private static async Task <string> BuildAtomFeed(
DateTimeOffset lastUpdate,
PagedQueryable <ParcelSyndicationQueryResult> pagedParcels,
IOptions <ResponseOptions> responseOptions,
IConfiguration configuration)
{
var sw = new StringWriterWithEncoding(Encoding.UTF8);
using (var xmlWriter = XmlWriter.Create(sw, new XmlWriterSettings {
Async = true, Indent = true, Encoding = sw.Encoding
}))
{
var formatter = new AtomFormatter(null, xmlWriter.Settings)
{
UseCDATA = true
};
var writer = new AtomFeedWriter(xmlWriter, null, formatter);
var syndicationConfiguration = configuration.GetSection("Syndication");
var atomConfiguration = AtomFeedConfigurationBuilder.CreateFrom(syndicationConfiguration, lastUpdate);
await writer.WriteDefaultMetadata(atomConfiguration);
var parcels = pagedParcels.Items.ToList();
var nextFrom = parcels.Any()
? parcels.Max(x => x.Position) + 1
: (long?)null;
var nextUri = BuildNextSyncUri(pagedParcels.PaginationInfo.Limit, nextFrom, syndicationConfiguration["NextUri"]);
if (nextUri != null)
{
await writer.Write(new SyndicationLink(nextUri, "next"));
}
foreach (var parcel in pagedParcels.Items)
{
await writer.WriteParcel(responseOptions, formatter, syndicationConfiguration["Category"], parcel);
}
xmlWriter.Flush();
}
return(sw.ToString());
}
private static async Task <string> BuildAtomFeed(
PagedQueryable <ParcelSyndicationQueryResult> pagedParcels,
IOptions <ResponseOptions> responseOptions,
IConfiguration configuration)
{
var sw = new StringWriterWithEncoding(Encoding.UTF8);
using (var xmlWriter = XmlWriter.Create(sw, new XmlWriterSettings {
Async = true, Indent = true, Encoding = sw.Encoding
}))
{
var formatter = new AtomFormatter(null, xmlWriter.Settings)
{
UseCDATA = true
};
var writer = new AtomFeedWriter(xmlWriter, null, formatter);
var syndicationConfiguration = configuration.GetSection("Syndication");
await writer.WriteDefaultMetadata(
syndicationConfiguration["Id"],
syndicationConfiguration["Title"],
Assembly.GetEntryAssembly().GetName().Version.ToString(),
new Uri(syndicationConfiguration["Self"]),
syndicationConfiguration.GetSection("Related").GetChildren().Select(c => c.Value).ToArray());
var nextUri = BuildVolgendeUri(pagedParcels.PaginationInfo, syndicationConfiguration["NextUri"]);
if (nextUri != null)
{
await writer.Write(new SyndicationLink(nextUri, "next"));
}
foreach (var parcel in pagedParcels.Items)
{
await writer.WriteParcel(responseOptions, formatter, syndicationConfiguration["Category"], parcel);
}
xmlWriter.Flush();
}
return(sw.ToString());
}