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);
}
/// <summary>
/// Writes an Xml element with the specified primitive value as content.
/// </summary>
/// <param name="writer">The Xml writer to write to.</param>
/// <param name="prefix">The prefix for the element's namespace.</param>
/// <param name="localName">The local name of the element.</param>
/// <param name="ns">The namespace of the element.</param>
/// <param name="textConstruct">The <see cref="AtomTextConstruct"/> value to be used as element content.</param>
internal static void WriteTextConstruct(XmlWriter writer, string prefix, string localName, string ns, AtomTextConstruct textConstruct)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(writer != null, "writer != null");
Debug.Assert(prefix != null, "prefix != null");
Debug.Assert(!string.IsNullOrEmpty(localName), "!string.IsNullOrEmpty(localName)");
Debug.Assert(!string.IsNullOrEmpty(ns), "!string.IsNullOrEmpty(ns)");
writer.WriteStartElement(prefix, localName, ns);
if (textConstruct != null)
{
AtomTextConstructKind textKind = textConstruct.Kind;
writer.WriteAttributeString(AtomConstants.AtomTypeAttributeName, AtomValueUtils.ToString(textConstruct.Kind));
string textValue = textConstruct.Text ?? string.Empty;
if (textKind == AtomTextConstructKind.Xhtml)
{
writer.WriteRaw(textValue);
}
else
{
writer.WriteString(textValue);
}
}
writer.WriteEndElement();
}
private ODataEntityReferenceLinks ReadLinksElement()
{
ODataEntityReferenceLinks links = new ODataEntityReferenceLinks();
List <ODataEntityReferenceLink> sourceList = new List <ODataEntityReferenceLink>();
DuplicateEntityReferenceLinksElementBitMask none = DuplicateEntityReferenceLinksElementBitMask.None;
if (base.XmlReader.IsEmptyElement)
{
goto Label_018C;
}
base.XmlReader.Read();
Label_002A:
switch (base.XmlReader.NodeType)
{
case XmlNodeType.Element:
if ((base.XmlReader.NamespaceEquals(base.XmlReader.ODataMetadataNamespace) && base.XmlReader.LocalNameEquals(this.ODataCountElementName)) && (base.Version >= ODataVersion.V2))
{
VerifyEntityReferenceLinksElementNotFound(ref none, DuplicateEntityReferenceLinksElementBitMask.Count, base.XmlReader.ODataMetadataNamespace, "count");
long num = (long)AtomValueUtils.ReadPrimitiveValue(base.XmlReader, EdmCoreModel.Instance.GetInt64(false));
links.Count = new long?(num);
base.XmlReader.Read();
goto Label_017A;
}
if (base.XmlReader.NamespaceEquals(base.XmlReader.ODataNamespace))
{
if (base.XmlReader.LocalNameEquals(this.ODataUriElementName))
{
ODataEntityReferenceLink item = this.ReadUriElement();
sourceList.Add(item);
goto Label_017A;
}
if (base.XmlReader.LocalNameEquals(this.ODataNextElementName) && (base.Version >= ODataVersion.V2))
{
VerifyEntityReferenceLinksElementNotFound(ref none, DuplicateEntityReferenceLinksElementBitMask.NextLink, base.XmlReader.ODataNamespace, "next");
Uri xmlBaseUri = base.XmlReader.XmlBaseUri;
string uriFromPayload = base.XmlReader.ReadElementValue();
links.NextPageLink = base.ProcessUriFromPayload(uriFromPayload, xmlBaseUri);
goto Label_017A;
}
}
break;
case XmlNodeType.EndElement:
goto Label_017A;
}
base.XmlReader.Skip();
Label_017A:
if (base.XmlReader.NodeType != XmlNodeType.EndElement)
{
goto Label_002A;
}
Label_018C:
base.XmlReader.Read();
links.Links = new ReadOnlyEnumerable <ODataEntityReferenceLink>(sourceList);
return(links);
}
/// <summary>
/// Given a property value returns the text value to be used in EPM.
