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phorge/src/applications/drydock/allocator/DrydockAllocatorWorker.php
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DrydockAllocatorWorker.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
final class DrydockAllocatorWorker extends PhabricatorWorker {
protected function doWork() {
$data = $this->getTaskData();
$lease = id(new DrydockLease())->loadOneWhere(
'id = %d',
$data['lease']);
if (!$lease) {
return;
}
$type = $data['type'];
$candidates = id(new DrydockResource())->loadAllWhere(
'type = %s AND status = %s',
$type,
DrydockResourceStatus::STATUS_OPEN);
if ($candidates) {
shuffle($candidates);
$resource = head($candidates);
} else {
$blueprints = DrydockBlueprint::getAllBlueprintsForResource($type);
foreach ($blueprints as $key => $blueprint) {
if (!$blueprint->canAllocateResources()) {
unset($blueprints[$key]);
continue;
}
}
if (!$blueprints) {
$lease->setStatus(DrydockLeaseStatus::STATUS_BROKEN);
$lease->save();
DrydockBlueprint::writeLog(
null,
$lease,
"There are no resources of type '{$type}' available, and no ".
"blueprints which can allocate new ones.");
return;
}
// TODO: Rank intelligently.
shuffle($blueprints);
$blueprint = head($blueprints);
$resource = $blueprint->allocateResource();
}
$blueprint = $resource->getBlueprint();
$blueprint->acquireLease($resource, $lease);
}
}

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