OpenTelemetry Java 1.49.0 · io.opentelemetry.api.internal.StringUtils

Access	Constructor and Description
private	StringUtils()

Method Summary

Modifier and Type	Method and Description
public static boolean	Returns: `true` if the string is null or is the empty string isNullOrEmpty(String a string reference to check string) Returns `true` if the given string is null or is the empty string.
private static boolean	isPrintableChar(char ch)
public static boolean	Returns: whether the `String` contains only printable characters. isPrintableString(String the `String` to be validated. str) Determines whether the `String` contains only printable characters.
public static String	Returns: the padded string padLeft(String the string to pad value, int the minimum length the resulting padded string must have. Can be zero or negative, in which case the input string is always returned. minLength) Pads a given string on the left with leading 0's up the length.
private static String	Returns: the padded string padStart(String the string which should appear at the end of the result string, int the minimum length the resulting string must have. Can be zero or negative, in which case the input string is always returned. minLength, char the character to insert at the beginning of the result until the minimum length is reached padChar) Returns a string, of length at least `minLength`, consisting of `string` prepended with as many copies of `padChar` as are necessary to reach that length.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

StringUtils	back to summary
private StringUtils()

Method Detail

isNullOrEmpty back to summary

isNullOrEmpty	back to summary
public static boolean isNullOrEmpty(String string) Returns `true` if the given string is null or is the empty string. This method was copied verbatim from Guava library method com.google.common.base.Strings#isNullOrEmpty(java.lang.String). Parameters string:String a string reference to check Returns:boolean `true` if the string is null or is the empty string Annotations @Contract:null -> true

public static boolean isNullOrEmpty(String string)

Returns true if the given string is null or is the empty string.

This method was copied verbatim from Guava library method com.google.common.base.Strings#isNullOrEmpty(java.lang.String).

Parameters

string:String: a string reference to check

Returns:boolean

true if the string is null or is the empty string

Annotations

@Contract:null -> true

isPrintableChar	back to summary
private static boolean isPrintableChar(char ch)

isPrintableString back to summary

isPrintableString	back to summary
public static boolean isPrintableString(String str) Determines whether the `String` contains only printable characters. Parameters str:String the `String` to be validated. Returns:boolean whether the `String` contains only printable characters.

public static boolean isPrintableString(String str)

Determines whether the String contains only printable characters.

Parameters

str:String: the String to be validated.

Returns:boolean

whether the String contains only printable characters.

padLeft	back to summary
public static String padLeft(String value, int minLength) Pads a given string on the left with leading 0's up the length. Parameters value:String the string to pad minLength:int the minimum length the resulting padded string must have. Can be zero or negative, in which case the input string is always returned. Returns:String the padded string

padLeft

back to summary

public static String padLeft(String value, int minLength)

Pads a given string on the left with leading 0's up the length.

Parameters

value:String: the string to pad
minLength:int: the minimum length the resulting padded string must have. Can be zero or negative, in which case the input string is always returned.

Returns:String

the padded string

padStart back to summary

padStart	back to summary
private static String padStart(String string, int minLength, char padChar) Returns a string, of length at least `minLength`, consisting of `string` prepended with as many copies of `padChar` as are necessary to reach that length. For example, `padStart("7", 3, '0')` returns `"007"` `padStart("2010", 3, '0')` returns `"2010"` See `java.util.Formatter` for a richer set of formatting capabilities. This method was copied almost verbatim from Guava library method com.google.common.base.Strings#padStart(java.lang.String, int, char). Parameters string:String the string which should appear at the end of the result minLength:int the minimum length the resulting string must have. Can be zero or negative, in which case the input string is always returned. padChar:char the character to insert at the beginning of the result until the minimum length is reached Returns:String the padded string

private static String padStart(String string, int minLength, char padChar)

Returns a string, of length at least minLength, consisting of string prepended with as many copies of padChar as are necessary to reach that length. For example,

padStart("7", 3, '0') returns "007"
padStart("2010", 3, '0') returns "2010"

See java.util.Formatter for a richer set of formatting capabilities.

This method was copied almost verbatim from Guava library method com.google.common.base.Strings#padStart(java.lang.String, int, char).

Parameters

string:String: the string which should appear at the end of the result
minLength:int: the minimum length the resulting string must have. Can be zero or negative, in which case the input string is always returned.
padChar:char: the character to insert at the beginning of the result until the minimum length is reached

Returns:String

the padded string

public final Class StringUtils

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