private void ReadCurrentProperties(List <AtomContentProperty> values)
{
Debug.Assert(values != null, "values != null");
Debug.Assert(this.reader.NodeType == XmlNodeType.Element, "this.reader.NodeType == XmlNodeType.Element");
while (this.reader.Read())
{
if (ShouldIgnoreNode(this.reader))
{
continue;
}
if (this.reader.NodeType == XmlNodeType.EndElement)
{
return;
}
if (this.reader.NodeType == XmlNodeType.Element)
{
AtomContentProperty prop = this.ReadPropertyValue();
if (prop != null)
{
values.Add(prop);
}
}
}
}
private AtomContentProperty ReadPropertyValue()
{
Debug.Assert(this.reader != null, "reader != null");
Debug.Assert(
this.reader.NodeType == XmlNodeType.Element,
"reader.NodeType == XmlNodeType.Element -- otherwise caller is confused as to where the reader is");
if (!this.IsDataWebElement)
{
SkipToEndAtDepth(this.reader, this.reader.Depth);
return(null);
}
AtomContentProperty result = new AtomContentProperty();
result.Name = this.reader.LocalName;
result.TypeName = this.reader.GetAttributeEx(XmlConstants.AtomTypeAttributeName, XmlConstants.DataWebMetadataNamespace);
result.IsNull = Util.DoesNullAttributeSayTrue(this.reader);
result.Text = result.IsNull ? null : String.Empty;
if (!this.reader.IsEmptyElement)
{
int depth = this.reader.Depth;
while (this.reader.Read())
{
this.ReadPropertyValueIntoResult(result);
if (this.reader.Depth == depth)
{
break;
}
}
}
return(result);
}
/// <summary>
/// Reads a property value and adds it as a text or a sub-property of
/// the specified <paramref name="property"/>.
/// </summary>
/// <param name="property">Property to read content into.</param>
private void ReadPropertyValueIntoResult(AtomContentProperty property)
{
Debug.Assert(this.reader != null, "reader != null");
Debug.Assert(property != null, "property != null");
switch (this.reader.NodeType)
{
case XmlNodeType.CDATA:
case XmlNodeType.SignificantWhitespace:
case XmlNodeType.Text:
if (!String.IsNullOrEmpty(property.Text))
{
throw Error.InvalidOperation(Strings.Deserialize_MixedTextWithComment);
}
property.Text = this.reader.Value;
break;
case XmlNodeType.Comment:
case XmlNodeType.Whitespace:
case XmlNodeType.ProcessingInstruction:
case XmlNodeType.EndElement:
// Do nothing.
// ProcessingInstruction, Whitespace would have thrown before
break;
case XmlNodeType.Element:
// We found an element while reading a property value. This should be
// a complex type.
if (!String.IsNullOrEmpty(property.Text))
{
throw Error.InvalidOperation(Strings.Deserialize_ExpectingSimpleValue);
}
property.EnsureProperties();
AtomContentProperty prop = this.ReadPropertyValue();
if (prop != null)
{
property.Properties.Add(prop);
}
break;
default:
throw Error.InvalidOperation(Strings.Deserialize_ExpectingSimpleValue);
}
}
/// <summary>This method will read a string or a complex type.</summary>
/// <returns>The property value read.</returns>
/// <remarks>Always checks for null attribute.</remarks>
private AtomContentProperty ReadPropertyValue()
{
Debug.Assert(this.reader != null, "reader != null");
Debug.Assert(
this.reader.NodeType == XmlNodeType.Element,
"reader.NodeType == XmlNodeType.Element -- otherwise caller is confused as to where the reader is");
if (!this.IsDataWebElement)
{
// we expect <d:PropertyName>...</d:PropertyName> only
SkipToEndAtDepth(this.reader, this.reader.Depth);
return null;
}
AtomContentProperty result = new AtomContentProperty();
result.Name = this.reader.LocalName;
result.TypeName = this.reader.GetAttributeEx(XmlConstants.AtomTypeAttributeName, XmlConstants.DataWebMetadataNamespace);
result.IsNull = Util.DoesNullAttributeSayTrue(this.reader);
result.Text = result.IsNull ? null : String.Empty;
if (!this.reader.IsEmptyElement)
{
int depth = this.reader.Depth;
while (this.reader.Read())
{
this.ReadPropertyValueIntoResult(result);
if (this.reader.Depth == depth)
{
break;
}
}
}
return result;
}
/// <summary>
/// Reads a property value and adds it as a text or a sub-property of
/// the specified <paramref name="property"/>.
