| public get ( string $class, array $params = [], array $config = [] ) : object | ||
| $class | string | the class name or an alias name (e.g. `foo`) that was previously registered via [[set()]] or [[setSingleton()]]. |
| $params | array | a list of constructor parameter values. The parameters should be provided in the order they appear in the constructor declaration. If you want to skip some parameters, you should index the remaining ones with the integers that represent their positions in the constructor parameter list. |
| $config | array | a list of name-value pairs that will be used to initialize the object properties. |
| return | object | an instance of the requested class. |
public function get($class, $params = [], $config = [])
{
if (isset($this->_singletons[$class])) {
// singleton
return $this->_singletons[$class];
} elseif (!isset($this->_definitions[$class])) {
return $this->build($class, $params, $config);
}
$definition = $this->_definitions[$class];
if (is_callable($definition, true)) {
$params = $this->resolveDependencies($this->mergeParams($class, $params));
$object = call_user_func($definition, $this, $params, $config);
} elseif (is_array($definition)) {
$concrete = $definition['class'];
unset($definition['class']);
$config = array_merge($definition, $config);
$params = $this->mergeParams($class, $params);
if ($concrete === $class) {
$object = $this->build($class, $params, $config);
} else {
$object = $this->get($concrete, $params, $config);
}
} elseif (is_object($definition)) {
return $this->_singletons[$class] = $definition;
} else {
throw new InvalidConfigException('Unexpected object definition type: ' . gettype($definition));
}
if (array_key_exists($class, $this->_singletons)) {
// singleton
$this->_singletons[$class] = $object;
}
return $object;
} /**
* @param $from
* @param $to
* @param $data
* @return mixed
*/
public function convert($from, $to, $data)
{
$executor = new Executor();
$decoder = $this->container->get($from);
$encoder = $this->container->get($to);
$executor->setDecodeService($decoder);
$executor->setEncodeService($encoder);
return $executor->transform($data);
}