com.hazelcast.util

Class StringUtil

java.lang.Object

com.hazelcast.util.StringUtil

public final class StringUtil
extends Object

Utility class for Strings.

Field Summary

Fields

Modifier and Type	Field and Description
static String	LINE_SEPARATOR Points to the System property 'line.separator'.
static Locale	LOCALE_INTERNAL LOCALE_INTERNAL is the default locale for string operations and number formatting.
static Charset	UTF8_CHARSET UTF-8 Charset

Method Summary

Methods

Modifier and Type	Method and Description
static String	bytesToString(byte[] bytes) Creates a UTF8_CHARSET string from a byte array.
static String	bytesToString(byte[] bytes, int offset, int length) Creates a UTF8_CHARSET string from a byte array.
static int	indexOf(String input, char ch) Like a String.indexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling
static int	indexOf(String input, char ch, int offset) Like a String.indexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling
static boolean	isNullOrEmpty(String s) Checks if a string is empty or not.
static boolean	isNullOrEmptyAfterTrim(String s) Checks if a string is empty or not after trim operation
static int	lastIndexOf(String input, char ch) Like a String.lastIndexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling
static int	lastIndexOf(String input, char ch, int offset) Like a String.lastIndexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling
static String	lowerCaseInternal(String s) HC specific settings, operands etc.
static byte[]	stringToBytes(String s) Creates a byte array from a string.
static String	timeToString(long timeMillis) Returns a String representation of the time.
static String	timeToStringFriendly(long timeMillis) Returns a String representation of the time.
static String	upperCaseInternal(String s) HC specific settings, operands etc.

Methods inherited from class java.lang.Object

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

Field Detail

UTF8_CHARSET

public static final Charset UTF8_CHARSET

UTF-8 Charset

LINE_SEPARATOR

public static final String LINE_SEPARATOR

Points to the System property 'line.separator'.

LOCALE_INTERNAL

public static final Locale LOCALE_INTERNAL

LOCALE_INTERNAL is the default locale for string operations and number formatting. Initialized to java.util.Locale.US (US English).

Method Detail

bytesToString

public static String bytesToString(byte[] bytes,
                   int offset,
                   int length)

Creates a UTF8_CHARSET string from a byte array.

Parameters:

bytes - the byte array.

offset - the index of the first byte to decode

length - the number of bytes to decode

Returns:

the string created from the byte array.

bytesToString

public static String bytesToString(byte[] bytes)

Creates a UTF8_CHARSET string from a byte array.

Parameters:

bytes - the byte array.

Returns:

the string created from the byte array.

stringToBytes

public static byte[] stringToBytes(String s)

Creates a byte array from a string.

Parameters:

s - the string.

Returns:

the byte array created from the string.

isNullOrEmpty

public static boolean isNullOrEmpty(String s)

Checks if a string is empty or not.

Parameters:

s - the string to check.

Returns:

true if the string is null or empty, false otherwise

isNullOrEmptyAfterTrim

public static boolean isNullOrEmptyAfterTrim(String s)

Checks if a string is empty or not after trim operation

Parameters:

s - the string to check.

Returns:

true if the string is null or empty, false otherwise

upperCaseInternal

public static String upperCaseInternal(String s)

HC specific settings, operands etc. use this method. Creates an uppercase string from the given string.

Parameters:

s - the given string

Returns:

an uppercase string, or null/empty if the string is null/empty

lowerCaseInternal

public static String lowerCaseInternal(String s)

HC specific settings, operands etc. use this method. Creates a lowercase string from the given string.

Parameters:

s - the given string

Returns:

a lowercase string, or null/empty if the string is null/empty

timeToString

public static String timeToString(long timeMillis)

Returns a String representation of the time.

This method is not particularly efficient since it generates a ton of litter.

Parameters:

timeMillis - time in millis

Returns:

the String

timeToStringFriendly

public static String timeToStringFriendly(long timeMillis)

Returns a String representation of the time. If time is 0, then 'never' is returned.

This method is not particularly efficient since it generates a ton of litter.

Parameters:

timeMillis - time in millis

Returns:

the String

indexOf

public static int indexOf(String input,
          char ch,
          int offset)

Like a String.indexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling

Parameters:

input - to check the indexOf on

ch - character to find the index of

offset - offset to start the reading from

Returns:

index of the character, or -1 if not found

indexOf

public static int indexOf(String input,
          char ch)

Like a String.indexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling

Parameters:

input - to check the indexOf on

ch - character to find the index of

Returns:

index of the character, or -1 if not found

lastIndexOf

public static int lastIndexOf(String input,
              char ch,
              int offset)

Like a String.lastIndexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling

Parameters:

input - to check the indexOf on

ch - character to find the index of

offset - offset to start the reading from the end

Returns:

index of the character, or -1 if not found

lastIndexOf

public static int lastIndexOf(String input,
              char ch)

Like a String.lastIndexOf but without MIN_SUPPLEMENTARY_CODE_POINT handling

Parameters:

input - to check the indexOf on

ch - character to find the index of

Returns:

index of the character, or -1 if not found