private IEdmEntitySet GetEntitySet(GraphQLFieldSelection selection)
{
var listGraphType = (ListGraphType)_schema.Query.Fields.Single(f => f.Name == selection.Name.Value).ResolvedType;
Type entityType = listGraphType.ResolvedType.GetType().GetGenericArguments()[0];
return(OeEdmClrHelper.GetEntitySet(_edmModel, entityType));
}
public override void AttachEntity(Object dataContext, ODataResourceBase entry)
{
var dbContext = (DbContext)dataContext;
InternalEntityEntry internalEntry = GetEntityEntry(dbContext, entry);
if (internalEntry == null)
{
Object entity = CreateEntity(dbContext, entry);
EntityEntry entityEntry = dbContext.Attach(entity);
AddInstanceAnnotation(entry, entityEntry);
IReadOnlyList <IProperty> keyProperties = _entityType.FindPrimaryKey().Properties;
foreach (ODataProperty odataProperty in entry.Properties)
{
IProperty property = _entityType.FindProperty(odataProperty.Name);
if (!keyProperties.Contains(property))
{
entityEntry.Property(property.Name).IsModified = true;
}
}
}
else
{
foreach (ODataProperty odataProperty in entry.Properties)
{
IProperty property = _entityType.FindProperty(odataProperty.Name);
Object value = OeEdmClrHelper.GetClrValue(property.ClrType, odataProperty.Value);
internalEntry.SetProperty(property, value, false);
}
}
}
public override void AttachEntity(Object dataContext, ODataResourceBase entry)
{
var context = (T)dataContext;
InternalEntityEntry internalEntry = GetEntityEntry(context, entry);
if (internalEntry == null)
{
TEntity entity = CreateEntity(context, entry);
_getEntitySet(context).Attach(entity);
internalEntry = _getEntitySet(context).Attach(entity).GetInfrastructure();
IKey key = _entityType.FindPrimaryKey();
foreach (ODataProperty odataProperty in entry.Properties)
{
IProperty property = _entityType.FindProperty(odataProperty.Name);
if (!key.Properties.Contains(property))
{
internalEntry.SetPropertyModified(property);
}
}
}
else
{
foreach (ODataProperty odataProperty in entry.Properties)
{
IProperty property = _entityType.FindProperty(odataProperty.Name);
Object value = OeEdmClrHelper.GetClrValue(property.ClrType, odataProperty.Value);
internalEntry.SetProperty(property, value);
}
}
}
private void Translate(OeNavigationSelectItem parentNavigationItem, ExpandedNavigationSelectItem item)
{
IEdmEntitySetBase entitySet = OeEdmClrHelper.GetEntitySet(_edmModel, item);
OeNavigationSelectItemKind kind;
if (_notSelected)
{
kind = OeNavigationSelectItemKind.NotSelected;
}
else if (item.SelectAndExpand.IsNextLink())
{
kind = OeNavigationSelectItemKind.NextLink;
}
else
{
kind = OeNavigationSelectItemKind.Normal;
}
var childNavigationSelectItem = new OeNavigationSelectItem(entitySet, parentNavigationItem, item, kind);
childNavigationSelectItem = parentNavigationItem.AddOrGetNavigationItem(childNavigationSelectItem);
if (childNavigationSelectItem.Kind == OeNavigationSelectItemKind.NextLink)
{
return;
}
foreach (SelectItem selectItemClause in item.SelectAndExpand.SelectedItems)
{
Translate(childNavigationSelectItem, selectItemClause);
}
}
public MethodCallExpression Build(Expression outer, Expression inner, ODataPath odataPath, OrderByClause orderBy, long?skip, long?top)
{
var segment = (NavigationPropertySegment)odataPath.LastSegment;
IEdmNavigationProperty navigationProperty = segment.NavigationProperty;
if (navigationProperty.ContainsTarget)
{
ModelBuilder.ManyToManyJoinDescription joinDescription = _edmModel.GetManyToManyJoinDescription(navigationProperty);
