@Override
  public String getDatacenterName(byte id) {
    int idx = (int) id;
    if (idx < 0 || idx >= dataCentersInClusterMap.size()) {
      return null;
    }
    return dataCentersInClusterMap.get(idx);
  }
Return if ssl ports are enabled in this cluster.
ambry-test-utils/src/main/java/com/github/ambry/clustermap/MockClusterMap.java