class YamlFileLoader in Zircon Profile 8
Same name in this branch
- 8 vendor/symfony/routing/Loader/YamlFileLoader.php \Symfony\Component\Routing\Loader\YamlFileLoader
- 8 vendor/symfony/translation/Loader/YamlFileLoader.php \Symfony\Component\Translation\Loader\YamlFileLoader
- 8 vendor/symfony/dependency-injection/Loader/YamlFileLoader.php \Symfony\Component\DependencyInjection\Loader\YamlFileLoader
- 8 vendor/symfony/validator/Mapping/Loader/YamlFileLoader.php \Symfony\Component\Validator\Mapping\Loader\YamlFileLoader
- 8 vendor/symfony/serializer/Mapping/Loader/YamlFileLoader.php \Symfony\Component\Serializer\Mapping\Loader\YamlFileLoader
- 8 core/lib/Drupal/Core/DependencyInjection/YamlFileLoader.php \Drupal\Core\DependencyInjection\YamlFileLoader
Same name and namespace in other branches
- 8.0 vendor/symfony/dependency-injection/Loader/YamlFileLoader.php \Symfony\Component\DependencyInjection\Loader\YamlFileLoader
YamlFileLoader loads YAML files service definitions.
The YAML format does not support anonymous services (cf. the XML loader).
@author Fabien Potencier <fabien@symfony.com>
Hierarchy
- class \Symfony\Component\DependencyInjection\Loader\FileLoader extends \Symfony\Component\Config\Loader\FileLoader
- class \Symfony\Component\DependencyInjection\Loader\YamlFileLoader
Expanded class hierarchy of YamlFileLoader
3 files declare their use of YamlFileLoader
- Kernel.php in vendor/
symfony/ http-kernel/ Kernel.php - XmlFileLoaderTest.php in vendor/
symfony/ dependency-injection/ Tests/ Loader/ XmlFileLoaderTest.php - YamlFileLoaderTest.php in vendor/
symfony/ dependency-injection/ Tests/ Loader/ YamlFileLoaderTest.php
1 string reference to 'YamlFileLoader'
- TranslatorTest::getTransFileTests in vendor/
symfony/ translation/ Tests/ TranslatorTest.php
File
- vendor/
symfony/ dependency-injection/ Loader/ YamlFileLoader.php, line 33
Namespace
Symfony\Component\DependencyInjection\LoaderView source
class YamlFileLoader extends FileLoader {
private $yamlParser;
/**
* {@inheritdoc}
*/
public function load($resource, $type = null) {
$path = $this->locator
->locate($resource);
$content = $this
->loadFile($path);
$this->container
->addResource(new FileResource($path));
// empty file
if (null === $content) {
return;
}
// imports
$this
->parseImports($content, $path);
// parameters
if (isset($content['parameters'])) {
if (!is_array($content['parameters'])) {
throw new InvalidArgumentException(sprintf('The "parameters" key should contain an array in %s. Check your YAML syntax.', $resource));
}
foreach ($content['parameters'] as $key => $value) {
$this->container
->setParameter($key, $this
->resolveServices($value));
}
}
// extensions
$this
->loadFromExtensions($content);
// services
$this
->parseDefinitions($content, $resource);
}
/**
* {@inheritdoc}
*/
public function supports($resource, $type = null) {
return is_string($resource) && in_array(pathinfo($resource, PATHINFO_EXTENSION), array(
'yml',
'yaml',
), true);
}
/**
* Parses all imports.
*
* @param array $content
* @param string $file
*/
private function parseImports($content, $file) {
if (!isset($content['imports'])) {
return;
}
if (!is_array($content['imports'])) {
throw new InvalidArgumentException(sprintf('The "imports" key should contain an array in %s. Check your YAML syntax.', $file));
}
foreach ($content['imports'] as $import) {
if (!is_array($import)) {
throw new InvalidArgumentException(sprintf('The values in the "imports" key should be arrays in %s. Check your YAML syntax.', $file));
}
$this
->setCurrentDir(dirname($file));
$this
->import($import['resource'], null, isset($import['ignore_errors']) ? (bool) $import['ignore_errors'] : false, $file);
}
}
/**
* Parses definitions.
*
* @param array $content
* @param string $file
*/
private function parseDefinitions($content, $file) {
if (!isset($content['services'])) {
return;
}
if (!is_array($content['services'])) {
throw new InvalidArgumentException(sprintf('The "services" key should contain an array in %s. Check your YAML syntax.', $file));
}
foreach ($content['services'] as $id => $service) {
$this
->parseDefinition($id, $service, $file);
}
}
/**
* Parses a definition.
