internal object ReadCollectionItem(IEdmTypeReference expectedItemType, CollectionWithoutExpectedTypeValidator collectionValidator)
{
if (!base.XmlReader.LocalNameEquals(base.ODataCollectionItemElementName))
{
throw new ODataException(Microsoft.Data.OData.Strings.ODataAtomCollectionDeserializer_WrongCollectionItemElementName(base.XmlReader.LocalName, base.XmlReader.ODataNamespace));
}
object obj2 = base.ReadNonEntityValue(expectedItemType, this.duplicatePropertyNamesChecker, collectionValidator, true, false);
base.XmlReader.Read();
return obj2;
}
internal void WriteCollectionValue(ODataCollectionValue collectionValue, IEdmTypeReference metadataTypeReference, bool isOpenPropertyType)
{
this.IncreaseRecursionDepth();
base.JsonWriter.StartObjectScope();
string typeName = collectionValue.TypeName;
IEdmCollectionTypeReference type = (IEdmCollectionTypeReference) WriterValidationUtils.ResolveTypeNameForWriting(base.Model, metadataTypeReference, ref typeName, EdmTypeKind.Collection, isOpenPropertyType);
string itemTypeNameFromCollection = null;
if (typeName != null)
{
itemTypeNameFromCollection = ValidationUtils.ValidateCollectionTypeName(typeName);
}
SerializationTypeNameAnnotation annotation = collectionValue.GetAnnotation<SerializationTypeNameAnnotation>();
if (annotation != null)
{
typeName = annotation.TypeName;
}
if (typeName != null)
{
base.JsonWriter.WriteName("__metadata");
base.JsonWriter.StartObjectScope();
base.JsonWriter.WriteName("type");
base.JsonWriter.WriteValue(typeName);
base.JsonWriter.EndObjectScope();
}
base.JsonWriter.WriteDataArrayName();
base.JsonWriter.StartArrayScope();
IEnumerable items = collectionValue.Items;
if (items != null)
{
IEdmTypeReference propertyTypeReference = (type == null) ? null : type.ElementType();
CollectionWithoutExpectedTypeValidator collectionValidator = new CollectionWithoutExpectedTypeValidator(itemTypeNameFromCollection);
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker = null;
foreach (object obj2 in items)
{
ValidationUtils.ValidateCollectionItem(obj2, false);
ODataComplexValue complexValue = obj2 as ODataComplexValue;
if (complexValue != null)
{
if (duplicatePropertyNamesChecker == null)
{
duplicatePropertyNamesChecker = base.CreateDuplicatePropertyNamesChecker();
}
this.WriteComplexValue(complexValue, propertyTypeReference, false, duplicatePropertyNamesChecker, collectionValidator);
duplicatePropertyNamesChecker.Clear();
}
else
{
this.WritePrimitiveValue(obj2, collectionValidator, propertyTypeReference);
}
}
}
base.JsonWriter.EndArrayScope();
base.JsonWriter.EndObjectScope();
this.DecreaseRecursionDepth();
}
protected ODataCollectionWriterCore(ODataOutputContext outputContext, IEdmTypeReference expectedItemType, IODataReaderWriterListener listener)
{
this.outputContext = outputContext;
this.expectedItemType = expectedItemType;
this.listener = listener;
this.scopes.Push(new Scope(CollectionWriterState.Start, null));
if (this.expectedItemType == null)
{
this.collectionValidator = new CollectionWithoutExpectedTypeValidator(null);
}
}
protected ODataCollectionWriterCore(ODataOutputContext outputContext, IEdmTypeReference expectedItemType, IODataReaderWriterListener listener)
{
this.outputContext = outputContext;
this.expectedItemType = expectedItemType;
this.listener = listener;
this.scopes.Push(new Scope(CollectionWriterState.Start, null));
if (this.expectedItemType == null)
{
this.collectionValidator = new CollectionWithoutExpectedTypeValidator(null);
}
}
protected ODataCollectionReaderCore(ODataInputContext inputContext, IEdmTypeReference expectedItemTypeReference, IODataReaderWriterListener listener)
{
this.inputContext = inputContext;
this.expectedItemTypeReference = expectedItemTypeReference;
if (this.expectedItemTypeReference == null)
{
this.collectionValidator = new CollectionWithoutExpectedTypeValidator(null);
}
this.listener = listener;
this.EnterScope(ODataCollectionReaderState.Start, null);
}
/// <summary>
/// Start writing a collection - implementation of the actual functionality.
/// </summary>
/// <param name="collectionStart">The <see cref="ODataCollectionStart"/> representing the collection.</param>
private void WriteStartImplementation(ODataCollectionStart collectionStart)
{
this.StartPayloadInStartState();
this.EnterScope(CollectionWriterState.Collection, collectionStart);
this.InterceptException(() =>
{
if (this.expectedItemType == null)
{
this.collectionValidator = new CollectionWithoutExpectedTypeValidator(/*expectedItemTypeName*/ null);
}
this.StartCollection(collectionStart);
});
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="outputContext">The output context to write to.</param>
/// <param name="expectedItemType">The type reference of the expected item type or null if no expected item type exists.</param>
/// <param name="listener">If not null, the writer will notify the implementer of the interface of relevant state changes in the writer.</param>
protected ODataCollectionWriterCore(ODataOutputContext outputContext, IEdmTypeReference expectedItemType, IODataReaderWriterListener listener)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(outputContext != null, "outputContext != null");
this.outputContext = outputContext;
this.expectedItemType = expectedItemType;
this.listener = listener;
this.scopes.Push(new Scope(CollectionWriterState.Start, null));
if (this.expectedItemType == null)
{
this.collectionValidator = new CollectionWithoutExpectedTypeValidator(/*expectedItemTypeName*/ null);
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="outputContext">The output context to write to.</param>
/// <param name="expectedItemType">The type reference of the expected item type or null if no expected item type exists.</param>
/// <param name="listener">If not null, the writer will notify the implementer of the interface of relevant state changes in the writer.</param>
protected ODataCollectionWriterCore(ODataOutputContext outputContext, IEdmTypeReference expectedItemType, IODataReaderWriterListener listener)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(outputContext != null, "outputContext != null");
this.outputContext = outputContext;
this.expectedItemType = expectedItemType;
this.listener = listener;
this.scopes.Push(new Scope(CollectionWriterState.Start, null));
if (this.expectedItemType == null)
{
this.collectionValidator = new CollectionWithoutExpectedTypeValidator(/*expectedItemTypeName*/ null);
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="inputContext">The input to read from.</param>
/// <param name="expectedItemTypeReference">The expected type reference for the items in the collection.</param>
/// <param name="listener">If not null, the reader will notify the implementer of the interface of relevant state changes in the reader.</param>
protected ODataCollectionReaderCore(
ODataInputContext inputContext,
IEdmTypeReference expectedItemTypeReference,
IODataReaderWriterListener listener)
{
this.inputContext = inputContext;
this.expectedItemTypeReference = expectedItemTypeReference;
if (this.expectedItemTypeReference == null)
{
// NOTE: collections cannot specify a type name for the collection itself, so always passing null.
this.collectionValidator = new CollectionWithoutExpectedTypeValidator(/*expectedItemTypeName*/ null);
}
this.listener = listener;
this.EnterScope(ODataCollectionReaderState.Start, null);
}
internal string GetValueTypeNameForWriting(
object value,
IEdmTypeReference typeReferenceFromValue,
SerializationTypeNameAnnotation typeNameAnnotation,
CollectionWithoutExpectedTypeValidator collectionValidator,
out string collectionItemTypeName)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(value != null, "value != null");
collectionItemTypeName = null;
// if no type name is specified we will use the type name inferred from metadata
string typeName = GetTypeNameFromValue(value);
if (typeName == null && typeReferenceFromValue != null)
{
typeName = typeReferenceFromValue.ODataFullName();
}
if (typeName != null)
{
// If the type is the same as the one specified by the parent collection, omit the type name, since it's not needed.
if (collectionValidator != null && string.CompareOrdinal(collectionValidator.ItemTypeNameFromCollection, typeName) == 0)
{
typeName = null;
}
// If value is a collection value, get the item type name.
if (typeName != null && value is ODataCollectionValue)
{
collectionItemTypeName = ValidationUtils.ValidateCollectionTypeName(typeName);
}
}
if (typeNameAnnotation != null)
{
// If the value of TypeName is null, we'll flow it through here, thereby instructing the caller to write no type name.
typeName = typeNameAnnotation.TypeName;
}
return(typeName);
}
/// <summary>
/// Write the items of a collection in ATOM format.
