Add support for laravel octane (#12)

* Add support for laravel octane, by keeping the resolved Producer and Consumer service container will keep the connection active for all requests coming to the same worker

* readme update

* reverted the consumer connection property

* indentation fix

* testcase added for producer reusability

---------

Co-authored-by: Syed Sirajul Islam Anik <sirajul.islam.anik@gmail.com>

readme.md

@@ -84,6 +84,21 @@ name.
 - `amqp.connections.*.consumer` holds the default properties of consumer when consuming.
 - `amqp.connections.*.qos` holds the default properties of QoS when consuming.
 
+### Octane support
+
+This package supports laravel octane by
+default. [To keep the AMQP connection alive](https://www.cloudamqp.com/blog/part4-rabbitmq-13-common-errors.html),
+you have to configure octane to `warm` the connection, by adding **'amqp'** to the warm array in octane configurations.
+
+```php
+// config/octane.php
+// ... 
+'warm' => [
+    // ... 
+    'amqp', // <-- this line
+],
+```
+
 ## Usage
 
 The followings work the same.
@@ -274,6 +289,7 @@ class MyTest extends TestCase
         - If a message exactly matches the `$message`.
         - If a message exactly matches the `get_class($message)`.
         - If a message is an implementation of `$message`.
+
 ### Note
 
 Using `Anik\Laravel\Amqp\Facades\Amqp::consume()` after `Anik\Laravel\Amqp\Facades\Amqp::fake()` will throw exception.

src/Amqp.php

@@ -20,6 +20,8 @@ class Amqp implements AmqpPubSub
 
     private $config;
 
+    private Producer $producer;
+
     public function __construct(AbstractConnection $connection, array $config = [])
     {
         $this->connection = $connection;
@@ -28,7 +30,7 @@ public function __construct(AbstractConnection $connection, array $config = [])
 
     public function getProducer(): Producer
     {
-        return app()->make(Producer::class, ['connection' => $this->connection]);
+        return $this->producer ??= app()->make(Producer::class, ['connection' => $this->connection]);
     }
 
     public function getConsumer(array $options = []): Consumer

tests/AmqpTest.php

@@ -347,7 +347,7 @@ public static function consumerConfigTestDataProvider(): array
     /**
      * @dataProvider publishMessageTestDataProvider
      *
-     * @param array $data
+     * @param  array  $data
      */
     public function testPublishFormatsMessagesToProducible(array $data)
     {
@@ -432,7 +432,7 @@ public function testPublishPassesExpectedRoutingKey()
     /**
      * @dataProvider publishOptionsDataProvider
      *
-     * @param array $data
+     * @param  array  $data
      */
     public function testPublishPassesPublishOptionsIfAvailable(array $data)
     {
@@ -471,7 +471,7 @@ function ($options) use ($expectations) {
     /**
      * @dataProvider exchangeTestDataProvider
      *
-     * @param array $data
+     * @param  array  $data
      */
     public function testPublishMessageProcessesExchange(array $data)
     {
@@ -511,6 +511,33 @@ function ($options) use ($expectation) {
              );
     }
 
+    public function testReusesResolvedProducer()
+    {
+        $this->bindProducerToApp($producer = $this->getProducerMock($this->connection));
+
+        $producer->expects($this->exactly(2))->method('publishBatch');
+
+        $amqp = $this->getAmqpInstance(null, ['exchange' => ['name' => self::EXCHANGE_NAME, 'type' => 'topic']]);
+        $amqp->publish(
+            'my message',
+            'my-binding-key',
+            $data['exchange'] ?? null,
+            $data['options'] ?? []
+        );
+
+        // Bind new producer to the container
+        $this->bindProducerToApp($producer2 = $this->getProducerMock($this->connection));
+        // This producer should never be called as the previous producer is already stored in the class.
+        $producer2->expects($this->never())->method('publishBatch');
+
+        $amqp->publish(
+            'my another message',
+            'my-binding-key',
+            $data['exchange'] ?? null,
+            $data['options'] ?? []
+        );
+    }
+
     public function testConsumeHandlerIsChangesCallableToConsumable()
     {
         $this->bindConsumerToApp($consumer = $this->getConsumerMock($this->connection));
@@ -563,7 +590,7 @@ function () {
     /**
      * @dataProvider exchangeTestDataProvider
      *
-     * @param array $data
+     * @param  array  $data
      */
     public function testConsumerProcessesExchange(array $data)
     {
@@ -611,7 +638,7 @@ function () {
     /**
      * @dataProvider queueTestDataProvider
      *
-     * @param array $data
+     * @param  array  $data
      */
     public function testConsumerProcessesQueue(array $data)
     {
@@ -659,7 +686,7 @@ function () {
     /**
      * @dataProvider qosTestDataProvider
      *
-     * @param array $data
+     * @param  array  $data
      */
     public function testConsumerProcessesQos(array $data)
     {
@@ -714,7 +741,7 @@ function () {
     /**
      * @dataProvider queueBindTestDataProvider
      *
-     * @param array $data
+     * @param  array  $data
      */
     public function testConsumerProcessesQueueBind(array $data)
     {
@@ -762,7 +789,7 @@ function () {
     /**
      * @dataProvider consumerConfigTestDataProvider
      *
-     * @param array $data
+     * @param  array  $data
      */
     public function testConsumerProcessesConsumerConfig(array $data)
     {