internal void LoadStoreCollection(EdmItemCollection edmItemCollection, MetadataArtifactLoader loader)
{
StoreItemCollection storeItemCollection = null;
IEnumerable <XmlReader> sSpaceXmlReaders = loader.CreateReaders(DataSpace.SSpace);
try
{
// Load the store side, however, only do so if we don't already have one
storeItemCollection = new StoreItemCollection(
sSpaceXmlReaders,
loader.GetPaths(DataSpace.SSpace));
}
finally
{
Helper.DisposeXmlReaders(sSpaceXmlReaders);
}
// If this entry is getting re-used, make sure that the previous query cache manager gets
// cleared up
if (_queryCacheManager != null)
{
_queryCacheManager.Clear();
}
// Update the query cache manager reference
_queryCacheManager = storeItemCollection.QueryCacheManager;
// With the store metadata in place, we can then load the mappings, however, only use it
// if we don't already have one
//
StorageMappingItemCollection storageMappingItemCollection = null;
IEnumerable <XmlReader> csSpaceXmlReaders = loader.CreateReaders(DataSpace.CSSpace);
try
{
storageMappingItemCollection = new StorageMappingItemCollection(
edmItemCollection,
storeItemCollection,
csSpaceXmlReaders,
loader.GetPaths(DataSpace.CSSpace));
}
finally
{
Helper.DisposeXmlReaders(csSpaceXmlReaders);
}
List <string> permissionPaths = new List <string>();
loader.CollectFilePermissionPaths(permissionPaths, DataSpace.SSpace);
loader.CollectFilePermissionPaths(permissionPaths, DataSpace.CSSpace);
FileIOPermission filePermissions = null;
if (permissionPaths.Count > 0)
{
filePermissions = new FileIOPermission(FileIOPermissionAccess.Read, permissionPaths.ToArray());
}
this.UpdateMetadataEntry(storageMappingItemCollection, filePermissions);
}
/// <summary>
/// Constructs a struct from which you can load edm item collection
/// </summary>
/// <param name="factory"></param>
/// <param name="edmItemCollection"></param>
internal StoreItemCollectionLoader(EdmItemCollection edmItemCollection, MetadataArtifactLoader loader)
{
Debug.Assert(edmItemCollection != null, "EdmItemCollection must never be null");
Debug.Assert(loader != null, "loader must never be null");
//StoreItemCollection requires atleast one SSDL path.
if ((loader.GetPaths(DataSpace.SSpace) == null) || (loader.GetPaths(DataSpace.SSpace).Count == 0))
{
throw EntityUtil.Metadata(Strings.AtleastOneSSDLNeeded);
}
_edmItemCollection = edmItemCollection;
_loader = loader;
}
internal void LoadEdmItemCollection(MetadataArtifactLoader loader)
{
Debug.Assert(loader != null, "loader is null");
List <XmlReader> readers = loader.CreateReaders(DataSpace.CSpace);
try
{
EdmItemCollection itemCollection = new EdmItemCollection(
readers,
loader.GetPaths(DataSpace.CSpace)
);
List <string> permissionPaths = new List <string>();
loader.CollectFilePermissionPaths(permissionPaths, DataSpace.CSpace);
FileIOPermission filePermissions = null;
if (permissionPaths.Count > 0)
{
filePermissions = new FileIOPermission(FileIOPermissionAccess.Read, permissionPaths.ToArray());
}
UpdateMetadataEntry(itemCollection, filePermissions);
}
finally
{
Helper.DisposeXmlReaders(readers);
}
}
[ResourceConsumption(ResourceScope.Machine)] //For MetadataArtifactLoader.CreateCompositeFromFilePaths method call but we do not create the file paths in this method
public EdmItemCollection(params string[] filePaths)
: base(DataSpace.CSpace)
{
EntityUtil.CheckArgumentNull(filePaths, "filePaths");
// Wrap the file paths in instances of the MetadataArtifactLoader class, which provides
// an abstraction and a uniform interface over a diverse set of metadata artifacts.
//
MetadataArtifactLoader composite = null;
List <XmlReader> readers = null;
try
{
composite = MetadataArtifactLoader.CreateCompositeFromFilePaths(filePaths, XmlConstants.CSpaceSchemaExtension);
readers = composite.CreateReaders(DataSpace.CSpace);
this.Init(readers,
composite.GetPaths(DataSpace.CSpace),
true /*throwOnError*/);
}
finally
{
if (readers != null)
{
Helper.DisposeXmlReaders(readers);
}
}
}
/// <summary>
/// Public constructor that loads the metadata files from the specified XmlReaders
/// </summary>
/// <param name="xmlReaders">XmlReader objects where the EDM schemas are loaded</param>
public EdmItemCollection(IEnumerable <XmlReader> xmlReaders)
: base(DataSpace.CSpace)
{
EntityUtil.CheckArgumentNull(xmlReaders, "xmlReaders");
EntityUtil.CheckArgumentContainsNull(ref xmlReaders, "xmlReaders");
MetadataArtifactLoader composite = MetadataArtifactLoader.CreateCompositeFromXmlReaders(xmlReaders);
this.Init(composite.GetReaders(),
composite.GetPaths(),
true /*throwOnError*/);
}
/// <summary>
/// Public constructor that loads the metadata files from the specified xmlReaders.
/// Throws when encounter errors.
/// </summary>
/// <param name="xmlReaders">xmlReaders where the CDM schemas are loaded</param>
public StoreItemCollection(IEnumerable <XmlReader> xmlReaders)
: base(DataSpace.SSpace)
{
EntityUtil.CheckArgumentNull(xmlReaders, "xmlReaders");
EntityUtil.CheckArgumentEmpty(ref xmlReaders, Strings.StoreItemCollectionMustHaveOneArtifact, "xmlReader");
MetadataArtifactLoader composite = MetadataArtifactLoader.CreateCompositeFromXmlReaders(xmlReaders);
this.Init(composite.GetReaders(),
composite.GetPaths(), true,
out _providerManifest,
out _providerFactory,
out _providerManifestToken,
out _cachedCTypeFunction);
}
[ResourceConsumption(ResourceScope.Machine)] //For MetadataArtifactLoader.CreateCompositeFromFilePaths method call but we do not create the file paths in this method
public StoreItemCollection(params string[] filePaths)
: base(DataSpace.SSpace)
{
EntityUtil.CheckArgumentNull(filePaths, "filePaths");
IEnumerable <string> enumerableFilePaths = filePaths;
EntityUtil.CheckArgumentEmpty(ref enumerableFilePaths, Strings.StoreItemCollectionMustHaveOneArtifact, "filePaths");
// Wrap the file paths in instances of the MetadataArtifactLoader class, which provides
// an abstraction and a uniform interface over a diverse set of metadata artifacts.
//
MetadataArtifactLoader composite = null;
List <XmlReader> readers = null;
try
{
composite = MetadataArtifactLoader.CreateCompositeFromFilePaths(enumerableFilePaths, XmlConstants.SSpaceSchemaExtension);
readers = composite.CreateReaders(DataSpace.SSpace);
IEnumerable <XmlReader> ieReaders = readers.AsEnumerable();
EntityUtil.CheckArgumentEmpty(ref ieReaders, Strings.StoreItemCollectionMustHaveOneArtifact, "filePaths");
this.Init(readers,
composite.GetPaths(DataSpace.SSpace), true,
out _providerManifest,
out _providerFactory,
out _providerManifestToken,
out _cachedCTypeFunction);
}
finally
{
if (readers != null)
{
Helper.DisposeXmlReaders(readers);
}
}
}
