public void AddChildParser(XmlElementParser child)
{
this.childParsers[child.ElementName] = child;
}
protected abstract bool TryGetDocumentElementParser(Version artifactVersion, XmlElementInfo rootElement, out XmlElementParser <TResult> parser);
protected sealed override bool TryGetRootElementParser(Version artifactVersion, XmlElementInfo rootElement, out XmlElementParser parser)
{
XmlElementParser <TResult> xmlElementParser = null;
if (!this.TryGetDocumentElementParser(artifactVersion, rootElement, out xmlElementParser))
{
parser = null;
return(false);
}
else
{
parser = xmlElementParser;
return(true);
}
}
internal ElementScope(XmlElementParser parser, XmlElementInfo element)
{
this.Parser = parser;
this.Element = element;
}
private void EndElement()
{
ElementScope scope = this.currentBranch.Pop();
this.currentScope = this.currentBranch.Count > 0 ? this.currentBranch.Peek() : null;
XmlElementParser parser = scope.Parser;
XmlElementValue resultValue = parser.Parse(scope.Element, scope.ChildValues);
if (resultValue != null)
{
if (this.currentScope != null)
{
this.currentScope.AddChildValue(resultValue);
}
else
{
this.Result = resultValue;
}
}
foreach (var unused in scope.Element.Attributes.Unused)
{
// there's no handler for (namespace,name) and there wasn't a validation error.
// Report an error of our own if the node is in no namespace or if it is in one of our xml schemas target namespace.
this.ReportUnexpectedAttribute(unused.Location, unused.Name);
}
// For text nodes, one may be expected but additional text should cause an error.
var textNodes = scope.ChildValues.Where(v => v.IsText);
var unusedText = textNodes.Where(t => !t.IsUsed);
if (unusedText.Any())
{
XmlTextValue firstInvalidText;
if (unusedText.Count() == textNodes.Count())
{
// Text is not expected at all for this element
firstInvalidText = (XmlTextValue)textNodes.First();
}
else
{
// Additional text was unexpected
firstInvalidText = (XmlTextValue)unusedText.First();
}
this.ReportTextNotAllowed(firstInvalidText.Location, firstInvalidText.Value);
}
// If any elements were unused, the csdl is not properly formed. This could be a result of an entirely unexpected element
// or, it could be an expected but superfluous element.
// Consider:
// <ReferentialConstraint>
// <Principal>... </Principal>
// <Dependent>... </Dependent>
// <Principal>... </Principal>
// </ReferentialConstraint>
//
// The second occurrence of 'Principal' will be successfully parsed, but the element parser for ReferentialConstraint will not use its value because only the first occurence is expected.
// This will also catch if only a single type reference (Row, Collection, EntityReference) element was expected but multiple are provided
foreach (var unusedChildValue in scope.ChildValues.Where(v => !v.IsText && !v.IsUsed))
{
this.ReportUnusedElement(unusedChildValue.Location, unusedChildValue.Name);
}
}
protected virtual XmlElementParser <TResult> Element <TResult>(string elementName, Func <XmlElementInfo, XmlElementValueCollection, TResult> parserFunc, params XmlElementParser[] childParsers)
{
return(XmlElementParser.Create(elementName, parserFunc, childParsers, null));
}
protected abstract bool TryGetRootElementParser(Version artifactVersion, XmlElementInfo rootElement, out XmlElementParser parser);
internal bool TryGetChildElementParser(string elementName, out XmlElementParser elementParser)
{
elementParser = null;
return(this.childParsers != null && this.childParsers.TryGetValue(elementName, out elementParser));
}