// ----------------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. // ----------------------------------------------------------------------- using System; using System.ComponentModel.Composition.Hosting; using System.ComponentModel.Composition.Primitives; using System.Globalization; using System.Linq; using System.Reflection; namespace System.ComponentModel.Composition { public static partial class CompositionInitializer { /// <summary> /// Will satisfy the imports on a object instance based on a <see cref="CompositionContainer"/> /// registered with the <see cref="CompositionHost"/>. By default if no <see cref="CompositionContainer"/> /// is registered the first time this is called it will be initialized to a catalog /// that contains all the assemblies loaded by the initial application XAP. /// </summary> /// <param name="attributedPart"> /// Object instance that contains <see cref="ImportAttribute"/>s that need to be satisfied. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="instance"/> is <see langword="null"/>. /// </exception> /// <exception cref="ArgumentException"> /// <paramref name="instance"/> contains <see cref="ExportAttribute"/>s applied on its type. /// </exception> /// <exception cref="ChangeRejectedException"> /// One or more of the imports on the object instance could not be satisfied. /// </exception> /// <exception cref="CompositionException"> /// One or more of the imports on the object instance caused an error while composing. /// </exception> public static void SatisfyImports(object attributedPart) { if (attributedPart == null) { throw new ArgumentNullException("attributedPart"); } ComposablePart part = AttributedModelServices.CreatePart(attributedPart); CompositionInitializer.SatisfyImports(part); } /// <summary> /// Will satisfy the imports on a part based on a <see cref="CompositionContainer"/> /// registered with the <see cref="CompositionHost"/>. By default if no <see cref="CompositionContainer"/> /// is registered the first time this is called it will be initialized to a catalog /// that contains all the assemblies loaded by the initial application XAP. /// </summary> /// <param name="part"> /// Part with imports that need to be satisfied. /// </param> /// <exception cref="ArgumentNullException"> /// <paramref name="instance"/> is <see langword="null"/>. /// </exception> /// <exception cref="ArgumentException"> /// <paramref name="instance"/> contains <see cref="ExportAttribute"/>s applied on its type. /// </exception> /// <exception cref="ChangeRejectedException"> /// One or more of the imports on the object instance could not be satisfied. /// </exception> /// <exception cref="CompositionException"> /// One or more of the imports on the object instance caused an error while composing. /// </exception> public static void SatisfyImports(ComposablePart part) { if (part == null) { throw new ArgumentNullException("part"); } var batch = new CompositionBatch(); batch.AddPart(part); if (part.ExportDefinitions.Any()) { throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Strings.ArgumentException_TypeHasExports, part.ToString()), "part"); } CompositionContainer container = null; // Ignoring return value because we don't need to know if we created it or not CompositionHost.TryGetOrCreateContainer(_createContainer, out container); container.Compose(batch); } private static Func<CompositionContainer> _createContainer = CreateCompositionContainer; private static CompositionContainer CreateCompositionContainer() { var aggCatalog = GetCatalog(); return new CompositionContainer(aggCatalog); } } }
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