Access json metadata from the plugin itself.

[Petross404_Petros S]

Hello to all.

I want to ask if I can access the metadata of the json file that is used with Q_PLUGIN_METADATA() in the same class that used this macro. I know I can access it with QPluginLoader::metaData() but I want to read these entries in my plugin during construction.

Let me explain:

I am having an abstract interface like this:

class IDriver //apparently no QObject inheritance here
{
public:
	IDriver();
...
};
#define IDriver_iid "org.qt.IDriver"

Q_DECLARE_INTERFACE( Process::IDriver, IDriver_iid )

IDriver is derived by Driver:

/*!
 * `Driver` is a concrete class for the `IDriver`. It defines some generic
 * fuctions for the derived `NmDriver` and `ScanelfDriver`.
 */
class Driver: public QProcess, public Process::IDriver
{
	Q_OBJECT
	Q_DISABLE_COPY_MOVE( Driver )
public:
	Driver( QObject* parent = nullptr );
	Driver( QString program, QStringList defArgList, QObject* parent );
...
};

Driver also derives from QProcess and provides the base class for my plugins (NmDriver and ScanelfDriver):

class NmDriver: public Driver // The same applies for ScanelfDriver too
{
	Q_OBJECT
	Q_PLUGIN_METADATA( IID "NmDriver" FILE "nmplugin.json" )
	Q_INTERFACES( Process::IDriver )

	Q_DISABLE_COPY_MOVE( NmDriver )

public:
	NmDriver( QObject* parent = nullptr );
...
};

I can access my json entries easily using QPluginLoader::metaData() but I want to initialize some member variables of my plugins, with the data inside my json files. Like:

NmDriver::NmDriver( QObject* parent )
	: Driver{ myJsonArgsFromMetadataMacro, parent }
{...

My question is this: How can I access the json file that the Q_PLUGIN_METADATA() used, inside the same class (ie my plugin)? If it possible at all ofcourse.

Thank you very much.