private static void dropIndexIfExists(MongoCollection<Document> col, String fieldName) {
for (Document d : col.listIndexes()) {
if (d.get("key", Document.class).containsKey(fieldName)) {
logger.warn("Schema migration. Dropping index: " + fieldName + " ...");
try {
col.dropIndex(fieldName);
} catch (Exception swallowed) {
} // because not implemented in Fongo
return;
}
}
}
@Override
public void dropIndex(Bson arg0) {
coll.dropIndex(arg0);
}
@Override
public void dropIndex(String arg0) {
coll.dropIndex(arg0);
}