internal static MetadataWorkspace CreateTransientMetadataWorkspace(
IList <EntitySet> sourceEntitySets,
Version targetEntityFrameworkVersion,
string providerInvariantName,
string providerManifestToken,
DbProviderManifest providerManifest)
{
Debug.Assert(sourceEntitySets != null, "sourceEntitySets != null");
Debug.Assert(targetEntityFrameworkVersion != null, "targetEntityFrameworkVersion != null");
Debug.Assert(!string.IsNullOrWhiteSpace(providerInvariantName), "invalid providerInvariantName");
Debug.Assert(!string.IsNullOrWhiteSpace(providerManifestToken), "invalid providerManifestToken");
Debug.Assert(providerManifest != null, "providerManifest != null");
var targetDoubleEntityFrameworkVersion = EntityFrameworkVersion.VersionToDouble(targetEntityFrameworkVersion);
var storeModel =
EdmModel.CreateStoreModel(
EntityContainer.Create(
StoreContainerName,
DataSpace.SSpace,
sourceEntitySets,
Enumerable.Empty <EdmFunction>(),
null),
new DbProviderInfo(providerInvariantName, providerManifestToken),
providerManifest,
targetDoubleEntityFrameworkVersion);
foreach (var entityType in sourceEntitySets.Select(e => e.ElementType))
{
storeModel.AddItem(entityType);
}
var storeItemCollection = new StoreItemCollection(storeModel);
var edmItemCollection =
new EdmItemCollection(
EdmModel.CreateConceptualModel(
EntityContainer.Create(
ModelContainerName,
DataSpace.CSpace,
Enumerable.Empty <EntitySet>(),
Enumerable.Empty <EdmFunction>(),
null),
targetDoubleEntityFrameworkVersion));
var msl =
string.Format(
CultureInfo.InvariantCulture,
MslTemplate,
SchemaManager.GetMSLNamespaceName(targetEntityFrameworkVersion));
StorageMappingItemCollection mappingItemCollection;
using (var stringReader = new StringReader(msl))
{
using (var reader = XmlReader.Create(stringReader))
{
mappingItemCollection = new StorageMappingItemCollection(edmItemCollection, storeItemCollection, new[] { reader });
}
}
return(new MetadataWorkspace(
() => edmItemCollection,
() => storeItemCollection,
() => mappingItemCollection));
}