public Set<String> findUserIdsConnectedTo(String providerId, Set<String> providerUserIds) {
ResultSet rs = null;
Set<String> localUserIds = null;
Statement getUserIds = null;
try {
getUserIds =
QueryBuilder.select()
.column("userid")
.from(keyspace, table)
.where(QueryBuilder.eq("providerId", providerId))
.and(QueryBuilder.in("providerUserId", providerUserIds));
rs = session.execute(getUserIds);
if (rs.all().size() > 0) {
localUserIds = new HashSet<String>();
}
for (Row row : rs.all()) {
localUserIds.add(row.getString("userId"));
}
return localUserIds;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
