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TaggableEmitter::getTag()   A

↳ Parent: TaggableEmitter

Complexity

Conditions 1
Paths 1

Duplication

Lines 0
Ratio 0 %

Size

Total Lines 4
Code Lines 2

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 1
Bugs 0 Features 1
Metric Value
dl 0
loc 4
rs 10
c 1
b 0
f 1
ccs 2
cts 2
cp 1
cc 1
eloc 2
nc 1
nop 0
crap 1
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<?php
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/*
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 * This file is part of Rocketeer
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 *
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 * (c) Maxime Fabre <ehtnam6@gmail.com>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 *
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 */
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namespace Rocketeer\Services\Events;
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use League\Event\Emitter;
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/**
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 * Assigns tags to listeners to allow
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 * batch operations on subsets of them.
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 */
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class TaggableEmitter extends Emitter
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{
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    /**
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     * The currently active tag.
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     *
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     * @var string
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     */
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    protected $tag = '*';
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    ////////////////////////////////////////////////////////////////////////////////
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    //////////////////////////////////// TAGS //////////////////////////////////////
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    ////////////////////////////////////////////////////////////////////////////////
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    /**
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     * @return string
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     */
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    public function getTag()
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    {
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        return $this->tag;
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    }
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    /**
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     * @param string $tag
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     */
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    public function setTag($tag)
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    {
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        $this->tag = $tag;
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    }
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    /**
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     * @param string   $tags
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     * @param callable $callable
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     */
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    public function onTag($tags, callable $callable)
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    {
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        $previous = $this->tag;
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        $this->setTag($tags);
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        $callable();
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        $this->setTag($previous);
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    }
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    ////////////////////////////////////////////////////////////////////////////////
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    ////////////////////////////////// OVERRIDES ///////////////////////////////////
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    ////////////////////////////////////////////////////////////////////////////////
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    /**
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     * {@inheritdoc}
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     */
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    protected function getSortedListeners($event)
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    {
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        $listeners = parent::getSortedListeners($event);
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        $listeners = array_filter($listeners, function (TaggedListener $listener) {
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            return $listener->getTag() === $this->tag || $listener->getTag() === '*';
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        });
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        return $listeners;
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    }
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    /**
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     * {@inheritdoc}
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     */
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    protected function ensureListener($listener)
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    {
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        $listener = parent::ensureListener($listener);
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        $listener = new TaggedListener($listener);
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        $listener->setTag($this->tag);
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        return $listener;
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    }
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}
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