/// </summary>
/// <param name="propertyValue">The value of the property.</param>
/// <returns>The text representation of the value, or the method throws if the text representation was not possible to obtain.</returns>
internal static string GetPropertyValueAsText(object propertyValue)
{
DebugUtils.CheckNoExternalCallers();
if (propertyValue == null)
{
return(null);
}
return(AtomValueUtils.ConvertPrimitiveToString(propertyValue));
}
/// <summary>
/// Read an enumeration value from the reader.
/// </summary>
/// <param name="actualValueTypeReference">The thpe of the value to read.</param>
/// <returns>An ODataEnumValue with the value read from the payload.</returns>
private ODataEnumValue ReadEnumValue(IEdmEnumTypeReference actualValueTypeReference)
{
Debug.Assert(actualValueTypeReference != null, "actualValueTypeReference != null");
Debug.Assert(actualValueTypeReference.TypeKind() == EdmTypeKind.Enum, "Only Enum values can be read by this method.");
this.AssertXmlCondition(XmlNodeType.Element, XmlNodeType.Attribute);
ODataEnumValue result = AtomValueUtils.ReadEnumValue(this.XmlReader, actualValueTypeReference);
this.AssertXmlCondition(true, XmlNodeType.EndElement);
Debug.Assert(result != null, "The method should never return null since it doesn't handle null values.");
return(result);
}
internal static string GetPropertyValueAsText(object propertyValue)
{
string str;
if (propertyValue == null)
{
return(null);
}
if (!AtomValueUtils.TryConvertPrimitiveToString(propertyValue, out str))
{
throw new ODataException(Microsoft.Data.OData.Strings.AtomValueUtils_CannotConvertValueToAtomPrimitive(propertyValue.GetType().FullName));
}
return(str);
}
/// <summary>
/// Given a property value returns the text value to be used in EPM.
/// </summary>
/// <param name="propertyValue">The value of the property.</param>
/// <returns>The text representation of the value, or the method throws if the text representation was not possible to obtain.</returns>
internal static string GetPropertyValueAsText(object propertyValue)
{
DebugUtils.CheckNoExternalCallers();
if (propertyValue == null)
{
return(null);
}
string textPropertyValue;
if (!AtomValueUtils.TryConvertPrimitiveToString(propertyValue, out textPropertyValue))
{
throw new ODataException(Strings.AtomValueUtils_CannotConvertValueToAtomPrimitive(propertyValue.GetType().FullName));
}
return(textPropertyValue);
}
/// <summary>
/// Writes a primitive value.
/// </summary>
/// <param name="writer">The <see cref="XmlWriter"/> to write to.</param>
/// <param name="value">The value to write.</param>
/// <param name="expectedType">The expected resource type of the primitive value.</param>
internal static void WritePrimitiveValue(XmlWriter writer, object value, ResourceType expectedType)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(value != null, "value != null");
string typeName;
if (!MetadataUtils.TryGetPrimitiveTypeName(value, out typeName))
{
throw new ODataException(Strings.ODataWriter_UnsupportedPrimitiveType(value.GetType().FullName));
}
if (typeName != EdmConstants.EdmStringTypeName)
{
WritePropertyTypeAttribute(writer, typeName);
}
AtomValueUtils.WritePrimitiveValue(writer, value, expectedType);
}
/// <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);
}
/// <summary>
/// Writes the value of a primitive instance annotation.
/// </summary>
/// <param name="primitiveValue">The primitive value to write.</param>
/// <param name="expectedTypeReference">The expected type of the annotation from the metadata.</param>
private void WritePrimitiveInstanceAnnotationValue(ODataPrimitiveValue primitiveValue, IEdmTypeReference expectedTypeReference)
{
object clrValue = primitiveValue.Value;
IEdmPrimitiveTypeReference primitiveTypeReference = EdmLibraryExtensions.GetPrimitiveTypeReference(clrValue.GetType());
string attributeValueNotationName = AtomInstanceAnnotation.LookupAttributeValueNotationNameByEdmTypeKind(primitiveTypeReference.PrimitiveKind());
// Some primitive values can be specified more concisely via an attribute rather than in the content of the xml element. This is called "attribute value notation".