/// </summary>
/// <param name="collectionValue">The collection value to write.</param>
/// <param name="propertyTypeReference">The type reference of the collection (or null if not metadata is available).</param>
/// <param name="isOpenPropertyType">true if the type name belongs to an open property.</param>
/// <param name="isWritingCollection">true if we are writing a collection instead of an entry.</param>
private void WriteCollectionValue(
ODataCollectionValue collectionValue,
IEdmTypeReference propertyTypeReference,
bool isOpenPropertyType,
bool isWritingCollection)
{
Debug.Assert(collectionValue != null, "collectionValue != null");
this.IncreaseRecursionDepth();
string typeName = collectionValue.TypeName;
// resolve the type name to the type; if no type name is specified we will use the
// type inferred from metadata
IEdmCollectionTypeReference collectionTypeReference =
(IEdmCollectionTypeReference)WriterValidationUtils.ResolveTypeNameForWriting(this.Model, propertyTypeReference, ref typeName, EdmTypeKind.Collection, isOpenPropertyType);
string collectionItemTypeName = null;
if (typeName != null)
{
collectionItemTypeName = ValidationUtils.ValidateCollectionTypeName(typeName);
}
SerializationTypeNameAnnotation serializationTypeNameAnnotation = collectionValue.GetAnnotation<SerializationTypeNameAnnotation>();
if (serializationTypeNameAnnotation != null)
{
typeName = serializationTypeNameAnnotation.TypeName;
}
if (typeName != null)
{
this.WritePropertyTypeAttribute(typeName);
}
IEdmTypeReference expectedItemTypeReference = collectionTypeReference == null ? null : collectionTypeReference.ElementType();
CollectionWithoutExpectedTypeValidator collectionValidator = new CollectionWithoutExpectedTypeValidator(collectionItemTypeName);
IEnumerable items = collectionValue.Items;
if (items != null)
{
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker = null;
foreach (object item in items)
{
ValidationUtils.ValidateCollectionItem(item, false /* isStreamable */);
this.XmlWriter.WriteStartElement(AtomConstants.ODataNamespacePrefix, AtomConstants.ODataCollectionItemElementName, this.MessageWriterSettings.WriterBehavior.ODataNamespace);
ODataComplexValue complexValue = item as ODataComplexValue;
if (complexValue != null)
{
if (duplicatePropertyNamesChecker == null)
{
duplicatePropertyNamesChecker = this.CreateDuplicatePropertyNamesChecker();
}
this.WriteComplexValue(
complexValue,
expectedItemTypeReference,
false,
isWritingCollection,
null /* beforeValueAction */,
null /* afterValueAction */,
duplicatePropertyNamesChecker,
collectionValidator,
null /* epmValueCache */,
null /* epmSourcePathSegment */,
null /* projectedProperties */);
duplicatePropertyNamesChecker.Clear();
}
else
{
Debug.Assert(!(item is ODataCollectionValue), "!(item is ODataCollectionValue)");
Debug.Assert(!(item is ODataStreamReferenceValue), "!(item is ODataStreamReferenceValue)");
this.WritePrimitiveValue(item, collectionValidator, expectedItemTypeReference);
}
this.XmlWriter.WriteEndElement();
}
}
this.DecreaseRecursionDepth();
}
internal void WriteComplexValue(ODataComplexValue complexValue, IEdmTypeReference propertyTypeReference, bool isOpenPropertyType, DuplicatePropertyNamesChecker duplicatePropertyNamesChecker, CollectionWithoutExpectedTypeValidator collectionValidator)
{
this.IncreaseRecursionDepth();
base.JsonWriter.StartObjectScope();
string typeName = complexValue.TypeName;
if (collectionValidator != null)
{
collectionValidator.ValidateCollectionItem(typeName, EdmTypeKind.Complex);
}
IEdmComplexTypeReference type = WriterValidationUtils.ResolveTypeNameForWriting(base.Model, propertyTypeReference, ref typeName, EdmTypeKind.Complex, isOpenPropertyType).AsComplexOrNull();
if (((typeName != null) && (collectionValidator != null)) && (string.CompareOrdinal(collectionValidator.ItemTypeNameFromCollection, typeName) == 0))
{
typeName = null;
}
SerializationTypeNameAnnotation annotation = complexValue.GetAnnotation<SerializationTypeNameAnnotation>();
if (annotation != null)
{
typeName = annotation.TypeName;
}
if (typeName != null)
{
base.JsonWriter.WriteName("__metadata");
base.JsonWriter.StartObjectScope();
base.JsonWriter.WriteName("type");
base.JsonWriter.WriteValue(typeName);
base.JsonWriter.EndObjectScope();
}
this.WriteProperties((type == null) ? null : type.ComplexDefinition(), complexValue.Properties, true, duplicatePropertyNamesChecker, null);
base.JsonWriter.EndObjectScope();
this.DecreaseRecursionDepth();
}
private object ReadNonEntityValueImplementation(IEdmTypeReference expectedTypeReference, DuplicatePropertyNamesChecker duplicatePropertyNamesChecker, CollectionWithoutExpectedTypeValidator collectionValidator, bool validateNullValue, bool epmPresent)
{
string itemTypeNameFromCollection;
bool flag;
SerializationTypeNameAnnotation annotation;
EdmTypeKind kind2;
this.ReadNonEntityValueAttributes(out itemTypeNameFromCollection, out flag);
if (flag)
{
return this.ReadNullValue(expectedTypeReference, validateNullValue);
}
bool flag2 = false;
if ((collectionValidator != null) && (itemTypeNameFromCollection == null))
{
itemTypeNameFromCollection = collectionValidator.ItemTypeNameFromCollection;
flag2 = collectionValidator.ItemTypeKindFromCollection != EdmTypeKind.None;
}
IEdmTypeReference type = ReaderValidationUtils.ResolvePayloadTypeNameAndComputeTargetType(EdmTypeKind.None, edmStringType, expectedTypeReference, itemTypeNameFromCollection, base.Model, base.MessageReaderSettings, base.Version, new Func<EdmTypeKind>(this.GetNonEntityValueKind), out kind2, out annotation);
if (flag2)
{
annotation = new SerializationTypeNameAnnotation {
TypeName = null
};
}
if (collectionValidator != null)
{
collectionValidator.ValidateCollectionItem(itemTypeNameFromCollection, kind2);
}
switch (kind2)
{
case EdmTypeKind.Primitive:
return this.ReadPrimitiveValue(type.AsPrimitive());
case EdmTypeKind.Complex:
return this.ReadComplexValue((type == null) ? null : type.AsComplex(), itemTypeNameFromCollection, annotation, duplicatePropertyNamesChecker, epmPresent);
case EdmTypeKind.Collection:
{
IEdmCollectionTypeReference collectionTypeReference = ValidationUtils.ValidateCollectionType(type);
return this.ReadCollectionValue(collectionTypeReference, itemTypeNameFromCollection, annotation);
}
}
throw new ODataException(Microsoft.Data.OData.Strings.General_InternalError(InternalErrorCodes.ODataAtomPropertyAndValueDeserializer_ReadNonEntityValue));
}
internal void WritePrimitiveValue(object value, CollectionWithoutExpectedTypeValidator collectionValidator, IEdmTypeReference expectedTypeReference)
{
IEdmPrimitiveTypeReference primitiveTypeReference = EdmLibraryExtensions.GetPrimitiveTypeReference(value.GetType());
if (collectionValidator != null)
{
if (primitiveTypeReference == null)
{
throw new ODataException(Microsoft.Data.OData.Strings.ValidationUtils_UnsupportedPrimitiveType(value.GetType().FullName));