IEdmEntitySet joinEntitySet = OeEdmClrHelper.GetEntitySet(_edmModel, joinDescription.JoinNavigationProperty);
outer = OeEnumerableStub.CreateEnumerableStubExpression(joinDescription.JoinClassType, joinEntitySet);
navigationProperty = joinDescription.TargetNavigationProperty;
}
Type outerType = OeExpressionHelper.GetCollectionItemType(outer.Type);
ParameterExpression outerParameter = Expression.Parameter(outerType, outerType.Name);
inner = new ReplaceParameterVisitor(outerParameter).Visit(inner); //replace $it
Expression subquery = CreateWhereExpression(outerParameter, inner, navigationProperty);
subquery = _expressionBuilder.ApplyOrderBy(subquery, orderBy);
subquery = _expressionBuilder.ApplySkip(subquery, skip, odataPath);
subquery = _expressionBuilder.ApplyTake(subquery, top, odataPath);
Type innerType = OeExpressionHelper.GetCollectionItemType(inner.Type);
MethodInfo selectManyMethdoInfo = OeMethodInfoHelper.GetSelectManyMethodInfo(outerType, innerType);
return(Expression.Call(selectManyMethdoInfo, outer, Expression.Lambda(subquery, outerParameter)));
}
public static async Task WriteCollectionAsync(IEdmModel edmModel, ODataUri odataUri, IAsyncEnumerator <Object> asyncEnumerator, Stream responseStream)
{
var importSegment = (OperationImportSegment)odataUri.Path.LastSegment;
IEdmOperationImport operationImport = importSegment.OperationImports.Single();
Type returnType = edmModel.GetClrType(operationImport.Operation.ReturnType.Definition);
IODataRequestMessage requestMessage = new Infrastructure.OeInMemoryMessage(responseStream, null);
using (ODataMessageWriter messageWriter = new ODataMessageWriter(requestMessage,
new ODataMessageWriterSettings()
{
EnableMessageStreamDisposal = false, ODataUri = odataUri
}, edmModel))
{
IEdmTypeReference typeRef = OeEdmClrHelper.GetEdmTypeReference(edmModel, returnType);
ODataCollectionWriter writer = await messageWriter.CreateODataCollectionWriterAsync(typeRef).ConfigureAwait(false);
await writer.WriteStartAsync(new ODataCollectionStart()).ConfigureAwait(false);
while (await asyncEnumerator.MoveNextAsync().ConfigureAwait(false))
{
Object value = asyncEnumerator.Current;
if (value != null && value.GetType().IsEnum)
{
value = value.ToString();
}
await writer.WriteItemAsync(value).ConfigureAwait(false);
}
await writer.WriteEndAsync().ConfigureAwait(false);
}
}
private static OeSkipTokenNameValue[] ParseJson(IEdmModel model, String skipToken, IEdmStructuralProperty[] keys)
{
var skipTokenNameValues = new OeSkipTokenNameValue[keys.Length];
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(skipToken)))
{
IODataRequestMessage requestMessage = new OeInMemoryMessage(stream, null);
using (ODataMessageReader messageReader = new ODataMessageReader(requestMessage, ReaderSettings, model))
{
var operation = new EdmAction("", "", null);
foreach (IEdmStructuralProperty key in keys)
{
operation.AddParameter(GetPropertyName(key), key.Type);
}
ODataParameterReader reader = messageReader.CreateODataParameterReader(operation);
int i = 0;
while (reader.Read())
{
Object value = reader.Value;
if (value is ODataEnumValue enumValue)
{
value = OeEdmClrHelper.GetValue(model, enumValue);
}
skipTokenNameValues[i++] = new OeSkipTokenNameValue(reader.Name, value);
}
}
}
return(skipTokenNameValues);
}
public MethodCallExpression Build(IEdmModel edmModel, Expression outerSource, Expression innerSource,
IReadOnlyList <IEdmNavigationProperty> joinPath, IEdmNavigationProperty navigationProperty)
{
if (navigationProperty.ContainsTarget)
{
