public Func<NodeUri, INodeLocator, Task<INode>> LoadNodeFactory(INodeLocatorRegistry registry, NodeConfigurationData configuration)
{
Debug.Indent();
Debug.Assert(configuration != null, "Node configuration is NULL");
Debug.Print("Load Node Factory Descriptor");
var descriptor = LoadDescriptor(configuration);
Debug.Assert(descriptor != null, "Unknown or invalid Node descriptor");
Debug.Print("Load child Node Factories");
var childTasks = new Dictionary<string, Task<INodeLocatorRegistry>>();
int childNodeAutoId = 0;
foreach (var nodeConfiguration in configuration.Nodes)
{
childNodeAutoId++;
var config = nodeConfiguration;
var id = config.Id ?? childNodeAutoId.ToString("D2");
if (childTasks.ContainsKey(id))
{
id = $"{id}-{childNodeAutoId}";
}
Debug.Print("Load Node at '{0}'", id);
childTasks[id] = Task.Run(() =>
{
Debug.Print("Create Node Locator Builder for child node '{0}'", id);
var childNodeLocatorRegistry = registry.CreateChildRegistry(id);
Debug.Print("Load Node Factory for child node '{0}'", id);
var childNodeFactory = LoadNodeFactory(childNodeLocatorRegistry, config);
Debug.Print("Rregister child Node Factory '{0}'", id);
registry.RegisterNodeFactory(id, async (uri, locator) => await childNodeFactory(uri, locator));
return childNodeLocatorRegistry;
});
}
var nodeFactory = descriptor.CreateNodeFactory(registry, configuration);
var task = new Func<NodeUri, INodeLocator, Task<INode>>(async (uri, locator) =>
{
Debug.Indent();
Debug.Print("Wait for all child Node Factories of '{0}' to finish initialization", uri);
await Task.WhenAll(childTasks.Values);
Debug.Print("Create Node instance at '{0}'", uri);
var node = await nodeFactory(uri, locator);
Debug.Unindent();
return node;
});
Debug.Unindent();
return task;
}
public Func<NodeUri, INodeLocator, Task<INode>> CreateNodeFactory(INodeLocatorRegistry registry, ConfigurationData configuration)
{
Debug.Print($"Create ServiceLocatorBuilder for service factory descriptor '{GetType().FullName}'");
var serviceLocatorRegistry = new ServiceLocatorRegistry(registry);
Debug.Print($"Configure NodeFactory Services of ServiceFactory Descriptor '{GetType().FullName}'");
Configure(serviceLocatorRegistry, configuration);
return (nodeUri, nodeLocator) => Task.Run(async () =>
{
Debug.Print($"Configure service dependencies for Node at '{nodeUri}'");
await Configure(new ServiceLocator(nodeLocator), configuration);
Debug.Print($"All done for Node at '{nodeUri}' - create an instance");
return (INode)nodeLocator;
});
}
