Package org.identityconnectors.common

Class StringUtil

  • public final class StringUtil
extends Object
    String Utilities.

    • Method Detail

      • indexOfDigit

        public static int indexOfDigit​(String str,
                               int startidx)
        Finds the index of the first digit and starts from the index specified.
        Parameters:
        str - String to search for a digit.
        startidx - Starting index from which to search
        Returns:
        -1 if not found otherwise the index.

      • indexOfDigit

        public static int indexOfDigit​(String str)
        Finds the index of the first digit.
        Parameters:
        str - String to search for a digit.
        Returns:
        -1 if not found otherwise the index.

      • indexOfNonDigit

        public static int indexOfNonDigit​(String str,
                                  int startidx)
        Finds the index of the first non digit and starts from the index specified.
        Parameters:
        str - String to search for a non digit.
        startidx - Starting index from which to search.
        Returns:
        -1 if not found otherwise the index.

      • indexOfNonDigit

        public static int indexOfNonDigit​(String str)
        Finds the index of the first non digit.
        Parameters:
        str - String to search for a non digit.
        Returns:
        -1 if not found otherwise the index.

      • subDigitString

        public static String subDigitString​(String str)
        Return the string of digits from string.
        Parameters:
        str - Source string to search.

      • subDigitString

        public static String subDigitString​(String str,
                                    int idx)
        Return the string of digits from string.
        Parameters:
        str - Source string to search.
        idx - Start index from which to search.

      • stripXmlAttribute

        public static String stripXmlAttribute​(String src,
                                       String attrName)
        Removes the attribute from the source string and returns.

      • stripNewlines

        public static String stripNewlines​(String src)
        Removes newline characters (0x0a and 0x0d) from a string.

      • indexOfIgnoreCase

        public static int indexOfIgnoreCase​(String src,
                                    String cmp)
        Finds the start index of the comparison string regards of case.
        Parameters:
        src - String to search.
        cmp - Comparison string to find.
        Returns:
        -1 if not found otherwise the index of the starting character.

      • stripXmlComments

        public static String stripXmlComments​(String src)
        Strip XML comments.

      • indexOf

        public static int indexOf​(String src,
                          char[] ch)

      • indexOf

        public static int indexOf​(String src,
                          char[] ch,
                          int idx)

      • isEmpty

        public static boolean isEmpty​(String val)
        Determines if a string is empty. Empty is defined as null or empty string. 
          StringUtil.isEmpty(null)               = true
  StringUtil.isEmpty("")       = true
  StringUtil.isEmpty(" ")      = false
  StringUtil.isEmpty("bob")    = false
  StringUtil.isEmpty(" bob ")  = false
        Parameters:
        val - string to evaluate as empty.
        Returns:
        true if the string is empty else false.

      • isNotEmpty

        public static boolean isNotEmpty​(String val)
        Determines if a string is not empty. Its the exact opposite for isEmpty(String).
        Parameters:
        val - string to evaluate.
        Returns:
        true if the string is not empty

      • isBlank

        public static boolean isBlank​(String val)
        Checks if a String is whitespace, empty ("") or null. 
              StringUtil.isBlank(null)                = true
      StringUtil.isBlank("")        = true
      StringUtil.isBlank(" ")       = true
      StringUtil.isBlank("bob")     = false
      StringUtil.isBlank("  bob  ") = false
        Parameters:
        val - the String to check, may be null
        Returns:
        true if the String is null, empty or whitespace

      • isNotBlank

        public static boolean isNotBlank​(String val)
        Checks if a String is not empty (""), not null and not whitespace only. 
              StringUtil.isBlank(null)                = true
      StringUtil.isBlank("")        = true
      StringUtil.isBlank(" ")       = true
      StringUtil.isBlank("bob")     = false
      StringUtil.isBlank("  bob  ") = false
        Parameters:
        val - the String to check, may be null
        Returns:
        true if the String is not empty and not null and not whitespace

      • toProperties

        public static Properties toProperties​(String value)
        Returns a properties object w/ the key/value pairs parsed from the string passed in.

      • replaceVariable

        public static String replaceVariable​(String o,
                                     String var,
                                     String val)
        Simple variable replacement internally using regular expressions. 
         String o = "Some string with a ${variable} in it.";
 String n = replaceVariable(o, "variable", "something");
 String r = "Some string with a something in it";
 assert r.equals(n);
        Parameters:
        o - Original string to do the replacement on.
        var - String representation of the variable to replace.
        val - Value to replace the variable with.
        Returns:
        String will all the variables replaced with the value.
        Throws:
        IllegalArgumentException - if o is null, var is blank, or val is null.

      • endsWith

        public static boolean endsWith​(String str,
                               char value)
        Determines if the string parameter 'str' ends with the character value.
        Parameters:
        str - String to check for the character at the end.
        value - The character to look for at the end of the string.
        Returns:
        true if character parameter is found at the end of the string parameter otherwise false.

      • parseLine

        public static List<String> parseLine​(String line,
                                     char fsep,
                                     char tqul)
        Parses a line into a List of strings.
        Parameters:
        line - String to parse.
        fsep - field separator
        tqul - Text qualifier.
        Returns:
        list of string separated by a delimiter passed in by 'fsep' and text is qualified by the parameter 'tqul'.

      • isWhitespace

        public static boolean isWhitespace​(char ch)
        Determine if this is a white space character. Whitespace characters are defined as the character ' ' and the tab character.

      • randomString

        public static String randomString()
        Create a random Unicode string.

      • randomString

        public static String randomString​(Random r)
        Create a random length Unicode string based on the Random object passed in.

      • randomString

        public static String randomString​(Random r,
                                  int length)
        Create a random string of fixed length based on the Random object passed in. Insure that the string is built w/ Unicode characters.
        Parameters:
        r - used to get random unicode characters.
        length - fixed length of string.
        Returns:
        a randomly generated string based on the parameters.

      • join

        public static String join​(Collection<String> collection,
                          char separator)
        Parameters:
        collection -
        separator -
        Returns:
        Since:
        1.3

      • join

        public static String join​(Object[] array,
                          char separator)
        Parameters:
        array -
        separator -
        Returns:
        Since:
        1.3

      • join

        public static String join​(Object[] array,
                          char separator,
                          int startIndex,
                          int endIndex)
        Parameters:
        array -
        separator -
        startIndex -
        endIndex -
        Returns:
        Since:
        1.3

      • allNotNull

        public static boolean allNotNull​(Object... values)