ModelBuilder.ManyToManyJoinDescription joinDescription = edmModel.GetManyToManyJoinDescription(navigationProperty);
IEdmEntitySet joinEntitySet = OeEdmClrHelper.GetEntitySet(edmModel, joinDescription.JoinNavigationProperty);
Expression joinSource = OeEnumerableStub.CreateEnumerableStubExpression(joinDescription.JoinClassType, joinEntitySet);
outerSource = Build(outerSource, joinSource, joinPath, joinDescription.JoinNavigationProperty, false);
AddJoinPath(joinPath, joinDescription.JoinNavigationProperty);
var fixedJoinPath = new IEdmNavigationProperty[joinPath.Count + 1];
for (int i = 0; i < joinPath.Count; i++)
{
fixedJoinPath[i] = joinPath[i];
}
fixedJoinPath[fixedJoinPath.Length - 1] = joinDescription.JoinNavigationProperty;
outerSource = Build(outerSource, innerSource, fixedJoinPath, joinDescription.TargetNavigationProperty, true);
_joinPaths.RemoveAt(_joinPaths.Count - 1);
}
else
{
outerSource = Build(outerSource, innerSource, joinPath, navigationProperty, false);
}
AddJoinPath(joinPath, navigationProperty);
return((MethodCallExpression)outerSource);
}
private MethodCallExpression?GetJoin(Expression outer, MemberExpression navigationProperty)
{
Type outerType = outer.Type;
Type innerType = navigationProperty.Type;
IEdmModel?edmModel = _edmModel.GetEdmModel(outerType);
if (edmModel == null)
{
return(null);
}
Db.OeDataAdapter dataAdapter = edmModel.GetDataAdapter(edmModel.EntityContainer);
Db.OeEntitySetAdapter?outerEntitySetAdapter = dataAdapter.EntitySetAdapters.Find(outerType);
if (outerEntitySetAdapter == null)
{
throw new InvalidOperationException("OeEntitySetAdapter not found for type " + outerType.Name);
}
IEdmEntitySet outerEntitySet = OeEdmClrHelper.GetEntitySet(_edmModel, outerEntitySetAdapter.EntitySetName);
IEdmNavigationProperty edmNavigationProperty = outerEntitySet.EntityType().NavigationProperties().Single(p => p.Name == navigationProperty.Member.Name);
Db.OeEntitySetAdapter?innerEntitySetAdapter = dataAdapter.EntitySetAdapters.Find(innerType);
if (innerEntitySetAdapter == null)
{
throw new InvalidOperationException("OeEntitySetAdapter not found for type " + innerType.Name);
}
IEdmEntitySet entitySet = edmModel.FindDeclaredEntitySet(innerEntitySetAdapter.EntitySetName);
ConstantExpression innerSource = OeEnumerableStub.CreateEnumerableStubExpression(innerType, entitySet);
return(GetJoin(outer, innerSource, edmNavigationProperty));
}
public override void RemoveEntity(Object dataContext, ODataResourceBase entry)
{
var context = (T)dataContext;
InitKey(context);
ObjectContext objectContext = ((IObjectContextAdapter)context).ObjectContext;
var entity = (TEntity)OeEdmClrHelper.CreateEntity(EntityType, entry);
EntityKey entityKey = objectContext.CreateEntityKey(EntitySetName, entity);
if (objectContext.ObjectStateManager.TryGetObjectStateEntry(entityKey, out ObjectStateEntry objectStateEntry))
{
objectStateEntry.ChangeState(EntityState.Deleted);
}
else
{
if (_isCascade && !_isSelfReference)
{
context.Entry(entity).State = EntityState.Deleted;
}
else
{
var keyValues = new Object[entityKey.EntityKeyValues.Length];
for (int i = 0; i < keyValues.Length; i++)
{
keyValues[i] = entityKey.EntityKeyValues[i].Value;
}
IDbSet <TEntity> dbSet = _getEntitySet(context);
context.Entry(dbSet.Find(keyValues)).State = EntityState.Deleted;
}
}
}
public override void AddEntity(Object dataContext, ODataResourceBase entry)
{
var entity = (TEntity)OeEdmClrHelper.CreateEntity(EntityType, entry);
AddInstanceAnnotation(entry, entity);
GetTable(dataContext).Insert(entity);
}
