/// <summary>
/// Verification code invoked for entity sets
/// </summary>
/// <param name="item">The entity container being generated</param>
internal void VerifyLanguageCaseSensitiveCompatibilityForEntitySet(System.Data.Metadata.Edm.EntityContainer item)
{
if (_isLanguageCaseSensitive)
{
return; // no validation necessary
}
Debug.Assert(item != null);
HashSet <string> set = new HashSet <string>(StringComparer.OrdinalIgnoreCase);
foreach (EntitySetBase entitySetBase in item.BaseEntitySets)
{
if (MetadataUtil.IsEntitySet(entitySetBase))
{
EntitySet entitySet = (EntitySet)entitySetBase;
if (set.Contains(entitySet.Identity))
{
AddError(ModelBuilderErrorCode.IncompatibleSettingForCaseSensitiveOption,
EdmSchemaErrorSeverity.Error, new InvalidOperationException(Strings.EntitySetExistsWithDifferentCase(entitySet.Identity)),
item.Name);
}
else
{
set.Add(entitySet.Identity);
}
}
}
}
protected virtual void Visit(EntityContainer entityContainer)
{
foreach (var set in entityContainer.BaseEntitySets)
{
Visit(set);
}
}
/// <summary>
/// Returns the entity container in CSpace or SSpace
/// </summary>
/// <param name="name"></param>
/// <param name="ignoreCase"></param>
/// <param name="entityContainer"></param>
/// <returns></returns>
internal override bool TryGetEntityContainer(string name, bool ignoreCase, out EntityContainer entityContainer)
{
if (!base.TryGetEntityContainer(name, ignoreCase, out entityContainer))
{
return _modelPerspective.TryGetEntityContainer(name, ignoreCase, out entityContainer);
}
return true;
}
/// <summary>
/// Returns all mapping fragments for the given entity set's types and their parent types.
/// </summary>
internal static IEnumerable<StorageTypeMapping> GetMappingsForEntitySetAndSuperTypes(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase childEntityType)
{
return MetadataHelper.GetTypeAndParentTypesOf(childEntityType, mappingCollection.EdmItemCollection, true /*includeAbstractTypes*/).SelectMany(
edmType =>
edmType.EdmEquals(childEntityType) ?
GetMappingsForEntitySetAndType(mappingCollection, container, entitySet, (edmType as EntityTypeBase))
: GetIsTypeOfMappingsForEntitySetAndType(mappingCollection, container, entitySet, (edmType as EntityTypeBase), childEntityType)
).ToList();
}
/// <summary>
/// Returns mappings for the given set/type only if the mapping applies also to childEntittyType either via IsTypeOf or explicitly specifying multiple types in mapping fragments.
/// </summary>
private static IEnumerable<StorageTypeMapping> GetIsTypeOfMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType, EntityTypeBase childEntityType)
{
foreach (var mapping in GetMappingsForEntitySetAndType(mappingCollection, container, entitySet, entityType))
{
if (mapping.IsOfTypes.Any(parentType => parentType.IsAssignableFrom(childEntityType)) || mapping.Types.Contains(childEntityType))
{
yield return mapping;
}
}
}
private Dictionary<EntitySetBase, GeneratedView> SerializedGetGeneratedViews(EntityContainer container)
{
Debug.Assert(container != null);
// Note that extentMappingViews will contain both query and update views.
Dictionary<EntitySetBase, GeneratedView> extentMappingViews;
// Get the mapping that has the entity container mapped.
StorageEntityContainerMapping entityContainerMap = MappingMetadataHelper.GetEntityContainerMap(m_storageMappingItemCollection, container);
// We get here because memoizer didn't find an entry for the container.
// It might happen that the entry with generated views already exists for the counterpart container, so check it first.
EntityContainer counterpartContainer = container.DataSpace == DataSpace.CSpace ?
entityContainerMap.StorageEntityContainer : entityContainerMap.EdmEntityContainer;
if (m_generatedViewsMemoizer.TryGetValue(counterpartContainer, out extentMappingViews))
{
return extentMappingViews;
}
extentMappingViews = new Dictionary<EntitySetBase, GeneratedView>();
if (!entityContainerMap.HasViews)
{
return extentMappingViews;
}
// If we are in generated views mode.
if (m_generatedViewsMode)
{
if(ObjectItemCollection.ViewGenerationAssemblies!=null && ObjectItemCollection.ViewGenerationAssemblies.Count>0)
{
SerializedCollectViewsFromObjectCollection(this.m_storageMappingItemCollection.Workspace, extentMappingViews);
}
else
{
SerializedCollectViewsFromReferencedAssemblies(this.m_storageMappingItemCollection.Workspace, extentMappingViews);
}
}
if (extentMappingViews.Count == 0)
{
// We should change the mode to runtime generation of views.
