/// <summary>
/// GetBLOB method implmentation
/// </summary>
public override Task <MetadataBLOBPayload> GetBLOB()
{
bool needrawblob = false;
MetadataBLOBPayload result = null;
BLOBPayloadInformations infos = new BLOBPayloadInformations();
if (HasBLOBPayloadCache())
{
infos = GetBLOBPayloadCache();
if (string.IsNullOrEmpty(infos.BLOB))
{
return(null);
}
int oldnumber = infos.Number;
DateTime oldnextupdate = infos.NextUpdate;
result = DeserializeAndValidateBlob(infos);
if ((infos.Number > oldnumber) || (Convert.ToDateTime(infos.NextUpdate) > Convert.ToDateTime(oldnextupdate)))
{
needrawblob = true;
}
}
else
{
return(null);
}
if (needrawblob)
{
if (string.IsNullOrEmpty(infos.BLOB))
{
return(null);
}
SetBLOBPayloadCache(infos);
}
return(Task.FromResult(result));
}
/// <summary>
/// GetBLOB method implementation
/// </summary>
public async Task <MetadataBLOBPayload> GetBLOB()
{
var req = new
{
endpoint = _origin
};
var content = new StringContent(Newtonsoft.Json.JsonConvert.SerializeObject(req), Encoding.UTF8, "application/json");
var response = await _httpClient.PostAsync(_getEndpointsUrl, content);
var result = Newtonsoft.Json.JsonConvert.DeserializeObject <MDSGetEndpointResponse>(await response.Content.ReadAsStringAsync());
var conformanceEndpoints = new List <string>(result.Result);
var combinedBlob = new MetadataBLOBPayload
{
Number = -1,
NextUpdate = "2099-08-07"
};
var entries = new List <MetadataBLOBPayloadEntry>();
foreach (var BLOBUrl in conformanceEndpoints)
{
var rawBlob = await DownloadStringAsync(BLOBUrl);
MetadataBLOBPayload blob = null;
try
{
blob = await DeserializeAndValidateBlob(rawBlob);
}
catch
{
continue;
}
if (string.Compare(blob.NextUpdate, combinedBlob.NextUpdate) < 0)
{
combinedBlob.NextUpdate = blob.NextUpdate;
}
if (combinedBlob.Number < blob.Number)
{
combinedBlob.Number = blob.Number;
}
foreach (var entry in blob.Entries)
{
entries.Add(entry);
}
combinedBlob.JwtAlg = blob.JwtAlg;
}
combinedBlob.Entries = entries.ToArray();
return(combinedBlob);
}
/// <summary>
/// GetMetadataStatement method implementation
/// </summary>
public virtual Task <MetadataStatement> GetMetadataStatement(MetadataBLOBPayload blob, MetadataBLOBPayloadEntry entry)
{
return(Task.FromResult <MetadataStatement>(entry.MetadataStatement));
}
