/// <summary>
/// Boots the runtime within a timer.
/// </summary>
protected virtual IFactory Boot(IRegister register, DisposableTimer timer)
{
Composition composition = null;
try
{
// Setup event listener
UnattendedInstalled += CoreRuntime_UnattendedInstalled;
// throws if not full-trust
new AspNetHostingPermission(AspNetHostingPermissionLevel.Unrestricted).Demand();
// run handlers
RuntimeOptions.DoRuntimeBoot(ProfilingLogger);
// application caches
var appCaches = GetAppCaches();
// database factory
var databaseFactory = GetDatabaseFactory();
// configs
var configs = GetConfigs();
// type loader
var typeLoader = new TypeLoader(appCaches.RuntimeCache, configs.Global().LocalTempPath, ProfilingLogger);
// runtime state
// beware! must use '() => _factory.GetInstance<T>()' and NOT '_factory.GetInstance<T>'
// as the second one captures the current value (null) and therefore fails
_state = new RuntimeState(Logger,
configs.Settings(), configs.Global(),
new Lazy <IMainDom>(() => _factory.GetInstance <IMainDom>()),
new Lazy <IServerRegistrar>(() => _factory.GetInstance <IServerRegistrar>()))
{
Level = RuntimeLevel.Boot
};
// TODO: remove this in netcore, this is purely backwards compat hacks with the empty ctor
if (MainDom == null)
{
MainDom = new MainDom(Logger, new MainDomSemaphoreLock(Logger));
}
// create the composition
composition = new Composition(register, typeLoader, ProfilingLogger, _state, configs);
composition.RegisterEssentials(Logger, Profiler, ProfilingLogger, MainDom, appCaches, databaseFactory, typeLoader, _state);
// run handlers
RuntimeOptions.DoRuntimeEssentials(composition, appCaches, typeLoader, databaseFactory);
// register runtime-level services
// there should be none, really - this is here "just in case"
Compose(composition);
// acquire the main domain - if this fails then anything that should be registered with MainDom will not operate
AcquireMainDom(MainDom);
// determine our runtime level
DetermineRuntimeLevel(databaseFactory, ProfilingLogger);
// get composers, and compose
var composerTypes = ResolveComposerTypes(typeLoader);
IEnumerable <Attribute> enableDisableAttributes;
using (ProfilingLogger.DebugDuration <CoreRuntime>("Scanning enable/disable composer attributes"))
{
enableDisableAttributes = typeLoader.GetAssemblyAttributes(typeof(EnableComposerAttribute), typeof(DisableComposerAttribute));
}
var composers = new Composers(composition, composerTypes, enableDisableAttributes, ProfilingLogger);
composers.Compose();
// create the factory
_factory = Current.Factory = composition.CreateFactory();
// determines if unattended install is enabled and performs it if required
DoUnattendedInstall(databaseFactory);
// determine our runtime level (AFTER UNATTENDED INSTALL)
// TODO: Feels kinda weird to call this again
DetermineRuntimeLevel(databaseFactory, ProfilingLogger);
// if level is Run and reason is UpgradeMigrations, that means we need to perform an unattended upgrade
if (_state.Reason == RuntimeLevelReason.UpgradeMigrations && _state.Level == RuntimeLevel.Run)
{
// do the upgrade
DoUnattendedUpgrade(_factory.GetInstance <DatabaseBuilder>());
// upgrade is done, set reason to Run
_state.Reason = RuntimeLevelReason.Run;
}
// create & initialize the components
_components = _factory.GetInstance <ComponentCollection>();
_components.Initialize();
}
catch (Exception e)
{
var bfe = e as BootFailedException ?? new BootFailedException("Boot failed.", e);
if (_state != null)
{
_state.Level = RuntimeLevel.BootFailed;
_state.BootFailedException = bfe;
}
timer?.Fail(exception: bfe); // be sure to log the exception - even if we repeat ourselves
// if something goes wrong above, we may end up with no factory
// meaning nothing can get the runtime state, etc - so let's try
// to make sure we have a factory
if (_factory == null)
{
try
{
_factory = Current.Factory = composition?.CreateFactory();
}
catch
{
// In this case we are basically dead, we do not have a factory but we need
// to report on the state so we need to manually set that, this is the only time
// we ever do this.
Current.RuntimeState = _state;
}
}
Debugger.Break();
// throwing here can cause w3wp to hard-crash and we want to avoid it.
// instead, we're logging the exception and setting level to BootFailed.
// various parts of Umbraco such as UmbracoModule and UmbracoDefaultOwinStartup
// understand this and will nullify themselves, while UmbracoModule will
// throw a BootFailedException for every requests.
}
return(_factory);
}