this.m_generatedViewsMode = false;
this.SerializedGenerateViews(entityContainerMap, extentMappingViews);
}
Debug.Assert(extentMappingViews.Count > 0, "view should be generated at this point");
return extentMappingViews;
}
/// <summary>
/// Load all relationships in this entity container
/// </summary>
/// <param name="entityContainer"></param>
internal void LoadRelationships(md.EntityContainer entityContainer)
{
// Check to see if I've already loaded information for this entity container
if (m_entityContainerMap.ContainsKey(entityContainer))
{
return;
}
// Load all relationships from this entitycontainer
foreach (md.EntitySetBase e in entityContainer.BaseEntitySets)
{
md.RelationshipSet relationshipSet = e as md.RelationshipSet;
if (relationshipSet == null)
{
continue;
}
// Relationship sets can only contain relationships
md.RelationshipType relationshipType = (md.RelationshipType)relationshipSet.ElementType;
md.AssociationType assocType = relationshipType as md.AssociationType;
//
// Handle only binary Association relationships for now
//
if (null == assocType || !IsBinary(relationshipType))
{
continue;
}
foreach (md.ReferentialConstraint constraint in assocType.ReferentialConstraints)
{
List <ForeignKeyConstraint> fkConstraintList;
ForeignKeyConstraint fkConstraint = new ForeignKeyConstraint(relationshipType, relationshipSet, constraint);
if (!m_parentChildRelationships.TryGetValue(fkConstraint.Pair, out fkConstraintList))
{
fkConstraintList = new List <ForeignKeyConstraint>();
m_parentChildRelationships[fkConstraint.Pair] = fkConstraintList;
}
//
// Theoretically, we can have more than one fk constraint between
// the 2 tables (though, it is unlikely)
//
fkConstraintList.Add(fkConstraint);
}
}
// Mark this entity container as already loaded
m_entityContainerMap[entityContainer] = entityContainer;
}
internal static IEnumerable<StorageTypeMapping> GetMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType)
{
Debug.Assert(entityType != null, "EntityType parameter should not be null.");
StorageEntityContainerMapping containerMapping = GetEntityContainerMap(mappingCollection, container);
StorageSetMapping extentMap = containerMapping.GetSetMapping(entitySet.Name);
//The Set may have no mapping
if (extentMap != null)
{
//for each mapping fragment of Type we are interested in within the given set
//Check use of IsOfTypes in Code review
foreach (StorageTypeMapping typeMap in extentMap.TypeMappings.Where(map => map.Types.Union(map.IsOfTypes).Contains(entityType)))
{
yield return typeMap;
}
}
}
internal static IEnumerable<StorageEntityTypeModificationFunctionMapping> GetModificationFunctionMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType)
{
StorageEntityContainerMapping containerMapping = GetEntityContainerMap(mappingCollection, container);
StorageSetMapping extentMap = containerMapping.GetSetMapping(entitySet.Name);
StorageEntitySetMapping entitySetMapping = extentMap as StorageEntitySetMapping;
//The Set may have no mapping
if (entitySetMapping != null)
{
if (entitySetMapping != null) //could be association set mapping
{
foreach (var v in entitySetMapping.ModificationFunctionMappings.Where(functionMap => functionMap.EntityType.Equals(entityType)))
{
yield return v;
}
}
}
}
protected override void Visit(EntityContainer entityContainer)
{
int index;
if (!this.AddObjectToSeenListAndHashBuilder(entityContainer, out index))
{
return;
}
this.AddObjectStartDumpToHashBuilder(entityContainer, index);
#region Inner data visit
this.AddObjectContentToHashBuilder(entityContainer.Identity);
// Name is covered by Identity
base.Visit(entityContainer);
#endregion
this.AddObjectEndDumpToHashBuilder();
}
/// <summary>
/// Returns the extent in the target space, for the given entity container.
/// </summary>
/// <param name="entityContainer">name of the entity container in target space</param>
/// <param name="extentName">name of the extent</param>
/// <param name="ignoreCase">Whether to do case-sensitive member look up or not</param>
/// <param name="outSet">extent in target space, if a match is found</param>
/// <returns>returns true, if a match is found otherwise returns false</returns>
internal bool TryGetExtent(EntityContainer entityContainer, String extentName, bool ignoreCase, out EntitySetBase outSet)
{
// There are no entity containers in the OSpace. So there is no mapping involved.
// Hence the name should be a valid name in the CSpace.
return entityContainer.BaseEntitySets.TryGetValue(extentName, ignoreCase, out outSet);
}
/// <summary>
/// Change the entity container without doing fixup in the entity set collection
/// </summary>
internal void ChangeEntityContainerWithoutCollectionFixup(EntityContainer newEntityContainer)
{
_entityContainer = newEntityContainer;
}
private void MapFunctions(LoadMethodSessionState session, EntityContainer modelEntityContainer)
{
if (_storeFunctions == null || _storeFunctions.Length == 0 || _targetEntityFrameworkVersion < EntityFrameworkVersions.Version3)
{
return;
}
//
// Create function imports and appropriate complex types for return parameters and add them to the item collection (session.EdmItemCollection).
// Create and add function mappings.
//
var interestingStoreFunctions = _storeFunctions.Where(
f => f.IsComposableAttribute &&
!f.AggregateAttribute &&
f.Parameters.All(p => p.Mode == ParameterMode.In));
foreach (var storeFunction in interestingStoreFunctions)
{
RowType tvfReturnType = TypeHelpers.GetTvfReturnType(storeFunction);
if (tvfReturnType == null)
{
continue;
}
// Create function import name.
string functionImportName = CreateModelName(storeFunction.Name, session.UsedEntityContainerItemNames);
// Create function import parameters.
