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<?php declare( strict_types=1 ); |
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namespace BotRiconferme\Task; |
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use BotRiconferme\TaskResult; |
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use BotRiconferme\ContextSource; |
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use BotRiconferme\TaskDataProvider; |
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/** |
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* Base framework for all kind of tasks and subtasks |
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*/ |
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abstract class TaskBase extends ContextSource { |
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// Status codes. GOOD = everything fine, NOTHING = nothing to do, ERROR = found non-fatal errors |
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const STATUS_GOOD = 0; |
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const STATUS_NOTHING = 1; |
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const STATUS_ERROR = 2; |
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/** @var string[] */ |
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protected $errors = []; |
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/** @var TaskDataProvider */ |
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protected $dataProvider; |
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/** |
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* Final to keep calls linear in the TaskManager |
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* |
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* @param TaskDataProvider $dataProvider |
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*/ |
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final public function __construct( TaskDataProvider $dataProvider ) { |
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set_exception_handler( [ $this, 'handleException' ] ); |
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set_error_handler( [ $this, 'handleError' ] ); |
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parent::__construct(); |
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$this->dataProvider = $dataProvider; |
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} |
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public function __destruct() { |
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restore_error_handler(); |
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restore_exception_handler(); |
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} |
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/** |
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* Entry point |
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* |
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* @return TaskResult |
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*/ |
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final public function run() : TaskResult { |
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$task = static::class; |
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$this->getLogger()->info( "Starting task $task" ); |
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$status = $this->runInternal(); |
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switch ( $status ) { |
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case self::STATUS_GOOD: |
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$msg = "Task $task completed successfully."; |
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break; |
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case self::STATUS_NOTHING: |
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$msg = "Task $task: nothing to do."; |
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break; |
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case self::STATUS_ERROR: |
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// We're fine with it, but don't run other tasks |
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$msg = "Task $task completed with warnings."; |
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break; |
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default: |
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throw new \LogicException( "Unexpected status: $status." ); |
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} |
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$this->getLogger()->info( $msg ); |
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return new TaskResult( $status, $this->errors ); |
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} |
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/** |
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* Actual main routine. |
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* |
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* @return int One of the STATUS_* constants |
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*/ |
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abstract protected function runInternal() : int; |
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/** |
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* Exception handler. |
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* |
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* @param \Throwable $ex |
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* @protected |
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*/ |
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public function handleException( \Throwable $ex ) { |
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$this->getLogger()->error( |
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get_class( $ex ) . ': ' . |
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$ex->getMessage() . "\nTrace:\n" . |
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$ex->getTraceAsString() |
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); |
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} |
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/** |
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* Error handler. As default, always throw |
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* |
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* @param int $errno |
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* @param string $errstr |
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* @param string $errfile |
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* @param int $errline |
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* @protected |
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*/ |
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public function handleError( $errno, $errstr, $errfile, $errline ) { |
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throw new \ErrorException( $errstr, 0, $errno, $errfile, $errline ); |
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} |
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/** |
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* @return TaskDataProvider |
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*/ |
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protected function getDataProvider() : TaskDataProvider { |
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return $this->dataProvider; |
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} |
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} |
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Daimona /
BotRiconferme
