io.warp10.continuum.gts

Class UnsafeString

java.lang.Object

io.warp10.continuum.gts.UnsafeString

public class UnsafeString
extends java.lang.Object

The following class is inspired by:

See Also:

https://raw.githubusercontent.com/nitsanw/javanetperf/psylobsaw/src/psy/lob/saw/UnsafeString.java, http://psy-lob-saw.blogspot.fr/2012/12/encode-utf-8-string-to-bytebuffer-faster.html

Constructor Summary

Constructors

Constructor and Description
UnsafeString()

Method Summary

Modifier and Type	Method and Description
static char	charAt(java.lang.String s, int idx)
static char[]	getChars(java.lang.String s)
static int	getOffset(java.lang.String s)
static int	indexOf(java.lang.String str, char ch)
static int	indexOf(java.lang.String str, char ch, int idx)
static boolean	isDouble_LIGHT(java.lang.String s)
static boolean	isDouble(java.lang.String s)
static boolean	isLong(java.lang.String s)
static boolean	mayBeDecimalDouble(java.lang.String s) Checks if the given string could be a decimal double, i.e.
static void	resetHash(java.lang.String s) Reset the hash by setting it to 0 so hashcode computation is performed again when the internal char array has changed.
static java.lang.String	sanitizeStrings(java.lang.String str) Replace whitespaces in Strings enclosed in single quotes with '%20'
static java.lang.String[]	split(java.lang.String s, char ch)
static java.lang.String	substring(java.lang.String s, int start, int end)

Methods inherited from class java.lang.Object

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

Constructor Detail

UnsafeString

public UnsafeString()

Method Detail

getChars

public static final char[] getChars(java.lang.String s)

charAt

public static final char charAt(java.lang.String s,
                                int idx)

getOffset

public static final int getOffset(java.lang.String s)

split

public static final java.lang.String[] split(java.lang.String s,
                                             char ch)

substring

public static final java.lang.String substring(java.lang.String s,
                                               int start,
                                               int end)

isLong

public static boolean isLong(java.lang.String s)

isDouble_LIGHT

public static boolean isDouble_LIGHT(java.lang.String s)

isDouble

public static boolean isDouble(java.lang.String s)

mayBeDecimalDouble

public static boolean mayBeDecimalDouble(java.lang.String s)

Checks if the given string could be a decimal double, i.e. only contains '.', '-', '+', '0'-'9'. It does not check if the string is actually a valid double or not, just what kind of double it would be.

indexOf

public static int indexOf(java.lang.String str,
                          char ch)

indexOf

public static int indexOf(java.lang.String str,
                          char ch,
                          int idx)

sanitizeStrings

public static java.lang.String sanitizeStrings(java.lang.String str)

Replace whitespaces in Strings enclosed in single quotes with '%20'

resetHash

public static void resetHash(java.lang.String s)

Reset the hash by setting it to 0 so hashcode computation is performed again when the internal char array has changed.

Parameters:

s -