// If we're writing a type that supports this, then we always prefer attribute value notation over writing the value in the element content.
if (attributeValueNotationName != null)
{
if (expectedTypeReference != null)
{
ValidationUtils.ValidateIsExpectedPrimitiveType(primitiveValue.Value, primitiveTypeReference, expectedTypeReference);
}
this.XmlWriter.WriteAttributeString(attributeValueNotationName, AtomValueUtils.ConvertPrimitiveToString(clrValue));
}
else
{
this.WritePrimitiveValue(clrValue, /*collectionValidator*/ null, expectedTypeReference, primitiveValue.GetAnnotation <SerializationTypeNameAnnotation>());
}
}
/// <summary>
/// Writes an enumeration 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 enumeration value.</param>
/// <param name="typeNameAnnotation">The optional type name annotation provided by the user on the OM for this enumeration value. The annotation value will override whatever type name is being written.</param>
internal void WriteEnumValue(
ODataEnumValue value,
CollectionWithoutExpectedTypeValidator collectionValidator,
IEdmTypeReference expectedTypeReference,
SerializationTypeNameAnnotation typeNameAnnotation)
{
Debug.Assert(value != null, "value != null");
// write type name without validation:
string collectionItemTypeName;
string typeName = this.AtomOutputContext.TypeNameOracle.GetValueTypeNameForWriting(value, expectedTypeReference, typeNameAnnotation, collectionValidator, out collectionItemTypeName);
Debug.Assert(collectionItemTypeName == null, "collectionItemTypeName == null");
if (typeName != null)
{
Debug.Assert(typeName != EdmConstants.EdmStringTypeName, "Enum typeName != EdmConstants.StringTypeName");
this.WritePropertyTypeAttribute(typeName);
}
// write string value without validation:
AtomValueUtils.WritePrimitiveValue(this.XmlWriter, value.Value);
}
/// <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>
/// <param name="typeNameAnnotation">The optional type name annotation provided by the user on the OM for this primitive value. The annotation value will override whatever type name is being written.</param>
internal void WritePrimitiveValue(
object value,
CollectionWithoutExpectedTypeValidator collectionValidator,
IEdmTypeReference expectedTypeReference,
SerializationTypeNameAnnotation typeNameAnnotation)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(value != null, "value != null");
IEdmPrimitiveTypeReference primitiveTypeReference = EdmLibraryExtensions.GetPrimitiveTypeReference(value.GetType());
if (primitiveTypeReference == null)
{
throw new ODataException(ODataErrorStrings.ValidationUtils_UnsupportedPrimitiveType(value.GetType().FullName));
}
if (collectionValidator != null)
{
collectionValidator.ValidateCollectionItem(primitiveTypeReference.FullName(), EdmTypeKind.Primitive);
}
if (expectedTypeReference != null)
{
ValidationUtils.ValidateIsExpectedPrimitiveType(value, primitiveTypeReference, expectedTypeReference);
}
string collectionItemTypeName;
string typeName = this.AtomOutputContext.TypeNameOracle.GetValueTypeNameForWriting(value, primitiveTypeReference, typeNameAnnotation, collectionValidator, out collectionItemTypeName);
Debug.Assert(collectionItemTypeName == null, "collectionItemTypeName == null");
if (typeName != null && typeName != EdmConstants.EdmStringTypeName)
{
this.WritePropertyTypeAttribute(typeName);
}
AtomValueUtils.WritePrimitiveValue(this.XmlWriter, value);
}
/// <summary>
/// Reads an annotation's value from the annotation value notation specified on the current element.
/// </summary>
/// <param name="expectedTypeReference">The expected type reference of the vocabulary term from the metadata.</param>
/// <param name="attributeValueNotationTypeReference">The type reference indicated by the name of the attribute used in attribute value notation.
/// For example, if the attribute was called "string", this will be a reference to the string type.</param>
/// <param name="attributeValueNotationAttributeName">The name of the attribute used by attribute avalue notation.</param>
/// <param name="attributeValueNotationAttributeValue">The value of the attribute used by attribute value notation.</param>
/// <param name="typeAttributeValue">The value of the "m:type" attribute on the annotation element.</param>
/// <param name="positionedOnEmptyElement">true if the annotation element is empty, false otherwise.</param>
/// <param name="model">The edm model instance.</param>
/// <param name="messageReaderSettings">The message reader settings instance.</param>
/// <param name="version">The payload version to read.</param>
/// <returns>The primitive value represented on this element via attribute value notation.</returns>
private static ODataPrimitiveValue GetValueFromAttributeValueNotation(
IEdmTypeReference expectedTypeReference,
IEdmPrimitiveTypeReference attributeValueNotationTypeReference,
string attributeValueNotationAttributeName,
string attributeValueNotationAttributeValue,
string typeAttributeValue,
bool positionedOnEmptyElement,
IEdmModel model,
ODataMessageReaderSettings messageReaderSettings,
ODataVersion version)
{
Debug.Assert(attributeValueNotationTypeReference != null, "attributeValueNotationTypeReference != null");
if (!positionedOnEmptyElement)
{
// If there is content in the body of the element, throw since it's ambiguous whether we should use the value from the attribute or the element content.
