internal static Bundle Load(XmlReader reader)
{
XElement feed;
var settings = new XmlReaderSettings();
settings.IgnoreComments = true;
settings.IgnoreProcessingInstructions = true;
settings.IgnoreWhitespace = true;
try
{
var internalReader = XmlReader.Create(reader, settings);
feed = XDocument.Load(internalReader, LoadOptions.SetLineInfo).Root;
if (feed.Name != XNamespace.Get(ATOMPUB_NS) + "feed")
{
throw Error.Format("Input data is not an Atom feed", null);
}
}
catch (Exception exc)
{
throw Error.Format("Exception while loading feed: " + exc.Message, null);
}
Bundle result;
try
{
result = new Bundle()
{
Title = SerializationUtil.StringValueOrNull(feed.Element(XATOMNS + XATOM_TITLE)),
LastUpdated = SerializationUtil.InstantOrNull(feed.Element(XATOMNS + XATOM_UPDATED)),
Id = SerializationUtil.UriValueOrNull(feed.Element(XATOMNS + XATOM_ID)),
Links = getLinks(feed.Elements(XATOMNS + XATOM_LINK)),
Tags = TagListParser.ParseTags(feed.Elements(XATOMNS + XATOM_CATEGORY)),
AuthorName = feed.Elements(XATOMNS + XATOM_AUTHOR).Count() == 0 ? null :
SerializationUtil.StringValueOrNull(feed.Element(XATOMNS + XATOM_AUTHOR)
.Element(XATOMNS + XATOM_AUTH_NAME)),
AuthorUri = feed.Elements(XATOMNS + XATOM_AUTHOR).Count() == 0 ? null :
SerializationUtil.StringValueOrNull(feed.Element(XATOMNS + XATOM_AUTHOR)
.Element(XATOMNS + XATOM_AUTH_URI)),
TotalResults = SerializationUtil.IntValueOrNull(feed.Element(XOPENSEARCHNS + XATOM_TOTALRESULTS))
};
}
catch (Exception exc)
{
throw Error.Format("Exception while parsing xml feed attributes: " + exc.Message, null);
}
result.Entries = loadEntries(feed.Elements().Where(elem =>
(elem.Name == XATOMNS + XATOM_ENTRY ||
elem.Name == XTOMBSTONE + XATOM_DELETED_ENTRY)), result);
return(result);
}
private static BundleEntry loadEntry(XElement entry)
{
BundleEntry result;
try
{
if (entry.Name == XTOMBSTONE + XATOM_DELETED_ENTRY)
{
result = new DeletedEntry();
result.Id = SerializationUtil.UriValueOrNull(entry.Attribute(XATOM_DELETED_REF));
}
else
{
XElement content = entry.Element(XATOMNS + XATOM_CONTENT);
var id = SerializationUtil.UriValueOrNull(entry.Element(XATOMNS + XATOM_ID));
if (content != null)
{
var parsed = getContents(content);
if (parsed != null)
{
result = ResourceEntry.Create(parsed);
}
else
{
throw Error.Format("BundleEntry has a content element without content", XmlDomFhirReader.GetLineInfo(content));
}
}
else
{
result = SerializationUtil.CreateResourceEntryFromId(id);
}
result.Id = id;
}
result.Links = getLinks(entry.Elements(XATOMNS + XATOM_LINK));
result.Tags = TagListParser.ParseTags(entry.Elements(XATOMNS + XATOM_CATEGORY));
if (result is DeletedEntry)
{
((DeletedEntry)result).When = SerializationUtil.InstantOrNull(entry.Attribute(XATOM_DELETED_WHEN));
}
else
{
ResourceEntry re = (ResourceEntry)result;
re.Title = SerializationUtil.StringValueOrNull(entry.Element(XATOMNS + XATOM_TITLE));
re.LastUpdated = SerializationUtil.InstantOrNull(entry.Element(XATOMNS + XATOM_UPDATED));
re.Published = SerializationUtil.InstantOrNull(entry.Element(XATOMNS + XATOM_PUBLISHED));
re.AuthorName = entry.Elements(XATOMNS + XATOM_AUTHOR).Count() == 0 ? null :
SerializationUtil.StringValueOrNull(entry.Element(XATOMNS + XATOM_AUTHOR)
.Element(XATOMNS + XATOM_AUTH_NAME));
re.AuthorUri = entry.Elements(XATOMNS + XATOM_AUTHOR).Count() == 0 ? null :
SerializationUtil.StringValueOrNull(entry.Element(XATOMNS + XATOM_AUTHOR)
.Element(XATOMNS + XATOM_AUTH_URI));
}
}
catch (Exception exc)
{
throw Error.Format("Exception while reading entry: " + exc.Message, XmlDomFhirReader.GetLineInfo(entry));
}
return(result);
}
