Module datarush.library
Package com.pervasive.datarush.util

Class StringUtil

  • public class StringUtil
extends Object
    Utility methods for operating on strings.

    • Constructor Detail

      • StringUtil

        public StringUtil()

    • Method Detail

      • escapeAndQuote

        public static String escapeAndQuote​(String str)
        Escapes the input string and surrounds it with single quotes.

        This method should not be used for field names; instead, use formatFieldName(String).

        Parameters:
        str - the string to escape and quote
        Returns:
        the escaped and quoted string

      • unescapeAndQuote

        public static String unescapeAndQuote​(String str)
        Removes a single layer of matched leading and trailing quotes, and also unescapes JavaScript style escape sequences.
        Parameters:
        str - the string to unquote and unescape
        Returns:
        the unquoted and unescaped string

      • formatFieldName

        public static String formatFieldName​(String name)
        Formats a field name for printing to the console or GUI. The field name is surrounded with backticks, as it would be formatted in the expression language.
        Parameters:
        name - the field name to format
        Returns:
        the formatted field name

      • escapeFieldName

        public static String escapeFieldName​(String name)
        Escapes a field name, for use in the expression language. Control characters and backticks are escaped, while quotes and Unicode characters are left intact.
        Parameters:
        name - the field name to escape
        Returns:
        the escaped field name

      • getTypeName

        public static String getTypeName​(String packageStyleType)
        Gets the unqualified type name from a fully qualified type name. For example an input of "com.acme.Foo" would result in "Foo".
        Parameters:
        packageStyleType - the fully qualified type name in dot notation
        Returns:
        Type the unqualified name

      • join

        public static String join​(String separator,
                          Iterable<?> values)
        Concatenates string values together using a separator. Values are concatenated in order according to the Iterator of values. Objects in values that are not strings are converted to strings via their Object.toString() method.
        Parameters:
        separator - the separator to use between string values
        values - the values to concatenate
        Returns:
        values joined by separator into a single string

      • join

        public static String join​(Iterable<?> values)
        Concatenates string values together using a comma followed by a space. Values are concatenated in order according to the Iterator of values. Objects in values that are not strings are converted to strings via their Object.toString() method.

        This method is equivalent to join(", ", values).

        Parameters:
        values - the values to concatenate
        Returns:
        values joined by ", " into a single string

      • join

        public static String join​(String separator,
                          Object[] values)
        Concatenates string values together using a separator. Objects in values that are not strings are converted to strings via their Object.toString() method.
        Parameters:
        separator - the separator to use between string values
        values - the values to concatenate
        Returns:
        values joined by separator into a single string

      • join

        public static String join​(Object[] values)
        Concatenates string values together using a comma followed by a space. Objects in values that are not strings are converted to strings via their Object.toString() method.

        This method is equivalent to join(", ", values).

        Parameters:
        values - the values to concatenate
        Returns:
        values joined by ", " into a single string

      • split

        public static final String[] split​(String data,
                                   char delimiter)
        Splits incoming String data into an array of substrings based on a character delimiter. If the delimiter didn't exist, the returned array contains one element equal to the original string data. This method is a subset of String.split() which takes regex and is less efficient.
        Parameters:
        data - the string to split
        delimiter - the character separating elements
        Returns:
        string array

      • parseCSV

        public static String[] parseCSV​(String data)
        Parses a comma-separated list into an array of strings. extra whitespace is ignored
        Parameters:
        data -
        Returns:

      • toCSV

        public static String toCSV​(Collection<String> values)
        Create a csv from a list of strings
        Parameters:
        values - the values
        Returns:
        a comma-separated list of values