}
collectionValidator.ValidateCollectionItem(primitiveTypeReference.FullName(), EdmTypeKind.Primitive);
}
if (expectedTypeReference != null)
{
ValidationUtils.ValidateIsExpectedPrimitiveType(value, primitiveTypeReference, expectedTypeReference);
}
if ((primitiveTypeReference != null) && primitiveTypeReference.IsSpatial())
{
string typeName = primitiveTypeReference.FullName();
PrimitiveConverter.Instance.WriteJson(value, base.JsonWriter, typeName, base.Version);
}
else
{
base.JsonWriter.WritePrimitiveValue(value, base.Version);
}
}
private ODataCollectionValue ReadCollectionValue(IEdmCollectionTypeReference collectionTypeReference, string payloadTypeName, SerializationTypeNameAnnotation serializationTypeNameAnnotation)
{
this.IncreaseRecursionDepth();
ODataCollectionValue value2 = new ODataCollectionValue {
TypeName = (collectionTypeReference == null) ? payloadTypeName : collectionTypeReference.ODataFullName()
};
if (serializationTypeNameAnnotation != null)
{
value2.SetAnnotation<SerializationTypeNameAnnotation>(serializationTypeNameAnnotation);
}
base.XmlReader.MoveToElement();
List<object> sourceEnumerable = new List<object>();
if (!base.XmlReader.IsEmptyElement)
{
base.XmlReader.ReadStartElement();
IEdmTypeReference expectedTypeReference = (collectionTypeReference == null) ? null : collectionTypeReference.ElementType();
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker = base.CreateDuplicatePropertyNamesChecker();
CollectionWithoutExpectedTypeValidator collectionValidator = null;
if (collectionTypeReference == null)
{
string itemTypeNameFromCollection = (payloadTypeName == null) ? null : EdmLibraryExtensions.GetCollectionItemTypeName(payloadTypeName);
collectionValidator = new CollectionWithoutExpectedTypeValidator(itemTypeNameFromCollection);
}
do
{
switch (base.XmlReader.NodeType)
{
case XmlNodeType.Element:
if (base.XmlReader.NamespaceEquals(base.XmlReader.ODataNamespace))
{
if (!base.XmlReader.LocalNameEquals(this.ODataCollectionItemElementName))
{
throw new ODataException(Microsoft.Data.OData.Strings.ODataAtomPropertyAndValueDeserializer_InvalidCollectionElement(base.XmlReader.LocalName, base.XmlReader.ODataNamespace));
}
object item = this.ReadNonEntityValueImplementation(expectedTypeReference, duplicatePropertyNamesChecker, collectionValidator, true, false);
base.XmlReader.Read();
ValidationUtils.ValidateCollectionItem(item, false);
sourceEnumerable.Add(item);
}
else
{
base.XmlReader.Skip();
}
break;
case XmlNodeType.EndElement:
break;
default:
base.XmlReader.Skip();
break;
}
}
while (base.XmlReader.NodeType != XmlNodeType.EndElement);
}
value2.Items = new ReadOnlyEnumerable(sourceEnumerable);
this.DecreaseRecursionDepth();
return value2;
}
internal void WritePrimitiveValue(object value, CollectionWithoutExpectedTypeValidator collectionValidator, IEdmTypeReference expectedTypeReference)
{
IEdmPrimitiveTypeReference primitiveTypeReference = EdmLibraryExtensions.GetPrimitiveTypeReference(value.GetType());
if (primitiveTypeReference == null)
{
throw new ODataException(Microsoft.Data.OData.Strings.ValidationUtils_UnsupportedPrimitiveType(value.GetType().FullName));
}
string collectionItemTypeName = primitiveTypeReference.FullName();
if (collectionValidator != null)
{
collectionValidator.ValidateCollectionItem(collectionItemTypeName, EdmTypeKind.Primitive);
if (string.CompareOrdinal(collectionValidator.ItemTypeNameFromCollection, collectionItemTypeName) == 0)
{
collectionItemTypeName = null;
}
}
if (expectedTypeReference != null)
{
ValidationUtils.ValidateIsExpectedPrimitiveType(value, primitiveTypeReference, expectedTypeReference);
}
if ((collectionItemTypeName != null) && (collectionItemTypeName != "Edm.String"))
{
this.WritePropertyTypeAttribute(collectionItemTypeName);
}
AtomValueUtils.WritePrimitiveValue(base.XmlWriter, value);
}
internal bool WriteComplexValue(ODataComplexValue complexValue, IEdmTypeReference metadataTypeReference, bool isOpenPropertyType, bool isWritingCollection, Action beforeValueAction, Action afterValueAction, DuplicatePropertyNamesChecker duplicatePropertyNamesChecker, CollectionWithoutExpectedTypeValidator collectionValidator, EpmValueCache epmValueCache, EpmSourcePathSegment epmSourcePathSegment, ProjectedPropertiesAnnotation projectedProperties)
{
Action action2 = null;
string typeName = complexValue.TypeName;
if (collectionValidator != null)
{
collectionValidator.ValidateCollectionItem(typeName, EdmTypeKind.Complex);
}
this.IncreaseRecursionDepth();
IEdmComplexTypeReference reference = WriterValidationUtils.ResolveTypeNameForWriting(base.Model, metadataTypeReference, ref typeName, EdmTypeKind.Complex, isOpenPropertyType).AsComplexOrNull();
if (((typeName != null) && (collectionValidator != null)) && (string.CompareOrdinal(collectionValidator.ItemTypeNameFromCollection, typeName) == 0))
{
typeName = null;
}
SerializationTypeNameAnnotation annotation = complexValue.GetAnnotation<SerializationTypeNameAnnotation>();
if (annotation != null)
{
typeName = annotation.TypeName;
}
Action beforePropertiesAction = beforeValueAction;
if (typeName != null)
{
if (beforeValueAction != null)
{
if (action2 == null)
{
action2 = delegate {
beforeValueAction();
this.WritePropertyTypeAttribute(typeName);
};
}
beforePropertiesAction = action2;
}
else
{
this.WritePropertyTypeAttribute(typeName);
}
}
if (((base.MessageWriterSettings.WriterBehavior != null) && base.MessageWriterSettings.WriterBehavior.UseV1ProviderBehavior) && !object.ReferenceEquals(projectedProperties, ProjectedPropertiesAnnotation.EmptyProjectedPropertiesMarker))
{
IEdmComplexType definition = (IEdmComplexType) reference.Definition;
if (base.Model.EpmCachedKeepPrimitiveInContent(definition) == null)
{
List<string> keptInContentPropertyNames = null;
foreach (IEdmProperty property in from p in definition.Properties()
where p.Type.IsODataPrimitiveTypeKind()
select p)
{
EntityPropertyMappingAttribute entityPropertyMapping = EpmWriterUtils.GetEntityPropertyMapping(epmSourcePathSegment, property.Name);
if ((entityPropertyMapping != null) && entityPropertyMapping.KeepInContent)
{
if (keptInContentPropertyNames == null)
{
keptInContentPropertyNames = new List<string>();
}
keptInContentPropertyNames.Add(property.Name);
}
}
base.Model.SetAnnotationValue<CachedPrimitiveKeepInContentAnnotation>(definition, new CachedPrimitiveKeepInContentAnnotation(keptInContentPropertyNames));
}
}
bool flag = this.WriteProperties((reference == null) ? null : reference.ComplexDefinition(), EpmValueCache.GetComplexValueProperties(epmValueCache, complexValue, true), isWritingCollection, beforePropertiesAction, afterValueAction, duplicatePropertyNamesChecker, epmValueCache, epmSourcePathSegment, projectedProperties);
this.DecreaseRecursionDepth();
return flag;
}
/// <summary>
/// Read a collection from the reader.
/// </summary>
/// <param name="collectionTypeReference">The type of the collection to read (or null if no type is available).</param>
/// <param name="payloadTypeName">The name of the collection type specified in the payload.</param>
/// <param name="serializationTypeNameAnnotation">The serialization type name for the collection value (possibly null).</param>
/// <returns>The value read from the payload.</returns>
/// <remarks>
/// Pre-Condition: XmlNodeType.Element - the element to read the value for.
/// XmlNodeType.Attribute - an attribute on the element to read the value for.
/// Post-Condition: XmlNodeType.Element - the element was empty.
/// XmlNodeType.EndElement - the element had some value.
///
/// Note that this method will not read null values, those should be handled by the caller already.
/// </remarks>
private ODataCollectionValue ReadCollectionValue(
IEdmCollectionTypeReference collectionTypeReference,
string payloadTypeName,
SerializationTypeNameAnnotation serializationTypeNameAnnotation)
{
this.AssertXmlCondition(XmlNodeType.Element, XmlNodeType.Attribute);
Debug.Assert(
collectionTypeReference == null || collectionTypeReference.IsNonEntityODataCollectionTypeKind(),
"If the metadata is specified it must denote a collection for this method to work.");
this.IncreaseRecursionDepth();
ODataCollectionValue collectionValue = new ODataCollectionValue();
// If we have a metadata type for the collection, use that type name
// otherwise use the type name from the payload (if there was any).
collectionValue.TypeName = collectionTypeReference == null ? payloadTypeName : collectionTypeReference.ODataFullName();
if (serializationTypeNameAnnotation != null)
{
collectionValue.SetAnnotation(serializationTypeNameAnnotation);
}
// Move to the element (so that if we were on an attribute we can test the element for being empty)
this.XmlReader.MoveToElement();
List<object> items = new List<object>();
// Empty collections are valid - they have no items
if (!this.XmlReader.IsEmptyElement)
{
// Read over the collection element to its first child node (or end-element)
this.XmlReader.ReadStartElement();
IEdmTypeReference itemTypeReference = collectionTypeReference == null ? null : collectionTypeReference.ElementType();
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker = this.CreateDuplicatePropertyNamesChecker();
CollectionWithoutExpectedTypeValidator collectionValidator = null;
if (collectionTypeReference == null)
{
// Parse the type name from the payload (if any), extract the item type name and construct a collection validator
string itemTypeName = payloadTypeName == null ? null : EdmLibraryExtensions.GetCollectionItemTypeName(payloadTypeName);
collectionValidator = new CollectionWithoutExpectedTypeValidator(itemTypeName);
}
do
{
switch (this.XmlReader.NodeType)
{
case XmlNodeType.Element:
if (this.XmlReader.NamespaceEquals(this.XmlReader.ODataNamespace))
{
if (!this.XmlReader.LocalNameEquals(this.ODataCollectionItemElementName))
{
throw new ODataException(o.Strings.ODataAtomPropertyAndValueDeserializer_InvalidCollectionElement(this.XmlReader.LocalName, this.XmlReader.ODataNamespace));
}
// We don't support EPM for collections so it is fine to say that EPM is not present
object itemValue = this.ReadNonEntityValueImplementation(
itemTypeReference,
duplicatePropertyNamesChecker,
collectionValidator,
/*validateNullValue*/ true,
/*epmPresent*/ false);
// read over the end tag of the element or the start tag if the element was empty.
this.XmlReader.Read();
// Validate the item (for example that it's not null)
ValidationUtils.ValidateCollectionItem(itemValue, false /* isStreamable */);
// Note that the ReadNonEntityValue already validated that the actual type of the value matches
// the expected type (the itemType).
items.Add(itemValue);
}
else
{
this.XmlReader.Skip();
}
break;
case XmlNodeType.EndElement:
// End of the collection.
break;
default:
// Non-element so for example a text node, just ignore
this.XmlReader.Skip();
break;
}
}
while (this.XmlReader.NodeType != XmlNodeType.EndElement);
}
collectionValue.Items = new ReadOnlyEnumerable(items);
this.AssertXmlCondition(true, XmlNodeType.EndElement);
Debug.Assert(collectionValue != null, "The method should never return null since it doesn't handle null values.");
this.DecreaseRecursionDepth();
return collectionValue;
}
private object ReadNonEntityValueImplementation(IEdmTypeReference expectedTypeReference, DuplicatePropertyNamesChecker duplicatePropertyNamesChecker, CollectionWithoutExpectedTypeValidator collectionValidator, bool validateNullValue)
{
object obj2;
SerializationTypeNameAnnotation annotation;
EdmTypeKind kind;
JsonNodeType nodeType = base.JsonReader.NodeType;
if (nodeType == JsonNodeType.StartArray)
{
throw new ODataException(Microsoft.Data.OData.Strings.ODataJsonPropertyAndValueDeserializer_CannotReadPropertyValue(nodeType));
}
if (this.TryReadNullValue(expectedTypeReference, validateNullValue))
{
return null;
}
string payloadTypeName = this.FindTypeNameInPayload();
IEdmTypeReference type = ReaderValidationUtils.ResolvePayloadTypeNameAndComputeTargetType(EdmTypeKind.None, null, expectedTypeReference, payloadTypeName, base.Model, base.MessageReaderSettings, base.Version, new Func<EdmTypeKind>(this.GetNonEntityValueKind), out kind, out annotation);
switch (kind)
{
case EdmTypeKind.Primitive:
{
IEdmPrimitiveTypeReference reference2 = (type == null) ? null : type.AsPrimitive();
if ((payloadTypeName != null) && !reference2.IsSpatial())
{
throw new ODataException(Microsoft.Data.OData.Strings.ODataJsonPropertyAndValueDeserializer_InvalidPrimitiveTypeName(payloadTypeName));
}
obj2 = this.ReadPrimitiveValueImplementation(reference2, validateNullValue);
break;
}
case EdmTypeKind.Complex:
obj2 = this.ReadComplexValueImplementation((type == null) ? null : type.AsComplex(), payloadTypeName, annotation, duplicatePropertyNamesChecker);
break;
case EdmTypeKind.Collection:
{
IEdmCollectionTypeReference collectionValueTypeReference = ValidationUtils.ValidateCollectionType(type);
obj2 = this.ReadCollectionValueImplementation(collectionValueTypeReference, payloadTypeName, annotation);
break;
}
default:
throw new ODataException(Microsoft.Data.OData.Strings.General_InternalError(InternalErrorCodes.ODataJsonPropertyAndValueDeserializer_ReadPropertyValue));
}
if (collectionValidator != null)
{
string collectionItemTypeName = ODataJsonReaderUtils.GetPayloadTypeName(obj2);
collectionValidator.ValidateCollectionItem(collectionItemTypeName, kind);
}
return obj2;
}
/// <summary>
/// Writes out the value of a collection property.