/// </summary>
/// <param name="property">Property to read content into.</param>
private void ReadPropertyValueIntoResult(AtomContentProperty property)
{
Debug.Assert(this.reader != null, "reader != null");
Debug.Assert(property != null, "property != null");
switch (this.reader.NodeType)
{
case XmlNodeType.CDATA:
case XmlNodeType.SignificantWhitespace:
case XmlNodeType.Text:
if (!String.IsNullOrEmpty(property.Text))
{
throw Error.InvalidOperation(Strings.Deserialize_MixedTextWithComment);
}
property.Text = this.reader.Value;
break;
case XmlNodeType.Comment:
case XmlNodeType.Whitespace:
case XmlNodeType.ProcessingInstruction:
case XmlNodeType.EndElement:
// Do nothing.
// ProcessingInstruction, Whitespace would have thrown before
break;
case XmlNodeType.Element:
// We found an element while reading a property value. This should be
// a complex type.
if (!String.IsNullOrEmpty(property.Text))
{
throw Error.InvalidOperation(Strings.Deserialize_ExpectingSimpleValue);
}
property.EnsureProperties();
AtomContentProperty prop = this.ReadPropertyValue();
if (prop != null)
{
property.Properties.Add(prop);
}
break;
default:
throw Error.InvalidOperation(Strings.Deserialize_ExpectingSimpleValue);
}
}
private void ParseCurrentLink(AtomEntry targetEntry)
{
Debug.Assert(targetEntry != null, "targetEntry != null");
Debug.Assert(
this.reader.NodeType == XmlNodeType.Element,
"this.reader.NodeType == XmlNodeType.Element -- otherwise we shouldn't try to parse a link");
Debug.Assert(
this.reader.LocalName == "link",
"this.reader.LocalName == 'link' -- otherwise we shouldn't try to parse a link");
string relation = this.reader.GetAttribute(XmlConstants.AtomLinkRelationAttributeName);
if (relation == null)
{
return;
}
if (relation == XmlConstants.AtomEditRelationAttributeValue && targetEntry.EditLink == null)
{
// Only process the first link that has @rel='edit'.
string href = this.reader.GetAttribute(XmlConstants.AtomHRefAttributeName);
if (String.IsNullOrEmpty(href))
{
throw Error.InvalidOperation(Strings.Context_MissingEditLinkInResponseBody);
}
targetEntry.EditLink = this.ConvertHRefAttributeValueIntoURI(href);
}
else if (relation == XmlConstants.AtomSelfRelationAttributeValue && targetEntry.QueryLink == null)
{
// Only process the first link that has @rel='self'.
string href = this.reader.GetAttribute(XmlConstants.AtomHRefAttributeName);
if (String.IsNullOrEmpty(href))
{
throw Error.InvalidOperation(Strings.Context_MissingSelfLinkInResponseBody);
}
targetEntry.QueryLink = this.ConvertHRefAttributeValueIntoURI(href);
}
else if (relation == XmlConstants.AtomEditMediaRelationAttributeValue && targetEntry.MediaEditUri == null)
{
string href = this.reader.GetAttribute(XmlConstants.AtomHRefAttributeName);
if (String.IsNullOrEmpty(href))
{
throw Error.InvalidOperation(Strings.Context_MissingEditMediaLinkInResponseBody);
}
targetEntry.MediaEditUri = this.ConvertHRefAttributeValueIntoURI(href);
targetEntry.StreamETagText = this.reader.GetAttribute(XmlConstants.AtomETagAttributeName, XmlConstants.DataWebMetadataNamespace);
}
if (!this.reader.IsEmptyElement)
{
string propertyName = UriUtil.GetNameFromAtomLinkRelationAttribute(relation);
if (propertyName == null)
{
return;
}
string propertyValueText = this.reader.GetAttribute(XmlConstants.AtomTypeAttributeName);
bool isFeed;
if (!IsAllowedLinkType(propertyValueText, out isFeed))
{
return;
}
if (!ReadChildElement(this.reader, XmlConstants.AtomInlineElementName, XmlConstants.DataWebMetadataNamespace))
{
return;
}
bool emptyInlineCollection = this.reader.IsEmptyElement;
object propertyValue = null;
if (!emptyInlineCollection)
{
AtomFeed nestedFeed = null;
AtomEntry nestedEntry = null;
List<AtomEntry> feedEntries = null;
Debug.Assert(this.reader is Xml.XmlWrappingReader, "reader must be a instance of XmlWrappingReader");
string readerBaseUri = this.reader.BaseURI;
XmlReader nestedReader = Xml.XmlWrappingReader.CreateReader(readerBaseUri, this.reader.ReadSubtree());
nestedReader.Read();
Debug.Assert(nestedReader.LocalName == "inline", "nestedReader.LocalName == 'inline'");
AtomParser nested = new AtomParser(nestedReader, this.entryCallback, this.typeScheme, this.currentDataNamespace);
while (nested.Read())
{
switch (nested.DataKind)
{
case AtomDataKind.Feed:
feedEntries = new List<AtomEntry>();
nestedFeed = nested.CurrentFeed;
propertyValue = nestedFeed;
break;
case AtomDataKind.Entry:
nestedEntry = nested.CurrentEntry;
if (feedEntries != null)
{
feedEntries.Add(nestedEntry);
}
else
{
propertyValue = nestedEntry;
}
break;
case AtomDataKind.PagingLinks:
// Here the inner feed parser found a paging link, and stored it on nestedFeed.NextPageLink
// we are going to add it into a link table and associate
// with the collection at AtomMaterializer::Materialize()
// Do nothing for now.
break;
default:
throw new InvalidOperationException(Strings.AtomParser_UnexpectedContentUnderExpandedLink);
}
}
if (nestedFeed != null)
{
Debug.Assert(
nestedFeed.Entries == null,
"nestedFeed.Entries == null -- otherwise someone initialized this for us");
nestedFeed.Entries = feedEntries;
}
}
AtomContentProperty property = new AtomContentProperty();
property.Name = propertyName;
if (emptyInlineCollection || propertyValue == null)
{
property.IsNull = true;
if (isFeed)
{
property.Feed = new AtomFeed();
property.Feed.Entries = Enumerable.Empty<AtomEntry>();
}
else
{
property.Entry = new AtomEntry();
property.Entry.IsNull = true;
}
}
else
{
property.Feed = propertyValue as AtomFeed;
property.Entry = propertyValue as AtomEntry;
}
targetEntry.DataValues.Add(property);
}
}
private void ParseCurrentLink(AtomEntry targetEntry)
{
Debug.Assert(targetEntry != null, "targetEntry != null");
Debug.Assert(
this.reader.NodeType == XmlNodeType.Element,
"this.reader.NodeType == XmlNodeType.Element -- otherwise we shouldn't try to parse a link");
Debug.Assert(
this.reader.LocalName == "link",
"this.reader.LocalName == 'link' -- otherwise we shouldn't try to parse a link");
string relation = this.reader.GetAttribute(XmlConstants.AtomLinkRelationAttributeName);
if (relation == null)
{
return;
}
if (relation == XmlConstants.AtomEditRelationAttributeValue && targetEntry.EditLink == null)
{
string href = this.reader.GetAttribute(XmlConstants.AtomHRefAttributeName);
if (String.IsNullOrEmpty(href))
{
throw Error.InvalidOperation(Strings.Context_MissingEditLinkInResponseBody);
}
targetEntry.EditLink = this.ConvertHRefAttributeValueIntoURI(href);
}
else if (relation == XmlConstants.AtomSelfRelationAttributeValue && targetEntry.QueryLink == null)
{
string href = this.reader.GetAttribute(XmlConstants.AtomHRefAttributeName);
if (String.IsNullOrEmpty(href))
{
throw Error.InvalidOperation(Strings.Context_MissingSelfLinkInResponseBody);
}
targetEntry.QueryLink = this.ConvertHRefAttributeValueIntoURI(href);
}
else if (relation == XmlConstants.AtomEditMediaRelationAttributeValue && targetEntry.MediaEditUri == null)
{
string href = this.reader.GetAttribute(XmlConstants.AtomHRefAttributeName);
if (String.IsNullOrEmpty(href))
{
throw Error.InvalidOperation(Strings.Context_MissingEditMediaLinkInResponseBody);
}
targetEntry.MediaEditUri = this.ConvertHRefAttributeValueIntoURI(href);
targetEntry.StreamETagText = this.reader.GetAttribute(XmlConstants.AtomETagAttributeName, XmlConstants.DataWebMetadataNamespace);
}
if (!this.reader.IsEmptyElement)
{
string propertyName = UriUtil.GetNameFromAtomLinkRelationAttribute(relation);
if (propertyName == null)
{
return;
}
string propertyValueText = this.reader.GetAttribute(XmlConstants.AtomTypeAttributeName);
bool isFeed;
if (!IsAllowedLinkType(propertyValueText, out isFeed))
{
return;
}
if (!ReadChildElement(this.reader, XmlConstants.AtomInlineElementName, XmlConstants.DataWebMetadataNamespace))
{
return;
}
bool emptyInlineCollection = this.reader.IsEmptyElement;
object propertyValue = null;
if (!emptyInlineCollection)
{
AtomFeed nestedFeed = null;
AtomEntry nestedEntry = null;
List <AtomEntry> feedEntries = null;
Debug.Assert(this.reader is Xml.XmlWrappingReader, "reader must be a instance of XmlWrappingReader");
string readerBaseUri = this.reader.BaseURI;
XmlReader nestedReader = Xml.XmlWrappingReader.CreateReader(readerBaseUri, this.reader.ReadSubtree());
nestedReader.Read();
Debug.Assert(nestedReader.LocalName == "inline", "nestedReader.LocalName == 'inline'");
AtomParser nested = new AtomParser(nestedReader, this.entryCallback, this.typeScheme, this.currentDataNamespace);
while (nested.Read())
{
switch (nested.DataKind)
{
case AtomDataKind.Feed:
feedEntries = new List <AtomEntry>();
nestedFeed = nested.CurrentFeed;
propertyValue = nestedFeed;
break;
case AtomDataKind.Entry:
nestedEntry = nested.CurrentEntry;
if (feedEntries != null)
{
feedEntries.Add(nestedEntry);
}
else
{
propertyValue = nestedEntry;
}
break;
case AtomDataKind.PagingLinks:
break;
default:
throw new InvalidOperationException(Strings.AtomParser_UnexpectedContentUnderExpandedLink);
}
}
if (nestedFeed != null)
{
Debug.Assert(
nestedFeed.Entries == null,
"nestedFeed.Entries == null -- otherwise someone initialized this for us");
nestedFeed.Entries = feedEntries;
}
}
AtomContentProperty property = new AtomContentProperty();
property.Name = propertyName;
if (emptyInlineCollection || propertyValue == null)
{
property.IsNull = true;
if (isFeed)
{
property.Feed = new AtomFeed();
property.Feed.Entries = Enumerable.Empty <AtomEntry>();
}
else
{
property.Entry = new AtomEntry();
property.Entry.IsNull = true;
}
}
else
{
property.Feed = propertyValue as AtomFeed;
property.Entry = propertyValue as AtomEntry;
}
targetEntry.DataValues.Add(property);
}
}