*
* @param string $id
* @param array $service
* @param string $file
*
* @throws InvalidArgumentException When tags are invalid
*/
private function parseDefinition($id, $service, $file) {
if (is_string($service) && 0 === strpos($service, '@')) {
$this->container
->setAlias($id, substr($service, 1));
return;
}
if (!is_array($service)) {
throw new InvalidArgumentException(sprintf('A service definition must be an array or a string starting with "@" but %s found for service "%s" in %s. Check your YAML syntax.', gettype($service), $id, $file));
}
if (isset($service['alias'])) {
$public = !array_key_exists('public', $service) || (bool) $service['public'];
$this->container
->setAlias($id, new Alias($service['alias'], $public));
return;
}
if (isset($service['parent'])) {
$definition = new DefinitionDecorator($service['parent']);
}
else {
$definition = new Definition();
}
if (isset($service['class'])) {
$definition
->setClass($service['class']);
}
if (isset($service['scope'])) {
$definition
->setScope($service['scope']);
}
if (isset($service['synthetic'])) {
$definition
->setSynthetic($service['synthetic']);
}
if (isset($service['synchronized'])) {
@trigger_error(sprintf('The "synchronized" key of service "%s" in file "%s" is deprecated since version 2.7 and will be removed in 3.0.', $id, $file), E_USER_DEPRECATED);
$definition
->setSynchronized($service['synchronized'], 'request' !== $id);
}
if (isset($service['lazy'])) {
$definition
->setLazy($service['lazy']);
}
if (isset($service['public'])) {
$definition
->setPublic($service['public']);
}
if (isset($service['abstract'])) {
$definition
->setAbstract($service['abstract']);
}
if (isset($service['factory'])) {
if (is_string($service['factory'])) {
if (strpos($service['factory'], ':') !== false && strpos($service['factory'], '::') === false) {
$parts = explode(':', $service['factory']);
$definition
->setFactory(array(
$this
->resolveServices('@' . $parts[0]),
$parts[1],
));
}
else {
$definition
->setFactory($service['factory']);
}
}
else {
$definition
->setFactory(array(
$this
->resolveServices($service['factory'][0]),
$service['factory'][1],
));
}
}
if (isset($service['factory_class'])) {
@trigger_error(sprintf('The "factory_class" key of service "%s" in file "%s" is deprecated since version 2.6 and will be removed in 3.0. Use "factory" instead.', $id, $file), E_USER_DEPRECATED);
$definition
->setFactoryClass($service['factory_class']);
}
if (isset($service['factory_method'])) {
@trigger_error(sprintf('The "factory_method" key of service "%s" in file "%s" is deprecated since version 2.6 and will be removed in 3.0. Use "factory" instead.', $id, $file), E_USER_DEPRECATED);
$definition
->setFactoryMethod($service['factory_method']);
}
if (isset($service['factory_service'])) {
@trigger_error(sprintf('The "factory_service" key of service "%s" in file "%s" is deprecated since version 2.6 and will be removed in 3.0. Use "factory" instead.', $id, $file), E_USER_DEPRECATED);
$definition
->setFactoryService($service['factory_service']);
}
if (isset($service['file'])) {
$definition
->setFile($service['file']);
}
if (isset($service['arguments'])) {
$definition
->setArguments($this
->resolveServices($service['arguments']));
}
if (isset($service['properties'])) {
$definition
->setProperties($this
->resolveServices($service['properties']));
}
if (isset($service['configurator'])) {
if (is_string($service['configurator'])) {
$definition
->setConfigurator($service['configurator']);
}
else {
$definition
->setConfigurator(array(
$this
->resolveServices($service['configurator'][0]),
$service['configurator'][1],
));
}
}
if (isset($service['calls'])) {
if (!is_array($service['calls'])) {
throw new InvalidArgumentException(sprintf('Parameter "calls" must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
foreach ($service['calls'] as $call) {
if (isset($call['method'])) {
$method = $call['method'];
$args = isset($call['arguments']) ? $this
->resolveServices($call['arguments']) : array();
}
else {
$method = $call[0];
$args = isset($call[1]) ? $this
->resolveServices($call[1]) : array();
}
$definition
->addMethodCall($method, $args);
}
}
if (isset($service['tags'])) {
if (!is_array($service['tags'])) {
throw new InvalidArgumentException(sprintf('Parameter "tags" must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
foreach ($service['tags'] as $tag) {
if (!is_array($tag)) {
throw new InvalidArgumentException(sprintf('A "tags" entry must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
if (!isset($tag['name'])) {
throw new InvalidArgumentException(sprintf('A "tags" entry is missing a "name" key for service "%s" in %s.', $id, $file));
}
$name = $tag['name'];
unset($tag['name']);
foreach ($tag as $attribute => $value) {
if (!is_scalar($value) && null !== $value) {
throw new InvalidArgumentException(sprintf('A "tags" attribute must be of a scalar-type for service "%s", tag "%s", attribute "%s" in %s. Check your YAML syntax.', $id, $name, $attribute, $file));
}
}
$definition
->addTag($name, $tag);
}
}
if (isset($service['decorates'])) {
$renameId = isset($service['decoration_inner_name']) ? $service['decoration_inner_name'] : null;
$definition
->setDecoratedService($service['decorates'], $renameId);
}
$this->container
->setDefinition($id, $definition);
}
/**
* Loads a YAML file.