throw new ODataException(ODataErrorStrings.AtomInstanceAnnotation_AttributeValueNotationUsedOnNonEmptyElement(attributeValueNotationAttributeName));
}
// If both m:type is present and attribute value notation is being used, they must match.
// For example, if m:type is "Edm.Int32", but the "string" attribute is also present, we should throw.
if (typeAttributeValue != null && !string.Equals(attributeValueNotationTypeReference.Definition.ODataFullName(), typeAttributeValue, StringComparison.Ordinal))
{
throw new ODataException(ODataErrorStrings.AtomInstanceAnnotation_AttributeValueNotationUsedWithIncompatibleType(typeAttributeValue, attributeValueNotationAttributeName));
}
IEdmTypeReference targetTypeReference = ReaderValidationUtils.ResolveAndValidatePrimitiveTargetType(
expectedTypeReference,
EdmTypeKind.Primitive,
attributeValueNotationTypeReference.Definition,
attributeValueNotationTypeReference.ODataFullName(),
attributeValueNotationTypeReference.Definition,
model,
messageReaderSettings,
version);
return(new ODataPrimitiveValue(AtomValueUtils.ConvertStringToPrimitive(attributeValueNotationAttributeValue, targetTypeReference.AsPrimitive())));
}
internal void WriteTextConstruct(string prefix, string localName, string ns, AtomTextConstruct textConstruct)
{
base.XmlWriter.WriteStartElement(prefix, localName, ns);
if (textConstruct != null)
{
AtomTextConstructKind kind = textConstruct.Kind;
base.XmlWriter.WriteAttributeString("type", AtomValueUtils.ToString(textConstruct.Kind));
string text = textConstruct.Text;
if (text == null)
{
text = string.Empty;
}
if (kind == AtomTextConstructKind.Xhtml)
{
ODataAtomWriterUtils.WriteRaw(base.XmlWriter, text);
}
else
{
ODataAtomWriterUtils.WriteString(base.XmlWriter, text);
}
}
base.XmlWriter.WriteEndElement();
}
private void SetEpmValueForSegment(EntityPropertyMappingInfo epmInfo, int propertyValuePathIndex, IEdmStructuredTypeReference segmentStructuralTypeReference, List <ODataProperty> existingProperties, object propertyValue)
{
string propertyName = epmInfo.PropertyValuePath[propertyValuePathIndex].PropertyName;
if (!epmInfo.Attribute.KeepInContent)
{
IEdmTypeReference type;
ODataProperty property = existingProperties.FirstOrDefault <ODataProperty>(p => string.CompareOrdinal(p.Name, propertyName) == 0);
ODataComplexValue value2 = null;
if (property != null)
{
value2 = property.Value as ODataComplexValue;
if (value2 == null)
{
return;
}
}
IEdmProperty property2 = segmentStructuralTypeReference.FindProperty(propertyName);
if ((property2 == null) && (propertyValuePathIndex != (epmInfo.PropertyValuePath.Length - 1)))
{
throw new ODataException(Microsoft.Data.OData.Strings.EpmReader_OpenComplexOrCollectionEpmProperty(epmInfo.Attribute.SourcePath));
}
if ((property2 == null) || (this.MessageReaderSettings.DisablePrimitiveTypeConversion && property2.Type.IsODataPrimitiveTypeKind()))
{
type = EdmCoreModel.Instance.GetString(true);
}
else
{
type = property2.Type;
}
switch (type.TypeKind())
{
case EdmTypeKind.Primitive:
object obj2;
if (type.IsStream())
{
throw new ODataException(Microsoft.Data.OData.Strings.General_InternalError(InternalErrorCodes.EpmReader_SetEpmValueForSegment_StreamProperty));
}
if (propertyValue == null)
{
ReaderValidationUtils.ValidateNullValue(this.atomInputContext.Model, type, this.atomInputContext.MessageReaderSettings, true, this.atomInputContext.Version);
obj2 = null;
}
else
{
obj2 = AtomValueUtils.ConvertStringToPrimitive((string)propertyValue, type.AsPrimitive());
}
