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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2017 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT); |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | namespace oat\taoTaskQueue\model; |
| 23 | |
| 24 | use oat\tao\model\taskQueue\Queue\TaskSelector\SelectorStrategyInterface; |
| 25 | use oat\taoTaskQueue\model\Task\CallbackTaskInterface; |
| 26 | use oat\taoTaskQueue\model\Task\TaskInterface; |
| 27 | use Psr\Log\LoggerAwareInterface; |
| 28 | |
| 29 | /** |
| 30 | * Interface QueueDispatcherInterface |
| 31 | * |
| 32 | * @deprecated Use \oat\tao\model\taskQueue\QueueDispatcherInterface |
| 33 | * |
| 34 | * @author Gyula Szucs <gyula@taotesting.com> |
| 35 | */ |
| 36 | interface QueueDispatcherInterface extends \Countable, LoggerAwareInterface |
| 37 | { |
| 38 | /** @deprecated */ |
| 39 | public const SERVICE_ID = 'taoTaskQueue/taskQueue'; |
| 40 | |
| 41 | public const FILE_SYSTEM_ID = 'taskQueueStorage'; |
| 42 | |
| 43 | /** |
| 44 | * Array of queues |
| 45 | */ |
| 46 | public const OPTION_QUEUES = 'queues'; |
| 47 | |
| 48 | /** |
| 49 | * Name of the default queue. Task without specified queue will be published here. |
| 50 | */ |
| 51 | public const OPTION_DEFAULT_QUEUE = 'default_queue'; |
| 52 | |
| 53 | /** |
| 54 | * An array of tasks names with the specified queue where the tasks needs to be published to. |
| 55 | */ |
| 56 | public const OPTION_TASK_TO_QUEUE_ASSOCIATIONS = 'task_to_queue_associations'; |
| 57 | |
| 58 | public const OPTION_TASK_LOG = 'task_log'; |
| 59 | |
| 60 | public const OPTION_TASK_SELECTOR_STRATEGY = 'task_selector_strategy'; |
| 61 | |
| 62 | public const QUEUE_PREFIX = 'TQ'; |
| 63 | |
| 64 | /** |
| 65 | * Add new Queue. |
| 66 | * |
| 67 | * @param QueueInterface $queue |
| 68 | * @return QueueDispatcherInterface |
| 69 | */ |
| 70 | public function addQueue(QueueInterface $queue); |
| 71 | |
| 72 | /** |
| 73 | * @param QueueInterface[] $queues |
| 74 | * @return QueueDispatcherInterface |
| 75 | */ |
| 76 | public function setQueues(array $queues); |
| 77 | |
| 78 | /** |
| 79 | * @param string $queueName |
| 80 | * @return QueueInterface |
| 81 | */ |
| 82 | public function getQueue($queueName); |
| 83 | |
| 84 | /** |
| 85 | * @return QueueInterface[] |
| 86 | */ |
| 87 | public function getQueues(); |
| 88 | |
| 89 | /** |
| 90 | * Get the names of the registered queues. |
| 91 | * |
| 92 | * @return array |
| 93 | */ |
| 94 | public function getQueueNames(); |
| 95 | |
| 96 | /** |
| 97 | * Has the given queue/queue name already been set? |
| 98 | * |
| 99 | * @param string $queueName |
| 100 | * @return bool |
| 101 | */ |
| 102 | public function hasQueue($queueName); |
| 103 | |
| 104 | /** |
| 105 | * Get the default queue. |
| 106 | * |
| 107 | * @return QueueInterface |
| 108 | */ |
| 109 | public function getDefaultQueue(); |
| 110 | |
| 111 | /** |
| 112 | * Get a queue randomly using weight. |
| 113 | * |
| 114 | * @deprecated |
| 115 | * @return QueueInterface |
| 116 | */ |
| 117 | public function getQueueByWeight(); |
| 118 | |
| 119 | /** |
| 120 | * Link a task to a queue. |
| 121 | * |
| 122 | * @param string|object $taskName |
| 123 | * @param string $queueName |
| 124 | * @return QueueDispatcherInterface |
| 125 | */ |
| 126 | public function linkTaskToQueue($taskName, $queueName); |
| 127 | |
| 128 | /** |
| 129 | * Get the linked tasks. |
| 130 | * |
| 131 | * @return array |
| 132 | */ |
| 133 | public function getLinkedTasks(); |
| 134 | |
| 135 | /** |
