com.amazonaws.mobileconnectors.amazonmobileanalytics.internal.core.util

Class StringUtil

java.lang.Object

com.amazonaws.mobileconnectors.amazonmobileanalytics.internal.core.util.StringUtil

public final class StringUtil
extends java.lang.Object

String utility methods.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	UTF_8

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.String	clipString(java.lang.String input, int numChars, boolean appendEllipses) Reduces the input string to the number of chars, or its length if the number of chars exceeds the input string's length
static java.lang.String	convertArrayToString(java.lang.String[] stringArr)
static java.lang.String	convertSetToString(java.util.Set<java.lang.String> stringSet)
static java.lang.String	convertStreamToString(java.io.InputStream is, java.nio.charset.Charset charset) Converts an input stream into a string value.
static java.lang.String	convertStreamToUTF8String(java.io.InputStream is) Converts an input stream into a string value.
static boolean	isBlank(java.lang.String string)
static boolean	isNullOrEmpty(java.lang.String string) Determines if a string is null or zero-length.
static java.lang.String	trimOrPadString(java.lang.String str, int len, char pad) Trims string to its last X characters.

Methods inherited from class java.lang.Object

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

Field Detail

UTF_8

public static final java.lang.String UTF_8

See Also:

Constant Field Values

Method Detail

isNullOrEmpty

public static boolean isNullOrEmpty(java.lang.String string)

Determines if a string is null or zero-length.

Parameters:

string - a string

Returns:

true if the argument is null or zero-length, otherwise false

isBlank

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

convertStreamToString

public static java.lang.String convertStreamToString(java.io.InputStream is,
                                     java.nio.charset.Charset charset)
                                              throws java.io.IOException

Converts an input stream into a string value.

Parameters:

is - an input stream

Returns:

a string containing the content of the input stream

Throws:

java.io.IOException - upon a failure reading the input stream

convertStreamToUTF8String

public static java.lang.String convertStreamToUTF8String(java.io.InputStream is)
                                                  throws java.io.IOException

Converts an input stream into a string value.

Parameters:

is - an input stream

Returns:

a string containing the content of the input stream

Throws:

java.io.IOException - upon a failure reading the input stream

clipString

public static java.lang.String clipString(java.lang.String input,
                          int numChars,
                          boolean appendEllipses)

Reduces the input string to the number of chars, or its length if the number of chars exceeds the input string's length

Parameters:

input - The string to clip

numChars - the number of leading chars to keep (all others will be removed)

convertArrayToString

public static java.lang.String convertArrayToString(java.lang.String[] stringArr)

convertSetToString

public static java.lang.String convertSetToString(java.util.Set<java.lang.String> stringSet)

trimOrPadString

public static java.lang.String trimOrPadString(java.lang.String str,
                               int len,
                               char pad)

Trims string to its last X characters. If string is too short, is padded at the front with given char

Parameters:

str - - string to trim

len - - length of desired string. (must be positive)

pad - - character to pad with