ListenerPriorityQueue::clear() - Code Metrics - platine-php/event-dispatcher - Measure and Improve Code Quality continuously with Scrutinizer

ListenerPriorityQueue::clear() A
last analyzed 2025-04-03 13:37 UTC

↳ Parent: ListenerPriorityQueue

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	2
dl	0
loc	4
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	0

<?php

/**
 * Platine Event Dispatcher
 *
 * Platine Event Dispatcher is the minimal implementation of PSR 14
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2020 Platine Event Dispatcher
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/**
 *  @file ListenerPriorityQueue.php
 *
 *  The ListenerPriorityQueue class used to manage the listener priorities
 *
 *  @package    Platine\Event
 *  @author Platine Developers Team
 *  @copyright  Copyright (c) 2020
 *  @license    http://opensource.org/licenses/MIT  MIT License
 *  @link   https://www.platine-php.com
 *  @version 1.0.0
 *  @filesource
 */

declare(strict_types=1);

namespace Platine\Event\Listener;

use IteratorAggregate;
use SplObjectStorage;
use SplPriorityQueue;

/**
 * @class ListenerPriorityQueue
 * @package Platine\Event\Listener
 *
 * @implements IteratorAggregate<ListenerInterface>
 */
class ListenerPriorityQueue implements IteratorAggregate
{
    /**
     * The storage
     * @var SplObjectStorage<ListenerInterface, int>
     */
    protected SplObjectStorage $storage;

    /**
     * The priority queue
     * @var SplPriorityQueue<int, ListenerInterface>
     */
    protected SplPriorityQueue $queue;

    /**
     * Create the new instance
     * @param SplObjectStorage<ListenerInterface, int>|null $storage  the storage to use
     * @param SplPriorityQueue<int, ListenerInterface>|null  $queue the priority queue
     */
    public function __construct(
        ?SplObjectStorage $storage = null,
        ?SplPriorityQueue $queue = null
    ) {
        $this->storage = $storage ?? new SplObjectStorage();
        $this->queue = $queue ?? new SplPriorityQueue();
    }

    /**
     * Insert an listener to the queue.
     *
     * @param ListenerInterface $listener
     * @param int $priority
     *
     * @return void
     */
    public function insert(ListenerInterface $listener, int $priority): void
    {
        $this->storage->attach($listener, $priority);
        $this->queue->insert($listener, $priority);
    }

    /**
     * Remove an listener from the queue.
     *
     * @param ListenerInterface $listener
     *
     * @return void
     */
    public function detach(ListenerInterface $listener): void
    {
        if ($this->storage->contains($listener)) {
            $this->storage->detach($listener);
            $this->refreshQueue();
        }
    }

    /**
     * Clear the queue
     * @return void
     */
    public function clear(): void
    {
        $this->storage = new SplObjectStorage();
        $this->queue = new SplPriorityQueue();
    }

    /**
     * Checks whether the queue contains the listener.
     *
     * @param ListenerInterface $listener
     * @return bool
     */
    public function contains(ListenerInterface $listener): bool
    {
        return $this->storage->contains($listener);
    }

    /**
     * Return all listeners
     * @return SplPriorityQueue<int, ListenerInterface>[]
     */
    public function all(): array
    {
        $listeners = [];
        foreach ($this->getIterator() as $listener) {
            $listeners[] = $listener;
        }

        return $listeners;
    }

    /**
     * Clones and returns a iterator.
     *
     * @return SplPriorityQueue<int, ListenerInterface>
     */
    public function getIterator(): SplPriorityQueue
    {
        $queue = clone $this->queue;
        if (!$queue->isEmpty()) {
            $queue->top();
        }

        return $queue;
    }

    /**
     * Refresh the status of the queue
     * @return void
     */
    protected function refreshQueue(): void
    {
        $this->storage->rewind();
        $this->queue = new SplPriorityQueue();
        foreach ($this->storage as $listener) {
            $priority = $this->storage->getInfo();
            $this->queue->insert($listener, $priority);
        }
    }
}


