private static void VerifyEntityReferenceLinksElementNotFound(ref DuplicateEntityReferenceLinksElementBitMask elementsFoundBitField, DuplicateEntityReferenceLinksElementBitMask elementFoundBitMask, string elementNamespace, string elementName)
{
if ((elementsFoundBitField & elementFoundBitMask) == elementFoundBitMask)
{
throw new ODataException(Strings.ODataAtomEntityReferenceLinkDeserializer_MultipleEntityReferenceLinksElementsWithSameName(elementNamespace, elementName));
}
elementsFoundBitField |= elementFoundBitMask;
}
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>
/// Verifies that the specified element was not yet found in the entity reference links element.
/// </summary>
/// <param name="elementsFoundBitField">The bit field which stores which elements of an inner error were found so far.</param>
/// <param name="elementFoundBitMask">The bit mask for the element to check.</param>
/// <param name="elementNamespace">The namespace name of the element ot check (used for error reporting).</param>
/// <param name="elementName">The name of the element to check (used for error reporting).</param>
private static void VerifyEntityReferenceLinksElementNotFound(
ref DuplicateEntityReferenceLinksElementBitMask elementsFoundBitField,
DuplicateEntityReferenceLinksElementBitMask elementFoundBitMask,
string elementNamespace,
string elementName)
{
Debug.Assert(((int)elementFoundBitMask & (((int)elementFoundBitMask) - 1)) == 0, "elementFoundBitMask is not a power of 2.");
Debug.Assert(!string.IsNullOrEmpty(elementName), "!string.IsNullOrEmpty(elementName)");
if ((elementsFoundBitField & elementFoundBitMask) == elementFoundBitMask)
{
throw new ODataException(Strings.ODataAtomEntityReferenceLinkDeserializer_MultipleEntityReferenceLinksElementsWithSameName(elementNamespace, elementName));
}
elementsFoundBitField |= elementFoundBitMask;
}
/// <summary>
/// Verifies that the specified element was not yet found in the entity reference links element.
/// </summary>
/// <param name="elementsFoundBitField">The bit field which stores which elements of an inner error were found so far.</param>
/// <param name="elementFoundBitMask">The bit mask for the element to check.</param>
/// <param name="elementNamespace">The namespace name of the element ot check (used for error reporting).</param>
/// <param name="elementName">The name of the element to check (used for error reporting).</param>
private static void VerifyEntityReferenceLinksElementNotFound(
ref DuplicateEntityReferenceLinksElementBitMask elementsFoundBitField,
DuplicateEntityReferenceLinksElementBitMask elementFoundBitMask,
string elementNamespace,
string elementName)
{
Debug.Assert(((int)elementFoundBitMask & (((int)elementFoundBitMask) - 1)) == 0, "elementFoundBitMask is not a power of 2.");
Debug.Assert(!string.IsNullOrEmpty(elementName), "!string.IsNullOrEmpty(elementName)");
if ((elementsFoundBitField & elementFoundBitMask) == elementFoundBitMask)
{
throw new ODataException(Strings.ODataAtomEntityReferenceLinkDeserializer_MultipleEntityReferenceLinksElementsWithSameName(elementNamespace, elementName));
}
elementsFoundBitField |= elementFoundBitMask;
}
/// <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);
}
private static void VerifyEntityReferenceLinksElementNotFound(ref DuplicateEntityReferenceLinksElementBitMask elementsFoundBitField, DuplicateEntityReferenceLinksElementBitMask elementFoundBitMask, string elementNamespace, string elementName)
{
if ((elementsFoundBitField & elementFoundBitMask) == elementFoundBitMask)
{
throw new ODataException(Strings.ODataAtomEntityReferenceLinkDeserializer_MultipleEntityReferenceLinksElementsWithSameName(elementNamespace, elementName));
}
elementsFoundBitField |= elementFoundBitMask;
}
