static int getIntegerProperty(Table table, String propertyName, int defaultVal) {
    Integer val = getIntegerProperty(table, propertyName);
    return val == null ? defaultVal : val;
  }
@param pushedSegment         the pushed data segment object
@param segmentsDescriptorDir actual directory path for descriptors.
@return a sanitize file name
druid-handler/src/java/org/apache/hadoop/hive/druid/DruidStorageHandlerUtils.java