/// </summary>
/// <param name="collectionValue">The collection value to write.</param>
/// <param name="metadataTypeReference">The metadata type reference for the collection.</param>
/// <param name="isOpenPropertyType">true if the type name belongs to an open property.</param>
/// <remarks>The current recursion depth is measured by the number of complex and collection values between
/// this one and the top-level payload, not including this one.</remarks>
internal void WriteCollectionValue(
ODataCollectionValue collectionValue,
IEdmTypeReference metadataTypeReference,
bool isOpenPropertyType)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(collectionValue != null, "collectionValue != null");
this.IncreaseRecursionDepth();
// Start the object scope which will represent the entire CollectionValue instance
this.JsonWriter.StartObjectScope();
// "__metadata": { "type": "typename" }
// If the CollectionValue has type information write out the metadata and the type in it.
string typeName = collectionValue.TypeName;
// resolve the type name to the type; if no type name is specified we will use the
// type inferred from metadata
IEdmCollectionTypeReference collectionTypeReference =
(IEdmCollectionTypeReference)WriterValidationUtils.ResolveTypeNameForWriting(this.Model, metadataTypeReference, ref typeName, EdmTypeKind.Collection, isOpenPropertyType);
string collectionItemTypeName = null;
if (typeName != null)
{
collectionItemTypeName = ValidationUtils.ValidateCollectionTypeName(typeName);
}
SerializationTypeNameAnnotation serializationTypeNameAnnotation = collectionValue.GetAnnotation<SerializationTypeNameAnnotation>();
if (serializationTypeNameAnnotation != null)
{
typeName = serializationTypeNameAnnotation.TypeName;
}
if (typeName != null)
{
// Write the __metadata object
this.JsonWriter.WriteName(JsonConstants.ODataMetadataName);
this.JsonWriter.StartObjectScope();
// "type": "typename"
this.JsonWriter.WriteName(JsonConstants.ODataMetadataTypeName);
this.JsonWriter.WriteValue(typeName);
// End the __metadata
this.JsonWriter.EndObjectScope();
}
// "results": [
// This represents the array of items in the CollectionValue
this.JsonWriter.WriteDataArrayName();
this.JsonWriter.StartArrayScope();
// Iterate through the CollectionValue items and write them out (treat null Items as an empty enumeration)
IEnumerable items = collectionValue.Items;
if (items != null)
{
IEdmTypeReference expectedItemTypeReference = collectionTypeReference == null ? null : collectionTypeReference.ElementType();
CollectionWithoutExpectedTypeValidator collectionValidator = new CollectionWithoutExpectedTypeValidator(collectionItemTypeName);
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker = null;
foreach (object item in items)
{
ValidationUtils.ValidateCollectionItem(item, false /* isStreamable */);
ODataComplexValue itemAsComplexValue = item as ODataComplexValue;
if (itemAsComplexValue != null)
{
if (duplicatePropertyNamesChecker == null)
{
duplicatePropertyNamesChecker = this.CreateDuplicatePropertyNamesChecker();
}
this.WriteComplexValue(
itemAsComplexValue,
expectedItemTypeReference,
false,
duplicatePropertyNamesChecker,
collectionValidator);
duplicatePropertyNamesChecker.Clear();
}
else
{
Debug.Assert(!(item is ODataCollectionValue), "!(item is ODataCollectionValue)");
Debug.Assert(!(item is ODataStreamReferenceValue), "!(item is ODataStreamReferenceValue)");
this.WritePrimitiveValue(item, collectionValidator, expectedItemTypeReference);
}
}
}
// End the array scope which holds the items
this.JsonWriter.EndArrayScope();
// End the object scope which holds the entire collection
this.JsonWriter.EndObjectScope();
this.DecreaseRecursionDepth();
}
internal bool WriteComplexValue(
ODataComplexValue complexValue,
IEdmTypeReference metadataTypeReference,
bool isOpenPropertyType,
bool isWritingCollection,
Action beforeValueAction,
Action afterValueAction,
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker,
CollectionWithoutExpectedTypeValidator collectionValidator,
EpmValueCache epmValueCache,
EpmSourcePathSegment epmSourcePathSegment,
ProjectedPropertiesAnnotation projectedProperties)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(complexValue != null, "complexValue != null");
string typeName = complexValue.TypeName;
if (collectionValidator != null)
{
collectionValidator.ValidateCollectionItem(typeName, EdmTypeKind.Complex);
}
this.IncreaseRecursionDepth();
// resolve the type name to the type; if no type name is specified we will use the
// type inferred from metadata
IEdmComplexTypeReference complexTypeReference =
WriterValidationUtils.ResolveTypeNameForWriting(this.Model, metadataTypeReference, ref typeName, EdmTypeKind.Complex, isOpenPropertyType).AsComplexOrNull();
// If the type is the same as the one specified by the parent collection, omit the type name, since it's not needed.
if (typeName != null && collectionValidator != null)
{
string expectedItemTypeName = collectionValidator.ItemTypeNameFromCollection;
if (string.CompareOrdinal(expectedItemTypeName, typeName) == 0)
{
typeName = null;
}
}
SerializationTypeNameAnnotation serializationTypeNameAnnotation = complexValue.GetAnnotation<SerializationTypeNameAnnotation>();
if (serializationTypeNameAnnotation != null)
{
typeName = serializationTypeNameAnnotation.TypeName;
}
Action beforeValueCallbackWithTypeName = beforeValueAction;
if (typeName != null)
{
// The beforeValueAction (if specified) will write the actual property element start.
// So if we are to write the type attribute, we must postpone that after the start element was written.
// And so we chain the existing action with our type attribute writing and use that
// as the before action instead.
if (beforeValueAction != null)
{
beforeValueCallbackWithTypeName = () =>
{
beforeValueAction();
this.WritePropertyTypeAttribute(typeName);
};
}
else
{
this.WritePropertyTypeAttribute(typeName);
}
}
// NOTE: see the comments on ODataWriterBehavior.UseV1ProviderBehavior for more information
// NOTE: We have to check for ProjectedPropertiesAnnotation.Empty here to avoid filling the cache for
// complex values we are writing only to ensure we don't have nested EPM-mapped null values
// that will end up in the content eventually.
if (this.MessageWriterSettings.WriterBehavior != null &&
this.MessageWriterSettings.WriterBehavior.UseV1ProviderBehavior &&
!object.ReferenceEquals(projectedProperties, ProjectedPropertiesAnnotation.EmptyProjectedPropertiesMarker))
{
IEdmComplexType complexType = (IEdmComplexType)complexTypeReference.Definition;
CachedPrimitiveKeepInContentAnnotation keepInContentCache = this.Model.EpmCachedKeepPrimitiveInContent(complexType);
if (keepInContentCache == null)
{
// we are about to write the first value of the given type; compute the keep-in-content information for the primitive properties of this type.
List<string> keepInContentPrimitiveProperties = null;
// initialize the cache with all primitive properties
foreach (IEdmProperty edmProperty in complexType.Properties().Where(p => p.Type.IsODataPrimitiveTypeKind()))
{
// figure out the keep-in-content value
EntityPropertyMappingAttribute entityPropertyMapping = EpmWriterUtils.GetEntityPropertyMapping(epmSourcePathSegment, edmProperty.Name);
if (entityPropertyMapping != null && entityPropertyMapping.KeepInContent)
{
if (keepInContentPrimitiveProperties == null)
{
keepInContentPrimitiveProperties = new List<string>();
}
keepInContentPrimitiveProperties.Add(edmProperty.Name);
}
}
this.Model.SetAnnotationValue<CachedPrimitiveKeepInContentAnnotation>(complexType, new CachedPrimitiveKeepInContentAnnotation(keepInContentPrimitiveProperties));
}
}
bool propertyWritten = this.WriteProperties(
complexTypeReference == null ? null : complexTypeReference.ComplexDefinition(),
EpmValueCache.GetComplexValueProperties(epmValueCache, complexValue, true),
isWritingCollection,
beforeValueCallbackWithTypeName,
afterValueAction,
duplicatePropertyNamesChecker,
epmValueCache,
epmSourcePathSegment,
projectedProperties);
this.DecreaseRecursionDepth();
return propertyWritten;
}
/// <summary>
/// Writes out the value of a complex property.
