/// <summary>
/// Initializes the schema:
/// * Add any controllers to the schema instance that were configured during startup.
/// * add all methods, virtual graph types, return types parameters and property configuration.
/// * Add any additional types added at startup.
/// * Register introspection meta-fields.
/// * Compile and instantiate the resolution pipeline.
/// </summary>
/// <param name="schema">The schema to initialize.</param>
public virtual void Initialize(ISchema schema)
{
Validation.ThrowIfNull(schema, nameof(schema));
if (schema.IsInitialized)
{
return;
}
lock (schema)
{
if (schema.IsInitialized)
{
return;
}
schema.Configuration.Merge(_options.CreateConfiguration());
var manager = new GraphSchemaManager(schema);
manager.AddIntrospectionFields();
manager.AddBuiltInDirectives();
// add any configured types to this instance
foreach (var type in _options.RegisteredSchemaTypes)
{
var typeDeclaration = type.SingleAttributeOrDefault <GraphTypeAttribute>();
if (typeDeclaration != null && typeDeclaration.PreventAutoInclusion)
{
continue;
}
manager.EnsureGraphType(type);
}
manager.BuildIntrospectionData();
schema.IsInitialized = true;
}
}
