#pragma warning restore 649 #endif #endregion Private fields. internal MaterializeAtom(DataServiceContext context, XmlReader reader, QueryComponents queryComponents, ProjectionPlan plan, MergeOption mergeOption) { Debug.Assert(queryComponents != null, "queryComponents != null"); this.context = context; this.elementType = queryComponents.LastSegmentType; this.MergeOptionValue = mergeOption; this.ignoreMissingProperties = context.IgnoreMissingProperties; this.reader = (reader == null) ? null : new System.Data.Services.Client.Xml.XmlAtomErrorReader(reader); this.countValue = CountStateInitial; this.expectingSingleValue = ClientConvert.IsKnownNullableType(elementType); Debug.Assert(reader != null, "Materializer reader is null! Did you mean to use Materializer.ResultsWrapper/EmptyResults?"); reader.Settings.NameTable.Add(context.DataNamespace); string typeScheme = this.context.TypeScheme.OriginalString; this.parser = new AtomParser(this.reader, AtomParser.XElementBuilderCallback, typeScheme, context.DataNamespace); AtomMaterializerLog log = new AtomMaterializerLog(this.context, mergeOption); Type implementationType; Type materializerType = GetTypeForMaterializer(this.expectingSingleValue, this.elementType, out implementationType); this.materializer = new AtomMaterializer(parser, context, materializerType, this.ignoreMissingProperties, mergeOption, log, this.MaterializedObjectCallback, queryComponents, plan); }
#pragma warning restore 649 #endif #endregion Private fields. /// <summary> /// constructor /// </summary> /// <param name="context">originating context</param> /// <param name="reader">reader</param> /// <param name="queryComponents">Query components (projection, expected type)</param> /// <param name="plan">Projection plan (if compiled in an earlier query).</param> /// <param name="mergeOption">merge option to use for this materialization pass</param> internal MaterializeAtom(DataServiceContext context, XmlReader reader, QueryComponents queryComponents, ProjectionPlan plan, MergeOption mergeOption) { Debug.Assert(queryComponents != null, "queryComponents != null"); this.context = context; this.elementType = queryComponents.LastSegmentType; this.MergeOptionValue = mergeOption; this.ignoreMissingProperties = context.IgnoreMissingProperties; this.reader = (reader == null) ? null : new System.Data.Services.Client.Xml.XmlAtomErrorReader(reader); this.countValue = CountStateInitial; this.expectingSingleValue = ClientConvert.IsKnownNullableType(elementType); Debug.Assert(reader != null, "Materializer reader is null! Did you mean to use Materializer.ResultsWrapper/EmptyResults?"); // NOTE: dataNamespace is used for reference equality, and while it looks like // a variable, it appears that it will only get set to XmlConstants.DataWebNamespace // at runtime. Therefore we remove string dataNamespace as a field here. // this.dataNamespace = reader != null ? reader.Settings.NameTable.Add(context.DataNamespace) : null; reader.Settings.NameTable.Add(context.DataNamespace); string typeScheme = this.context.TypeScheme.OriginalString; this.parser = new AtomParser(this.reader, AtomParser.XElementBuilderCallback, typeScheme, context.DataNamespace); AtomMaterializerLog log = new AtomMaterializerLog(this.context, mergeOption); Type implementationType; Type materializerType = GetTypeForMaterializer(this.expectingSingleValue, this.elementType, out implementationType); this.materializer = new AtomMaterializer(parser, context, materializerType, this.ignoreMissingProperties, mergeOption, log, this.MaterializedObjectCallback, queryComponents, plan); }
/// <summary> /// Parses the content on the reader into the specified <paramref name="targetEntry"/>. /// </summary> /// <param name="targetEntry">Target to read values into.</param> private void ParseCurrentContent(AtomEntry targetEntry) { Debug.Assert(targetEntry != null, "targetEntry != null"); Debug.Assert(this.reader.NodeType == XmlNodeType.Element, "this.reader.NodeType == XmlNodeType.Element"); string propertyValue = this.reader.GetAttributeEx(XmlConstants.AtomContentSrcAttributeName, XmlConstants.AtomNamespace); if (propertyValue != null) { // This is a media link entry // Note that in this case we don't actually use this URL (or the link/edit-media URL) // for editing. We rely on the Astoria URL convention (/propname/$value or just /$value) if (!this.reader.IsEmptyElement) { throw Error.InvalidOperation(Strings.Deserialize_ExpectedEmptyMediaLinkEntryContent); } targetEntry.MediaLinkEntry = true; targetEntry.MediaContentUri = new Uri(propertyValue, UriKind.RelativeOrAbsolute); } else { // This is a regular (non-media link) entry if (targetEntry.MediaLinkEntry.HasValue && targetEntry.MediaLinkEntry.Value) { // This means we saw a <m:Properties> element but now we have a Content element // that's not just a media link entry pointer (src) throw Error.InvalidOperation(Strings.Deserialize_ContentPlusPropertiesNotAllowed); } targetEntry.MediaLinkEntry = false; propertyValue = this.reader.GetAttributeEx(XmlConstants.AtomTypeAttributeName, XmlConstants.AtomNamespace); if (AtomParser.IsAllowedContentType(propertyValue)) { if (this.reader.IsEmptyElement) { return; } if (ReadChildElement(this.reader, XmlConstants.AtomPropertiesElementName, XmlConstants.DataWebMetadataNamespace)) { this.ReadCurrentProperties(targetEntry.DataValues); } else if (this.reader.NodeType != XmlNodeType.EndElement) { throw Error.InvalidOperation(Strings.Deserialize_NotApplicationXml); } } } }
private void ParseCurrentContent(AtomEntry targetEntry) { Debug.Assert(targetEntry != null, "targetEntry != null"); Debug.Assert(this.reader.NodeType == XmlNodeType.Element, "this.reader.NodeType == XmlNodeType.Element"); string propertyValue = this.reader.GetAttributeEx(XmlConstants.AtomContentSrcAttributeName, XmlConstants.AtomNamespace); if (propertyValue != null) { if (!this.reader.IsEmptyElement) { throw Error.InvalidOperation(Strings.Deserialize_ExpectedEmptyMediaLinkEntryContent); } targetEntry.MediaLinkEntry = true; targetEntry.MediaContentUri = new Uri(propertyValue, UriKind.RelativeOrAbsolute); } else { if (targetEntry.MediaLinkEntry.HasValue && targetEntry.MediaLinkEntry.Value) { throw Error.InvalidOperation(Strings.Deserialize_ContentPlusPropertiesNotAllowed); } targetEntry.MediaLinkEntry = false; propertyValue = this.reader.GetAttributeEx(XmlConstants.AtomTypeAttributeName, XmlConstants.AtomNamespace); if (AtomParser.IsAllowedContentType(propertyValue)) { if (this.reader.IsEmptyElement) { return; } if (ReadChildElement(this.reader, XmlConstants.AtomPropertiesElementName, XmlConstants.DataWebMetadataNamespace)) { this.ReadCurrentProperties(targetEntry.DataValues); } else if (this.reader.NodeType != XmlNodeType.EndElement) { throw Error.InvalidOperation(Strings.Deserialize_NotApplicationXml); } } } }
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); } }