UniqueIdentifierService usedParameterNames = new UniqueIdentifierService(false);
var parameters = storeFunction.Parameters.Select(p => CreateFunctionImportParameter(p, usedParameterNames)).ToArray();
var failedStoreParameterName = storeFunction.Parameters.Select(p => p.Name).Except(parameters.Select(p => p.Name)).FirstOrDefault();
if (failedStoreParameterName != null)
{
session.AddError(Strings.UnableToGenerateFunctionImportParameterName(failedStoreParameterName, storeFunction.Identity),
ModelBuilderErrorCode.UnableToGenerateFunctionImportParameterName, EdmSchemaErrorSeverity.Warning, null);
continue;
}
// Create new complex type and register it in the item collection.
var complexType = CreateModelComplexTypeForTvfResult(session, functionImportName, tvfReturnType);
complexType.SetReadOnly();
session.EdmItemCollection.AddInternal(complexType);
var collectionType = complexType.GetCollectionType();
collectionType.SetReadOnly();
var returnTypeUsage = TypeUsage.Create(collectionType);
// Create function import and register it in the item collection.
var functionImport = new EdmFunction(functionImportName, _modelEntityContainerName, DataSpace.CSpace, new EdmFunctionPayload()
{
Name = functionImportName,
NamespaceName = _namespaceName,
ReturnParameters = new FunctionParameter[] {new FunctionParameter(EdmConstants.ReturnType, returnTypeUsage, ParameterMode.ReturnValue)},
Parameters = parameters,
DataSpace = DataSpace.CSpace,
IsComposable = true,
IsFunctionImport = true
});
functionImport.SetReadOnly();
modelEntityContainer.AddFunctionImport(functionImport);
// Add mapping tuple.
session.MappingLookups.StoreFunctionToFunctionImport.Add(Tuple.Create(storeFunction, functionImport));
}
}
private void Initialize(EntityContainer storeEntityContainer, IEnumerable<EdmFunction> storeFunctions, string namespaceName, string modelEntityContainerName)
{
EDesignUtil.CheckArgumentNull(storeEntityContainer, "storeEntityContainer");
if (!MetadataUtil.IsStoreType(storeEntityContainer))
{
throw EDesignUtil.InvalidStoreEntityContainer(storeEntityContainer.Name, "storeEntityContainer");
}
if (namespaceName != null)
{
EDesignUtil.CheckStringArgument(namespaceName, "namespaceName");
string adjustedNamespaceName = CreateValildModelNamespaceName(namespaceName);
if (adjustedNamespaceName != namespaceName)
{
// the user gave us a bad namespace name
throw EDesignUtil.InvalidNamespaceNameArgument(namespaceName);
}
}
if (modelEntityContainerName != null)
{
EDesignUtil.CheckStringArgument(modelEntityContainerName, "modelEntityContainerName");
string adjustedEntityContainerName = CreateModelName(modelEntityContainerName);
if (adjustedEntityContainerName != modelEntityContainerName)
{
throw EDesignUtil.InvalidEntityContainerNameArgument(modelEntityContainerName);
}
if (modelEntityContainerName == storeEntityContainer.Name)
{
throw EDesignUtil.DuplicateEntityContainerName(modelEntityContainerName, storeEntityContainer.Name);
}
}
_storeEntityContainer = storeEntityContainer;
_storeFunctions = storeFunctions != null ? storeFunctions.ToArray() : null;
_namespaceName = namespaceName;
_modelEntityContainerName = modelEntityContainerName;
this._pluralizationServiceHandler = new EntityDesignPluralizationHandler(null);
SetupFields();
}
internal static StorageEntityContainerMapping GetEntityContainerMap(StorageMappingItemCollection mappingCollection, EntityContainer entityContainer)
{
ReadOnlyCollection<StorageEntityContainerMapping> entityContainerMaps = mappingCollection.GetItems<StorageEntityContainerMapping>();
StorageEntityContainerMapping entityContainerMap = null;
foreach (StorageEntityContainerMapping map in entityContainerMaps)
{
if ((entityContainer.Equals(map.EdmEntityContainer))
|| (entityContainer.Equals(map.StorageEntityContainer)))
{
entityContainerMap = map;
break;
}
}
if (entityContainerMap == null)
{
throw new MappingException(System.Data.Entity.Strings.Mapping_NotFound_EntityContainer(entityContainer.Name));
}
return entityContainerMap;
}
[ResourceConsumption(ResourceScope.Machine, ResourceScope.Machine)] //For EdmItemCollection constructor call.
//Since we pass in empty collection for paths, we do not have any resource exposure here.
private IList<EdmSchemaError> InternalGenerateMetadata()
{
if (_modelEntityContainer != null)
{
_modelEntityContainer = null;
_mappingLookups = null;
_edmItemCollection = null;
}
LoadMethodSessionState session = new LoadMethodSessionState();
try
{
session.EdmItemCollection = new EdmItemCollection();
if (this.GenerateForeignKeyProperties && this._targetEntityFrameworkVersion < EntityFrameworkVersions.Version2)
{
session.AddError(Strings.UnableToGenerateForeignKeyPropertiesForV1, ModelBuilderErrorCode.UnableToGenerateForeignKeyPropertiesForV1, EdmSchemaErrorSeverity.Error, null);
return session.Errors;
}
List<AssociationSet> storeAssociationSets = new List<AssociationSet>();
CollectAllFkProperties(session);
EntityContainer modelEntityContainer = new EntityContainer(_modelEntityContainerName, DataSpace.CSpace);
// create the EntityTypes and EntitySets, and save up the AssociationSets for later.
