How to use

getRole

method

in

org.apache.mesos.v1.Protos$Resource

public static Set<String> getRoles(Offer offer) {
 Set<String> roles = Sets.newHashSet();
 for (Resource r : offer.getResourcesList()) {
  roles.add(r.getRole());
 }
 return roles;
}

private static boolean hasRequiredRole(Resource r, Optional<String> requiredRole) {
 if (requiredRole.isPresent() && hasRole(r)) {
  // required role with a resource with role
  return requiredRole.get().equals(r.getRole());
 } else if (requiredRole.isPresent() && !hasRole(r)) {
  // required role with a resource for any role
  return false;
 } else if (!requiredRole.isPresent() && hasRole(r)) {
  // no required role but resource with role
  return false;
 } else if (!requiredRole.isPresent() && !hasRole(r)) {
  // no required role and resource for any role
  return true;
 } else {
  return false;
 }
}

private static boolean hasRole(Resource r) {
 return r.hasRole() && !r.getRole().equals("*");
}

final Resource mem = memList.get(i);
if (desiredRole.equals(cpus.getRole()) && desiredRole.equals(mem.getRole())) {
  double availableCpu = cpus.getScalar().getValue();
  double availableMem = mem.getScalar().getValue();
    availableMem -= memMbPerTask;
    final String taskId = String.format("task-%d-%d", offerCount, state.getTotalTaskCounter().incrementAndGet());
    tasks.add(sleepTask(agentId, taskId, cpus.getRole(), cpusPerTask, mem.getRole(), memMbPerTask));

private static boolean hasRequiredRole(Resource r, Optional<String> requiredRole) {
 if (requiredRole.isPresent() && hasRole(r)) {
  // required role with a resource with role
  return requiredRole.get().equals(r.getRole());
 } else if (requiredRole.isPresent() && !hasRole(r)) {
  // required role with a resource for any role
  return false;
 } else if (!requiredRole.isPresent() && hasRole(r)) {
  // no required role but resource with role
  return false;
 } else if (!requiredRole.isPresent() && !hasRole(r)) {
  // no required role and resource for any role
  return true;
 } else {
  return false;
 }
}

private static boolean hasRole(Resource r) {
 return r.hasRole() && !r.getRole().equals("*");
}

public static Set<String> getRoles(Offer offer) {
 Set<String> roles = Sets.newHashSet();
 for (Resource r : offer.getResourcesList()) {
  roles.add(r.getRole());
 }
 return roles;
}