public async Task <XmlReader> GetReaderAsync() { await this.EnsureBuffer(); XmlReaderWrapper reader = XmlReaderWrapper.CreateFromReader(_buffer.GetReader(0)); int index = 0; reader.ReadStartElement(Rss20Constants.ExtensionWrapperTag); while (reader.IsStartElement()) { if (index == _bufferElementIndex) { break; } ++index; await reader.SkipAsync(); } return(reader); }
private async Task <Workspace> ReadWorkspace(XmlReaderWrapper reader, ServiceDocument document) { Workspace result = CreateWorkspace(document); result.BaseUri = document.BaseUri; if (reader.HasAttributes) { while (reader.MoveToNextAttribute()) { if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs) { result.BaseUri = FeedUtils.CombineXmlBase(result.BaseUri, await reader.GetValueAsync()); } else { string ns = reader.NamespaceURI; string name = reader.LocalName; if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns)) { continue; } string val = await reader.GetValueAsync(); if (!TryParseAttribute(name, ns, val, result, this.Version)) { if (_preserveAttributeExtensions) { result.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), val); } } } } } XmlBuffer buffer = null; XmlDictionaryWriter extWriter = null; await reader.ReadStartElementAsync(); try { while (await reader.IsStartElementAsync()) { if (await reader.IsStartElementAsync(Atom10Constants.TitleTag, Atom10Constants.Atom10Namespace)) { result.Title = await new Atom10FeedFormatter().ReadTextContentFromAsync(reader, "//app:service/app:workspace/atom:title[@type]", _preserveAttributeExtensions); } else if (await reader.IsStartElementAsync(App10Constants.Collection, App10Constants.Namespace)) { result.Collections.Add(ReadCollection(reader, result).Result); } else if (!TryParseElement(reader, result, this.Version)) { if (_preserveElementExtensions) { var tuple = await SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNodeAsync(buffer, extWriter, reader, _maxExtensionSize); buffer = tuple.Item1; extWriter = tuple.Item2; } else { await reader.SkipAsync(); } } } LoadElementExtensions(buffer, extWriter, result); } finally { if (extWriter != null) { extWriter.Close(); } } await reader.ReadEndElementAsync(); return(result); }
private async Task ReadDocumentAsync(XmlReaderWrapper reader) { ServiceDocument result = CreateDocumentInstance(); try { await SyndicationFeedFormatter.MoveToStartElementAsync(reader); bool elementIsEmpty = reader.IsEmptyElement; if (reader.HasAttributes) { while (reader.MoveToNextAttribute()) { if (reader.LocalName == "lang" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs) { result.Language = await reader.GetValueAsync(); } else if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs) { result.BaseUri = new Uri(await reader.GetValueAsync(), UriKind.RelativeOrAbsolute); } else { string ns = reader.NamespaceURI; string name = reader.LocalName; if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns)) { continue; } string val = await reader.GetValueAsync(); if (!TryParseAttribute(name, ns, val, result, this.Version)) { if (_preserveAttributeExtensions) { result.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), val); } } } } } XmlBuffer buffer = null; XmlDictionaryWriter extWriter = null; await reader.ReadStartElementAsync(); if (!elementIsEmpty) { try { while (await reader.IsStartElementAsync()) { if (await reader.IsStartElementAsync(App10Constants.Workspace, App10Constants.Namespace)) { result.Workspaces.Add(ReadWorkspace(reader, result).Result); } else if (!TryParseElement(reader, result, this.Version)) { if (_preserveElementExtensions) { var tuple = await SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNodeAsync(buffer, extWriter, reader, _maxExtensionSize); buffer = tuple.Item1; extWriter = tuple.Item2; } else { await reader.SkipAsync(); } } } LoadElementExtensions(buffer, extWriter, result); } finally { if (extWriter != null) { extWriter.Close(); } } } await reader.ReadEndElementAsync(); } catch (FormatException e) { throw new XmlException(FeedUtils.AddLineInfo(reader, SR.ErrorParsingDocument), e); } catch (ArgumentException e) { new XmlException(FeedUtils.AddLineInfo(reader, SR.ErrorParsingDocument), e); } SetDocument(result); }
private static async Task ReadInlineCategoriesAsync(XmlReaderWrapper reader, InlineCategoriesDocument inlineCategories, Uri baseUri, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int _maxExtensionSize) { inlineCategories.BaseUri = baseUri; if (reader.HasAttributes) { while (reader.MoveToNextAttribute()) { if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs) { inlineCategories.BaseUri = FeedUtils.CombineXmlBase(inlineCategories.BaseUri, await reader.GetValueAsync()); } else if (reader.LocalName == "lang" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs) { inlineCategories.Language = await reader.GetValueAsync(); } else if (reader.LocalName == App10Constants.Fixed && reader.NamespaceURI == string.Empty) { inlineCategories.IsFixed = (reader.Value == "yes"); } else if (reader.LocalName == Atom10Constants.SchemeTag && reader.NamespaceURI == string.Empty) { inlineCategories.Scheme = await reader.GetValueAsync(); } else { string ns = reader.NamespaceURI; string name = reader.LocalName; if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns)) { continue; } string val = await reader.GetValueAsync(); if (!TryParseAttribute(name, ns, val, inlineCategories, version)) { if (preserveAttributeExtensions) { inlineCategories.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), await reader.GetValueAsync()); } } } } } await SyndicationFeedFormatter.MoveToStartElementAsync(reader); bool isEmptyElement = reader.IsEmptyElement; await reader.ReadStartElementAsync(); if (!isEmptyElement) { XmlBuffer buffer = null; XmlDictionaryWriter extWriter = null; try { while (await reader.IsStartElementAsync()) { if (await reader.IsStartElementAsync(Atom10Constants.CategoryTag, Atom10Constants.Atom10Namespace)) { SyndicationCategory category = CreateCategory(inlineCategories); await Atom10FeedFormatter.ReadCategoryAsync(reader, category, version, preserveAttributeExtensions, preserveElementExtensions, _maxExtensionSize); if (category.Scheme == null) { category.Scheme = inlineCategories.Scheme; } inlineCategories.Categories.Add(category); } else if (!TryParseElement(reader, inlineCategories, version)) { if (preserveElementExtensions) { var tuple = await SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNodeAsync(buffer, extWriter, reader, _maxExtensionSize); buffer = tuple.Item1; extWriter = tuple.Item2; } else { await reader.SkipAsync(); } } } LoadElementExtensions(buffer, extWriter, inlineCategories); } finally { if (extWriter != null) { extWriter.Close(); } } await reader.ReadEndElementAsync(); } }