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<?php |
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declare(strict_types = 1); |
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namespace Innmind\AMQP\Client; |
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use Innmind\AMQP\{ |
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Client, |
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Model\Exchange\Declaration as Exchange, |
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Model\Queue\Declaration as Queue, |
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Model\Queue\Binding, |
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}; |
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use Innmind\Immutable\{ |
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SetInterface, |
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Set, |
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}; |
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final class AutoDeclare implements Client |
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{ |
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private $client; |
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private $exchanges; |
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private $queues; |
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private $bindings; |
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private $declared = false; |
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/** |
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* @param SetInterface<Exchange>|null $exchanges |
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* @param SetInterface<Queue>|null $queues |
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* @param SetInterface<Binding>|null $bindings |
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*/ |
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public function __construct( |
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Client $client, |
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SetInterface $exchanges = null, |
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SetInterface $queues = null, |
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SetInterface $bindings = null |
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) { |
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$this->client = $client; |
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$this->exchanges = $exchanges ?? Set::of(Exchange::class); |
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$this->queues = $queues ?? Set::of(Queue::class); |
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$this->bindings = $bindings ?? Set::of(Binding::class); |
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if ((string) $this->exchanges->type() !== Exchange::class) { |
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throw new \TypeError(sprintf( |
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'Argument 2 must be of type SetInterface<%s>', |
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Exchange::class |
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)); |
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} |
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if ((string) $this->queues->type() !== Queue::class) { |
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throw new \TypeError(sprintf( |
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'Argument 3 must be of type SetInterface<%s>', |
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Queue::class |
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)); |
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} |
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if ((string) $this->bindings->type() !== Binding::class) { |
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throw new \TypeError(sprintf( |
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'Argument 4 must be of type SetInterface<%s>', |
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Binding::class |
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)); |
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} |
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} |
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public function channel(): Channel |
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{ |
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$channel = $this->client->channel(); |
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$this->declareThrough($channel); |
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return $channel; |
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} |
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public function closed(): bool |
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{ |
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return $this->client->closed(); |
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} |
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public function close(): void |
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{ |
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$this->client->close(); |
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$this->declared = true; |
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} |
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private function declareThrough(Channel $channel): void |
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{ |
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if ($this->declared) { |
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return; |
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} |
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$exchange = $channel->exchange(); |
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$queue = $channel->queue(); |
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$this->exchanges->foreach(static function(Exchange $command) use ($exchange): void { |
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$exchange->declare($command); |
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}); |
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$this->queues->foreach(static function(Queue $command) use ($queue): void { |
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$queue->declare($command); |
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}); |
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$this->bindings->foreach(static function(Binding $command) use ($queue): void { |
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$queue->bind($command); |
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}); |
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$this->declared = true; |
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} |
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} |
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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: