public ODataPayloadElement DeserializeFromBinary(byte[] serialized, ODataPayloadContext payloadContext)
{
ExceptionUtilities.CheckArgumentNotNull(serialized, "serialized");
ExceptionUtilities.CheckArgumentNotNull(payloadContext, "payloadContext");
string encodingName = payloadContext.EncodingName;
ODataPayloadElement errorPayload = null;
if (this.payloadErrorDeserializer.TryDeserializeErrorPayload(serialized, encodingName, out errorPayload))
{
return errorPayload;
}
var encoding = HttpUtilities.GetEncodingOrDefault(encodingName);
XDocument document = null;
using (StreamReader reader = new StreamReader(new MemoryStream(serialized), encoding))
{
document = XDocument.Load(reader);
}
ExceptionUtilities.Assert(document != null, "Deserialized document cannot be null.");
return this.xmlConverter.ConvertToPayloadElement(document.Root);
}
/// <summary>
/// Deserializes the payload using the JsonParser, then converts the resulting clr objects into payload element form
/// Throws an TaupoInvalidOperationException if the json does not evaluate successfully.
/// </summary>
/// <param name="serialized">A raw json payload</param>
/// <param name="payloadContext">Additional payload information to aid deserialization</param>
/// <returns>A PayloadElement representation of the payload</returns>
public ODataPayloadElement DeserializeFromBinary(byte[] serialized, ODataPayloadContext payloadContext)
{
ExceptionUtilities.CheckArgumentNotNull(serialized, "serialized");
ExceptionUtilities.CheckArgumentNotNull(payloadContext, "payloadContext");
string encodingName = payloadContext.EncodingName;
ODataPayloadElement errorPayload = null;
if (this.payloadErrorDeserializer.TryDeserializeErrorPayload(serialized, encodingName, out errorPayload))
{
return errorPayload;
}
// Evaluate the given JSON text
Encoding encoding = HttpUtilities.GetEncodingOrDefault(encodingName);
string payload = encoding.GetString(serialized, 0, serialized.Length);
JsonValue jsonData = null;
using (StringReader reader = new StringReader(payload))
{
JsonTokenizer tokenizer = new JsonTokenizer(reader);
JsonParser parser = new JsonParser(tokenizer);
jsonData = parser.ParseValue();
}
// convert the deserialized JsonValue objects into payload elements
return this.payloadConverter.ConvertToPayloadElement(jsonData);
}
private static void SetExpectedEntitySetAndTypeFromUri(ODataPayloadContext payloadContext, ODataUri uri)
{
EntitySet entitySet = null;
EntityType entityType = null;
uri.TryGetExpectedEntitySetAndType(out entitySet, out entityType);
payloadContext.ExpectedEntitySet = entitySet;
payloadContext.ExpectedEntityType = entityType;
}
/// <summary>
/// Deserializes the given binary payload as a long integer value
/// </summary>
/// <param name="serialized">The serialized value</param>
/// <param name="payloadContext">Additional payload information to aid deserialization</param>
/// <returns>A primitive value containing the binary payload</returns>
public override ODataPayloadElement DeserializeFromBinary(byte[] serialized, ODataPayloadContext payloadContext)
{
var value = base.DeserializeFromBinary(serialized, payloadContext) as PrimitiveValue;
ExceptionUtilities.CheckObjectNotNull(value, "Value unexpectedly null or not a primitive value");
var stringValue = value.ClrValue as string;
ExceptionUtilities.CheckObjectNotNull(stringValue, "Primitive value unexpectedly null or not a string");
value.ClrValue = this.XmlPrimitiveConverter.DeserializePrimitive(stringValue, typeof(long));
return value;
}
/// <summary>
/// Builds a new instance of the ODataPayloadContext class based on an ODataRequest.
/// </summary>
/// <param name="request">The request to build the payload context from.</param>
/// <returns>The payload context for the request.</returns>
public static ODataPayloadContext BuildPayloadContextFromRequest(HttpRequestData<ODataUri, ODataPayloadBody> request)
{
var payloadContext = new ODataPayloadContext();
ODataUri uri = request.Uri;
if (uri != null)
{
payloadContext = BuildODataPayloadContextFromODataUri(uri);
}
payloadContext.EffectiveRequestVerb = request.GetEffectiveVerb();
return payloadContext;
}
/// <summary>
/// Builds a new instance of the ODataPayloadContext class based on an ODataRequest.
