1 | <?php |
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2 | /** |
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3 | * Service dispatcher init |
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4 | * User: moyo |
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5 | * Date: 13/12/2017 |
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6 | * Time: 10:48 AM |
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7 | */ |
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8 | |||
9 | namespace Carno\HRPC\Components; |
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10 | |||
11 | use Carno\Console\App; |
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12 | use Carno\Console\Component; |
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13 | use Carno\Console\Contracts\Application; |
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14 | use Carno\Console\Contracts\Bootable; |
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15 | use Carno\Container\DI; |
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16 | use Carno\Promise\Promise; |
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17 | use Carno\RPC\Service\Dispatcher as RDispatcher; |
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18 | use Carno\RPC\Service\Scanner; |
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19 | use Throwable; |
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20 | |||
21 | class Dispatcher extends Component implements Bootable |
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22 | { |
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23 | /** |
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24 | * @var array |
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25 | */ |
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26 | protected $dependencies = [Scanner::class]; |
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27 | |||
28 | /** |
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29 | * @param Application|App $app |
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30 | */ |
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31 | public function starting(Application $app) : void |
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32 | { |
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33 | /** |
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34 | * @var RDispatcher $dispatcher |
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35 | */ |
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36 | |||
37 | $dispatcher = DI::set(RDispatcher::class, DI::object(RDispatcher::class)); |
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38 | |||
39 | $started = $app->starting()->done(); |
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40 | $shutdown = Promise::deferred(); |
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41 | |||
42 | $app->starting()->add(static function () use ($dispatcher, $started, $shutdown) { |
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43 | $dispatcher->preparing($started, $shutdown)->catch(function (Throwable $e) { |
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44 | logger('hrpc')->error( |
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45 | 'Service startup failed when initialize', |
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46 | ['ec' => get_class($e), 'em' => $e->getMessage()] |
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47 | ); |
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48 | }); |
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49 | }); |
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50 | |||
51 | $app->stopping()->add(static function () use ($shutdown) { |
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52 | $shutdown->resolve(); |
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53 | }); |
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54 | } |
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55 | } |
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56 |
Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/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 beforeOtherDir/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: