private static IEnumerable <MetricValue> InternalReadMetricData(Uri uri, X509Certificate2 certificate)
{
var request = WebRequest.Create(uri) as HttpWebRequest;
try
{
// Add Microsoft Azure subscription management Certificate to the request
if (request != null)
{
request.ClientCertificates.Add(certificate);
request.Accept = JsonContentType;
//create the request headers and specify the method required for this type of operation
request.Headers.Add(RdfeHeader, RdfeHeaderValue);
request.ContentType = JsonContentType;
request.Method = "GET";
request.KeepAlive = true;
using (var response = request.GetResponse() as HttpWebResponse)
{
if (response != null &&
response.StatusCode == HttpStatusCode.OK)
{
using (var stream = response.GetResponseStream())
{
if (stream != null)
{
string metric, entity;
GetMetricAndEntityFromUri(uri, out metric, out entity);
var array = JsonSerializerHelper.Deserialize <MetricValue[]>(stream);
var length = array != null ? array.Length : 0;
Trace.WriteLine(string.Format(MetricDataSuccessfullyRetrieved,
length,
metric,
WebUtility.UrlDecode(entity)));
return(array);
}
}
}
}
}
}
catch (Exception ex)
{
Trace.WriteLine(CreateExceptionMessage(uri, ex));
throw;
}
return(null);
}
/// <summary>
/// Reads the checkpoints for event hub partitions from a JSON file in the current directory.
/// </summary>
public static void ReadCheckpoints()
{
if (!File.Exists(filePath))
{
itemList = new List <EventProcessorCheckpointInfo>();
return;
}
using (var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
itemList = JsonSerializerHelper.Deserialize <List <EventProcessorCheckpointInfo> >(stream) ?? new List <EventProcessorCheckpointInfo>();
}
if (itemList == null || itemList.Count == 0)
{
itemList = new List <EventProcessorCheckpointInfo>();
return;
}
foreach (var item in itemList)
{
mapDictionary.Add(string.Format(KeyFormat, item.Namespace, item.EventHub), item);
}
}
private async static Task <IEnumerable <MetricInfo> > InternalGetSupportedMetricsAsync(Uri uri, X509Certificate2 certificate)
{
var request = WebRequest.Create(uri) as HttpWebRequest;
try
{
// Add Microsoft Azure subscription management Certificate to the request
if (request != null)
{
request.ClientCertificates.Add(certificate);
request.Accept = JsonContentType;
//create the request headers and specify the method required for this type of operation
request.Headers.Add(RdfeHeader, RdfeHeaderValue);
request.ContentType = JsonContentType;
request.Method = "GET";
request.KeepAlive = true;
using (var response = await request.GetResponseAsync() as HttpWebResponse)
{
if (response != null &&
response.StatusCode == HttpStatusCode.OK)
{
using (var stream = response.GetResponseStream())
{
if (stream != null)
{
return(JsonSerializerHelper.Deserialize <MetricInfo[]>(stream));
}
}
}
}
}
}
catch
{
// ignored
}
return(null);
}