public void StartActivator(IBundleContext context)
{
var path = AppDomain.CurrentDomain.SetupInformation.ApplicationName;
var name = AssemblyName.GetAssemblyName(path);
context.ChangeBundleState(name.Name, BundleState.Starting);
// load the assembly in the AppDomain
var assembly = AppDomain.CurrentDomain.Load(name);
// get the meta-data of the bundle
var activatorAttribute = (BundleActivatorAttribute)assembly.GetCustomAttributes(typeof(BundleActivatorAttribute), false).FirstOrDefault();
var dependencyAttributes = assembly.GetCustomAttributes(typeof(BundleDependencyAttribute), false).Cast<BundleDependencyAttribute>();
// if there's some dependencies, load them
if (dependencyAttributes != null)
{
foreach (var bundle in dependencyAttributes)
{
var existingBundle = context.GetBundle(bundle.Name);
if (existingBundle == null)
{
throw new BundleNotFoundException(bundle.Name, bundle.Version);
}
else
{
if (existingBundle.Version != bundle.Version)
{
throw new InvalidBundleVersionException(bundle.Name, bundle.Version, existingBundle.Version);
}
else if (existingBundle.State == BundleState.Installed)
{
BundleController.Start(context, bundle.Name);
}
else if (existingBundle.State == BundleState.Resolved)
{
BundleController.Start(context, bundle.Name);
}
else if (existingBundle.State == BundleState.Starting)
{
BundleController.WaitFor(context, bundle.Name, BundleState.Active);
}
else if (existingBundle.State == BundleState.Stopping)
{
BundleController.WaitFor(context, bundle.Name, BundleState.Resolved);
BundleController.Start(context, bundle.Name);
}
else if (existingBundle.State == BundleState.Uninstalled)
throw new BundleIsBeingUninstalledException(existingBundle.Name, existingBundle.Version);
logger.InfoFormat("Loading dependency: {0}", bundle);
}
}
}
// create a new instance of the activator
var activatorType = Type.GetType(activatorAttribute.Activator.AssemblyQualifiedName);
var ctor = activatorType.GetConstructor(new Type[0]);
this.instance = (IBundleActivator)ctor.Invoke(new object[0]);
// start the bundle
ThreadPool.QueueUserWorkItem(new WaitCallback((o) => ((IBundleActivator)o).Start()), this.instance);
context.ChangeBundleState(name.Name, BundleState.Active);
}
public static void Stop(IBundleContext context, string bundleName)
{
var bundle = context.GetBundle(bundleName);
if (bundle == null)
{
logger.InfoFormat("Application {0} not loaded", bundleName);
return;
}
context.ChangeBundleState(bundle.Name, BundleState.Stopping);
bundle.Boostrap.StopActivator(context);
context.ChangeBundleState(bundle.Name, BundleState.Resolved);
AppDomain.Unload(bundle.AppDomain);
}