1			<?php
2
3			/**
4			* Platine Event Dispatcher
5			*
6			* Platine Event Dispatcher is the minimal implementation of PSR 14
7			*
8			* This content is released under the MIT License (MIT)
9			*
10			* Copyright (c) 2020 Platine Event Dispatcher
11			*
12			* Permission is hereby granted, free of charge, to any person obtaining a copy
13			* of this software and associated documentation files (the "Software"), to deal
14			* in the Software without restriction, including without limitation the rights
15			* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
16			* copies of the Software, and to permit persons to whom the Software is
17			* furnished to do so, subject to the following conditions:
18			*
19			* The above copyright notice and this permission notice shall be included in all
20			* copies or substantial portions of the Software.
21			*
22			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23			* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24			* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
25			* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26			* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
27			* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28			* SOFTWARE.
29			*/
30
31			/**
32			* @file ListenerPriorityQueue.php
33			*
34			* The ListenerPriorityQueue class used to manage the listener priorities
35			*
36			* @package Platine\Event
37			* @author Platine Developers Team
38			* @copyright Copyright (c) 2020
39			* @license http://opensource.org/licenses/MIT MIT License
40			* @link https://www.platine-php.com
41			* @version 1.0.0
42			* @filesource
43			*/
44
45			declare(strict_types=1);
46
47			namespace Platine\Event\Listener;
48
49			use IteratorAggregate;
50			use SplObjectStorage;
51			use SplPriorityQueue;
52
53			/**
54			* @class ListenerPriorityQueue
55			* @package Platine\Event\Listener
56			*
57			* @implements IteratorAggregate<ListenerInterface>
58			*/
59			class ListenerPriorityQueue implements IteratorAggregate
60			{
61			/**
62			* The storage
63			* @var SplObjectStorage<ListenerInterface, int>
64			*/
65			protected SplObjectStorage $storage;
66
67			/**
68			* The priority queue
69			* @var SplPriorityQueue<int, ListenerInterface>
70			*/
71			protected SplPriorityQueue $queue;
72
73			/**
74			* Create the new instance
75			* @param SplObjectStorage<ListenerInterface, int>\|null $storage the storage to use
76			* @param SplPriorityQueue<int, ListenerInterface>\|null $queue the priority queue
77			*/
78			public function __construct(
79			?SplObjectStorage $storage = null,
80			?SplPriorityQueue $queue = null
81			) {
82			$this->storage = $storage ?? new SplObjectStorage();
83			$this->queue = $queue ?? new SplPriorityQueue();
84			}
85
86			/**
87			* Insert an listener to the queue.
88			*
89			* @param ListenerInterface $listener
90			* @param int $priority
91			*
92			* @return void
93			*/
94			public function insert(ListenerInterface $listener, int $priority): void
95			{
96			$this->storage->attach($listener, $priority);
97			$this->queue->insert($listener, $priority);
98			}
99
100			/**
101			* Remove an listener from the queue.
102			*
103			* @param ListenerInterface $listener
104			*
105			* @return void
106			*/
107			public function detach(ListenerInterface $listener): void
108			{
109			if ($this->storage->contains($listener)) {
110			$this->storage->detach($listener);
111			$this->refreshQueue();
112			}
113			}
114
115			/**
116			* Clear the queue
117			* @return void
118			*/
119			public function clear(): void
120			{
121			$this->storage = new SplObjectStorage();
122			$this->queue = new SplPriorityQueue();
123			}
124
125			/**
126			* Checks whether the queue contains the listener.
127			*
128			* @param ListenerInterface $listener
129			* @return bool
130			*/
131			public function contains(ListenerInterface $listener): bool
132			{
133			return $this->storage->contains($listener);
134			}
135
136			/**
137			* Return all listeners
138			* @return SplPriorityQueue<int, ListenerInterface>[]
139			*/
140			public function all(): array
141			{
142			$listeners = [];
143			foreach ($this->getIterator() as $listener) {
144			$listeners[] = $listener;
145			}
146
147			return $listeners;
148			}
149
150			/**
151			* Clones and returns a iterator.
152			*
153			* @return SplPriorityQueue<int, ListenerInterface>
154			*/
155			public function getIterator(): SplPriorityQueue
156			{
157			$queue = clone $this->queue;
158			if (!$queue->isEmpty()) {
159			$queue->top();
160			}
161
162			return $queue;
163			}
164
165			/**
166			* Refresh the status of the queue
167			* @return void
168			*/
169			protected function refreshQueue(): void
170			{
171			$this->storage->rewind();
172			$this->queue = new SplPriorityQueue();
173			foreach ($this->storage as $listener) {
174			$priority = $this->storage->getInfo();
175			$this->queue->insert($listener, $priority);
176			}
177			}
178			}
179

platine-php / event-dispatcher

ListenerPriorityQueue::clear() A last analyzed 2025-04-03 13:37 UTC

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ListenerPriorityQueue::clear() A
last analyzed 2025-04-03 13:37 UTC