HelixUtil.parseCsvFormatedKeyValuePairs(constraintAttributesMap);
ConstraintItem item = new ConstraintItem(constraintAttributes);
ClusterConfig.Delta delta =
new ClusterConfig.Delta(clusterId).addConstraintItem(
ConstraintType.valueOf(constraintType), ConstraintId.from(constraintId), item);
accessor.updateCluster(delta);
}
void getConstraints(String[] optValues) {
String clusterName = optValues[0];
ConstraintType constraintType = ConstraintType.valueOf(optValues[1]);