foreach (EntitySetBase storeSet in _storeEntityContainer.BaseEntitySets)
{
switch (storeSet.BuiltInTypeKind)
{
case BuiltInTypeKind.AssociationSet:
// save these, and create them after the EntityTypes and EntitySets have been created
string errorMessage;
if (this.GenerateForeignKeyProperties || !EntityStoreSchemaGenerator.IsFkPartiallyContainedInPK(((AssociationSet)storeSet).ElementType, out errorMessage))
{
storeAssociationSets.Add((AssociationSet)storeSet);
}
else
{
session.AddError(errorMessage, ModelBuilderErrorCode.UnsupportedForeinKeyPattern, EdmSchemaErrorSeverity.Error, null);
}
break;
case BuiltInTypeKind.EntitySet:
EntitySet set = (EntitySet)storeSet;
session.CandidateCollapsedAssociations.Add(set, new OneToOneMappingSerializer.CollapsedEntityAssociationSet(set));
break;
default:
// error
throw EDesignUtil.MissingGenerationPatternForType(storeSet.BuiltInTypeKind);
}
}
foreach (AssociationSet storeAssociationSet in storeAssociationSets)
{
SaveAssociationForCollapsedAssociationCandidate(session, storeAssociationSet);
}
Set<AssociationSet> associationSetsFromCollapseCandidateRejects = new Set<AssociationSet>();
IEnumerable<OneToOneMappingSerializer.CollapsedEntityAssociationSet> invalidCandidates = FindAllInvalidCollapsedAssociationCandidates(session);
// now that we have gone through all of the association sets,
foreach (OneToOneMappingSerializer.CollapsedEntityAssociationSet collapsed in invalidCandidates)
{
session.CandidateCollapsedAssociations.Remove(collapsed.EntitySet);
// just create the entity set and save the association set to be added later
EntitySet entitySet = CreateModelEntitySet(session, collapsed.EntitySet);
modelEntityContainer.AddEntitySetBase(entitySet);
associationSetsFromCollapseCandidateRejects.AddRange(collapsed.AssociationSets);
}
// create all the associations for the invalid collapsed entity association candidates
foreach (AssociationSet storeAssociationSet in (IEnumerable<AssociationSet>)associationSetsFromCollapseCandidateRejects)
{
if (!IsAssociationPartOfCandidateCollapsedAssociation(session, storeAssociationSet))
{
AssociationSet set = CreateModelAssociationSet(session, storeAssociationSet);
modelEntityContainer.AddEntitySetBase(set);
}
}
// save the set that needs to be created and mapped
session.MappingLookups.CollapsedEntityAssociationSets.AddRange(session.CandidateCollapsedAssociations.Values);
// do this in a seperate loop so we are sure all the necessary EntitySets have been created
foreach (OneToOneMappingSerializer.CollapsedEntityAssociationSet collapsed in session.MappingLookups.CollapsedEntityAssociationSets)
{
AssociationSet set = CreateModelAssociationSet(session, collapsed);
modelEntityContainer.AddEntitySetBase(set);
}
if (this._targetEntityFrameworkVersion >= EntityFrameworkVersions.Version2)
{
Debug.Assert(EntityFrameworkVersions.Latest == EntityFrameworkVersions.Version3, "Did you add a new framework version");
// add LazyLoadingEnabled=true to the EntityContainer
MetadataProperty lazyLoadingAttribute =
new MetadataProperty(
DesignXmlConstants.EdmAnnotationNamespace + ":" + DesignXmlConstants.LazyLoadingEnabled,
TypeUsage.CreateStringTypeUsage(
PrimitiveType.GetEdmPrimitiveType(
PrimitiveTypeKind.String),
false,
false),
true);
modelEntityContainer.AddMetadataProperties(new List<MetadataProperty>() { lazyLoadingAttribute });
this._hasAnnotationNamespace = true;
}
// Map store functions to function imports.
MapFunctions(session, modelEntityContainer);
if (!EntityStoreSchemaGenerator.HasErrorSeverityErrors(session.Errors))
{
// add them to the collection so they will work if someone wants to use the collection
foreach (EntityType type in session.MappingLookups.StoreEntityTypeToModelEntityType.Values)
{
type.SetReadOnly();
session.EdmItemCollection.AddInternal(type);
}
foreach (AssociationType type in session.MappingLookups.StoreAssociationTypeToModelAssociationType.Values)
{
type.SetReadOnly();
session.EdmItemCollection.AddInternal(type);
}
foreach (OneToOneMappingSerializer.CollapsedEntityAssociationSet set in session.MappingLookups.CollapsedEntityAssociationSets)
{
set.ModelAssociationSet.ElementType.SetReadOnly();
session.EdmItemCollection.AddInternal(set.ModelAssociationSet.ElementType);
}
modelEntityContainer.SetReadOnly();
session.EdmItemCollection.AddInternal(modelEntityContainer);
_modelEntityContainer = modelEntityContainer;
_mappingLookups = session.MappingLookups;
_edmItemCollection = session.EdmItemCollection;
}
}
catch (Exception e)
{
if (MetadataUtil.IsCatchableExceptionType(e))
{
// an exception in the code is definitely an error
string message = EDesignUtil.GetMessagesFromEntireExceptionChain(e);
session.AddError(message,
ModelBuilderErrorCode.UnknownError,
EdmSchemaErrorSeverity.Error,
e);
}
else
{
throw;
}
}
return session.Errors;
}
/// <summary>
/// Generates a single query view for a given Extent and type. It is used to generate OfType and OfTypeOnly views.
