private static void VerifyInnerErrorElementNotFound(ref DuplicateInnerErrorElementPropertyBitMask elementsFoundBitField, DuplicateInnerErrorElementPropertyBitMask elementFoundBitMask, string elementName)
{
if ((elementsFoundBitField & elementFoundBitMask) == elementFoundBitMask)
{
throw new ODataException(Strings.ODataAtomErrorDeserializer_MultipleInnerErrorElementsWithSameName(elementName));
}
elementsFoundBitField |= elementFoundBitMask;
}
/// <summary>
/// Verifies that the specified element was not yet found in an inner error 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="elementName">The name of the element to check (used for error reporting).</param>
private static void VerifyInnerErrorElementNotFound(
ref DuplicateInnerErrorElementPropertyBitMask elementsFoundBitField,
DuplicateInnerErrorElementPropertyBitMask elementFoundBitMask,
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.ODataAtomErrorDeserializer_MultipleInnerErrorElementsWithSameName(elementName));
}
elementsFoundBitField |= elementFoundBitMask;
}
/// <summary>
/// Reads the content of an inner error element.
/// </summary>
/// <param name="xmlReader">The (buffering) Xml reader to read the error payload from.</param>
/// <param name="recursionDepth">The number of times this function has been called recursively.</param>
/// <param name="maxInnerErrorDepth">The maximumum number of recursive internalexception elements to allow.</param>
/// <returns>The <see cref="ODataInnerError"/> representing the inner error.</returns>
/// <remarks>
/// Pre-Condition: XmlNodeType.Element - the m:innererror or m:internalexception element
/// Post-Condition: Any - the node after the m:innererror/m:internalexception end element or the node after the empty m:innererror/m:internalexception element node.
/// </remarks>
private static ODataInnerError ReadInnerErrorElement(BufferingXmlReader xmlReader, int recursionDepth, int maxInnerErrorDepth)
{
Debug.Assert(xmlReader != null, "this.XmlReader != null");
Debug.Assert(xmlReader.NodeType == XmlNodeType.Element, "xmlReader.NodeType == XmlNodeType.Element");
Debug.Assert(
xmlReader.LocalName == AtomConstants.ODataInnerErrorElementName ||
xmlReader.LocalName == AtomConstants.ODataInnerErrorInnerErrorElementName,
"Expected reader to be positioned on 'm:innererror' or 'm:internalexception' element.");
Debug.Assert(xmlReader.NamespaceEquals(xmlReader.ODataMetadataNamespace), "this.XmlReader.NamespaceEquals(this.ODataMetadataNamespace)");
ValidationUtils.IncreaseAndValidateRecursionDepth(ref recursionDepth, maxInnerErrorDepth);
ODataInnerError innerError = new ODataInnerError();
DuplicateInnerErrorElementPropertyBitMask elementsReadBitmask = DuplicateInnerErrorElementPropertyBitMask.None;
if (!xmlReader.IsEmptyElement)
{
// Move to the first child node of the element.
xmlReader.Read();
do
{
switch (xmlReader.NodeType)
{
case XmlNodeType.EndElement:
// end of the <m:innererror> or <m:internalexception> element
continue;
case XmlNodeType.Element:
if (xmlReader.NamespaceEquals(xmlReader.ODataMetadataNamespace))
{
switch (xmlReader.LocalName)
{
// <m:message>
case AtomConstants.ODataInnerErrorMessageElementName:
VerifyInnerErrorElementNotFound(
ref elementsReadBitmask,
DuplicateInnerErrorElementPropertyBitMask.Message,
AtomConstants.ODataInnerErrorMessageElementName);
innerError.Message = xmlReader.ReadElementValue();
continue;
// <m:type>
case AtomConstants.ODataInnerErrorTypeElementName:
VerifyInnerErrorElementNotFound(
ref elementsReadBitmask,
DuplicateInnerErrorElementPropertyBitMask.TypeName,
AtomConstants.ODataInnerErrorTypeElementName);
innerError.TypeName = xmlReader.ReadElementValue();
continue;
// <m:stacktrace>
case AtomConstants.ODataInnerErrorStackTraceElementName:
VerifyInnerErrorElementNotFound(
ref elementsReadBitmask,
DuplicateInnerErrorElementPropertyBitMask.StackTrace,
AtomConstants.ODataInnerErrorStackTraceElementName);
innerError.StackTrace = xmlReader.ReadElementValue();
continue;
// <m:internalexception>
case AtomConstants.ODataInnerErrorInnerErrorElementName:
VerifyInnerErrorElementNotFound(
ref elementsReadBitmask,
DuplicateInnerErrorElementPropertyBitMask.InternalException,
AtomConstants.ODataInnerErrorInnerErrorElementName);
innerError.InnerError = ReadInnerErrorElement(xmlReader, recursionDepth, maxInnerErrorDepth);
continue;
default:
break;
}
}
break;
default:
break;
}
xmlReader.Skip();
}while (xmlReader.NodeType != XmlNodeType.EndElement);
}
// Read over the end element, or empty start element.