*
* @param string $file
*
* @return array The file content
*
* @throws InvalidArgumentException when the given file is not a local file or when it does not exist
*/
protected function loadFile($file) {
if (!class_exists('Symfony\\Component\\Yaml\\Parser')) {
throw new RuntimeException('Unable to load YAML config files as the Symfony Yaml Component is not installed.');
}
if (!stream_is_local($file)) {
throw new InvalidArgumentException(sprintf('This is not a local file "%s".', $file));
}
if (!file_exists($file)) {
throw new InvalidArgumentException(sprintf('The service file "%s" is not valid.', $file));
}
if (null === $this->yamlParser) {
$this->yamlParser = new YamlParser();
}
try {
$configuration = $this->yamlParser
->parse(file_get_contents($file));
} catch (ParseException $e) {
throw new InvalidArgumentException(sprintf('The file "%s" does not contain valid YAML.', $file), 0, $e);
}
return $this
->validate($configuration, $file);
}
/**
* Validates a YAML file.
*
* @param mixed $content
* @param string $file
*
* @return array
*
* @throws InvalidArgumentException When service file is not valid
*/
private function validate($content, $file) {
if (null === $content) {
return $content;
}
if (!is_array($content)) {
throw new InvalidArgumentException(sprintf('The service file "%s" is not valid. It should contain an array. Check your YAML syntax.', $file));
}
foreach ($content as $namespace => $data) {
if (in_array($namespace, array(
'imports',
'parameters',
'services',
))) {
continue;
}
if (!$this->container
->hasExtension($namespace)) {
$extensionNamespaces = array_filter(array_map(function ($ext) {
return $ext
->getAlias();
}, $this->container
->getExtensions()));
throw new InvalidArgumentException(sprintf('There is no extension able to load the configuration for "%s" (in %s). Looked for namespace "%s", found %s', $namespace, $file, $namespace, $extensionNamespaces ? sprintf('"%s"', implode('", "', $extensionNamespaces)) : 'none'));
}
}
return $content;
}
/**
* Resolves services.
*
* @param string|array $value
*
* @return array|string|Reference
*/
private function resolveServices($value) {
if (is_array($value)) {
$value = array_map(array(
$this,
'resolveServices',
), $value);
}
elseif (is_string($value) && 0 === strpos($value, '@=')) {
return new Expression(substr($value, 2));
}
elseif (is_string($value) && 0 === strpos($value, '@')) {
if (0 === strpos($value, '@@')) {
$value = substr($value, 1);
$invalidBehavior = null;
}
elseif (0 === strpos($value, '@?')) {
$value = substr($value, 2);
$invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;
}
else {
$value = substr($value, 1);
$invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;
}
if ('=' === substr($value, -1)) {
$value = substr($value, 0, -1);
$strict = false;
}
else {
$strict = true;
}
if (null !== $invalidBehavior) {
$value = new Reference($value, $invalidBehavior, $strict);
}
}
return $value;
}
/**
* Loads from Extensions.
*
* @param array $content
*/
private function loadFromExtensions($content) {
foreach ($content as $namespace => $values) {
if (in_array($namespace, array(
'imports',
'parameters',
'services',
))) {
continue;
}
if (!is_array($values)) {
$values = array();
}
$this->container
->loadFromExtension($namespace, $values);
}
}
}
Members
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
FileLoader:: |
protected | property | ||
FileLoader:: |
public | function | Constructor. | |
YamlFileLoader:: |
private | property | ||
YamlFileLoader:: |
public | function | ||
YamlFileLoader:: |
protected | function | Loads a YAML file. | |
YamlFileLoader:: |
private | function | Loads from Extensions. | |
YamlFileLoader:: |
private | function | Parses a definition. | |
YamlFileLoader:: |
private | function | Parses definitions. | |
YamlFileLoader:: |
private | function | Parses all imports. | |
YamlFileLoader:: |
private | function | Resolves services. | |
YamlFileLoader:: |
public | function | ||
YamlFileLoader:: |
private | function | Validates a YAML file. |