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//---------------------------------------------------------------------
// <copyright file="DbXmlEnabledProviderManifest.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//
// @owner Microsoft
//---------------------------------------------------------------------
namespace System.Data.Common
{
using System.Collections.Generic;
using System.Data.Entity;
using System.Data.EntityModel.SchemaObjectModel;
using System.Data.Metadata.Edm;
using System.Diagnostics;
using System.Xml;
/// <summary>
/// A specialization of the ProviderManifest that accepts an XmlReader
/// </summary>
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "Db")]
public abstract class DbXmlEnabledProviderManifest : DbProviderManifest
{
private string _namespaceName;
private System.Collections.ObjectModel.ReadOnlyCollection<PrimitiveType> _primitiveTypes;
private Dictionary<PrimitiveType, System.Collections.ObjectModel.ReadOnlyCollection<FacetDescription>> _facetDescriptions = new Dictionary<PrimitiveType, System.Collections.ObjectModel.ReadOnlyCollection<FacetDescription>>();
private System.Collections.ObjectModel.ReadOnlyCollection<EdmFunction> _functions;
private Dictionary<string, PrimitiveType> _storeTypeNameToEdmPrimitiveType = new Dictionary<string, PrimitiveType>();
private Dictionary<string, PrimitiveType> _storeTypeNameToStorePrimitiveType = new Dictionary<string, PrimitiveType>();
protected DbXmlEnabledProviderManifest(XmlReader reader)
{
if (reader == null)
{
throw EntityUtil.ProviderIncompatible(Strings.IncorrectProviderManifest, new ArgumentNullException("reader"));
}
Load(reader);
}
#region Protected Properties For Fields
public override string NamespaceName
{
get
{
return this._namespaceName;
}
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Edm")]
protected Dictionary<string, PrimitiveType> StoreTypeNameToEdmPrimitiveType
{
get
{
return this._storeTypeNameToEdmPrimitiveType;
}
}
protected Dictionary<string, PrimitiveType> StoreTypeNameToStorePrimitiveType
{
get
{
return this._storeTypeNameToStorePrimitiveType;
}
}
#endregion
/// <summary>
/// Returns all the FacetDescriptions for a particular type
/// </summary>
/// <param name="type">the type to return FacetDescriptions for.</param>
/// <returns>The FacetDescriptions for the type given.</returns>
public override System.Collections.ObjectModel.ReadOnlyCollection<FacetDescription> GetFacetDescriptions(EdmType type)
{
Debug.Assert(type is PrimitiveType, "DbXmlEnabledProviderManifest.GetFacetDescriptions(): Argument is not a PrimitiveType");
return GetReadOnlyCollection(type as PrimitiveType, _facetDescriptions, Helper.EmptyFacetDescriptionEnumerable);
}
public override System.Collections.ObjectModel.ReadOnlyCollection<PrimitiveType> GetStoreTypes()
{
return _primitiveTypes;
}
/// <summary>
/// Returns all the edm functions supported by the provider manifest.
/// </summary>
/// <returns>A collection of edm functions.</returns>
public override System.Collections.ObjectModel.ReadOnlyCollection<EdmFunction> GetStoreFunctions()
{
return _functions;
}
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Globalization", "CA1308:NormalizeStringsToUppercase")]
private void Load(XmlReader reader)
{
Schema schema;
IList<EdmSchemaError> errors = SchemaManager.LoadProviderManifest(reader, reader.BaseURI.Length > 0 ? reader.BaseURI : null, true /*checkForSystemNamespace*/, out schema);
if (errors.Count != 0)
{
throw EntityUtil.ProviderIncompatible(Strings.IncorrectProviderManifest + Helper.CombineErrorMessage(errors));
}
_namespaceName = schema.Namespace;
List<PrimitiveType> listOfPrimitiveTypes = new List<PrimitiveType>();
foreach (System.Data.EntityModel.SchemaObjectModel.SchemaType schemaType in schema.SchemaTypes)
{
TypeElement typeElement = schemaType as TypeElement;
if (typeElement != null)
{
PrimitiveType type = typeElement.PrimitiveType;
type.ProviderManifest = this;
type.DataSpace = DataSpace.SSpace;
type.SetReadOnly();
listOfPrimitiveTypes.Add(type);
_storeTypeNameToStorePrimitiveType.Add(type.Name.ToLowerInvariant(), type);
_storeTypeNameToEdmPrimitiveType.Add(type.Name.ToLowerInvariant(), EdmProviderManifest.Instance.GetPrimitiveType(type.PrimitiveTypeKind));
System.Collections.ObjectModel.ReadOnlyCollection<FacetDescription> descriptions;
if (EnumerableToReadOnlyCollection(typeElement.FacetDescriptions, out descriptions))
{
_facetDescriptions.Add(type, descriptions);
}
}
}
this._primitiveTypes = Array.AsReadOnly(listOfPrimitiveTypes.ToArray());
// load the functions
ItemCollection collection = new EmptyItemCollection();
IEnumerable<GlobalItem> items = Converter.ConvertSchema(schema, this, collection);
if (!EnumerableToReadOnlyCollection<EdmFunction, GlobalItem>(items, out this._functions))
{
this._functions = Helper.EmptyEdmFunctionReadOnlyCollection;
}
//SetReadOnly on all the Functions
foreach (EdmFunction function in this._functions)
{
function.SetReadOnly();
}
}
private static System.Collections.ObjectModel.ReadOnlyCollection<T> GetReadOnlyCollection<T>(PrimitiveType type, Dictionary<PrimitiveType, System.Collections.ObjectModel.ReadOnlyCollection<T>> typeDictionary, System.Collections.ObjectModel.ReadOnlyCollection<T> useIfEmpty)
{
System.Collections.ObjectModel.ReadOnlyCollection<T> collection;
if (typeDictionary.TryGetValue(type, out collection))
{
return collection;
}
else
{
return useIfEmpty;
}
}
private static bool EnumerableToReadOnlyCollection<Target, BaseType>(IEnumerable<BaseType> enumerable, out System.Collections.ObjectModel.ReadOnlyCollection<Target> collection) where Target : BaseType
{
List<Target> list = new List<Target>();
foreach (BaseType item in enumerable)
{
if (typeof(Target) == typeof(BaseType) || item is Target)
{
list.Add((Target)item);
}
}
if (list.Count != 0)
{
collection = list.AsReadOnly();
return true;
}
collection = null;
return false;
}
private class EmptyItemCollection : ItemCollection
{
public EmptyItemCollection()
: base(DataSpace.SSpace)
{
}
}
}
}
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