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phab/src/applications/drydock/worker/DrydockResourceUpdateWorker.php
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DrydockResourceUpdateWorker.php
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<?php
final class DrydockResourceUpdateWorker extends DrydockWorker {
protected function doWork() {
$resource_phid = $this->getTaskDataValue('resourcePHID');
$hash = PhabricatorHash::digestForIndex($resource_phid);
$lock_key = 'drydock.resource:'.$hash;
$lock = PhabricatorGlobalLock::newLock($lock_key)
->lock(1);
$resource = $this->loadResource($resource_phid);
$this->updateResource($resource);
$lock->unlock();
}
private function updateResource(DrydockResource $resource) {
$commands = $this->loadCommands($resource->getPHID());
foreach ($commands as $command) {
if ($resource->getStatus() != DrydockResourceStatus::STATUS_OPEN) {
// Resources can't receive commands before they activate or after they
// release.
break;
}
$this->processCommand($resource, $command);
$command
->setIsConsumed(true)
->save();
}
}
private function processCommand(
DrydockResource $resource,
DrydockCommand $command) {
switch ($command->getCommand()) {
case DrydockCommand::COMMAND_RELEASE:
$this->releaseResource($resource);
break;
}
}
private function releaseResource(DrydockResource $resource) {
if ($resource->getStatus() != DrydockResourceStatus::STATUS_OPEN) {
// If we had multiple release commands
// This command is only meaningful to resources in the "Open" state.
return;
}
$viewer = $this->getViewer();
$drydock_phid = id(new PhabricatorDrydockApplication())->getPHID();
$resource->openTransaction();
$resource
->setStatus(DrydockResourceStatus::STATUS_CLOSED)
->save();
// TODO: Hold slot locks until destruction?
DrydockSlotLock::releaseLocks($resource->getPHID());
$resource->saveTransaction();
$statuses = array(
DrydockLeaseStatus::STATUS_PENDING,
DrydockLeaseStatus::STATUS_ACQUIRED,
DrydockLeaseStatus::STATUS_ACTIVE,
);
$leases = id(new DrydockLeaseQuery())
->setViewer($viewer)
->withResourceIDs(array($resource->getID()))
->withStatuses($statuses)
->execute();
foreach ($leases as $lease) {
$command = DrydockCommand::initializeNewCommand($viewer)
->setTargetPHID($lease->getPHID())
->setAuthorPHID($drydock_phid)
->setCommand(DrydockCommand::COMMAND_RELEASE)
->save();
$lease->scheduleUpdate();
}
// TODO: Schedule resource destruction.
}
}
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