private String[] getCqs(ClientProxyMembershipID clientId) {
    String[] cqNames = null;
    if (_clientCqs != null) {
      CqNameToOp cqs = _clientCqs.get(clientId);

      if (cqs != null && !cqs.isEmpty()) {
        cqNames = cqs.getNames();
      }
    }
    return cqNames;
  }
Returns the cqs for the given client.
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/ClientUpdateMessageImpl.java