/// </summary>
/// <param name="complexValue">The complex value to write.</param>
/// <param name="propertyTypeReference">The metadata type for the complex value.</param>
/// <param name="isOpenPropertyType">true if the type name belongs to an open property.</param>
/// <param name="duplicatePropertyNamesChecker">The checker instance for duplicate property names.</param>
/// <param name="collectionValidator">The collection validator instance to validate the type names and type kinds of collection items; null if no validation is needed.</param>
/// <remarks>The current recursion depth should be a value, measured by the number of complex and collection values between
/// this complex value and the top-level payload, not including this one.</remarks>
internal void WriteComplexValue(
ODataComplexValue complexValue,
IEdmTypeReference propertyTypeReference,
bool isOpenPropertyType,
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker,
CollectionWithoutExpectedTypeValidator collectionValidator)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(complexValue != null, "complexValue != null");
this.IncreaseRecursionDepth();
// Start the object scope which will represent the entire complex instance
this.JsonWriter.StartObjectScope();
// Write the "__metadata" : { "type": "typename" }
// But only if we actually have a typename to write, otherwise we need the __metadata to be omitted entirely
string typeName = complexValue.TypeName;
if (collectionValidator != null)
{
collectionValidator.ValidateCollectionItem(typeName, EdmTypeKind.Complex);
}
// resolve the type name to the type; if no type name is specified we will use the
// type inferred from metadata
IEdmComplexTypeReference complexValueTypeReference =
WriterValidationUtils.ResolveTypeNameForWriting(this.Model, propertyTypeReference, ref typeName, EdmTypeKind.Complex, isOpenPropertyType).AsComplexOrNull();
// If the type is the same as the one specified by the parent collection, omit the type name, since it's not needed.
if (typeName != null && collectionValidator != null)
{
string expectedItemTypeName = collectionValidator.ItemTypeNameFromCollection;
if (string.CompareOrdinal(expectedItemTypeName, typeName) == 0)
{
typeName = null;
}
}
SerializationTypeNameAnnotation serializationTypeNameAnnotation = complexValue.GetAnnotation<SerializationTypeNameAnnotation>();
if (serializationTypeNameAnnotation != null)
{
typeName = serializationTypeNameAnnotation.TypeName;
}
if (typeName != null)
{
// Write the __metadata object
this.JsonWriter.WriteName(JsonConstants.ODataMetadataName);
this.JsonWriter.StartObjectScope();
// "type": "typename"
this.JsonWriter.WriteName(JsonConstants.ODataMetadataTypeName);
this.JsonWriter.WriteValue(typeName);
// End the __metadata
this.JsonWriter.EndObjectScope();
}
// Write the properties of the complex value as usual. Note we do not allow complex types to contain named stream properties.
this.WriteProperties(
complexValueTypeReference == null ? null : complexValueTypeReference.ComplexDefinition(),
complexValue.Properties,
true /* isComplexValue */,
duplicatePropertyNamesChecker,
null /*projectedProperties */);
// End the object scope which represents the complex instance
this.JsonWriter.EndObjectScope();
this.DecreaseRecursionDepth();
}
/// <summary>
/// Writes a primitive value.
/// Uses a registered primitive type converter to write the value if one is registered for the type, otherwise directly writes the value.
/// </summary>
/// <param name="value">The value to write.</param>
/// <param name="collectionValidator">The collection validator instance.</param>
/// <param name="expectedTypeReference">The expected type reference of the primitive value.</param>
internal void WritePrimitiveValue(
object value,
CollectionWithoutExpectedTypeValidator collectionValidator,
IEdmTypeReference expectedTypeReference)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(value != null, "value != null");
IEdmPrimitiveTypeReference actualTypeReference = EdmLibraryExtensions.GetPrimitiveTypeReference(value.GetType());
if (collectionValidator != null)
{
if (actualTypeReference == null)
{
throw new ODataException(o.Strings.ValidationUtils_UnsupportedPrimitiveType(value.GetType().FullName));
}
collectionValidator.ValidateCollectionItem(actualTypeReference.FullName(), EdmTypeKind.Primitive);
}
if (expectedTypeReference != null)
{
ValidationUtils.ValidateIsExpectedPrimitiveType(value, actualTypeReference, expectedTypeReference);
}
if (actualTypeReference != null && actualTypeReference.IsSpatial())
{
// For spatial types, we will always write the type name. This is consistent with complex types.
string typeName = actualTypeReference.FullName();
PrimitiveConverter.Instance.WriteJson(value, this.JsonWriter, typeName, this.Version);
}
else
{
this.JsonWriter.WritePrimitiveValue(value, this.Version);
}
}
internal object ReadCollectionItem(IEdmTypeReference expectedItemTypeReference, CollectionWithoutExpectedTypeValidator collectionValidator)
{
return base.ReadNonEntityValue(expectedItemTypeReference, this.duplicatePropertyNamesChecker, collectionValidator, true);
}
/// <summary>
/// Reads a primitive value, complex value or collection.
/// </summary>
/// <param name="expectedValueTypeReference">The expected type reference of the property value.</param>
/// <param name="duplicatePropertyNamesChecker">The duplicate property names checker to use - if null the method should create a new one if necessary.</param>
/// <param name="collectionValidator">The collection validator instance if no expected item type has been specified; otherwise null.</param>
/// <param name="validateNullValue">true to validate null values; otherwise false.</param>
/// <returns>The value of the property read.</returns>
/// <remarks>
/// Pre-Condition: JsonNodeType.PrimitiveValue - the value of the property is a primitive value
/// JsonNodeType.StartObject - the value of the property is an object
/// JsonNodeType.StartArray - the value of the property is an array - method will fail in this case.
/// Post-Condition: almost anything - the node after the property value.
///
/// Returns the value of the property read, which can be one of:
/// - null
/// - primitive value
/// - <see cref="ODataComplexValue"/>
/// - <see cref="ODataCollectionValue"/>
/// </remarks>
internal object ReadNonEntityValue(
IEdmTypeReference expectedValueTypeReference,
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker,
CollectionWithoutExpectedTypeValidator collectionValidator,
bool validateNullValue)
{
DebugUtils.CheckNoExternalCallers();
this.AssertRecursionDepthIsZero();
object nonEntityValue = this.ReadNonEntityValueImplementation(expectedValueTypeReference, duplicatePropertyNamesChecker, collectionValidator, validateNullValue);
this.AssertRecursionDepthIsZero();
return nonEntityValue;
}
/// <summary>
/// Reads the primitive, complex or collection value.
/// </summary>
/// <param name="expectedTypeReference">The expected type reference of the value.</param>
/// <param name="duplicatePropertyNamesChecker">The duplicate property names checker to use (cached), or null if new one should be created.</param>
/// <param name="collectionValidator">The collection validator instance if no expected item type has been specified; otherwise null.</param>
/// <param name="validateNullValue">true to validate a null value; otherwise false.</param>
/// <param name="epmPresent">Whether any EPM mappings exist.</param>
/// <returns>The value read (null, primitive CLR value, ODataComplexValue or ODataCollectionValue).</returns>
/// <remarks>
/// Pre-Condition: XmlNodeType.Element - The XML element containing the value to read (also the attributes will be read from it)
/// Post-Condition: XmlNodeType.EndElement - The end tag of the element.
/// XmlNodeType.Element - The empty element node.
/// </remarks>
private object ReadNonEntityValueImplementation(
IEdmTypeReference expectedTypeReference,
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker,
CollectionWithoutExpectedTypeValidator collectionValidator,
bool validateNullValue,
bool epmPresent)
{
this.AssertXmlCondition(XmlNodeType.Element);
Debug.Assert(
expectedTypeReference == null || !expectedTypeReference.IsODataEntityTypeKind(),
"Only primitive, complex or collection types can be read by this method.");
Debug.Assert(
expectedTypeReference == null || collectionValidator == null,
"If an expected value type reference is specified, no collection validator must be provided.");
this.XmlReader.AssertNotBuffering();
// Read the attributes looking for m:type and m:null
string payloadTypeName;
bool isNull;
this.ReadNonEntityValueAttributes(out payloadTypeName, out isNull);
object result;
if (isNull)
{
result = this.ReadNullValue(expectedTypeReference, validateNullValue);
}
else
{
// If we could derive the item type name from the collection's type name and no type name was specified in the payload
// fill it in now.
