internal static Task <IList <T> > Init <T>(string workingDir, ILogger logger, ILocalizationProvider localizationProvider)
{
IList <T> retT = new List <T>();
foreach (var file in Directory.GetFiles(workingDir, "*Factory*.dll"))
{
var loader = new AssemblyLoader(workingDir, workingDir);
Assembly AssemblyLoader(AssemblyLoadContext context, AssemblyName name)
{
logger.LogInformation($"Try to load assembly {name} for {file}");
// avoid loading *.resources dlls, because of: https://github.com/dotnet/coreclr/issues/8416
if (name.Name.EndsWith("resources"))
{
return(null);
}
logger.LogInformation($"try to load assembly from {workingDir}");
var foundDlls = Directory.GetFileSystemEntries(workingDir, name.Name + ".dll", SearchOption.AllDirectories);
if (foundDlls.Any())
{
return(context.LoadFromAssemblyPath(foundDlls[0]));
}
var secondPath = new FileInfo(Assembly.GetExecutingAssembly().Location).DirectoryName;
logger.LogDebug($"try to load assembly from second path: {secondPath}");
foundDlls = Directory.GetFileSystemEntries(secondPath, name.Name + ".dll", SearchOption.AllDirectories);
if (foundDlls.Any())
{
return(context.LoadFromAssemblyPath(foundDlls[0]));
}
return(context.LoadFromAssemblyName(name));
}
Assembly assembly;
try
{
AssemblyLoadContext.Default.Resolving += AssemblyLoader;
logger.LogInformation($"Loading file {file}");
assembly = loader.LoadFromAssemblyPath(file);
}
catch (Exception e)
{
logger.LogError(e, $"Could not load assembly {file}");
continue;
}
finally
{
AssemblyLoadContext.Default.Resolving -= AssemblyLoader;
}
var resources = assembly.GetManifestResourceNames().SingleOrDefault(a => a.EndsWith("automatica-manifest.json"));
if (resources == null)
{
continue;
}
var manifest = Common.Update.Plugin.GetEmbeddedPluginManifest(logger, assembly);
if (manifest.Automatica.Type == "driver")
{
var drivers = assembly.GetExportedTypes().Where(a => a.IsSubclassOf(typeof(T)));
foreach (var driver in drivers)
{
if (assembly.CreateInstance(driver.FullName) is T factory)
{
retT.Add(factory);
}
}
}
localizationProvider.LoadFromAssembly(assembly);
}
return(Task.FromResult(retT));
}
public Task Load(IDriverFactory factory, IBoardType boardType)
{
try
{
var manifest = Common.Update.Plugin.GetEmbeddedPluginManifest(_logger, factory.GetType().Assembly);
if (manifest == null)
{
throw new NoManifestFoundException();
}
_store.Add(manifest.Automatica.PluginGuid, manifest);
_driverFactoryStore.Add(factory.DriverGuid, factory);
_logger.LogDebug($"Init driver {factory.DriverName} {factory.DriverVersion}...");
var driverDbVersion =
_dbContext.VersionInformations.SingleOrDefault(a => a.DriverGuid == factory.DriverGuid);
var initNodeTemplates = false;
if (driverDbVersion == null)
{
driverDbVersion = new VersionInformation
{
Name = factory.DriverName,
Version = factory.DriverVersion.ToString(),
DriverGuid = factory.DriverGuid
};
initNodeTemplates = true;
_dbContext.VersionInformations.Add(driverDbVersion);
}
else if (factory.DriverVersion > driverDbVersion.VersionData)
{
initNodeTemplates = true;
driverDbVersion.Name = factory.DriverName;
driverDbVersion.Version = factory.DriverVersion.ToString();
}
if (!UsesInterface(boardType, factory))
{
_logger.LogInformation(
$"Ignore {factory.DriverName} because we do not support any of the given interfaces");
return(Task.CompletedTask);
}
_localizationProvider.LoadFromAssembly(factory.GetType().Assembly);
if (initNodeTemplates || factory.InDevelopmentMode)
{
_logger.LogDebug($"InitNodeTemplates for {factory.DriverName}...");
using (var db = new AutomaticaContext(_config))
{
factory.InitNodeTemplates(new NodeTemplateFactory(db, _config));
db.SaveChanges();
}
_logger.LogDebug($"InitNodeTemplates for {factory.DriverName}...done");
}
else
{
factory.InitNodeTemplates(new DoNothingNodeTemplateFactory());
}
_logger.LogDebug($"Init driver {factory.DriverName} {factory.DriverVersion}...done");
_dbContext.SaveChanges();
}
catch (NoManifestFoundException)
{
// ignore
}
catch (Exception e)
{
_logger.LogError($"Could not load driver {factory.DriverName} {e}", e);
}
return(Task.CompletedTask);
}