private function activateLease(DrydockLease $lease)
{
$actual_status = $lease->getStatus();
if ($actual_status != DrydockLeaseStatus::STATUS_ACQUIRED) {
throw new PhabricatorWorkerPermanentFailureException(pht('Trying to activate lease from wrong status ("%s").', $actual_status));
}
$resource_id = $lease->getResourceID();
$resource = id(new DrydockResourceQuery())->setViewer($this->getViewer())->withIDs(array($resource_id))->executeOne();
if (!$resource) {
throw new PhabricatorWorkerPermanentFailureException(pht('Trying to activate lease on invalid resource ("%s").', $resource_id));
}
$resource_status = $resource->getStatus();
if ($resource_status == DrydockResourceStatus::STATUS_PENDING) {
// TODO: This is explicitly a temporary failure -- we are waiting for
// the resource to come up.
throw new Exception(pht('Resource still activating.'));
}
if ($resource_status != DrydockResourceStatus::STATUS_OPEN) {
throw new PhabricatorWorkerPermanentFailureException(pht('Trying to activate lease on a dead resource (in status "%s").', $resource_status));
}
// NOTE: We can race resource destruction here. Between the time we
// performed the read above and now, the resource might have closed, so
// we may activate leases on dead resources. At least for now, this seems
// fine: a resource dying right before we activate a lease on it should not
// be distinguisahble from a resource dying right after we activate a lease
// on it. We end up with an active lease on a dead resource either way, and
// can not prevent resources dying from lightning strikes.
$blueprint = $resource->getBlueprint();
$blueprint->activateLease($resource, $lease);
$this->validateActivatedLease($blueprint, $resource, $lease);
}
private function buildPropertyListView(DrydockLease $lease, PhabricatorActionListView $actions)
{
$view = new PHUIPropertyListView();
$view->setActionList($actions);
switch ($lease->getStatus()) {
case DrydockLeaseStatus::STATUS_ACTIVE:
$status = pht('Active');
break;
case DrydockLeaseStatus::STATUS_RELEASED:
$status = pht('Released');
break;
case DrydockLeaseStatus::STATUS_EXPIRED:
$status = pht('Expired');
break;
case DrydockLeaseStatus::STATUS_PENDING:
$status = pht('Pending');
break;
case DrydockLeaseStatus::STATUS_BROKEN:
$status = pht('Broken');
break;
default:
$status = pht('Unknown');
break;
}
$view->addProperty(pht('Status'), $status);
$view->addProperty(pht('Resource Type'), $lease->getResourceType());
$view->addProperty(pht('Resource'), $lease->getResourceID());
$attributes = $lease->getAttributes();
if ($attributes) {
$view->addSectionHeader(pht('Attributes'));
foreach ($attributes as $key => $value) {
$view->addProperty($key, $value);
}
}
return $view;
}
/**
* Make sure that a lease was really acquired properly.
*
* @param DrydockBlueprint Blueprint which created the resource.
* @param DrydockResource Resource which was acquired.
* @param DrydockLease The lease which was supposedly acquired.
* @return void
* @task lease
*/
private function validateAcquiredLease(DrydockBlueprint $blueprint, DrydockResource $resource, DrydockLease $lease)
{
if (!$lease->isAcquiredLease()) {
throw new Exception(pht('Blueprint "%s" (of type "%s") is not properly implemented: it ' . 'returned from "%s" without acquiring a lease.', $blueprint->getBlueprintName(), $blueprint->getClassName(), 'acquireLease()'));
}
$lease_id = $lease->getResourceID();
$resource_id = $resource->getID();
if ($lease_id !== $resource_id) {
// TODO: Destroy the lease?
throw new Exception(pht('Blueprint "%s" (of type "%s") is not properly implemented: it ' . 'returned from "%s" with a lease acquired on the wrong resource.', $blueprint->getBlueprintName(), $blueprint->getClassName(), 'acquireLease()'));
}
}
