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Cumulative Resources

This resource type provides a way to load configuration from any bundle without an additional registration of configuration files in each bundle.

For example, to load configuration for your current bundle from the Resourcesconfigacme.yml file in a different bundle, you can allow other bundles to provide additional configuration. In this case, a bundle that requires this configuration can use CumulativeConfigLoader, as illustrated below:

AcmeBundleSomeBundleDependencyInjection;

 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader;
 use Symfony\Component\HttpKernel\DependencyInjection\Extension;

 use Oro\Component\Config\Loader\ContainerBuilderAdapter;
 use Oro\Component\Config\Loader\CumulativeConfigLoader;
 use Oro\Component\Config\Loader\YamlCumulativeFileLoader;

 class AcmeSomeExtension extends Extension
 {
     public function load(array $configs, ContainerBuilder $container)
     {
         // load configuration from acme.yml which can be located in any bundle
         $acmeConfig = [];
         $configLoader = new CumulativeConfigLoader(
             'acme_config',
             new YamlCumulativeFileLoader('Resources/config/acme.yml')
         );
         $resources = $configLoader->load(new ContainerBuilderAdapter($container));
         foreach ($resources as $resource) {
             $acmeConfig = array_merge($acmeConfig, $resource->data);
         }
         $container->setParameter('acme_some.configuration', $acmeConfig);

         // load container configuration
         $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
         $loader->load('services.yml');
     }
 }

Initialization

The Cumulative Resources routine needs to be initialized in your application Kernel class before you can use it. The initialization steps include clearing the state of CumulativeResourceManager, which should be done before constructors of any bundle are called. The following example shows how it is done in OroPlatform:

OroBundleDistributionBundle;

 use Oro\Component\Config\CumulativeResourceManager;
 use Symfony\Component\HttpKernel\Kernel;

 abstract class OroKernel extends Kernel
 {
     protected function initializeBundles()
     {
         parent::initializeBundles();

         // pass bundles to CumulativeResourceManager
         $bundles = [];
         foreach ($this->bundles as $name => $bundle) {
             $bundles[$name] = get_class($bundle);
         }
         CumulativeResourceManager::getInstance()->setBundles($bundles);
     }

     public function registerBundles()
     {
         // clear state of CumulativeResourceManager
         CumulativeResourceManager::getInstance()->clear();

         ...
     }

     ...
 }

Resource Loaders

As well as the Symfony Config Component, the Oro Config Component uses its own loader for each resource type. Currently, the following loaders are implemented:

• YAML file loader is responsible for loading YAML files. Do not provide any normalization or validation of loaded data.

• "Foldering" file loader provides a way to load a configuration file in a folder that conforms to a particular pattern.

Examples

1. Load configuration from different file types, for example, YAML and XML:

class AcmeSomeExtension extends Extension
{
    public function load(array $configs, ContainerBuilder $container)
    {
        $acmeConfig = [];
        $configLoader = new CumulativeConfigLoader(
            'acme_config',
            [
                new YamlCumulativeFileLoader('Resources/config/acme.yml')
                new MyXmlCumulativeFileLoader('Resources/config/acme.xml')
            ]
        );
        $resources = $configLoader->load(new ContainerBuilderAdapter($container));
        foreach ($resources as $resource) {
            $acmeConfig = array_merge($acmeConfig, $resource->data);
        }
    }
}

2. Load configuration from different files:

class AcmeSomeExtension extends Extension
{
    public function load(array $configs, ContainerBuilder $container)
    {
        $acmeConfig = [
            'foo' => [],
            'bar' => []
        ];
        $configLoader = new CumulativeConfigLoader(
            'acme_config',
            [
                new YamlCumulativeFileLoader('Resources/config/foo.yml')
                new YamlCumulativeFileLoader('Resources/config/bar.yml')
            ]
        );
        $resources = $configLoader->load(new ContainerBuilderAdapter($container));
        foreach ($resources as $resource) {
            $acmeConfig[$resource->name] = array_merge($acmeConfig[$resource->name], $resource->data);
        }
    }
}

3. Load configuration files located in different folders:

class AcmeSomeExtension extends Extension
{
    public function load(array $configs, ContainerBuilder $container)
    {
        $acmeConfig = [];
        $configLoader = new CumulativeConfigLoader(
            'acme_config',
            new FolderingCumulativeFileLoader(
                '{folder}', // placeholder name
                '\w+',      // regex pattern the folder should conform
                new YamlCumulativeFileLoader('Resources/config/widgets/{folder}/widget.yml')
            )
        );
        $resources = $configLoader->load(new ContainerBuilderAdapter($container));
        foreach ($resources as $resource) {
            $folderName = basename(dirname($resource->path));
            $acmeConfig[$folderName] = $resource->data;
        }
    }
}

5. YML inheritance

You can use inheritance in .yml files, for example:

imports:
    - { resource: 'child1.yml' }
    - { resource: 'child2.yml' }