/// </summary>
/// <param name="includeSubtypes">Whether the view should include extents that are subtypes of the given entity</param>
private bool TryGenerateQueryViewOfType(EntityContainer entityContainer, EntitySetBase entity, EntityTypeBase type, bool includeSubtypes, out GeneratedView generatedView)
{
Debug.Assert(entityContainer != null);
Debug.Assert(entity != null);
Debug.Assert(type != null);
if (type.Abstract)
{
generatedView = null;
return false;
}
//Get the mapping that has the entity container mapped.
StorageEntityContainerMapping entityContainerMap = MappingMetadataHelper.GetEntityContainerMap(m_storageMappingItemCollection, entityContainer);
Debug.Assert(!entityContainerMap.IsEmpty, "There are no entity set maps");
bool success;
ViewGenResults viewGenResults = ViewgenGatekeeper.GenerateTypeSpecificQueryView(entityContainerMap, m_config, entity, type, includeSubtypes, out success);
if (!success)
{
generatedView = null;
return false; //could not generate view
}
KeyToListMap<EntitySetBase, GeneratedView> extentMappingViews = viewGenResults.Views;
if (viewGenResults.HasErrors)
{
throw new MappingException(Helper.CombineErrorMessage(viewGenResults.Errors));
}
Debug.Assert(extentMappingViews.AllValues.Count() == 1, "Viewgen should have produced only one view");
generatedView = extentMappingViews.AllValues.First();
return true;
}
/// <summary>
/// Returns the extent in the target space, for the given entity container.
/// </summary>
/// <param name="entityContainer">name of the entity container in target space</param>
/// <param name="extentName">name of the extent</param>
/// <param name="ignoreCase">Whether to do case-sensitive member look up or not</param>
/// <param name="outSet">extent in target space, if a match is found</param>
/// <returns>returns true, if a match is found otherwise returns false</returns>
internal bool TryGetExtent(EntityContainer entityContainer, String extentName, bool ignoreCase, out EntitySetBase outSet)
{
// There are no entity containers in the OSpace. So there is no mapping involved.
// Hence the name should be a valid name in the CSpace.
return(entityContainer.BaseEntitySets.TryGetValue(extentName, ignoreCase, out outSet));
}
/// <summary>
/// Gets MetadataItem object for URI relative path under the specified EntityContainer instance
/// </summary>
/// <param name="container">The EntityContainer instance</param>
/// <param name="pathSegment">The URI relative path</param>
/// <param name="uriType">Output parameter of UriType value</param>
/// <returns>The MetadataItem instance if one is found; null otherwise</returns>
private static MetadataItem GetTargetType(EntityContainer container, IEnumerable<string> pathSegment, ref UriType uriType)
{
ODataUriItem curr = new ODataUriItem(container, UriType.URI_Container);
foreach (var segment in pathSegment)
{
// to normalize first segment
string segmentKey;
string segmentCore = ResourcePathHelper.ParseSegment(segment, out segmentKey);
ODataUriItem subItem = curr.GetItem(segmentCore);
if (subItem == null)
{
uriType = UriType.URIUNKNOWN;
return null;
}
if (subItem.uriType == UriType.URI1 && !string.IsNullOrEmpty(segmentKey))
{
subItem = new ODataUriItem(((EntitySet)subItem.Item).ElementType, UriType.URI2);
}
curr = subItem;
}
uriType = curr.uriType;
return curr.Item;
}
// Caller can specify that the results should not be sorted if they may add something to the list and sort themselves
internal List<EntityDataSourceEntitySetNameItem> GetEntitySets(EntityContainer entityContainer, bool sortResults)
{
List<EntityDataSourceEntitySetNameItem> entitySetNameItems = new List<EntityDataSourceEntitySetNameItem>();
if (entityContainer != null)
{
foreach (EntitySetBase entitySetBase in entityContainer.BaseEntitySets)
{
// BaseEntitySets returns RelationshipSets too, but we only want EntitySets
if (entitySetBase.BuiltInTypeKind == BuiltInTypeKind.EntitySet)
{
entitySetNameItems.Add(new EntityDataSourceEntitySetNameItem(entitySetBase as EntitySet));
}
}
if (sortResults)
{
entitySetNameItems.Sort();
}
}
return entitySetNameItems;
}
/// <summary>
/// Get an entity container based upon the strong name of the container
/// If no entity container is found, returns null, else returns the first one/// </summary>
/// <param name="name">name of the entity container</param>
/// <param name="entityContainer"></param>
/// <exception cref="System.ArgumentNullException">if name argument is null</exception>
public bool TryGetEntityContainer(string name, out EntityContainer entityContainer)
{
EntityUtil.GenericCheckArgumentNull(name, "name");
return(this.TryGetEntityContainer(name, false /*ignoreCase*/, out entityContainer));
}
internal void SetDefaultContainer(string defaultContainerName)
{
EntityContainer container = null;
if (!String.IsNullOrEmpty(defaultContainerName))
{
if (!MetadataWorkspace.TryGetEntityContainer(defaultContainerName, DataSpace.CSpace, out container))
{
throw new ArgumentException(
Strings.ObjectContext_InvalidDefaultContainerName(defaultContainerName), "defaultContainerName");
}
}
_defaultContainer = container;
}
internal EntityContainerExpression(EntityContainer entityContainer)
: base(ExpressionResolutionClass.EntityContainer)
{
EntityContainer = entityContainer;
}
/// <summary>
/// The constructor for constructing the collection with the given items
/// </summary>
/// <param name="entityContainer">The entity container that has this entity set collection</param>
/// <param name="items">The items to populate the collection</param>
/// <exception cref="System.ArgumentNullException">Thrown if the argument entityContainer is null</exception>
internal EntitySetBaseCollection(EntityContainer entityContainer, IEnumerable <EntitySetBase> items)
: base(items)
{
EntityUtil.GenericCheckArgumentNull(entityContainer, "entityContainer");
_entityContainer = entityContainer;
}
/// <summary>
/// Returns mappings for the given set/type only if the mapping applies also to childEntittyType either via IsTypeOf or explicitly specifying multiple types in mapping fragments.
