README

This Symfony bundle adds a make:registry command to the Console. Using this maker will create the building blocks of a specialized Service Registry in your app:

• an Interface describing the type of Service provided by the Registry
• a sample Service implementing the Interface
• a Service Registry configured to register all the services implementing your Interface

Example

Executing php bin/console make:registry OutputFormatter will create the following classes:

// src/OutputFormatter/OutputFormatterInterface.php
<?php

namespace App\OutputFormatter;

use Symfony\Component\DependencyInjection\Attribute\AutoconfigureTag;

#[AutoconfigureTag('app.output_formatter')]
interface OutputFormatterInterface
{
    public function getName(): string;
}

// src/OutputFormatter
<?php

namespace App\OutputFormatter;

class SampleOutputFormatter implements OutputFormatterInterface
{
    public function getName(): string
    {
        return 'sample';
    }
}

// src/OutputFormatter/OutputFormatterRegistry.php
<?php

namespace App\OutputFormatter;

use Symfony\Component\DependencyInjection\Attribute\AsAlias;
use Symfony\Component\DependencyInjection\Attribute\TaggedIterator;

#[AsAlias('app.output_formatter_registry')]
class OutputFormatterRegistry
{
    /**
     * @var array<OutputFormatterInterface>
     */
    private array $services = [];

    public function __construct(
        #[TaggedIterator('app.output_formatter')]
        iterable $services
    ) {
        foreach ($services as $service) {
            if ($service instanceof OutputFormatterInterface) {
                $name = $service->getName();

                if (array_key_exists($name, $this->services)) {
                    $duplicate = $this->services[$name];

                    throw new \LogicException(sprintf('Service name "%s" duplicate between %s and %s.', $name, $duplicate::class, $service::class));
                }
                $this->services[$name] = $service;
            }
        }
    }

    /**
     * @return array<string>
     */
    public function getNames(): array
    {
        return array_keys($this->services);
    }

    /**
     * @return array<OutputFormatterInterface>
     */
    public function getOutputFormatters(): array
    {
        return $this->services;
    }

    public function getOutputFormatter(string $name): OutputFormatterInterface
    {
        if (array_key_exists($name, $this->services)) {
            return $this->services[$name];
        }

        throw new \UnexpectedValueException(sprintf('Cannot find service "%s". Available services are %s.', $name, implode(',', $this->getNames())));
    }
}

Installation

Make sure Composer is installed globally, as explained in the installation chapter of the Composer documentation.

Applications that use Symfony Flex

Open a command console, enter your project directory and execute:

composer require --dev alsciende/make-registry-bundle

Applications that don't use Symfony Flex

Step 1: Download the Bundle

Open a command console, enter your project directory and execute the following command to download the latest stable version of this bundle:

composer require --dev alsciende/make-registry-bundle

Step 2: Enable the Bundle

Then, enable the bundle by adding it to the list of registered bundles in the config/bundles.php file of your project:

// config/bundles.php

return [
    // ...
    Alsciende\Bundle\MakeRegistryBundle\AlsciendeMakeRegistryBundle::class => ['all' => true],
];