public function process() {
		$job = $this->connection->pop();

		if ( ! $job ) {
			return false;
		}

		$exception = null;

		try {
			$job->handle();
		} catch ( Exception $exception ) {
			$job->release();
		}

		if ( $job->attempts() >= $this->attempts ) {
			if ( empty( $exception ) ) {
				$exception = new WorkerAttemptsExceededException();
			}
			
			$job->fail();
		}

		if ( $job->failed() ) {
			$this->connection->failure( $job, $exception );
		} else if ( $job->released() ) {
			$this->connection->release( $job );
		} else {
			$this->connection->delete( $job );
		}

		return true;
	}