/// </summary>
private static IEnumerable <StorageTypeMapping> GetIsTypeOfMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType, EntityTypeBase childEntityType)
{
foreach (var mapping in GetMappingsForEntitySetAndType(mappingCollection, container, entitySet, entityType))
{
if (mapping.IsOfTypes.Any(parentType => parentType.IsAssignableFrom(childEntityType)) || mapping.Types.Contains(childEntityType))
{
yield return(mapping);
}
}
}
internal static StorageEntityContainerMapping GetEntityContainerMap(StorageMappingItemCollection mappingCollection, EntityContainer entityContainer)
{
ReadOnlyCollection <StorageEntityContainerMapping> entityContainerMaps = mappingCollection.GetItems <StorageEntityContainerMapping>();
StorageEntityContainerMapping entityContainerMap = null;
foreach (StorageEntityContainerMapping map in entityContainerMaps)
{
if ((entityContainer.Equals(map.EdmEntityContainer)) ||
(entityContainer.Equals(map.StorageEntityContainer)))
{
entityContainerMap = map;
break;
}
}
if (entityContainerMap == null)
{
throw new MappingException(System.Data.Entity.Strings.Mapping_NotFound_EntityContainer(entityContainer.Name));
}
return(entityContainerMap);
}
/// <summary>
/// Returns all mapping fragments for the given entity set's types and their parent types.
/// </summary>
internal static IEnumerable <StorageTypeMapping> GetMappingsForEntitySetAndSuperTypes(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase childEntityType)
{
return(MetadataHelper.GetTypeAndParentTypesOf(childEntityType, mappingCollection.EdmItemCollection, true /*includeAbstractTypes*/).SelectMany(
edmType =>
edmType.EdmEquals(childEntityType) ?
GetMappingsForEntitySetAndType(mappingCollection, container, entitySet, (edmType as EntityTypeBase))
: GetIsTypeOfMappingsForEntitySetAndType(mappingCollection, container, entitySet, (edmType as EntityTypeBase), childEntityType)
).ToList());
}
/// <summary>
/// Get an entity container based upon the strong name of the container
/// If no entity container is found, returns null, else returns the first one/// </summary>
/// <param name="name">name of the entity container</param>
/// <param name="ignoreCase">true for case-insensitive lookup</param>
/// <param name="entityContainer">returns the entity container if a match is found</param>
/// <returns>returns true if a match is found, otherwise false</returns>
internal virtual bool TryGetEntityContainer(string name, bool ignoreCase, out EntityContainer entityContainer)
{
return(MetadataWorkspace.TryGetEntityContainer(name, ignoreCase, TargetDataspace, out entityContainer));
}
/// <summary>
///
/// </summary>
/// <param name="generator"></param>
/// <param name="entityContainer"></param>
public EntityContainerEmitter(ClientApiGenerator generator, EntityContainer entityContainer)
: base(generator, entityContainer)
{
}
/// <summary>
/// Change the entity container without doing fixup in the entity set collection
/// </summary>
internal void ChangeEntityContainerWithoutCollectionFixup(EntityContainer newEntityContainer)
{
_entityContainer = newEntityContainer;
}
// This collection allows changes to be intercepted before and after they are passed to MetadataCollection. The interception
// is required to update the EntitySet's back-reference to the EntityContainer.
