/**
* Loads commands from configuration
*/
private function loadCommandsFile()
{
// Load file.
$bag = new ContainerLessBag();
$commandBag = $this->getCommandBag();
$fileLoader = $this->getServiceBag()->getFileLoader();
$filename = $this->generateConfigFilePath('commands.yml');
$fileLoader->loadFileToBag($filename, 'commands', $bag);
// Resolve parameters.
$fileLoader->resolveParameters($bag, $this->getParameterBag());
$commands = array();
// Instantiate services and load then to the container.
foreach ($bag->values() as $name => $values) {
// Override command name if defined.
$name = isset($values['name']) ? $values['name'] : $name;
// Multiple definitions for the same command, abort.
if (array_key_exists($name, $commands)) {
throw ConfigurationException::multipleCommandDefinitionsException($name);
}
// Check if class is set (null counts as unset).
if (!isset($values['class'])) {
throw ConfigurationException::configurationAttributeNotFoundException($filename, $name, 'class');
}
$class = $values['class'];
$command = $this->instantiateClass($class, array($name));
// Check if correct class.
if (!$command instanceof BaseCommand) {
throw LogicException::mustExtendClassException('BaseCommand', $class);
}
// Add description.
if (isset($values['description'])) {
$command->setDescription($values['description']);
}
$commands[$name] = $command;
}
// Register the command.
foreach ($commands as $name => $command) {
$commandBag->set($name, $command);
}
}
/**
* Resolves parameters in an array using a bag of parameters recursively
*
* @param array $values
* @param BagInterface $parameters
*
* @return array
*
* @throws ConfigurationException
*/
private function resolveParametersRecursively(array $values, BagInterface $parameters)
{
foreach ($values as $key => &$value) {
$placeholder = $this->getPlaceholder($value);
// Resolve directly.
if (is_string($placeholder)) {
if (!$parameters->has($placeholder)) {
throw ConfigurationException::configurationParameterNotFoundException($placeholder);
}
// Set parameter.
$values[$key] = $parameters->get($placeholder);
continue;
}
// Resolve recursively as array.
if (is_array($value)) {
$values[$key] = $this->resolveParametersRecursively($value, $parameters);
continue;
}
}
return $values;
}
