Method parseKeys

java/core/src/java/org/apache/orc/impl/ParserUtils.java:528–543

Annotate the given schema with the encryption information. Format of the string is a key-list. key-list = key (';' key-list)? key = key-name ':' field-list field-list = field-name ( ',' field-list )? field-name = number | field-part ('.' field-name)?

(StringPosition source, TypeDescription schema)

   * @throws IllegalArgumentException if there are conflicting keys for a field
   */
  public static void parseKeys(StringPosition source, TypeDescription schema) {
    if (source.hasCharactersLeft()) {
      do {
        String keyName = parseName(source);
        requireChar(source, ':');
        for (TypeDescription field : findSubtypeList(schema, source)) {
          String prev = field.getAttributeValue(TypeDescription.ENCRYPT_ATTRIBUTE);
          if (prev != null && !prev.equals(keyName)) {
            throw new IllegalArgumentException("Conflicting encryption keys " +
                keyName + " and " + prev);
          }
          field.setAttribute(TypeDescription.ENCRYPT_ATTRIBUTE, keyName);
        }
      } while (consumeChar(source, ';'));
    }
  }

  /**
   * Annotate the given schema with the masking information.