump(Thread.State... states)

From https://crunchify.com/how-to-generate-java-thread-dump-programmatically/

Returns:

isBlank

public static boolean isBlank(String str)

isNotBlank

public static boolean isNotBlank(String str)

mergeToArgsString

public static String mergeToArgsString(String[] args)

getUTF8Bytes

public static byte[] getUTF8Bytes(String str)

join

public static String join(String[] args,
 String str)

rightPad

public static String rightPad(String rendered,
 int minWidth)

defaultString

public static String defaultString(String value,
 String defaultValue)

csv

public static String csv(String... elements)

csv

public static String csv(Collection<String> elements)

csv

public static String csv(String separator,
 String... elements)

csv

public static String csv(String separator,
 Collection<String> elements)

randomAlphaNumericString

public static String randomAlphaNumericString(int length)

exec

public static String exec(String... cmd)
                   throws IOException,
InterruptedException

Throws:

IOException

InterruptedException

prompt

public static String prompt(BufferedReader reader,
 String message)
                     throws IOException

Throws:

IOException

prompt

public static String prompt(BufferedReader reader,
 String message,
 String defaultValue)
                     throws IOException

Throws:

IOException

hasPort

public static boolean hasPort(String hostname)

formatHostnameAndPort

public static String formatHostnameAndPort(String hostname,
 int port)

getPort

public static int getPort(String hostname)

hexToBytes

public static byte[] hexToBytes(String s)

Converts a hex string to bytes.

Parameters:

s - the hex string to be converted.

Returns:

the byte[]

pad

public static String pad(int num)

emptyOptionalIfBlank

public static Optional<String> emptyOptionalIfBlank(String str)

emptyOptionalIfBlank

public static Optional<char[]> emptyOptionalIfBlank(char[] str)

translatePathString

public static String translatePathString(Path path)

encodeUserInfo

public static String encodeUserInfo(String userinfo)