Package org.apache.hc.core5.util
Class TextUtils
java.lang.Object
org.apache.hc.core5.util.TextUtils
- Since:
- 4.3
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic byte
castAsByte
(int c) Casts character to byte filtering non-visible and non-ASCII characters before conversionstatic boolean
static boolean
Checks if a CharSequence is empty (""), null or whitespace only.static boolean
Returns true if the parameter is null or of zero lengthstatic int
length
(CharSequence cs) Gets a CharSequence length or0
if the CharSequence isnull
.static String
toHexString
(byte[] bytes) Returns a hexadecimal string with lowercase letters, representing the values of thebytes
.static String
Returns lower case representation of the given string usingLocale.ROOT
.
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Constructor Details
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TextUtils
private TextUtils()
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Method Details
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isEmpty
Returns true if the parameter is null or of zero length -
isBlank
Checks if a CharSequence is empty (""), null or whitespace only.
Whitespace is defined by
Character.isWhitespace(char)
.TextUtils.isBlank(null) = true TextUtils.isBlank("") = true TextUtils.isBlank(" ") = true TextUtils.isBlank("abg") = false TextUtils.isBlank(" abg ") = false
- Parameters:
s
- the CharSequence to check, may be null- Returns:
true
if the CharSequence is null, empty or whitespace only
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length
Gets a CharSequence length or0
if the CharSequence isnull
.- Parameters:
cs
- a CharSequence ornull
- Returns:
- CharSequence length or
0
if the CharSequence isnull
. - Since:
- 5.1
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containsBlanks
- Since:
- 4.4
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toHexString
Returns a hexadecimal string with lowercase letters, representing the values of thebytes
.- Parameters:
bytes
- whose hex string should be created- Returns:
- hex string for the bytes
- Since:
- 5.0
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toLowerCase
Returns lower case representation of the given string usingLocale.ROOT
.- Since:
- 5.2
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castAsByte
Casts character to byte filtering non-visible and non-ASCII characters before conversion- Since:
- 5.2
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