public virtual object CreateRemoteInstance(IPluginActivationContext pluginActivationContext, IPluginBootstrapper bootstrapper = null, IServiceCollection hostServices = null)
{
var pluginType = pluginActivationContext.PluginType;
var pluginAssembly = pluginActivationContext.PluginAssembly;
var factoryMethod = pluginActivationContext.PluginFactoryMethod;
var contructors = pluginType.GetConstructors(BindingFlags.Public | BindingFlags.Instance);
if (contructors.Count() > 1)
{
throw new PluginActivationException($"Multiple public constructors found for remote plugin {pluginType.Name}");
}
var serviceProvider = AddToDisposables(GetServiceProviderForPlugin(new ServiceCollection(), bootstrapper, hostServices ?? new ServiceCollection())) as IServiceProvider;
if (factoryMethod != null)
{
return(AddToDisposables(factoryMethod.Invoke(null, new[] { serviceProvider })));
}
var firstCtor = contructors.FirstOrDefault();
if (firstCtor != null && !firstCtor.GetParameters().Any()) // Empty default CTOR
{
var pluginServiceProvider = AddToDisposables(serviceProvider.GetService <IPluginServiceProvider>()) as IPluginServiceProvider;
var remoteInstance = pluginAssembly.Assembly.CreateInstance(pluginType.FullName);
remoteInstance = InjectPluginFieldsWithServices(remoteInstance, pluginServiceProvider, pluginActivationContext.PluginServices);
ActivateIfNecessary(remoteInstance, pluginActivationContext);
return(AddToDisposables(remoteInstance));
}
throw new PluginActivationException($"Plugin of type {pluginType.Name} could not be activated.");
}
public virtual object CreateRemoteBootstrapper(IPluginActivationContext pluginActivationContext, IServiceCollection hostServices = null)
{
var bootstrapperType = pluginActivationContext.PluginBootstrapperType;
var assembly = pluginActivationContext.PluginAssembly.Assembly;
var bootstrapperServices = pluginActivationContext.BootstrapperServices;
var contructors = bootstrapperType.GetConstructors(BindingFlags.Public | BindingFlags.Instance);
var firstCtor = contructors.First();
if (!contructors.Any())
{
throw new PluginActivationException($"No public constructors found for remote bootstrapper {bootstrapperType.Name}");
}
if (firstCtor.GetParameters().Any())
{
throw new PluginActivationException($"Bootstrapper {bootstrapperType.Name} must contain a public parameterless constructor");
}
var bootstrapperInstance = assembly.CreateInstance(bootstrapperType.FullName);
var serviceProvider = AddToDisposables(GetServiceProviderForBootstrapper(new ServiceCollection(), hostServices ?? new ServiceCollection())) as IServiceProvider;
var bootstrapperServiceProvider = AddToDisposables(serviceProvider.GetService <IBootstrapperServiceProvider>()) as IBootstrapperServiceProvider;
bootstrapperInstance = InjectBootstrapperFieldsWithServices(bootstrapperInstance, bootstrapperServiceProvider, bootstrapperServices);
return(AddToDisposables(bootstrapperInstance));
}
protected virtual void ActivateIfNecessary(object remoteInstance, IPluginActivationContext pluginActivationContext)
{
var pluginType = pluginActivationContext.PluginType;
if (pluginActivationContext.PluginActivatedMethod == null)
{
return;
}
var remoteActivationMethod = remoteInstance.GetType().GetRuntimeMethods().FirstOrDefault(m => m.Name == pluginActivationContext.PluginActivatedMethod.Name);
if (remoteActivationMethod == null)
{
throw new PluginActivationException($"Remote activation method {pluginActivationContext.PluginActivatedMethod.Name} not found for plugin {pluginType.Name} on remote object {remoteInstance.GetType().Name}");
}
remoteActivationMethod.Invoke(remoteInstance, null);
}