| 136 | * Initialize queues. |
| 137 | * |
| 138 | * @return void |
| 139 | */ |
| 140 | public function initialize(); |
| 141 | |
| 142 | /** |
| 143 | * Create a task to be managed by the queue from any callable |
| 144 | * |
| 145 | * @param callable $callable |
| 146 | * @param array $parameters |
| 147 | * @param null|string $label Label for the task |
| 148 | * @param null|TaskInterface $parent |
| 149 | * @param boolean $masterStatus |
| 150 | * @return CallbackTaskInterface |
| 151 | */ |
| 152 | public function createTask( |
| 153 | callable $callable, |
| 154 | array $parameters = [], |
| 155 | $label = null, |
| 156 | TaskInterface $parent = null, |
| 157 | $masterStatus = false |
| 158 | ); |
| 159 | |
| 160 | /** |
| 161 | * Publish a task to a queue. |
| 162 | * |
| 163 | * @param TaskInterface $task |
| 164 | * @param null|string $label Label for the task |
| 165 | * @return bool Is the task successfully enqueued? |
| 166 | */ |
| 167 | public function enqueue(TaskInterface $task, $label = null); |
| 168 | |
| 169 | /** |
| 170 | * Receive a task from a specified queue or from a queue selected by a predefined strategy |
| 171 | * |
| 172 | * @param null|string $queueName |
| 173 | * @return null|TaskInterface |
| 174 | */ |
| 175 | public function dequeue($queueName = null); |
| 176 | |
| 177 | /** |
| 178 | * Acknowledge that the task has been received and consumed. |
| 179 | * |
| 180 | * @param TaskInterface $task |
| 181 | */ |
| 182 | public function acknowledge(TaskInterface $task); |
| 183 | |
| 184 | /** |
| 185 | * Are all queues a sync one? |
| 186 | * |
| 187 | * @return bool |
| 188 | */ |
| 189 | public function isSync(); |
| 190 | |
| 191 | /** |
| 192 | * Get resource from rdf storage which represents task in the task queue by linked resource |
| 193 | * Returns null if there is no task linked to given resource |
| 194 | * |
| 195 | * It will be deprecated once we have the general GUI for displaying different info of a task for the user. |
| 196 | * |
| 197 | * @param \core_kernel_classes_Resource $resource |
| 198 | * @return null|\core_kernel_classes_Resource |
| 199 | */ |
| 200 | public function getTaskResource(\core_kernel_classes_Resource $resource); |
| 201 | |
| 202 | /** |
| 203 | * Get report by a linked resource. |
| 204 | * |
| 205 | * It will be deprecated once we have the general GUI for displaying different info of a task for the user. |
| 206 | * |
| 207 | * @param \core_kernel_classes_Resource $resource |
| 208 | * @return \common_report_Report |
| 209 | */ |
| 210 | public function getReportByLinkedResource(\core_kernel_classes_Resource $resource); |
| 211 | |
| 212 | /** |
| 213 | * Create task resource in the rdf storage and link placeholder resource to it. |
| 214 | * |
| 215 | * It will be deprecated once we have the general GUI for displaying different info of a task for the user. |
| 216 | * |
| 217 | * @param TaskInterface $task |
| 218 | * @param \core_kernel_classes_Resource|null $resource Placeholder resource linked to the task |
| 219 | */ |
| 220 | public function linkTaskToResource(TaskInterface $task, \core_kernel_classes_Resource $resource = null); |
| 221 | |
| 222 | /** |
| 223 | * @param SelectorStrategyInterface $selectorStrategy |
| 224 | * @return QueueDispatcherInterface |
| 225 | */ |
| 226 | public function setTaskSelector(SelectorStrategyInterface $selectorStrategy); |
| 227 | |
| 228 | /** |
| 229 | * Seconds for the worker to wait if there is no task. |
| 230 | * |
| 231 | * @return int |
| 232 | */ |
| 233 | public function getWaitTime(); |
| 234 | } |