// Static initialization. Returns a service provider with some new services initialized.
// The new services:
// - can retrieve static config like binders and converters; but the listeners haven't yet started.
// - can be flowed into the runtime initialization to get a JobHost spun up and running.
// This is just static initialization and should not need to make any network calls,
// and so this method should not need to be async.
// This can be called multiple times on a config, which is why it returns a new ServiceProviderWrapper
// instead of modifying the config.
public static ServiceProviderWrapper CreateStaticServices(this JobHostConfiguration config)
{
var services = new ServiceProviderWrapper(config);
var consoleProvider = services.GetService <IConsoleProvider>();
var nameResolver = services.GetService <INameResolver>();
IWebJobsExceptionHandler exceptionHandler = services.GetService <IWebJobsExceptionHandler>();
IQueueConfiguration queueConfiguration = services.GetService <IQueueConfiguration>();
var blobsConfiguration = config.Blobs;
IStorageAccountProvider storageAccountProvider = services.GetService <IStorageAccountProvider>();
IBindingProvider bindingProvider = services.GetService <IBindingProvider>();
SingletonManager singletonManager = services.GetService <SingletonManager>();
IHostIdProvider hostIdProvider = services.GetService <IHostIdProvider>();
var hostId = config.HostId;
if (hostId != null)
{
hostIdProvider = new FixedHostIdProvider(hostId);
}
if (hostIdProvider == null)
{
// Need a deferred getter since the IFunctionIndexProvider service isn't created until later.
Func <IFunctionIndexProvider> deferredGetter = () => services.GetService <IFunctionIndexProvider>();
hostIdProvider = new DynamicHostIdProvider(storageAccountProvider, deferredGetter);
}
services.AddService <IHostIdProvider>(hostIdProvider);
AzureStorageDeploymentValidator.Validate();
IExtensionTypeLocator extensionTypeLocator = services.GetService <IExtensionTypeLocator>();
if (extensionTypeLocator == null)
{
extensionTypeLocator = new ExtensionTypeLocator(services.GetService <ITypeLocator>());
services.AddService <IExtensionTypeLocator>(extensionTypeLocator);
}
ContextAccessor <IMessageEnqueuedWatcher> messageEnqueuedWatcherAccessor = new ContextAccessor <IMessageEnqueuedWatcher>();
services.AddService(messageEnqueuedWatcherAccessor);
ContextAccessor <IBlobWrittenWatcher> blobWrittenWatcherAccessor = new ContextAccessor <IBlobWrittenWatcher>();
ISharedContextProvider sharedContextProvider = new SharedContextProvider();
// Create a wrapper TraceWriter that delegates to both the user
// TraceWriters specified via config (if present), as well as to Console
TraceWriter trace = new ConsoleTraceWriter(config.Tracing, consoleProvider.Out);
services.AddService <TraceWriter>(trace);
// Add built-in extensions
config.AddAttributesFromAssembly(typeof(TableAttribute).Assembly);
var exts = config.GetExtensions();
bool builtinsAdded = exts.GetExtensions <IExtensionConfigProvider>().OfType <TableExtension>().Any();
if (!builtinsAdded)
{
config.AddExtension(new TableExtension());
config.AddExtension(new QueueExtension());
}
ExtensionConfigContext context = new ExtensionConfigContext
{
Config = config,
Trace = trace,
PerHostServices = services
};
InvokeExtensionConfigProviders(context);
if (singletonManager == null)
{
singletonManager = new SingletonManager(storageAccountProvider, exceptionHandler, config.Singleton, trace, config.LoggerFactory, hostIdProvider, services.GetService <INameResolver>());
services.AddService <SingletonManager>(singletonManager);
}
IExtensionRegistry extensions = services.GetExtensions();
ITriggerBindingProvider triggerBindingProvider = DefaultTriggerBindingProvider.Create(nameResolver,
storageAccountProvider, extensionTypeLocator, hostIdProvider, queueConfiguration, blobsConfiguration, exceptionHandler,
messageEnqueuedWatcherAccessor, blobWrittenWatcherAccessor, sharedContextProvider, extensions, singletonManager, trace, config.LoggerFactory);
services.AddService <ITriggerBindingProvider>(triggerBindingProvider);
if (bindingProvider == null)
{
bindingProvider = DefaultBindingProvider.Create(nameResolver, config.LoggerFactory, storageAccountProvider, extensionTypeLocator, blobWrittenWatcherAccessor, extensions);
services.AddService <IBindingProvider>(bindingProvider);
}
return(services);
}
