protected override DbProviderManifest GetDbProviderManifest(string manifestToken)
{
return(new LegacyDbProviderManifestWrapper(_wrappedProviderServices.GetProviderManifest(manifestToken)));
}
private static MetadataWorkspace GetProviderSchemaMetadataWorkspace(DbProviderServices providerServices, DbConnection providerConnection, Version targetEntityFrameworkVersion)
{
XmlReader csdl = null;
XmlReader ssdl = null;
XmlReader msl = null;
Debug.Assert(EntityFrameworkVersions.IsValidVersion(targetEntityFrameworkVersion), "EntityFrameworkVersions.IsValidVersion(targetEntityFrameworkVersion)");
string csdlName;
string ssdlName;
string mslName;
if (targetEntityFrameworkVersion >= EntityFrameworkVersions.Version3)
{
csdlName = DbProviderManifest.ConceptualSchemaDefinitionVersion3;
ssdlName = DbProviderManifest.StoreSchemaDefinitionVersion3;
mslName = DbProviderManifest.StoreSchemaMappingVersion3;
}
else
{
csdlName = DbProviderManifest.ConceptualSchemaDefinition;
ssdlName = DbProviderManifest.StoreSchemaDefinition;
mslName = DbProviderManifest.StoreSchemaMapping;
}
try
{
// create the metadata workspace
MetadataWorkspace workspace = new MetadataWorkspace();
string manifestToken = providerServices.GetProviderManifestToken(providerConnection);
DbProviderManifest providerManifest = providerServices.GetProviderManifest(manifestToken);
// create the EdmItemCollection
IList<EdmSchemaError> errors;
ssdl = providerManifest.GetInformation(ssdlName);
string location = Strings.DbProviderServicesInformationLocationPath(providerConnection.GetType().Name, ssdlName);
List<string> ssdlLocations = new List<string>(1);
ssdlLocations.Add(location);
StoreItemCollection storeItemCollection = new StoreItemCollection(new XmlReader[] { ssdl }, ssdlLocations.AsReadOnly(), out errors);
ThrowOnError(errors);
workspace.RegisterItemCollection(storeItemCollection);
csdl = DbProviderServices.GetConceptualSchemaDefinition(csdlName);
location = Strings.DbProviderServicesInformationLocationPath(typeof(DbProviderServices).Name, csdlName);
List<string> csdlLocations = new List<string>(1);
csdlLocations.Add(location);
EdmItemCollection edmItemCollection = new EdmItemCollection(new XmlReader[] { csdl }, csdlLocations.AsReadOnly(), out errors);
ThrowOnError(errors);
workspace.RegisterItemCollection(edmItemCollection);
msl = providerManifest.GetInformation(mslName);
location = Strings.DbProviderServicesInformationLocationPath(providerConnection.GetType().Name, DbProviderManifest.StoreSchemaMapping);
List<string> mslLocations = new List<string>(1);
mslLocations.Add(location);
StorageMappingItemCollection mappingItemCollection = new StorageMappingItemCollection(edmItemCollection,
storeItemCollection,
new XmlReader[] { msl },
mslLocations,
out errors);
ThrowOnError(errors);
workspace.RegisterItemCollection(mappingItemCollection);
// make the views generate here so we can wrap the provider schema problems
// in a ProviderIncompatibleException
ForceViewGeneration(workspace);
return workspace;
}
catch (ProviderIncompatibleException)
{
// we don't really want to catch this one, just rethrow it
throw;
}
catch (Exception e)
{
if (MetadataUtil.IsCatchableExceptionType(e))
{
throw EDesignUtil.ProviderIncompatible(Strings.ProviderSchemaErrors, e);
}
throw;
}
finally
{
if (csdl != null) ((IDisposable)csdl).Dispose();
if (ssdl != null) ((IDisposable)ssdl).Dispose();
if (msl != null) ((IDisposable)msl).Dispose();
}
}