public static IEnumerable <KeyValuePair <String, Object> > ParseJson(IEdmModel model, String skipToken, IEnumerable <IEdmStructuralProperty> keys)
{
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(skipToken)))
{
IODataRequestMessage requestMessage = new OeInMemoryMessage(stream, null);
using (ODataMessageReader messageReader = new ODataMessageReader(requestMessage, ReaderSettings, model))
{
var operation = new EdmAction("", "", null);
foreach (IEdmStructuralProperty key in keys)
{
operation.AddParameter(GetPropertyName(key), key.Type);
}
ODataParameterReader reader = messageReader.CreateODataParameterReader(operation);
while (reader.Read())
{
Object value = reader.Value;
if (value is ODataEnumValue enumValue)
{
value = OeEdmClrHelper.GetValue(model, enumValue);
}
yield return(new KeyValuePair <String, Object>(reader.Name, value));
}
}
}
}
public override void AttachEntity(Object dataContext, ODataResourceBase entry)
{
var entity = (TEntity)OeEdmClrHelper.CreateEntity(EntityType, entry);
ObjectContext objectContext = ((IObjectContextAdapter)dataContext).ObjectContext;
EntityKey entityKey = objectContext.CreateEntityKey(EntitySetName, entity);
if (objectContext.ObjectStateManager.TryGetObjectStateEntry(entityKey, out ObjectStateEntry objectStateEntry))
{
foreach (ODataProperty odataProperty in entry.Properties)
{
if (Array.Find(objectStateEntry.EntityKey.EntityKeyValues, k => k.Key == odataProperty.Name) == null)
{
int i = objectStateEntry.CurrentValues.GetOrdinal(odataProperty.Name);
objectStateEntry.CurrentValues.SetValue(i, odataProperty.Value);
}
}
}
else
{
var context = (T)dataContext;
_getEntitySet(context).Attach(entity);
objectContext.ObjectStateManager.TryGetObjectStateEntry(entityKey, out objectStateEntry);
foreach (ODataProperty odataProperty in entry.Properties)
{
if (Array.Find(objectStateEntry.EntityKey.EntityKeyValues, k => k.Key == odataProperty.Name) == null)
{
objectStateEntry.SetModifiedProperty(odataProperty.Name);
}
}
}
}
private static ClrTableTypeEdmSet[] GetOrderedTableTypes(IEdmModel edmModel, OeEntitySetAdapterCollection entitySetAdapters)
{
var clrTypeEdmSetList = new List <ClrTableTypeEdmSet>();
foreach (OeEntitySetAdapter entitySetAdapter in entitySetAdapters)
{
IEdmEntitySet entitySet = OeEdmClrHelper.GetEntitySet(edmModel, entitySetAdapter.EntitySetName);
clrTypeEdmSetList.Add(new ClrTableTypeEdmSet(entitySetAdapter.EntityType, entitySet));
}
var orderedTableTypeList = new List <ClrTableTypeEdmSet>();
while (clrTypeEdmSetList.Count > 0)
{
for (int i = 0; i < clrTypeEdmSetList.Count; i++)
{
if (IsDependent(clrTypeEdmSetList[i], clrTypeEdmSetList, out PropertyInfo selfRefProperty))
{
Type linq2DbTableType = typeof(OeLinq2DbTable <>).MakeGenericType(clrTypeEdmSetList[i].ClrTableType);
if (selfRefProperty != null)
{
linq2DbTableType.GetProperty(nameof(OeLinq2DbTable <Object> .SelfRefProperty)).SetValue(null, selfRefProperty);
}
orderedTableTypeList.Add(clrTypeEdmSetList[i]);
clrTypeEdmSetList.RemoveAt(i);
break;
}
}
}
return(orderedTableTypeList.ToArray());
}
private Expression GetInnerSource(OeSelectItem navigationItem, ExpandedNavigationSelectItem item)
{
Type clrEntityType = _visitor.EdmModel.GetClrType(navigationItem.EdmProperty.DeclaringType);
PropertyInfo navigationClrProperty = OeEdmClrHelper.GetPropertyIgnoreCase(clrEntityType, navigationItem.EdmProperty);
Type itemType = OeExpressionHelper.GetCollectionItemType(navigationClrProperty.PropertyType);
if (itemType == null)
{
itemType = navigationClrProperty.PropertyType;
}
