Issues (3)

src/Dispatch/Queue_Service.php (1 issue)

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<?php
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declare(strict_types=1);
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/**
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 * Injectable Queue Service for interacting with the Queue.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * @author Glynn Quelch <[email protected]>
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 * @license http://www.opensource.org/licenses/mit-license.html  MIT License
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 * @package PinkCrab\Queue
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 * @since 0.1.0
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 */
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namespace PinkCrab\Queue\Dispatch;
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use DateTimeImmutable;
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use PinkCrab\Queue\Event\Event;
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use PinkCrab\Queue\Queue_Driver\Queue;
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This use statement conflicts with another class in this namespace, PinkCrab\Queue\Dispatch\Queue. Consider defining an alias.

Let?s assume that you have a directory layout like this:

.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php

and let?s assume the following content of Bar.php:

// Bar.php
namespace OtherDir;

use SomeDir\Foo; // This now conflicts the class OtherDir\Foo

If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the same runtime, you will see a PHP error such as the following:

PHP Fatal error:  Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php

However, as OtherDir/Foo.php does not necessarily have to be loaded and the error is only triggered if it is loaded before OtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias:

// Bar.php
namespace OtherDir;

use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore.
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final class Queue_Service {
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	private Queue $queue;
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	public function __construct( Queue $queue ) {
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		$this->queue = $queue;
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	}
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	/**
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	 * Dispatch Event
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	 *
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	 * @param Event $event
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	 */
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	public function dispatch( Event $event ): ?int {
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		return $this->queue->dispatch( $event );
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	}
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	/**
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	 * Cancel next occurrence of Event
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	 *
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	 * @param Event $event
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	 */
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	public function cancel_next( Event $event ): void {
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		$this->queue->cancel_next( $event );
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	}
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	/**
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	 * Cancel all occurrences of Event
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	 *
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	 * @param Event $event
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	 */
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	public function cancel_all( Event $event ): void {
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		$this->queue->cancel_all( $event );
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	}
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	/**
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	 * Get next occurrence of Event
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	 *
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	 * @param Event $event
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	 * @return DateTimeImmutable|null
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	 */
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	public function next( Event $event ): ?DateTimeImmutable {
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		return $this->queue->find_next( $event );
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	}
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	/**
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	 * Get all occurrences of Event
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	 *
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	 * @param Event $event
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	 * @return DateTimeImmutable[]
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	 */
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	public function all( Event $event ): array {
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		return $this->queue->find_all( $event );
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	}
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	/**
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	 * Checks if an event exists.
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	 *
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	 * @param Event $event
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	 * @return bool
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	 */
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	public function exists( Event $event ): bool {
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		return $this->queue->is_scheduled( $event );
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	}
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}
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