private static async Task ApplyV3SessionProperties(
IUpstreamEdFiApiInvoker invoker,
HttpRequestHeaders headers,
V3SectionReference source,
V2SectionReference destination,
short schoolYearFromRoute)
{
var termDescriptorLookupKey = new TermDescriptorKey(source.SchoolId, source.SchoolYear, source.SessionName);
await Task.Run(() =>
{
var value = _termDescriptorByNaturalKey.GetOrAdd(termDescriptorLookupKey, k =>
GetTermDescriptorValueFromV3Session(invoker, headers, k, schoolYearFromRoute)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult());
// Is the retrieved value stale?
if ((DateTime.Now - value.RetrievedDateTime).TotalSeconds > _cacheDurationSeconds.Value)
{
// Refresh the values
TermDescriptorValue ignored;
_termDescriptorByNaturalKey.TryRemove(termDescriptorLookupKey, out ignored);
value = _termDescriptorByNaturalKey.GetOrAdd(termDescriptorLookupKey, k =>
GetTermDescriptorValueFromV3Session(invoker, headers, k, schoolYearFromRoute)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult());
}
destination.TermDescriptor = value.TermDescriptor;
})
.ConfigureAwait(false);
}
private static async Task <TermDescriptorValue> GetTermDescriptorValueFromV3Session(
IUpstreamEdFiApiInvoker invoker,
HttpRequestHeaders headers,
TermDescriptorKey key,
short schoolYearFromRoute)
{
// Get the referenced section by natural key
var response = await invoker.Get(
typeof(V3Session),
headers,
new[]
{
new KeyValuePair <string, string>("schoolId", key.SchoolId.ToString()),
new KeyValuePair <string, string>("schoolYear", key.SchoolYear.ToString()),
new KeyValuePair <string, string>("sessionName", key.SessionName),
},
schoolYearFromRoute)
.ConfigureAwait(false);
StreamReader sr = new StreamReader(response.ResponseStream);
string responseContent = await sr.ReadToEndAsync().ConfigureAwait(false);
if (response.Status == HttpStatusCode.OK)
{
// Get the Session-derived members
var v3Session = JsonConvert.DeserializeObject <V3Session[]>(responseContent, _serializerSettings)
.SingleOrDefault();
if (v3Session == null)
{
throw new Exception(
$"Session with schoolId '{key.SchoolId}', schoolYear '{key.SchoolYear}' and sessionName '{key.SessionName}' was not found in host. Unable to support termDescriptor conversion for v2.5 API client.");
}
return(new TermDescriptorValue(
VersionConverter.DescriptorV3ToV2("TermDescriptor", v3Session.TermDescriptor),
DateTime.Now));
}
throw new Exception(
$"Error obtaining V3 Session resource during mapping of TermDescriptor: {response.Status} - {responseContent}");
}
