private void DiscoverTypes(IEnumerable <ContractInfo> contracts)
{
lock (_lock)
{
if (_catalogCollection == null)
{
_catalogCollection = new AggregateCatalog();
}
var exports = new List <Tuple <ContractInfo, Colosoft.Reflection.Composition.IExport> >();
foreach (var i in contracts)
{
if (i.Types.Count == 0)
{
var tuple = new Tuple <ContractInfo, Reflection.Composition.IExport>(i, ExportManager.GetExport(i.ContractType, i.ContractName, _uiContext));
if (tuple.Item2 != null)
{
exports.Add(tuple);
}
}
else
{
var contractExports = ExportManager.GetExports(i.ContractType, i.ContractName, _uiContext);
int contractCount = 0;
foreach (var j in contractExports)
{
if (i.Types.Contains(j.Type, Colosoft.Reflection.TypeName.TypeNameEqualityComparer.Instance))
{
contractCount++;
var tuple = new Tuple <ContractInfo, Reflection.Composition.IExport>(i, j);
exports.Add(tuple);
}
}
}
}
if (exports.Count > 0)
{
var pkgParts = new List <Colosoft.Reflection.AssemblyPart>();
var partDescriptions = new List <PartDescription>();
foreach (var i in exports)
{
var assemblyPart = new Colosoft.Reflection.AssemblyPart(string.Format("{0}.dll", i.Item2.Type.AssemblyName.Name));
if (!pkgParts.Exists(f => StringComparer.InvariantCultureIgnoreCase.Equals(f.Source, assemblyPart.Source)))
{
pkgParts.Add(assemblyPart);
}
System.ComponentModel.Composition.CreationPolicy creationPolicy = System.ComponentModel.Composition.CreationPolicy.Any;
switch (i.Item2.CreationPolicy)
{
case Reflection.Composition.CreationPolicy.NonShared:
creationPolicy = System.ComponentModel.Composition.CreationPolicy.NonShared;
break;
case Reflection.Composition.CreationPolicy.Shared:
creationPolicy = System.ComponentModel.Composition.CreationPolicy.Shared;
break;
}
ImportingConstructorDescription importingConstructor = null;
if (i.Item2.ImportingConstructor)
{
importingConstructor = new ImportingConstructorDescription(i.Item2.Type, null);
}
var partDescription = new PartDescription(i.Item2.Type, new ExportDescription[] {
new ExportDescription {
ContractTypeName = i.Item1.ContractType,
ContractName = string.IsNullOrEmpty(i.Item2.ContractName) ? null : i.Item2.ContractName.Trim(),
Metadata = i.Item2.Metadata
}
}, new ImportDescription[0], i.Item2.UseDispatcher, importingConstructor, creationPolicy);
partDescriptions.Add(partDescription);
}
var catalog = new DefinitionCatalog(new DiscoverAssembliesContainer(this, _assemblyRepository, pkgParts.ToArray(), exports), partDescriptions);
var addedDefinitions = catalog.Parts;
using (AtomicComposition composition = new AtomicComposition())
{
var args = new ComposablePartCatalogChangeEventArgs(addedDefinitions, Enumerable.Empty <ComposablePartDefinition>(), composition);
this.OnChanging(args);
_catalogCollection.Catalogs.Add(catalog);
composition.Complete();
}
ComposablePartCatalogChangeEventArgs e = new ComposablePartCatalogChangeEventArgs(addedDefinitions, Enumerable.Empty <ComposablePartDefinition>(), null);
this.OnChanged(e);
}
}
}