this.AddEpmPropertyValue(existingProperties, propertyName, obj2, segmentStructuralTypeReference.IsODataEntityTypeKind());
return;
case EdmTypeKind.Complex:
{
if (value2 == null)
{
value2 = new ODataComplexValue {
TypeName = type.ODataFullName(),
Properties = new ReadOnlyEnumerable <ODataProperty>()
};
this.AddEpmPropertyValue(existingProperties, propertyName, value2, segmentStructuralTypeReference.IsODataEntityTypeKind());
}
IEdmComplexTypeReference reference2 = type.AsComplex();
this.SetEpmValueForSegment(epmInfo, propertyValuePathIndex + 1, reference2, ReaderUtils.GetPropertiesList(value2.Properties), propertyValue);
return;
}
case EdmTypeKind.Collection:
{
ODataCollectionValue value4 = new ODataCollectionValue {
TypeName = type.ODataFullName(),
Items = new ReadOnlyEnumerable((List <object>)propertyValue)
};
this.AddEpmPropertyValue(existingProperties, propertyName, value4, segmentStructuralTypeReference.IsODataEntityTypeKind());
return;
}
}
throw new ODataException(Microsoft.Data.OData.Strings.General_InternalError(InternalErrorCodes.EpmReader_SetEpmValueForSegment_TypeKind));
}
}
private object ReadPrimitiveValue(IEdmPrimitiveTypeReference actualValueTypeReference)
{
return(AtomValueUtils.ReadPrimitiveValue(base.XmlReader, actualValueTypeReference));
}
/// <summary>
/// Writes an Xml element with the specified primitive value as content.
/// </summary>
/// <param name="prefix">The prefix for the element's namespace.</param>
/// <param name="localName">The local name of the element.</param>
/// <param name="ns">The namespace of the element.</param>
/// <param name="textConstruct">The <see cref="AtomTextConstruct"/> value to be used as element content.</param>
internal void WriteTextConstruct(string prefix, string localName, string ns, AtomTextConstruct textConstruct)
{
Debug.Assert(prefix != null, "prefix != null");
Debug.Assert(!string.IsNullOrEmpty(localName), "!string.IsNullOrEmpty(localName)");
Debug.Assert(!string.IsNullOrEmpty(ns), "!string.IsNullOrEmpty(ns)");
this.XmlWriter.WriteStartElement(prefix, localName, ns);
if (textConstruct != null)
{
AtomTextConstructKind textKind = textConstruct.Kind;
this.XmlWriter.WriteAttributeString(AtomConstants.AtomTypeAttributeName, AtomValueUtils.ToString(textConstruct.Kind));
string textValue = textConstruct.Text;
if (textValue == null)
{
textValue = String.Empty;
}
if (textKind == AtomTextConstructKind.Xhtml)
{
ODataAtomWriterUtils.WriteRaw(this.XmlWriter, textValue);
}
else
{
ODataAtomWriterUtils.WriteString(this.XmlWriter, textValue);
}
}
this.XmlWriter.WriteEndElement();
}
private void SetEpmValueForSegment(
EntityPropertyMappingInfo epmInfo,
int propertyValuePathIndex,
IEdmStructuredTypeReference segmentStructuralTypeReference,
List <ODataProperty> existingProperties,
object propertyValue)
{
Debug.Assert(epmInfo != null, "epmInfo != null");
Debug.Assert(propertyValuePathIndex < epmInfo.PropertyValuePath.Length, "The propertyValuePathIndex is out of bounds.");
Debug.Assert(existingProperties != null, "existingProperties != null");
string propertyName = epmInfo.PropertyValuePath[propertyValuePathIndex].PropertyName;
// Do not set out-of-content values if the EPM is defined as KeepInContent=true.
if (epmInfo.Attribute.KeepInContent)
{
return;
}
// Try to find the property in the existing properties
// If the property value is atomic from point of view of EPM (non-streaming collection or primitive) then if it already exists
// it must have been in-content, and thus we leave it as is (note that two EPMs can't map to the same property, we verify that upfront).
// If the property value is non-atomic, then it is a complex value, we might want to merge the new value comming from EPM with it.
ODataProperty existingProperty = existingProperties.FirstOrDefault(p => string.CompareOrdinal(p.Name, propertyName) == 0);
ODataComplexValue existingComplexValue = null;
if (existingProperty != null)
{
// In case the property exists and it's a complex value we will try to merge.
// Note that if the property is supposed to be complex, but it already has a null value, then the null wins.
// Since in-content null complex value wins over any EPM complex value.
existingComplexValue = existingProperty.Value as ODataComplexValue;
if (existingComplexValue == null)
{
return;
}
}
IEdmProperty propertyMetadata = segmentStructuralTypeReference.FindProperty(propertyName);
Debug.Assert(propertyMetadata != null || segmentStructuralTypeReference.IsOpen(), "We should have verified that if the property is not declared the type must be open.");
if (propertyMetadata == null && propertyValuePathIndex != epmInfo.PropertyValuePath.Length - 1)
{
throw new ODataException(o.Strings.EpmReader_OpenComplexOrCollectionEpmProperty(epmInfo.Attribute.SourcePath));
}
// Open properties in EPM are by default of type Edm.String - there's no way to specify a typename in EPM
// consumer is free to do the conversion later on if it needs to.
// Note that this effectively means that ODataMessageReaderSettings.DisablePrimitiveTypeConversion is as if it's turned on for open EPM properties.
IEdmTypeReference propertyType;
if (propertyMetadata == null ||
(this.MessageReaderSettings.DisablePrimitiveTypeConversion && propertyMetadata.Type.IsODataPrimitiveTypeKind()))
{
propertyType = EdmCoreModel.Instance.GetString(/*nullable*/ true);
}
else
{
propertyType = propertyMetadata.Type;
}
// NOTE: WCF DS Server only applies the values when
// - It's an open property
// - It's not a key property
// - It's a key property and it's a POST operation
// ODataLib here will always set the property though.
switch (propertyType.TypeKind())
{
case EdmTypeKind.Primitive:
{
if (propertyType.IsStream())
{
throw new ODataException(o.Strings.General_InternalError(InternalErrorCodes.EpmReader_SetEpmValueForSegment_StreamProperty));
}
object primitiveValue;
if (propertyValue == null)
{
ReaderValidationUtils.ValidateNullValue(this.atomInputContext.Model, propertyType, this.atomInputContext.MessageReaderSettings, /*validateNullValue*/ true, this.atomInputContext.Version);
primitiveValue = null;
}
else
{
// Convert the value to the desired target type
primitiveValue = AtomValueUtils.ConvertStringToPrimitive((string)propertyValue, propertyType.AsPrimitive());
}
this.AddEpmPropertyValue(existingProperties, propertyName, primitiveValue, segmentStructuralTypeReference.IsODataEntityTypeKind());
}
break;
case EdmTypeKind.Complex:
// Note: Unlike WCF DS we don't have a preexisting instance to override (since complex values are atomic, so we should not updated them)
// In our case the complex value either doesn't exist yet on the entry being reported (easy, create it)
// or it exists, but then it was created during reading of previous normal or EPM properties for this entry. It never exists before
// we ever get to see the entity. So in our case we will never recreate the complex value, we always start with new one
// and update it with new properties as they come. (Next time we will start over with a new complex value.)
Debug.Assert(
existingComplexValue == null || (existingProperty != null && existingProperty.Value == existingComplexValue),
"If we have existing complex value, we must have an existing property as well.");
Debug.Assert(
epmInfo.PropertyValuePath.Length > propertyValuePathIndex + 1,
"Complex value can not be a leaf segment in the source property path. We should have failed constructing the EPM trees for it.");
if (existingComplexValue == null)
{
Debug.Assert(existingProperty == null, "If we don't have an existing complex value, then we must not have an existing property at all.");
// Create a new complex value and set its type name to the type name of the property type (in case of EPM we never have type name from the payload)
existingComplexValue = new ODataComplexValue
{
TypeName = propertyType.ODataFullName(),
Properties = new ReadOnlyEnumerable <ODataProperty>()
};
this.AddEpmPropertyValue(existingProperties, propertyName, existingComplexValue, segmentStructuralTypeReference.IsODataEntityTypeKind());
}
// Get the properties list of the complex value and recursively set the next EPM segment value to it.