var visitor = new OeQueryNodeVisitor(_visitor, Expression.Parameter(itemType));
var expressionBuilder = new OeExpressionBuilder(_joinBuilder, visitor);
Expression innerSource = Expression.Constant(null, typeof(IEnumerable <>).MakeGenericType(itemType));
innerSource = expressionBuilder.ApplyFilter(innerSource, item.FilterOption);
if (item.SkipOption != null || item.TopOption != null)
{
Expression source = Expression.Constant(null, typeof(IEnumerable <>).MakeGenericType(navigationClrProperty.DeclaringType));
innerSource = OeCrossApplyBuilder.Build(source, innerSource, item, navigationItem.Path, expressionBuilder);
}
return(innerSource);
}
private MethodCallExpression CreateSelectExpression(Expression source, OeJoinBuilder joinBuilder)
{
if (_navigationItem.HasNavigationItems)
{
return((MethodCallExpression)source);
}
if (_navigationItem.SelectItems.Count == 0)
{
return((MethodCallExpression)source);
}
var expressions = new List <Expression>(_navigationItem.SelectItems.Count);
for (int i = 0; i < _navigationItem.SelectItems.Count; i++)
{
IEdmProperty edmProperty = _navigationItem.SelectItems[i].EdmProperty;
PropertyInfo clrProperty = OeEdmClrHelper.GetPropertyIgnoreCase(_visitor.Parameter.Type, edmProperty);
expressions.Add(Expression.MakeMemberAccess(_visitor.Parameter, clrProperty));
}
NewExpression newTupleExpression = OeExpressionHelper.CreateTupleExpression(expressions);
LambdaExpression lambda = Expression.Lambda(newTupleExpression, _visitor.Parameter);
MethodInfo selectMethodInfo = OeMethodInfoHelper.GetSelectMethodInfo(_visitor.Parameter.Type, newTupleExpression.Type);
return(Expression.Call(selectMethodInfo, source, lambda));
}
private Expression GetInnerSource(OeSelectItem navigationItem, ExpandedNavigationSelectItem item)
{
Type clrEntityType = _visitor.EdmModel.GetClrType(navigationItem.EdmProperty.DeclaringType);
PropertyInfo navigationClrProperty = clrEntityType.GetPropertyIgnoreCase(navigationItem.EdmProperty);
Type itemType = OeExpressionHelper.GetCollectionItemType(navigationClrProperty.PropertyType);
if (itemType == null)
{
itemType = navigationClrProperty.PropertyType;
}
var visitor = new OeQueryNodeVisitor(_visitor, Expression.Parameter(itemType));
var expressionBuilder = new OeExpressionBuilder(_joinBuilder, visitor);
var navigationEdmProperty = (IEdmNavigationProperty)navigationItem.EdmProperty;
if (navigationEdmProperty.ContainsTarget)
{
ModelBuilder.ManyToManyJoinDescription joinDescription = _visitor.EdmModel.GetManyToManyJoinDescription(navigationEdmProperty);
navigationEdmProperty = joinDescription.TargetNavigationProperty;
}
IEdmEntitySet innerEntitySet = OeEdmClrHelper.GetEntitySet(_visitor.EdmModel, navigationEdmProperty);
Expression innerSource = OeEnumerableStub.CreateEnumerableStubExpression(itemType, innerEntitySet);
innerSource = expressionBuilder.ApplyFilter(innerSource, item.FilterOption);
if (item.SkipOption != null || item.TopOption != null)
{
Expression source = OeEnumerableStub.CreateEnumerableStubExpression(navigationClrProperty.DeclaringType, (IEdmEntitySet)_navigationItem.EntitySet);
innerSource = OeCrossApplyBuilder.Build(source, innerSource, item, navigationItem.Path, expressionBuilder);
}
return(innerSource);
}
public async Task ExecuteResultAsync(ActionContext context)
{
var settings = new ODataMessageWriterSettings()
{
BaseUri = _odataUri.ServiceRoot,
EnableMessageStreamDisposal = false,
ODataUri = _odataUri,
Validations = ValidationKinds.ThrowIfTypeConflictsWithMetadata | ValidationKinds.ThrowOnDuplicatePropertyNames,