/// </summary>
/// <param name="request">The request to build the payload context from.</param>
/// <returns>The payload context for the request.</returns>
public static ODataPayloadContext BuildPayloadContextFromRequest(HttpRequestData <ODataUri, ODataPayloadBody> request)
{
var payloadContext = new ODataPayloadContext();
ODataUri uri = request.Uri;
if (uri != null)
{
payloadContext = BuildODataPayloadContextFromODataUri(uri);
}
payloadContext.EffectiveRequestVerb = request.GetEffectiveVerb();
return(payloadContext);
}
/// <summary>
/// Deserializes the given binary payload as a text value
/// </summary>
/// <param name="serialized">The serialized value</param>
/// <param name="payloadContext">Additional payload information to aid deserialization</param>
/// <returns>A primitive value containing the binary payload</returns>
public override ODataPayloadElement DeserializeFromBinary(byte[] serialized, ODataPayloadContext payloadContext)
{
ExceptionUtilities.CheckArgumentNotNull(serialized, "serialized");
ExceptionUtilities.CheckArgumentNotNull(payloadContext, "payloadContext");
string encodingName = payloadContext.EncodingName;
ODataPayloadElement errorPayloadElement = null;
if (this.HtmlPayloadErrorDeserializer.TryDeserializeErrorPayload(serialized, encodingName, out errorPayloadElement))
{
return errorPayloadElement;
}
Encoding encoding = HttpUtilities.GetEncodingOrDefault(encodingName);
// cannot guess type, must deserialize as a string
return new PrimitiveValue(null, encoding.GetString(serialized, 0, serialized.Length));
}
/// <summary>
/// Deserializes the given binary payload as a primitive binary value
/// </summary>
/// <param name="serialized">The serialized value</param>
/// <param name="payloadContext">Additional payload information to aid deserialization</param>
/// <returns>A primitive value containing the binary payload</returns>
public override ODataPayloadElement DeserializeFromBinary(byte[] serialized, ODataPayloadContext payloadContext)
{
ExceptionUtilities.CheckArgumentNotNull(serialized, "serialized");
return new PrimitiveValue(null, serialized);
}
/// <summary>
/// Builds the ODataPayloadContext context from OODataUri.
/// </summary>
/// <param name="uri">The URI.</param>
/// <returns>A OData Payload Context</returns>
public static ODataPayloadContext BuildODataPayloadContextFromODataUri(ODataUri uri)
{
var payloadContext = new ODataPayloadContext();
payloadContext.PayloadUri = uri;
payloadContext.ExpectedPayloadKind = uri.GetExpectedPayloadType();
switch (payloadContext.ExpectedPayloadKind)
{
case ODataPayloadElementType.EntitySetInstance:
case ODataPayloadElementType.EntityInstance:
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
break;
case ODataPayloadElementType.PrimitiveProperty:
case ODataPayloadElementType.PrimitiveMultiValueProperty:
case ODataPayloadElementType.ComplexProperty:
case ODataPayloadElementType.ComplexMultiValueProperty:
case ODataPayloadElementType.EmptyCollectionProperty:
var propertySegment = uri.Segments.OfType <PropertySegment>().LastOrDefault();
if (propertySegment != null)
{
payloadContext.ExpectedMemberProperty = propertySegment.Property;
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
var parentPropertySegment = uri.Segments.GetSecondToLastOrDefault <PropertySegment>();
if (parentPropertySegment != null)
{
var collectionDataType = parentPropertySegment.Property.PropertyType as CollectionDataType;
if (collectionDataType != null)
{
var elementComplexDataType = collectionDataType.ElementDataType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(elementComplexDataType, "Expected non complex DataType");
payloadContext.ExpectedPropertyDeclaringParentType = elementComplexDataType.Definition;
}
else
{
var complexDataType = parentPropertySegment.Property.PropertyType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(complexDataType, "Expected non null complex DataType");
payloadContext.ExpectedPropertyDeclaringParentType = complexDataType.Definition;
}
}
else
{
payloadContext.ExpectedPropertyDeclaringParentType = payloadContext.ExpectedEntityType;
}
}
else
{
ExceptionUtilities.Assert(
uri.IsFunction() || uri.IsServiceOperation() || uri.IsAction(),
"Property uri contains no property segments and is not a function/service operation/action.");
var functionSegment = uri.Segments.Last() as FunctionSegment ?? uri.Segments[uri.Segments.Count - 2] as FunctionSegment;
ExceptionUtilities.CheckObjectNotNull(functionSegment, "Failed to find function segment in finction/service operation uri");
payloadContext.ExpectedFunction = functionSegment.Function;
}
break;
case ODataPayloadElementType.DeferredLink:
case ODataPayloadElementType.LinkCollection:
var navigationSegment = uri.Segments.OfType <NavigationSegment>().Last();
ExceptionUtilities.CheckObjectNotNull(navigationSegment, "No navigation segments found for expected navigation property uri");
payloadContext.ExpectedNavigationProperty = navigationSegment.NavigationProperty;
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
break;
}
return(payloadContext);
}
/// <summary>
/// Deserializes the given binary payload as an html form payload
/// </summary>
/// <param name="serialized">The serialized value</param>
/// <param name="payloadContext">Additional payload information to aid deserialization</param>
/// <returns>A ODataPayloadElement corresponding to the binary payload</returns>
public override ODataPayloadElement DeserializeFromBinary(byte[] serialized, ODataPayloadContext payloadContext)
{
throw new TaupoNotSupportedException("Deserialization not supported");
}
/// <summary> /// Deserializes the given binary payload /// </summary> /// <param name="serialized">The serialized value</param> /// <param name="payloadContext">Additional payload information to aid deserialization</param> /// <returns>A primitive value containing the binary payload</returns> public abstract ODataPayloadElement DeserializeFromBinary(byte[] serialized, ODataPayloadContext payloadContext);
/// <summary>
/// Builds the ODataPayloadContext context from OODataUri.
