com.attivio.util

Class ModelStringUtils

java.lang.Object

com.attivio.util.ModelStringUtils

public class ModelStringUtils
extends Object

Contains utility functions for working with the Strings

Constructor Summary

Constructors

Constructor and Description
ModelStringUtils()

Method Summary

Modifier and Type	Method and Description
static void	escape(StringBuilder buffer, String value) Write value to buffer, escaping double quote and backslash with a backslash.
static void	escape(StringBuilder buffer, String value, char quoteChar) Write value to buffer, escaping double quote and backslash with a backslash.
static long	getMemoryUsage(String value) Get the estimated memory usage for value.
static boolean	isBlank(String s)
static boolean	isEmpty(String s)
static String	join(int[] ints, char sep, int count) Joins an array of ints into a string with a given separator.
static String	join(int[] ints, char sep, int start, int count) Joins an array of ints into a string with a given separator.
static String	join(int[] ints, String sep) Joins an array of ints into a string with a given separator.
static String	join(int[] ints, String sep, int count) Joins an array of ints into a string with a given separator.
static String	join(int[] ints, String sep, int start, int count) Joins an array of ints into a string with a given separator.
static String	join(Iterator<? extends Object> iterator, String separator)
static String	join(List<String> strList, String separator) Joins input string list with separator
static String	join(long[] longs, String sep) Joins an array of longs into a string with a given separator.
static String	join(long[] longs, String sep, int start, int count) Joins an array of longs into a string with a given separator.
static String	join(Object[] params, String separator)
static String	join(String[] array, char sep, int startIndex, int endIndex) Join slice of array identified by startIndex and endIndex on sep.
static String	join(String a, String b, char sep) Join 2 strings on a separator character.
static Map<String,String[]>	parseQueryString(String qs, String encoding) Parses a standard uri query string.
static String	quote(String value) Wrap value in double quotes.
static void	quote(StringBuilder buffer, String value) Write the quoted string form of value to buffer.
static void	quote(StringBuilder buffer, String value, char quoteChar) Write the quoted string form of value to buffer.
static void	quoteFieldName(StringBuilder buffer, CharSequence text)
static void	quoteFieldName(StringBuilder buffer, CharSequence text, char quoteChar) Conditionally wrap text in double quotes if it contains special characters not allowed in a field name.
static void	quoteQueryTerm(StringBuilder buffer, CharSequence text) Conditionally wrap text in double quotes if it contains special characters not allowed in a field name.
static StringBuilder	repeat(StringBuilder buffer, String value, int count) Append value to buffer count times.
static String[]	split(String s, char c)
static String[]	split(String s, char c, int max)

Methods inherited from class java.lang.Object

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

Constructor Detail

ModelStringUtils

public ModelStringUtils()

Method Detail

getMemoryUsage

public static long getMemoryUsage(String value)

Get the estimated memory usage for value.

repeat

public static StringBuilder repeat(StringBuilder buffer,
                                   String value,
                                   int count)

Append value to buffer count times. A negative value of count is silently treated as zero.

isEmpty

public static boolean isEmpty(String s)

isBlank

public static boolean isBlank(String s)

join

public static String join(int[] ints,
                          char sep,
                          int count)

Joins an array of ints into a string with a given separator.

Parameters:

ints - the integers

sep - the separator

count - only join this many ints

Returns:

the joined string

join

public static String join(long[] longs,
                          String sep)

Joins an array of longs into a string with a given separator.

Parameters:

longs - the longs

sep - the separator

Returns:

the joined string

join

public static String join(int[] ints,
                          char sep,
                          int start,
                          int count)

Joins an array of ints into a string with a given separator.

Parameters:

ints - the integers

sep - the separator

count - only join this many ints

Returns:

the joined string

join

public static String join(long[] longs,
                          String sep,
                          int start,
                          int count)

Joins an array of longs into a string with a given separator.

Parameters:

longs - the longs

sep - the separator

count - only join this many ints

Returns:

the joined string

join

public static String join(List<String> strList,
                          String separator)

Joins input string list with separator

Parameters:

strList - string list to join

separator - to use in between values

Returns:

strings joined by separator, or a zero length string if strList is null or empty

join

public static String join(int[] ints,
                          String sep)

Joins an array of ints into a string with a given separator.

Parameters:

ints - the integers

sep - the separator

Returns:

the joined string

join

public static String join(int[] ints,
                          String sep,
                          int count)

Joins an array of ints into a string with a given separator.

Parameters:

ints - the integers

sep - the separator

Returns:

the joined string

join

public static String join(int[] ints,
                          String sep,
                          int start,
                          int count)

Joins an array of ints into a string with a given separator.

Parameters:

ints - the integers

sep - the separator

count - only join this many ints

Returns:

the joined string

join

public static String join(String a,
                          String b,
                          char sep)

Join 2 strings on a separator character.

join

public static String join(String[] array,
                          char sep,
                          int startIndex,
                          int endIndex)

Join slice of array identified by startIndex and endIndex on sep. Throws NegativeArraySizeException if startIndex is less than or equal to endIndex.

quote

public static String quote(String value)

Wrap value in double quotes.

Any double quotes in value will be escaped by a backslash. Any backslashes in value will be escaped as double backslashes. No other escaping is done; for example a tab character is returned as simply a tab character, not backslash-t.

quoteFieldName

public static void quoteFieldName(StringBuilder buffer,
                                  CharSequence text)

quoteFieldName

public static void quoteFieldName(StringBuilder buffer,
                                  CharSequence text,
                                  char quoteChar)

Conditionally wrap text in double quotes if it contains special characters not allowed in a field name.

quoteQueryTerm

public static void quoteQueryTerm(StringBuilder buffer,
                                  CharSequence text)

Conditionally wrap text in double quotes if it contains special characters not allowed in a field name.

quote

public static void quote(StringBuilder buffer,
                         String value)

Write the quoted string form of value to buffer.

Any double quotes and backslashes in value will be escaped by a backslash. No other escaping is done; for example a tab character is returned as simply a tab character, not backslash-t.

quote

public static void quote(StringBuilder buffer,
                         String value,
                         char quoteChar)

Write the quoted string form of value to buffer.

Any double quotes and backslashes in value will be escaped by a backslash. No other escaping is done; for example a tab character is returned as simply a tab character, not backslash-t.

escape

public static void escape(StringBuilder buffer,
                          String value)

Write value to buffer, escaping double quote and backslash with a backslash.

escape

public static void escape(StringBuilder buffer,
                          String value,
                          char quoteChar)

Write value to buffer, escaping double quote and backslash with a backslash.

join

public static String join(Iterator<? extends Object> iterator,
                          String separator)

join

public static String join(Object[] params,
                          String separator)

split

public static String[] split(String s,
                             char c)

split

public static String[] split(String s,
                             char c,
                             int max)

parseQueryString

public static Map<String,String[]> parseQueryString(String qs,
                                                    String encoding)
                                             throws UnsupportedEncodingException

Parses a standard uri query string. Handles null query strings.

Parameters:

qs -

encoding -

Returns:

a map of query parameter to values. guaranteed to return non-null.

Throws:

UnsupportedEncodingException