/**
* Instantiate a Factory object.
*
* @since 1.0.0
*
* @param ConfigInterface $config Configuration settings.
* @param string $element The type of element to instantiate a factory for.
*
* @throws FailedToInstantiateFactory When an unknown element type is requested.
*/
public function __construct(ConfigInterface $config, $element)
{
$this->config = $config;
if (!$this->config->hasKey($element)) {
throw new FailedToInstantiateFactory(sprintf('Could not instantiate Factory for unknown Element Type "%1$s".', $element));
}
$this->element = $element;
}
/**
* Register mapping definitions.
*
* Takes a ConfigInterface and reads the following keys to add definitions:
* - 'sharedAliases'
* - 'standardAliases'
* - 'argumentDefinitions'
* - 'argumentProviders'
* - 'delegations'
* - 'preparations'
*
* @since 0.1.0
*
* @param ConfigInterface $config Config file to parse.
*
* @throws InvalidMappingsException If a needed key could not be read from the config file.
* @throws InvalidMappingsException If the dependency injector could not be set up.
*/
public function registerMappings(ConfigInterface $config)
{
$configKeys = [static::K_STANDARD_ALIASES => 'mapAliases', static::K_SHARED_ALIASES => 'shareAliases', static::K_ARGUMENT_DEFINITIONS => 'defineArguments', static::K_ARGUMENT_PROVIDERS => 'defineArgumentProviders', static::K_DELEGATIONS => 'defineDelegations', static::K_PREPARATIONS => 'definePreparations'];
try {
foreach ($configKeys as $key => $method) {
${$key} = $config->hasKey($key) ? $config->getKey($key) : [];
}
$standardAliases = array_merge($sharedAliases, $standardAliases);
} catch (Exception $exception) {
throw new InvalidMappingsException(sprintf(_('Failed to read needed keys from config. Reason: "%1$s".'), $exception->getMessage()));
}
try {
foreach ($configKeys as $key => $method) {
array_walk(${$key}, [$this, $method]);
}
} catch (Exception $exception) {
throw new InvalidMappingsException(sprintf(_('Failed to set up dependency injector. Reason: "%1$s".'), $exception->getMessage()));
}
}
/**
* Check whether the Config has a specific key.
*
* To get a value several levels deep, add the keys for each level as a comma-separated list.
*
* @since 0.1.2
* @since 0.1.5 Accepts list of keys.
*
* @param string|array $_ List of keys.
*
* @return bool Whether the key is known.
*/
protected function hasConfigKey($_)
{
$keys = func_get_args();
return $this->config->hasKey($keys);
}
