Completed
Push — master ( f61059...fbff81 )
by Peter
05:40
created

ExecutingCommandQueue::subscribe()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 3
CRAP Score 1

Importance

Changes 0
Metric Value
dl 0
loc 4
c 0
b 0
f 0
ccs 3
cts 3
cp 1
rs 10
cc 1
eloc 2
nc 1
nop 1
crap 1
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<?php
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/**
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 * GpsLab component.
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 *
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 * @author    Peter Gribanov <[email protected]>
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 * @copyright Copyright (c) 2011, Peter Gribanov
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 * @license   http://opensource.org/licenses/MIT
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 */
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namespace GpsLab\Component\Command\Queue\PubSub;
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use GpsLab\Component\Command\Command;
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class ExecutingCommandQueue implements CommandQueue
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{
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    /**
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     * @var callable|null
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     */
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    private $callback;
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    /**
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     * Publish command to queue.
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     *
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     * @param Command $command
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     *
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     * @return bool
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     */
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    public function publish(Command $command)
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    {
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        // absence of a subscriber is not a error
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        if (is_callable($this->callback)) {
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            call_user_func($this->callback, $command);
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        }
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        return true;
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    }
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    /**
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     * Subscribe on command queue.
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     *
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     * @param callable $callback
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     */
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    public function subscribe(callable $callback)
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    {
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        $this->callback = $callback;
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    }
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}
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