EdmTypeKind payloadTypeKind;
bool derivedItemTypeNameFromCollectionTypeName = false;
if (collectionValidator != null && payloadTypeName == null)
{
payloadTypeName = collectionValidator.ItemTypeNameFromCollection;
payloadTypeKind = collectionValidator.ItemTypeKindFromCollection;
derivedItemTypeNameFromCollectionTypeName = payloadTypeKind != EdmTypeKind.None;
}
// Resolve the payload type name and compute the target type kind and target type reference.
SerializationTypeNameAnnotation serializationTypeNameAnnotation;
EdmTypeKind targetTypeKind;
IEdmTypeReference targetTypeReference = ReaderValidationUtils.ResolvePayloadTypeNameAndComputeTargetType(
EdmTypeKind.None,
/*defaultPrimitivePayloadType*/ edmStringType,
expectedTypeReference,
payloadTypeName,
this.Model,
this.MessageReaderSettings,
this.Version,
this.GetNonEntityValueKind,
out targetTypeKind,
out serializationTypeNameAnnotation);
if (derivedItemTypeNameFromCollectionTypeName)
{
Debug.Assert(
serializationTypeNameAnnotation == null,
"If we derived the item type name from the collection type name we must not have created a serialization type name annotation.");
serializationTypeNameAnnotation = new SerializationTypeNameAnnotation { TypeName = null };
}
// If we have no expected type make sure the collection items are of the same kind and specify the same name.
if (collectionValidator != null)
{
Debug.Assert(expectedTypeReference == null, "If a collection validator is specified there must not be an expected value type reference.");
collectionValidator.ValidateCollectionItem(payloadTypeName, targetTypeKind);
}
switch (targetTypeKind)
{
case EdmTypeKind.Primitive:
Debug.Assert(targetTypeReference != null && targetTypeReference.IsODataPrimitiveTypeKind(), "Expected an OData primitive type.");
result = this.ReadPrimitiveValue(targetTypeReference.AsPrimitive());
break;
case EdmTypeKind.Complex:
Debug.Assert(targetTypeReference == null || targetTypeReference.IsComplex(), "Expected a complex type.");
result = this.ReadComplexValue(
targetTypeReference == null ? null : targetTypeReference.AsComplex(),
payloadTypeName,
serializationTypeNameAnnotation,
duplicatePropertyNamesChecker,
epmPresent);
break;
case EdmTypeKind.Collection:
IEdmCollectionTypeReference collectionTypeReference = ValidationUtils.ValidateCollectionType(targetTypeReference);
result = this.ReadCollectionValue(
collectionTypeReference,
payloadTypeName,
serializationTypeNameAnnotation);
break;
default:
throw new ODataException(o.Strings.General_InternalError(InternalErrorCodes.ODataAtomPropertyAndValueDeserializer_ReadNonEntityValue));
}
}
this.AssertXmlCondition(true, XmlNodeType.EndElement);
this.XmlReader.AssertNotBuffering();
return result;
}
/// <summary>
/// Reads a primitive, complex or collection value.
/// </summary>
/// <param name="expectedTypeReference">The expected type reference of the property value.</param>
/// <param name="duplicatePropertyNamesChecker">The duplicate property names checker to use - if null the method should create a new one if necessary.</param>
/// <param name="collectionValidator">The collection validator instance if no expected item type has been specified; otherwise null.</param>
/// <param name="validateNullValue">true to validate null values; otherwise false.</param>
/// <returns>The value of the property read.</returns>
/// <remarks>
/// Pre-Condition: JsonNodeType.PrimitiveValue - the value of the property is a primitive value
/// JsonNodeType.StartObject - the value of the property is an object
/// JsonNodeType.StartArray - the value of the property is an array - method will fail in this case.
/// Post-Condition: almost anything - the node after the property value.
///
/// Returns the value of the property read, which can be one of:
/// - null
/// - primitive value
/// - <see cref="ODataComplexValue"/>
/// - <see cref="ODataCollectionValue"/>
/// </remarks>
private object ReadNonEntityValueImplementation(
IEdmTypeReference expectedTypeReference,
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker,
CollectionWithoutExpectedTypeValidator collectionValidator,
bool validateNullValue)
{
// TODO: can we ever get a non-null collection validator here? That would mean that we don't have
// an expected type; double-check
DebugUtils.CheckNoExternalCallers();
Debug.Assert(
this.JsonReader.NodeType == JsonNodeType.PrimitiveValue || this.JsonReader.NodeType == JsonNodeType.StartObject || this.JsonReader.NodeType == JsonNodeType.StartArray,
"Pre-Condition: expected JsonNodeType.PrimitiveValue or JsonNodeType.StartObject or JsonNodeType.StartArray");
Debug.Assert(
expectedTypeReference == null || !expectedTypeReference.IsODataEntityTypeKind(),
"Only primitive, complex or collection types can be read by this method.");
Debug.Assert(
expectedTypeReference == null || collectionValidator == null,
"If an expected value type reference is specified, no collection validator must be provided.");
this.JsonReader.AssertNotBuffering();
// Property values can be only primitives or objects. No property can have a JSON array value.
JsonNodeType nodeType = this.JsonReader.NodeType;
if (nodeType == JsonNodeType.StartArray)
{
throw new ODataException(o.Strings.ODataJsonPropertyAndValueDeserializer_CannotReadPropertyValue(nodeType));
}
// Try to read a null value
object result;
if (this.TryReadNullValue(expectedTypeReference, validateNullValue))
{
result = null;
}
else
{
// Read the payload type name
string payloadTypeName = this.FindTypeNameInPayload();
SerializationTypeNameAnnotation serializationTypeNameAnnotation;
EdmTypeKind targetTypeKind;
IEdmTypeReference targetTypeReference = ReaderValidationUtils.ResolvePayloadTypeNameAndComputeTargetType(
EdmTypeKind.None,
/*defaultPrimitivePayloadType*/ null,
expectedTypeReference,
payloadTypeName,
this.Model,
this.MessageReaderSettings,
this.Version,
this.GetNonEntityValueKind,
out targetTypeKind,
out serializationTypeNameAnnotation);
switch (targetTypeKind)
{
case EdmTypeKind.Primitive:
Debug.Assert(targetTypeReference == null || targetTypeReference.IsODataPrimitiveTypeKind(), "Expected an OData primitive type.");
IEdmPrimitiveTypeReference primitiveTargetTypeReference = targetTypeReference == null ? null : targetTypeReference.AsPrimitive();
if (payloadTypeName != null && !primitiveTargetTypeReference.IsSpatial())
{
throw new ODataException(o.Strings.ODataJsonPropertyAndValueDeserializer_InvalidPrimitiveTypeName(payloadTypeName));
}
result = this.ReadPrimitiveValueImplementation(
primitiveTargetTypeReference,
validateNullValue);
break;
case EdmTypeKind.Complex:
Debug.Assert(targetTypeReference == null || targetTypeReference.IsComplex(), "Expected a complex type.");
result = this.ReadComplexValueImplementation(
targetTypeReference == null ? null : targetTypeReference.AsComplex(),
payloadTypeName,
serializationTypeNameAnnotation,
duplicatePropertyNamesChecker);
break;
case EdmTypeKind.Collection:
Debug.Assert(this.Version >= ODataVersion.V3, "Type resolution should already fail if we would decide to read a collection value in V1/V2 payload.");
IEdmCollectionTypeReference collectionTypeReference = ValidationUtils.ValidateCollectionType(targetTypeReference);
result = this.ReadCollectionValueImplementation(
collectionTypeReference,
payloadTypeName,
serializationTypeNameAnnotation);
break;
default:
throw new ODataException(o.Strings.General_InternalError(InternalErrorCodes.ODataJsonPropertyAndValueDeserializer_ReadPropertyValue));
}
// If we have no expected type make sure the collection items are of the same kind and specify the same name.
if (collectionValidator != null)
{
string payloadTypeNameFromResult = ODataJsonReaderUtils.GetPayloadTypeName(result);
Debug.Assert(expectedTypeReference == null, "If a collection validator is specified there must not be an expected value type reference.");
collectionValidator.ValidateCollectionItem(payloadTypeNameFromResult, targetTypeKind);
}
}
this.JsonReader.AssertNotBuffering();
return result;
}
/// <summary>
/// Reads an item in the collection.