/// </summary>
/// <param name="uri">The URI.</param>
/// <returns>A OData Payload Context</returns>
public static ODataPayloadContext BuildODataPayloadContextFromODataUri(ODataUri uri)
{
var payloadContext = new ODataPayloadContext();
payloadContext.PayloadUri = uri;
payloadContext.ExpectedPayloadKind = uri.GetExpectedPayloadType();
switch (payloadContext.ExpectedPayloadKind)
{
case ODataPayloadElementType.EntitySetInstance:
case ODataPayloadElementType.EntityInstance:
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
break;
case ODataPayloadElementType.PrimitiveProperty:
case ODataPayloadElementType.PrimitiveMultiValueProperty:
case ODataPayloadElementType.ComplexProperty:
case ODataPayloadElementType.ComplexMultiValueProperty:
case ODataPayloadElementType.EmptyCollectionProperty:
var propertySegment = uri.Segments.OfType<PropertySegment>().LastOrDefault();
if (propertySegment != null)
{
payloadContext.ExpectedMemberProperty = propertySegment.Property;
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
var parentPropertySegment = uri.Segments.GetSecondToLastOrDefault<PropertySegment>();
if (parentPropertySegment != null)
{
var collectionDataType = parentPropertySegment.Property.PropertyType as CollectionDataType;
if (collectionDataType != null)
{
var elementComplexDataType = collectionDataType.ElementDataType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(elementComplexDataType, "Expected non complex DataType");
payloadContext.ExpectedPropertyDeclaringParentType = elementComplexDataType.Definition;
}
else
{
var complexDataType = parentPropertySegment.Property.PropertyType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(complexDataType, "Expected non null complex DataType");
payloadContext.ExpectedPropertyDeclaringParentType = complexDataType.Definition;
}
}
else
{
payloadContext.ExpectedPropertyDeclaringParentType = payloadContext.ExpectedEntityType;
}
}
else
{
ExceptionUtilities.Assert(
uri.IsFunction() || uri.IsServiceOperation() || uri.IsAction(),
"Property uri contains no property segments and is not a function/service operation/action.");
var functionSegment = uri.Segments.Last() as FunctionSegment ?? uri.Segments[uri.Segments.Count - 2] as FunctionSegment;
ExceptionUtilities.CheckObjectNotNull(functionSegment, "Failed to find function segment in finction/service operation uri");
payloadContext.ExpectedFunction = functionSegment.Function;
}
break;
case ODataPayloadElementType.DeferredLink:
case ODataPayloadElementType.LinkCollection:
var navigationSegment = uri.Segments.OfType<NavigationSegment>().Last();
ExceptionUtilities.CheckObjectNotNull(navigationSegment, "No navigation segments found for expected navigation property uri");
payloadContext.ExpectedNavigationProperty = navigationSegment.NavigationProperty;
SetExpectedEntitySetAndTypeFromUri(payloadContext, uri);
break;
}
return payloadContext;
}
private static void SetExpectedEntitySetAndTypeFromUri(ODataPayloadContext payloadContext, ODataUri uri)
{
EntitySet entitySet = null;
EntityType entityType = null;
uri.TryGetExpectedEntitySetAndType(out entitySet, out entityType);
payloadContext.ExpectedEntitySet = entitySet;
payloadContext.ExpectedEntityType = entityType;
}