Version = ODataVersion.V4
};
var requestHeaders = OeRequestHeaders.Parse(context.HttpContext.Request.Headers["Accept"], context.HttpContext.Request.Headers["Prefer"]);
_metadataLevel = requestHeaders.MetadataLevel;
if (requestHeaders.MaxPageSize > 0 && PageSize == 0)
{
PageSize = requestHeaders.MaxPageSize;
}
IODataResponseMessage responseMessage = new OeInMemoryMessage(context.HttpContext.Response.Body, context.HttpContext.Request.ContentType);
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, settings, _edmModel))
{
ODataUtils.SetHeadersForPayload(messageWriter, ODataPayloadKind.ResourceSet);
IEdmEntitySet edmEntitySet = OeEdmClrHelper.GetEntitySet(_edmModel, typeof(T));
IEdmEntityType edmEntityType = edmEntitySet.EntityType();
ODataWriter writer = messageWriter.CreateODataResourceSetWriter(edmEntitySet, edmEntityType);
await SerializeAsync(writer);
}
}
public static Db.OeBoundFunctionParameter CreateBoundFunctionParameter(OeQueryContext queryContext)
{
var expressionBuilder = new OeExpressionBuilder(queryContext.JoinBuilder);
Type sourceEntityType = queryContext.EntitySetAdapter.EntityType;
IEdmEntitySet sourceEntitySet = OeEdmClrHelper.GetEntitySet(queryContext.EdmModel, queryContext.EntitySetAdapter.EntitySetName);
Expression source = OeEnumerableStub.CreateEnumerableStubExpression(sourceEntityType, sourceEntitySet);
source = expressionBuilder.ApplyNavigation(source, queryContext.ParseNavigationSegments);
IEdmEntitySet targetEntitySet = OeOperationHelper.GetEntitySet(queryContext.ODataUri.Path);
if (sourceEntitySet != targetEntitySet)
{
queryContext.ODataUri.Path = new ODataPath(new EntitySetSegment(targetEntitySet));
}
expressionBuilder = new OeExpressionBuilder(queryContext.JoinBuilder);
Type targetEntityType = queryContext.EdmModel.GetClrType(targetEntitySet.EntityType());
Expression target = OeEnumerableStub.CreateEnumerableStubExpression(targetEntityType, targetEntitySet);
target = expressionBuilder.ApplySelect(target, queryContext);
var sourceQueryExpression = new OeQueryExpression(queryContext.EdmModel, sourceEntitySet, source);
var targetQueryExpression = new OeQueryExpression(queryContext.EdmModel, targetEntitySet, target)
{
EntryFactory = expressionBuilder.CreateEntryFactory(targetEntitySet)
};
Type boundFunctionParameterType = typeof(Db.OeBoundFunctionParameter <,>).MakeGenericType(new[] { sourceEntityType, targetEntityType });
ConstructorInfo ctor = boundFunctionParameterType.GetConstructor(new[] { typeof(OeQueryExpression), typeof(OeQueryExpression) });
return((Db.OeBoundFunctionParameter)ctor.Invoke(new Object[] { sourceQueryExpression, targetQueryExpression }));
}
public override void AddEntity(Object dataContext, ODataResourceBase entry)
{
IDbSet <TEntity> dbSet = _getEntitySet((T)dataContext);
var entity = (TEntity)OeEdmClrHelper.CreateEntity(EntityType, entry);
dbSet.Add(entity);
}
private void BuildCompute(ComputeClause computeClause)
{
foreach (ComputeExpression computeExpression in computeClause.ComputedItems)
{
Expression expression = _visitor.TranslateNode(computeExpression.Expression);
IEdmTypeReference edmTypeReference = OeEdmClrHelper.GetEdmTypeReference(_visitor.EdmModel, expression.Type);
_navigationItem.AddSelectItem(new OeSelectItem(new ComputeProperty(computeExpression.Alias, edmTypeReference, expression), false));
}
}
private void BuildCompute(ComputeClause computeClause)
{
foreach (ComputeExpression computeExpression in computeClause.ComputedItems)
{
Expression expression = _visitor.TranslateNode(computeExpression.Expression);
