private static String getColocate(BOperator bop) {
JSONObject placement = JOperatorConfig.getJSONItem(bop.json(), JOperatorConfig.PLACEMENT);
if (placement == null) return null;
Object ido = placement.get(JOperator.PLACEMENT_EXPLICIT_COLOCATE_ID);
if (ido == null) return null;
return ido.toString();
}
private static Set<String> getResourceTags(BOperator bop) {
JSONObject placement = JOperatorConfig.getJSONItem(bop.json(), JOperatorConfig.PLACEMENT);
if (placement == null) return null;
JSONArray jat = (JSONArray) placement.get(JOperator.PLACEMENT_RESOURCE_TAGS);
if (jat == null) return null;
Set<String> tags = new HashSet<>();
for (Object rt : jat) tags.add(rt.toString());
return tags;
}