// Note that on inner complex value we don't need to check for duplicate properties
// because EPM will never add a property which already exists (see the start of this method).
IEdmComplexTypeReference complexPropertyTypeReference = propertyType.AsComplex();
Debug.Assert(complexPropertyTypeReference != null, "complexPropertyTypeReference != null");
this.SetEpmValueForSegment(
epmInfo,
propertyValuePathIndex + 1,
complexPropertyTypeReference,
ReaderUtils.GetPropertiesList(existingComplexValue.Properties),
propertyValue);
break;
case EdmTypeKind.Collection:
Debug.Assert(propertyType.IsNonEntityODataCollectionTypeKind(), "Collection types in EPM must be atomic.");
// In this case the property value is the internal list of items.
// Create a new collection value and set the list as the list of items on it.
ODataCollectionValue collectionValue = new ODataCollectionValue
{
TypeName = propertyType.ODataFullName(),
Items = new ReadOnlyEnumerable((List <object>)propertyValue)
};
this.AddEpmPropertyValue(existingProperties, propertyName, collectionValue, segmentStructuralTypeReference.IsODataEntityTypeKind());
break;
default:
throw new ODataException(o.Strings.General_InternalError(InternalErrorCodes.EpmReader_SetEpmValueForSegment_TypeKind));
}
}
/// <summary>
/// Write the items in a MultiValue in ATOM format.
/// </summary>
/// <param name="writer">The <see cref="XmlWriter"/> to write to.</param>
/// <param name="metadata">The metadata provider to use or null if no metadata is available.</param>
/// <param name="multiValue">The MultiValue to write.</param>
/// <param name="resourcePropertyType">The resource type of the multi value (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>
/// <param name="version">The protocol version used for writing.</param>
/// <param name="epmValueCache">Cache of values used in EPM so that we avoid multiple enumerations of properties/items. (can be null)</param>
/// <param name="epmSourcePathSegment">The EPM source path segment which points to the multivalue property we're writing. (can be null)</param>
private static void WriteMultiValue(
XmlWriter writer,
DataServiceMetadataProviderWrapper metadata,
ODataMultiValue multiValue,
ResourceType resourcePropertyType,
bool isOpenPropertyType,
bool isWritingCollection,
ODataVersion version,
EpmValueCache epmValueCache,
EpmSourcePathSegment epmSourcePathSegment)
{
Debug.Assert(multiValue != null, "multiValue != null");
string typeName = multiValue.TypeName;
// resolve the type name to the resource type; if no type name is specified we will use the
// type inferred from metadata
MultiValueResourceType multiValueType = (MultiValueResourceType)MetadataUtils.ResolveTypeName(metadata, resourcePropertyType, ref typeName, ResourceTypeKind.MultiValue, isOpenPropertyType);
if (typeName != null)
{
WritePropertyTypeAttribute(writer, typeName);
}
ResourceType expectedItemType = multiValueType == null ? null : multiValueType.ItemType;
IEnumerable items = EpmValueCache.GetMultiValueItems(epmValueCache, epmSourcePathSegment, multiValue, true);
if (items != null)
{
foreach (object itemValue in items)
{
object item;
EpmMultiValueItemCache epmItemCache = itemValue as EpmMultiValueItemCache;
if (epmItemCache != null)
{
item = epmItemCache.ItemValue;
}
else
{
item = itemValue;
}
ValidationUtils.ValidateMultiValueItem(item);
writer.WriteStartElement(AtomConstants.ODataNamespacePrefix, AtomConstants.ODataMultiValueItemElementName, AtomConstants.ODataNamespace);
ODataComplexValue complexValue = item as ODataComplexValue;
if (complexValue != null)
{
WriteComplexValue(writer, metadata, complexValue, expectedItemType, false, isWritingCollection, version, epmItemCache, epmSourcePathSegment);
}
else
{
ODataMultiValue multiValueItem = item as ODataMultiValue;
if (multiValueItem != null)
{
throw new ODataException(Strings.ODataWriter_NestedMultiValuesAreNotSupported);
}
else
{
AtomValueUtils.WritePrimitiveValue(writer, item, expectedItemType);
}
}
writer.WriteEndElement();
}
}
}
/// <summary>
/// Reads all top-level entity reference links and the (optional) inline count and next link elements.