/// </summary>
/// <param name="expectedItemTypeReference">The expected type of the item to read.</param>
/// <param name="collectionValidator">The collection validator instance if no expected item type has been specified; otherwise null.</param>
/// <returns>The value of the collection item that was read; this can be an ODataComplexValue, a primitive value or 'null'.</returns>
/// <remarks>
/// Pre-Condition: The first node of the item in the collection
/// NOTE: this method will throw if the node is not
/// JsonNodeType.StartObject: for a complex item
/// JsonNodeType.PrimitiveValue: for a primitive item
/// Post-Condition: The reader is positioned on the first node of the next item or an EndArray node if there are no more items in the collection
/// </remarks>
internal object ReadCollectionItem(IEdmTypeReference expectedItemTypeReference, CollectionWithoutExpectedTypeValidator collectionValidator)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(
expectedItemTypeReference == null ||
expectedItemTypeReference.IsODataPrimitiveTypeKind() ||
expectedItemTypeReference.IsODataComplexTypeKind(),
"If an expected type is specified, it must be a primitive or complex type.");
this.JsonReader.AssertNotBuffering();
object item = this.ReadNonEntityValue(
expectedItemTypeReference,
this.duplicatePropertyNamesChecker,
collectionValidator,
/*validateNullValue*/ true);
this.JsonReader.AssertNotBuffering();
return item;
}
internal object ReadNonEntityValue(IEdmTypeReference expectedValueTypeReference, DuplicatePropertyNamesChecker duplicatePropertyNamesChecker, CollectionWithoutExpectedTypeValidator collectionValidator, bool validateNullValue)
{
return this.ReadNonEntityValueImplementation(expectedValueTypeReference, duplicatePropertyNamesChecker, collectionValidator, validateNullValue);
}
/// <summary>
/// Reads an item in the collection.
/// </summary>
/// <param name="expectedItemType">The expected type of the item to read.</param>
/// <param name="collectionValidator">The collection validator instance if no expected item type has been specified; otherwise null.</param>
/// <returns>The value of the collection item that was read; this can be an ODataComplexValue, a primitive value or 'null'.</returns>
/// <remarks>
/// Pre-Condition: XmlNodeType.Element - The start element node of the item in the collection.
/// Post-Condition: Any - The next node after the end tag of the item.
/// </remarks>
internal object ReadCollectionItem(IEdmTypeReference expectedItemType, CollectionWithoutExpectedTypeValidator collectionValidator)
{
DebugUtils.CheckNoExternalCallers();
this.XmlReader.AssertNotBuffering();
this.AssertXmlCondition(XmlNodeType.Element);
// the caller should guarantee that we are reading elements in the OData namespace or the custom namespace specified through the reader settings.
Debug.Assert(this.XmlReader.NamespaceEquals(this.XmlReader.ODataNamespace), "The 'element' node should be in the OData Namespace or in the user specified Namespace");
// make sure that the item is named as 'element'.
if (!this.XmlReader.LocalNameEquals(this.ODataCollectionItemElementName))
{
throw new ODataException(o.Strings.ODataAtomCollectionDeserializer_WrongCollectionItemElementName(this.XmlReader.LocalName, this.XmlReader.ODataNamespace));
}
// We don't support EPM for collections so it is fine to say that EPM is not present
object item = this.ReadNonEntityValue(expectedItemType, this.duplicatePropertyNamesChecker, collectionValidator, /*validateNullValue*/ true, /* epmPresent */ false);
// read over the end tag of the element or the start tag if the element was empty.
this.XmlReader.Read();
this.XmlReader.AssertNotBuffering();
return item;
}
/// <summary>
/// Writes a primitive value.
/// </summary>
/// <param name="value">The value to write.</param>
/// <param name="collectionValidator">The collection validator instance.</param>
/// <param name="expectedTypeReference">The expected type of the primitive value.</param>
internal void WritePrimitiveValue(
object value,
CollectionWithoutExpectedTypeValidator collectionValidator,
IEdmTypeReference expectedTypeReference)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(value != null, "value != null");
IEdmPrimitiveTypeReference primitiveTypeReference = EdmLibraryExtensions.GetPrimitiveTypeReference(value.GetType());
if (primitiveTypeReference == null)
{
throw new ODataException(o.Strings.ValidationUtils_UnsupportedPrimitiveType(value.GetType().FullName));
}
string typeName = primitiveTypeReference.FullName();
if (collectionValidator != null)
{
collectionValidator.ValidateCollectionItem(typeName, EdmTypeKind.Primitive);
if (string.CompareOrdinal(collectionValidator.ItemTypeNameFromCollection, typeName) == 0)
{
typeName = null;
}
}
if (expectedTypeReference != null)
{
ValidationUtils.ValidateIsExpectedPrimitiveType(value, primitiveTypeReference, expectedTypeReference);
}
if (typeName != null && typeName != Metadata.EdmConstants.EdmStringTypeName)
{
this.WritePropertyTypeAttribute(typeName);
}
AtomValueUtils.WritePrimitiveValue(this.XmlWriter, value);
}
private void WriteCollectionValue(ODataCollectionValue collectionValue, IEdmTypeReference propertyTypeReference, bool isOpenPropertyType, bool isWritingCollection)
{
this.IncreaseRecursionDepth();
string typeName = collectionValue.TypeName;
IEdmCollectionTypeReference type = (IEdmCollectionTypeReference) WriterValidationUtils.ResolveTypeNameForWriting(base.Model, propertyTypeReference, ref typeName, EdmTypeKind.Collection, isOpenPropertyType);
string itemTypeNameFromCollection = null;
if (typeName != null)
{
itemTypeNameFromCollection = ValidationUtils.ValidateCollectionTypeName(typeName);
}
SerializationTypeNameAnnotation annotation = collectionValue.GetAnnotation<SerializationTypeNameAnnotation>();
if (annotation != null)
{
typeName = annotation.TypeName;
}
if (typeName != null)
{
this.WritePropertyTypeAttribute(typeName);
}
IEdmTypeReference metadataTypeReference = (type == null) ? null : type.ElementType();
CollectionWithoutExpectedTypeValidator collectionValidator = new CollectionWithoutExpectedTypeValidator(itemTypeNameFromCollection);
IEnumerable items = collectionValue.Items;
if (items != null)
{
DuplicatePropertyNamesChecker duplicatePropertyNamesChecker = null;
foreach (object obj2 in items)
{
ValidationUtils.ValidateCollectionItem(obj2, false);
base.XmlWriter.WriteStartElement("d", "element", base.MessageWriterSettings.WriterBehavior.ODataNamespace);
ODataComplexValue complexValue = obj2 as ODataComplexValue;
if (complexValue != null)
{
if (duplicatePropertyNamesChecker == null)
{
duplicatePropertyNamesChecker = base.CreateDuplicatePropertyNamesChecker();
}
this.WriteComplexValue(complexValue, metadataTypeReference, false, isWritingCollection, null, null, duplicatePropertyNamesChecker, collectionValidator, null, null, null);
duplicatePropertyNamesChecker.Clear();
}
else
{
this.WritePrimitiveValue(obj2, collectionValidator, metadataTypeReference);
}
base.XmlWriter.WriteEndElement();
}
}
this.DecreaseRecursionDepth();
}
