Class StringWritableCsv

java.lang.Object
com.ongres.scram.common.util.StringWritableCsv

public class StringWritableCsv extends Object
Helper class to generate Comma Separated Values of StringWritables
  • Constructor Details

    • StringWritableCsv

      public StringWritableCsv()
  • Method Details

    • writeStringWritableToStringBuffer

      private static void writeStringWritableToStringBuffer(StringWritable value, StringBuffer sb)
    • writeTo

      public static StringBuffer writeTo(StringBuffer sb, StringWritable... values) throws IllegalArgumentException
      Write a sequence of StringWritableCsvs to a StringBuffer. Null StringWritables are not printed, but separator is still used. Separator is a comma (',')
      Parameters:
      sb - The sb to write to
      values - Zero or more attribute-value pairs to write
      Returns:
      The same sb, with data filled in (if any)
      Throws:
      IllegalArgumentException - If sb is null
    • parseFrom

      public static String[] parseFrom(String value, int n, int offset) throws IllegalArgumentException
      Parse a String with a StringWritableCsv into its composing Strings represented as Strings. No validation is performed on the individual attribute-values returned.
      Parameters:
      value - The String with the set of attribute-values
      n - Number of entries to return (entries will be null of there were not enough). 0 means unlimited
      offset - How many entries to skip before start returning
      Returns:
      An array of Strings which represent the individual attribute-values
      Throws:
      IllegalArgumentException - If value is null or either n or offset are negative
    • parseFrom

      public static String[] parseFrom(String value, int n) throws IllegalArgumentException
      Parse a String with a StringWritableCsv into its composing Strings represented as Strings. No validation is performed on the individual attribute-values returned. Elements are returned starting from the first available attribute-value.
      Parameters:
      value - The String with the set of attribute-values
      n - Number of entries to return (entries will be null of there were not enough). 0 means unlimited
      Returns:
      An array of Strings which represent the individual attribute-values
      Throws:
      IllegalArgumentException - If value is null or n is negative
    • parseFrom

      public static String[] parseFrom(String value) throws IllegalArgumentException
      Parse a String with a StringWritableCsv into its composing Strings represented as Strings. No validation is performed on the individual attribute-values returned. All the available attribute-values will be returned.
      Parameters:
      value - The String with the set of attribute-values
      Returns:
      An array of Strings which represent the individual attribute-values
      Throws:
      IllegalArgumentException - If value is null