IEdmTypeReference edmTypeReference = OeEdmClrHelper.GetEdmTypeReference(_model, expression.Type);
_selectItemInfos.Add(new SelectItemInfo(new ComputeProperty(computeExpression.Alias, edmTypeReference), expression));
}
}
public override IEnumerable <String> GetPrimaryKey(String tableName)
{
IEdmEntityType edmEntityType = OeEdmClrHelper.GetEntitySet(_edmModel, tableName).EntityType();
foreach (IEdmStructuralProperty structuralProperty in edmEntityType.Key())
{
yield return(structuralProperty.Name);
}
}
private static void FillParameters(IEdmModel edmModel, List <KeyValuePair <String, Object> > parameters, Stream requestStream, IEdmOperation operation, String contentType)
{
if (!operation.Parameters.Any())
{
return;
}
IODataRequestMessage requestMessage = new Infrastructure.OeInMemoryMessage(requestStream, contentType);
var settings = new ODataMessageReaderSettings()
{
EnableMessageStreamDisposal = false
};
using (var messageReader = new ODataMessageReader(requestMessage, settings, edmModel))
{
ODataParameterReader parameterReader = messageReader.CreateODataParameterReader(operation);
while (parameterReader.Read())
{
Object value;
switch (parameterReader.State)
{
case ODataParameterReaderState.Value:
{
value = OeEdmClrHelper.GetValue(edmModel, parameterReader.Value);
break;
}
case ODataParameterReaderState.Collection:
{
ODataCollectionReader collectionReader = parameterReader.CreateCollectionReader();
value = OeEdmClrHelper.GetValue(edmModel, ReadCollection(collectionReader));
break;
}
case ODataParameterReaderState.Resource:
{
ODataReader reader = parameterReader.CreateResourceReader();
value = OeEdmClrHelper.GetValue(edmModel, ReadResource(reader));
break;
}
case ODataParameterReaderState.ResourceSet:
{
ODataReader reader = parameterReader.CreateResourceSetReader();
value = OeEdmClrHelper.GetValue(edmModel, ReadResourceSet(reader));
break;
}
default:
continue;
}
parameters.Add(new KeyValuePair <String, Object>(parameterReader.Name, value));
}
}
}
private OeEntryFactory CreateEntryFactory(OeExpressionBuilder expressionBuilder)
{
IEdmEntitySet entitySet = OeParseNavigationSegment.GetEntitySet(ParseNavigationSegments);
if (entitySet == null)
{
entitySet = OeEdmClrHelper.GetEntitySet(EdmModel, EntitySetAdapter.EntitySetName);
}
return(expressionBuilder.CreateEntryFactory(entitySet));
}
public override Task <int> SaveChangesAsync(Object dataContext, CancellationToken cancellationToken)
{
foreach (InMemoryEntitySetAdapter entitySetAdapter in base.EntitySetAdapters)
{
if (!entitySetAdapter.IsDbQuery)
{
foreach (PropertyInfo key in ModelBuilder.OeModelBuilderHelper.GetKeyProperties(entitySetAdapter.EntityType))
{
if (key.PropertyType == typeof(int))
{
foreach (Object entity in entitySetAdapter.GetSource(dataContext))
{
var id = (int)key.GetValue(entity);
if (id < 0)
{
key.SetValue(entity, -id);
}
}
}
}
IEdmEntityType entityType = OeEdmClrHelper.GetEntitySet(_edmModel, entitySetAdapter.EntitySetName).EntityType();
foreach (IEdmNavigationProperty navigationProperty in entityType.NavigationProperties())
{
IEnumerable <IEdmStructuralProperty> edmProperties = navigationProperty.DependentProperties();
if (edmProperties != null)
{
foreach (IEdmStructuralProperty edmProperty in edmProperties)
{
if (edmProperty.DeclaringType != entityType)
{
break;
}
PropertyInfo clrProperty = entitySetAdapter.EntityType.GetProperty(edmProperty.Name) !;
if (clrProperty.PropertyType == typeof(int) || clrProperty.PropertyType == typeof(int?))