#region Constructors
/// <summary>
/// Default constructor for constructing an empty collection
/// </summary>
/// <param name="entityContainer">The entity container that has this entity set collection</param>
/// <exception cref="System.ArgumentNullException">Thrown if the argument entityContainer is null</exception>
internal EntitySetBaseCollection(EntityContainer entityContainer)
: this(entityContainer, null)
{
}
/// <summary>
/// Constructs an EntityModelGenerator
/// </summary>
/// <param name="storeEntityContainer"></param>
public EntityModelSchemaGenerator(EntityContainer storeEntityContainer)
{
Initialize(storeEntityContainer, null, null, null);
}
internal void SetDefaultContainer(string defaultContainerName)
{
EntityContainer container = null;
if (!String.IsNullOrEmpty(defaultContainerName))
{
if (!MetadataWorkspace.TryGetEntityContainer(defaultContainerName, DataSpace.CSpace, out container))
{
throw EntityUtil.InvalidDefaultContainerName("defaultContainerName", defaultContainerName);
}
}
_defaultContainer = container;
}
/// <summary>
/// Constructs an EntityModelGenerator
/// </summary>
/// <param name="storeEntityContainer">The Store EntityContainer to create the Model Metadata from.</param>
/// <param name="namespaceName">The name to give the namespace. If null, the name of the storeEntityContainer will be used.</param>
/// <param name="modelEntityContainerName">The name to give the Model EntityContainer. If null, a modified version of the namespace of the of a type referenced in storeEntityContainer will be used.</param>
public EntityModelSchemaGenerator(EntityContainer storeEntityContainer, string namespaceName, string modelEntityContainerName)
{
EDesignUtil.CheckArgumentNull(namespaceName, "namespaceName");
EDesignUtil.CheckArgumentNull(modelEntityContainerName, "modelEntityContainerName");
Initialize(storeEntityContainer, null, namespaceName, modelEntityContainerName);
}
internal static IEnumerable <StorageTypeMapping> GetMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType)
{
Debug.Assert(entityType != null, "EntityType parameter should not be null.");
StorageEntityContainerMapping containerMapping = GetEntityContainerMap(mappingCollection, container);
StorageSetMapping extentMap = containerMapping.GetSetMapping(entitySet.Name);
//The Set may have no mapping
if (extentMap != null)
{
//for each mapping fragment of Type we are interested in within the given set
//Check use of IsOfTypes in Code review
foreach (StorageTypeMapping typeMap in extentMap.TypeMappings.Where(map => map.Types.Union(map.IsOfTypes).Contains(entityType)))
{
yield return(typeMap);
}
}
}
/// <summary>
/// Get an entity container based upon the strong name of the container
/// If no entity container is found, returns null, else returns the first one/// </summary>
/// <param name="name">name of the entity container</param>
/// <param name="ignoreCase">true for case-insensitive lookup</param>
/// <param name="entityContainer">returns the entity container if a match is found</param>
/// <returns>returns true if a match is found, otherwise false</returns>
internal virtual bool TryGetEntityContainer(string name, bool ignoreCase, out EntityContainer entityContainer)
{
return MetadataWorkspace.TryGetEntityContainer(name, ignoreCase, TargetDataspace, out entityContainer);
}
internal OneToOneMappingSerializer(MappingLookups lookups,
EntityContainer storeContainer,
EntityContainer modelContainer,
Version schemaVersion)
{
EDesignUtil.CheckArgumentNull(lookups, "lookups");
EDesignUtil.CheckArgumentNull(storeContainer, "storeContainer");
EDesignUtil.CheckArgumentNull(modelContainer, "modelContainer");
_lookups = lookups;
_storeContainer = storeContainer;
_modelContainer = modelContainer;
_xmlNamespace = EntityFrameworkVersions.GetSchemaNamespace(schemaVersion, DataSpace.CSSpace);
}
/// <summary>
/// Returns the function import in the target space, for the given entity container.
/// </summary>
internal bool TryGetFunctionImport(EntityContainer entityContainer, String functionImportName, bool ignoreCase, out EdmFunction functionImport)
{
// There are no entity containers in the OSpace. So there is no mapping involved.
// Hence the name should be a valid name in the CSpace.
functionImport = null;
if (ignoreCase)
{
functionImport = entityContainer.FunctionImports.Where(fi => String.Equals(fi.Name, functionImportName, StringComparison.OrdinalIgnoreCase)).SingleOrDefault();
}
else
{
functionImport = entityContainer.FunctionImports.Where(fi => fi.Name == functionImportName).SingleOrDefault();
}
return functionImport != null;
}
/// <summary>
/// Creates 'transient' metadataworkspace based on store schema (EntityContainer) and trivial C-S mapping
/// </summary>
/// <param name="entityContainer"></param>
/// <param name="session"></param>
/// <returns></returns>
private MetadataWorkspace CreateMetadataWorkspace(EntityContainer entityContainer, LoadMethodSessionState session)
{
MetadataWorkspace metadataWorkspace = new MetadataWorkspace();
EntityModelSchemaGenerator modelGen = new EntityModelSchemaGenerator(entityContainer);
modelGen.GenerateForeignKeyProperties = this.GenerateForeignKeyProperties;
IEnumerable<EdmSchemaError> errors = modelGen.GenerateMetadata();
if (EntityStoreSchemaGenerator.HasErrorSeverityErrors(errors))
{
// this is a 'transient' metadataworkspace
// no errors from this metadataworkspace should be shown to the user
return null;
}
// register edmitemcollection
metadataWorkspace.RegisterItemCollection(modelGen.EdmItemCollection);
// register StoreItemCollection
metadataWorkspace.RegisterItemCollection(session.ItemCollection);
// register mapping
using (MemoryStream memStream = new MemoryStream())
