Method findColumn

java/core/src/java/org/apache/orc/OrcUtils.java:81–108

(TypeDescription schema, String column)

  }

  private static TypeDescription findColumn(TypeDescription schema, String column) {
    TypeDescription result = schema;
    String[] columnMatcher = column.split("\\.");

    int index = 0;
    while (index < columnMatcher.length &&
        result.getCategory() == TypeDescription.Category.STRUCT) {

      String columnName = columnMatcher[index];
      int prevIndex = index;

      List<TypeDescription> fields = result.getChildren();
      List<String> fieldNames = result.getFieldNames();

      for (int i = 0; i < fields.size(); i++) {
        if (columnName.equalsIgnoreCase(fieldNames.get(i))) {
          result = fields.get(i);
          index++;

          break;
        }
      }
      if (prevIndex == index) {
        return null;
      }
    }
    return result;
  }

  public static List<OrcProto.Type> getOrcTypes(TypeDescription typeDescr) {
    List<OrcProto.Type> result = new ArrayList<>();