private T LoadPlugin <T>(string dllFileName)
{
Type interfaceType = typeof(T);
try
{
var pluginPath = Path.Combine(GetPluginFolderPath(), dllFileName);
if (!File.Exists(pluginPath))
{
pluginPath = Path.Combine(GetPluginFolderPath(usePluginSubfolder: false), dllFileName);
}
if (File.Exists(pluginPath))
{
// https://stackoverflow.com/questions/10732933/can-i-use-activator-createinstance-with-an-interface
var pluginAssembly = Assembly.LoadFrom(pluginPath);
var exportedTypes = pluginAssembly.GetExportedTypes();
var pluginType = pluginAssembly.GetTypes()
.Where(type => type.GetInterfaces()
.Any(inter => inter.IsAssignableFrom(interfaceType)))
.FirstOrDefault();
var obj = (T)Activator.CreateInstance(pluginType);
return(obj);
}
else
{
_log?.Warning($"Plugin Load Failed [{interfaceType}] File does not exist: {dllFileName}");
}
}
catch (ReflectionTypeLoadException ex)
{
_log?.Warning($"Plugin Load Failed [{interfaceType}] :: {dllFileName} [Reflection or Loader Error]");
_log.Error(ex.ToString());
foreach (var loaderEx in ex.LoaderExceptions)
{
_log.Error(loaderEx.ToString());
}
}
catch (Exception exp)
{
_log?.Error(exp.ToString());
}
return(default);
private T LoadPlugin <T>(string dllFileName, Type interfaceType)
{
try
{
var pluginPath = GetPluginFolderPath() + "\\" + dllFileName;
if (File.Exists(pluginPath))
{
// https://stackoverflow.com/questions/10732933/can-i-use-activator-createinstance-with-an-interface
var loadedType = (from t in Assembly.LoadFrom(pluginPath).GetExportedTypes()
where !t.IsInterface && !t.IsAbstract
where interfaceType.IsAssignableFrom(t)
select t)
.FirstOrDefault();
var obj = (T)Activator.CreateInstance(loadedType);
return(obj);
}
else
{
_log?.Warning($"Plugin Load Failed [{interfaceType}] File does not exist: {dllFileName}");
}
}
catch (Exception exp)
{
_log?.Error(exp.ToString());
}
return(default(T));
}