xmlReader.Read();
return(innerError);
}
/// <summary>
/// Verifies that the specified element was not yet found in an inner error 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="elementName">The name of the element to check (used for error reporting).</param>
private static void VerifyInnerErrorElementNotFound(
ref DuplicateInnerErrorElementPropertyBitMask elementsFoundBitField,
DuplicateInnerErrorElementPropertyBitMask elementFoundBitMask,
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.ODataAtomErrorDeserializer_MultipleInnerErrorElementsWithSameName(elementName));
}
elementsFoundBitField |= elementFoundBitMask;
}
private static void VerifyInnerErrorElementNotFound(ref DuplicateInnerErrorElementPropertyBitMask elementsFoundBitField, DuplicateInnerErrorElementPropertyBitMask elementFoundBitMask, string elementName)
{
if ((elementsFoundBitField & elementFoundBitMask) == elementFoundBitMask)
{
throw new ODataException(Strings.ODataAtomErrorDeserializer_MultipleInnerErrorElementsWithSameName(elementName));
}
elementsFoundBitField |= elementFoundBitMask;
}
private static ODataInnerError ReadInnerErrorElement(BufferingXmlReader xmlReader, int recursionDepth, int maxInnerErrorDepth)
{
ValidationUtils.IncreaseAndValidateRecursionDepth(ref recursionDepth, maxInnerErrorDepth);
ODataInnerError error = new ODataInnerError();
DuplicateInnerErrorElementPropertyBitMask none = DuplicateInnerErrorElementPropertyBitMask.None;
if (xmlReader.IsEmptyElement)
{
goto Label_010F;
}
xmlReader.Read();
Label_0022:
switch (xmlReader.NodeType)
{
case XmlNodeType.Element:
string str;
if (xmlReader.NamespaceEquals(xmlReader.ODataMetadataNamespace) && ((str = xmlReader.LocalName) != null))
{
if (!(str == "message"))
{
if (str == "type")
{
VerifyInnerErrorElementNotFound(ref none, DuplicateInnerErrorElementPropertyBitMask.TypeName, "type");
error.TypeName = xmlReader.ReadElementValue();
goto Label_0102;
}
if (str == "stacktrace")
{
VerifyInnerErrorElementNotFound(ref none, DuplicateInnerErrorElementPropertyBitMask.StackTrace, "stacktrace");
error.StackTrace = xmlReader.ReadElementValue();
goto Label_0102;
}
if (str == "internalexception")
{
VerifyInnerErrorElementNotFound(ref none, DuplicateInnerErrorElementPropertyBitMask.InternalException, "internalexception");
error.InnerError = ReadInnerErrorElement(xmlReader, recursionDepth, maxInnerErrorDepth);
goto Label_0102;
}
}
else
{
VerifyInnerErrorElementNotFound(ref none, DuplicateInnerErrorElementPropertyBitMask.Message, "message");
error.Message = xmlReader.ReadElementValue();
goto Label_0102;
}
}
break;
case XmlNodeType.EndElement:
goto Label_0102;
}
xmlReader.Skip();
Label_0102:
if (xmlReader.NodeType != XmlNodeType.EndElement)
{
goto Label_0022;
}
Label_010F:
xmlReader.Read();
return(error);
}