{
foreach (Object entity in entitySetAdapter.GetSource(dataContext))
{
var id = (int?)clrProperty.GetValue(entity);
if (id < 0)
{
clrProperty.SetValue(entity, -id);
}
}
}
}
}
}
}
}
return(base.SaveChangesAsync(dataContext, cancellationToken));
}
public static IReadOnlyList <KeyValuePair <String, Object?> > GetParameters(IEdmModel edmModel, ODataPathSegment segment,
IDictionary <string, SingleValueNode> parameterAliasNodes, Stream?requestStream = null, String?contentType = null)
{
var parameters = new List <KeyValuePair <String, Object?> >();
IEdmOperation operation;
IEnumerable <OperationSegmentParameter> segmentParameters;
if (segment is OperationSegment operationSegment)
{
segmentParameters = operationSegment.Parameters;
operation = operationSegment.Operations.Single();
}
else if (segment is OperationImportSegment operationImportSegment)
{
segmentParameters = operationImportSegment.Parameters;
operation = (EdmOperation)operationImportSegment.OperationImports.Single().Operation;
}
else
{
throw new InvalidOperationException("Not supported segment type " + segment.GetType().Name);
}
foreach (OperationSegmentParameter segmentParameter in segmentParameters)
{
Object?value;
if (segmentParameter.Value is ConstantNode constantNode)
{
value = OeEdmClrHelper.GetValue(edmModel, constantNode.Value);
}
else if (segmentParameter.Value is ConvertNode convertNode)
{
value = OeEdmClrHelper.GetValue(edmModel, ((ConstantNode)convertNode.Source).Value);
}
else if (segmentParameter.Value is ParameterAliasNode parameterAliasNode)
{
value = OeEdmClrHelper.GetValue(edmModel, ((ConstantNode)parameterAliasNodes[parameterAliasNode.Alias]).Value);
}
else
{
value = OeEdmClrHelper.GetValue(edmModel, segmentParameter.Value);
}
parameters.Add(new KeyValuePair <String, Object?>(segmentParameter.Name, value));
}
if (parameters.Count == 0 && requestStream != null)
{
FillParameters(edmModel, parameters, requestStream, operation, contentType);
}
OrderParameters(operation.Parameters, parameters);
return(parameters);
}
private OeEntryFactory CreateEntryFactory(OeExpressionBuilder expressionBuilder, OePropertyAccessor[] skipTokenAccessors)
{
IEdmEntitySet?entitySet = OeParseNavigationSegment.GetEntitySet(ParseNavigationSegments);
if (entitySet == null)
{
entitySet = OeEdmClrHelper.GetEntitySet(EdmModel, EntitySetAdapter.EntitySetName);
}
return(expressionBuilder.CreateEntryFactory(entitySet, skipTokenAccessors));
}
private OeEntryFactory CreateEntryFactory(OeExpressionBuilder expressionBuilder)
{
IEdmEntitySet entitySet = EntitySet;
if (expressionBuilder.EntityType != EntitySetAdapter.EntityType)
{
entitySet = OeEdmClrHelper.GetEntitySet(EdmModel, expressionBuilder.EntityType);
}
return(expressionBuilder.CreateEntryFactory(entitySet));
}
public EntitySetConfiguration <TEntityType> EntitySet <TEntityType>(String entitySetName) where TEntityType : class
{
IEdmEntitySet entitySet = OeEdmClrHelper.GetEntitySet(EdmModel, entitySetName);
if (entitySet == null)
{
throw new InvalidOperationException("EntitySet " + entitySetName + " not found in EdmModel");
}
return(new EntitySetConfiguration <TEntityType>(this, entitySet));
}