{
using (XmlWriter xmlWriter = XmlWriter.Create(memStream))
{
modelGen.WriteStorageMapping(xmlWriter);
xmlWriter.Close();
}
memStream.Seek(0, SeekOrigin.Begin);
using (XmlReader xmlReader = XmlReader.Create(memStream))
{
List<XmlReader> xmlReaders = new List<XmlReader>();
xmlReaders.Add(xmlReader);
metadataWorkspace.RegisterItemCollection(new StorageMappingItemCollection(modelGen.EdmItemCollection,
session.ItemCollection,
xmlReaders));
}
}
return metadataWorkspace;
}
// effects: Given a store-side container, returns all the foreign key
// constraints specified for different tables
internal static List<ForeignConstraint> GetForeignConstraints(EntityContainer container)
{
var foreignKeyConstraints = new List<ForeignConstraint>();
// Go through all the extents and get the associations
foreach (var extent in container.BaseEntitySets)
{
var relationSet = extent as AssociationSet;
if (relationSet == null)
{
continue;
}
// Keep track of the end to EntitySet mapping
var endToExtents = new Dictionary<string, EntitySet>();
foreach (var end in relationSet.AssociationSetEnds)
{
endToExtents.Add(end.Name, end.EntitySet);
}
var relationType = relationSet.ElementType;
// Go through each referential constraint, determine the name
// of the tables that the constraint refers to and then
// create the foreign key constraint between the tables
// Wow! We go to great lengths to make it cumbersome for a
// programmer to deal with foreign keys
foreach (var constraint in relationType.ReferentialConstraints)
{
// Note: We are correlating the constraint's roles with
// the ends above using the role names, i.e.,
// FromRole.Name and ToRole.Name here and end.Role above
var parentExtent = endToExtents[constraint.FromRole.Name];
var childExtent = endToExtents[constraint.ToRole.Name];
var foreignKeyConstraint = new ForeignConstraint(
relationSet, parentExtent, childExtent,
constraint.FromProperties, constraint.ToProperties);
foreignKeyConstraints.Add(foreignKeyConstraint);
}
}
return foreignKeyConstraints;
}
/// <summary>
/// Populates DefiningQuery attribute of RO view entities
/// </summary>
/// <param name="viewEntitySets"></param>
/// <param name="entityContainer"></param>
/// <param name="session"></param>
private void FixupKeylessEntitySets(EntityContainer entityContainer, LoadMethodSessionState session)
{
// if there are views to process
if (session.ReadOnlyEntities.Count > 0)
{
//
// create 'bogus' metadataworkspace
//
MetadataWorkspace metadataWorkspace = CreateMetadataWorkspace(entityContainer, session);
if (null == metadataWorkspace)
{
// failed to create bogus metadataworkspace
return;
}
//
// For all tables/views that we could infer valid keys, update DefiningQuery with
// provider specific ReadOnly view SQL
//
foreach (EntityType entityType in session.ReadOnlyEntities)
{
EntitySet entitySet = session.EntityTypeToSet[entityType];
DbObjectKey key = session.GetKey(entityType);
// add properties that make it possible for the designer to track back these
// types to their source db objects
List<MetadataProperty> properties = new List<MetadataProperty>();
if (key.Schema != null)
{
properties.Add(System.Data.EntityModel.SchemaObjectModel.SchemaElement.CreateMetadataPropertyFromOtherNamespaceXmlArtifact(DesignXmlConstants.EntityStoreSchemaGeneratorNamespace, DesignXmlConstants.EntityStoreSchemaGeneratorSchemaAttributeName, key.Schema));
}
properties.Add(System.Data.EntityModel.SchemaObjectModel.SchemaElement.CreateMetadataPropertyFromOtherNamespaceXmlArtifact(DesignXmlConstants.EntityStoreSchemaGeneratorNamespace, DesignXmlConstants.EntityStoreSchemaGeneratorNameAttributeName, key.TableName));
entitySet.AddMetadataProperties(properties);
FixupViewEntitySetDefiningQuery(entitySet, metadataWorkspace);
}
}
}
/// <summary>
/// Gets sub item of the specified EntityContainer instance by the name
/// </summary>
/// <param name="container">The EntityContainer instance</param>
/// <param name="name">The name of sub item</param>
/// <returns>sub item object if one is found; null otherwise</returns>
private static ODataUriItem GetItem(EntityContainer container, string name)
{
ODataUriItem result = null;
EntitySet entitySet;
bool isEntitySet = container.TryGetEntitySetByName(name, false, out entitySet);
if (isEntitySet)
{
return new ODataUriItem(entitySet, UriType.URI1);
}
else
{
var fs = container.FunctionImports.Where(x => x.Name.Equals(name, StringComparison.Ordinal));
if (fs.Any())
{
EdmFunction func = fs.First();
var retVal = func.ReturnParameter;
var retType = retVal.TypeUsage.EdmType;
UriType retUriType = GetUriTypeOfFuncReturn(retType);
if (retUriType == UriType.URI11 || retUriType == UriType.URI13 || retUriType == UriType.URI_CollEt)
{
result = new ODataUriItem(((CollectionType)retType).TypeUsage.EdmType, retUriType);
}
else
{
result = new ODataUriItem(retType, retUriType);
}
}
}
return result;
}
internal static IEnumerable <StorageEntityTypeModificationFunctionMapping> GetModificationFunctionMappingsForEntitySetAndType(StorageMappingItemCollection mappingCollection, EntityContainer container, EntitySetBase entitySet, EntityTypeBase entityType)
{
StorageEntityContainerMapping containerMapping = GetEntityContainerMap(mappingCollection, container);
StorageSetMapping extentMap = containerMapping.GetSetMapping(entitySet.Name);
StorageEntitySetMapping entitySetMapping = extentMap as StorageEntitySetMapping;
//The Set may have no mapping
if (entitySetMapping != null)
{
if (entitySetMapping != null) //could be association set mapping
{
foreach (var v in entitySetMapping.ModificationFunctionMappings.Where(functionMap => functionMap.EntityType.Equals(entityType)))
{
yield return(v);
}
}
}
}