/// </summary>
/// <returns>An <see cref="ODataEntityReferenceLinks"/> instance representing the read entity reference links.</returns>
/// <remarks>
/// Pre-Condition: XmlNodeType.Element - The 'd:links' element.
/// Post-Condtion: any - The node after the 'd:links' end element (or empty 'd:links' element).
/// </remarks>
private ODataEntityReferenceLinks ReadLinksElement()
{
Debug.Assert(this.XmlReader != null, "this.XmlReader != null");
this.AssertXmlCondition(XmlNodeType.Element);
Debug.Assert(this.XmlReader.NamespaceURI == this.XmlReader.ODataNamespace, "this.XmlReader.NamespaceURI == this.XmlReader.ODataNamespace");
Debug.Assert(this.XmlReader.LocalName == AtomConstants.ODataLinksElementName, "this.XmlReader.LocalName == AtomConstants.ODataLinksElementName");
ODataEntityReferenceLinks links = new ODataEntityReferenceLinks();
List <ODataEntityReferenceLink> linkList = new List <ODataEntityReferenceLink>();
DuplicateEntityReferenceLinksElementBitMask elementsReadBitmask = DuplicateEntityReferenceLinksElementBitMask.None;
if (!this.XmlReader.IsEmptyElement)
{
// Move to the first child node of the element.
this.XmlReader.Read();
do
{
switch (this.XmlReader.NodeType)
{
case XmlNodeType.EndElement:
// end of the <links> element
continue;
case XmlNodeType.Element:
// <m:count>
if (this.XmlReader.NamespaceEquals(this.XmlReader.ODataMetadataNamespace) &&
this.XmlReader.LocalNameEquals(this.ODataCountElementName) &&
this.Version >= ODataVersion.V2)
{
VerifyEntityReferenceLinksElementNotFound(
ref elementsReadBitmask,
DuplicateEntityReferenceLinksElementBitMask.Count,
this.XmlReader.ODataMetadataNamespace,
AtomConstants.ODataCountElementName);
// Note that we allow negative values to be read.
long countValue = (long)AtomValueUtils.ReadPrimitiveValue(this.XmlReader, EdmCoreModel.Instance.GetInt64(false));
links.Count = countValue;
// Read over the end element of the <m:count> element
this.XmlReader.Read();
continue;
}
if (this.XmlReader.NamespaceEquals(this.XmlReader.ODataNamespace))
{
// <d:uri>
if (this.XmlReader.LocalNameEquals(this.ODataUriElementName))
{
ODataEntityReferenceLink link = this.ReadUriElement();
linkList.Add(link);
continue;
}
// <d:next>
if (this.XmlReader.LocalNameEquals(this.ODataNextElementName) && this.Version >= ODataVersion.V2)
{
VerifyEntityReferenceLinksElementNotFound(
ref elementsReadBitmask,
DuplicateEntityReferenceLinksElementBitMask.NextLink,
this.XmlReader.ODataNamespace,
AtomConstants.ODataNextLinkElementName);
// NOTE: get the base URI here before we read the content as string; reading the content as string will move the
// reader to the end element and thus we lose the xml:base definition on the element.
Uri xmlBaseUri = this.XmlReader.XmlBaseUri;
string uriString = this.XmlReader.ReadElementValue();
links.NextPageLink = this.ProcessUriFromPayload(uriString, xmlBaseUri);
continue;
}
}
break;
default:
break;
}
this.XmlReader.Skip();
}while (this.XmlReader.NodeType != XmlNodeType.EndElement);
}
// Read over the end element, or empty start element.
this.XmlReader.Read();
links.Links = new ReadOnlyEnumerable <ODataEntityReferenceLink>(linkList);
return(links);
}
