} else if (way.hasTag("layer")) {
levelName = way.getTag("layer");
level = OSMLevel.fromString(levelName, OSMLevel.Source.LAYER_TAG, noZeroLevels);
}
if (level == null || (!level.reliable)) {
LOG.warn(addBuilderAnnotation(new LevelAmbiguous(levelName, way.getId())));
level = OSMLevel.DEFAULT;
}
wayLevels.put(way, level);
}
}