/// <summary>
/// Unmarshaller the response from the service to the response class.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public override AmazonWebServiceResponse Unmarshall(XmlUnmarshallerContext context)
{
GetMetricDataResponse response = new GetMetricDataResponse();
context.Read();
int targetDepth = context.CurrentDepth;
while (context.ReadAtDepth(targetDepth))
{
if (context.IsStartElement)
{
if (context.TestExpression("GetMetricDataResult", 2))
{
UnmarshallResult(context, response);
continue;
}
if (context.TestExpression("ResponseMetadata", 2))
{
response.ResponseMetadata = ResponseMetadataUnmarshaller.Instance.Unmarshall(context);
}
}
}
return(response);
}
public override void Invoke(AWSCredentials creds, RegionEndpoint region, int maxItems)
{
AmazonCloudWatchConfig config = new AmazonCloudWatchConfig();
config.RegionEndpoint = region;
ConfigureClient(config);
AmazonCloudWatchClient client = new AmazonCloudWatchClient(creds, config);
GetMetricDataResponse resp = new GetMetricDataResponse();
do
{
GetMetricDataRequest req = new GetMetricDataRequest
{
NextToken = resp.NextToken
,
MaxDatapoints = maxItems
};
resp = client.GetMetricData(req);
CheckError(resp.HttpStatusCode, "200");
foreach (var obj in resp.Messages)
{
AddObject(obj);
}
foreach (var obj in resp.MetricDataResults)
{
AddObject(obj);
}
}while (!string.IsNullOrEmpty(resp.NextToken));
}
/// <summary>
/// Unmarshaller the response from the service to the response class.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public override AmazonWebServiceResponse Unmarshall(JsonUnmarshallerContext context)
{
GetMetricDataResponse response = new GetMetricDataResponse();
context.Read();
int targetDepth = context.CurrentDepth;
while (context.ReadAtDepth(targetDepth))
{
if (context.TestExpression("MetricResults", targetDepth))
{
var unmarshaller = new ListUnmarshaller <HistoricalMetricResult, HistoricalMetricResultUnmarshaller>(HistoricalMetricResultUnmarshaller.Instance);
response.MetricResults = unmarshaller.Unmarshall(context);
continue;
}
if (context.TestExpression("NextToken", targetDepth))
{
var unmarshaller = StringUnmarshaller.Instance;
response.NextToken = unmarshaller.Unmarshall(context);
continue;
}
}
return(response);
}
private static void UnmarshallResult(XmlUnmarshallerContext context, GetMetricDataResponse response)
{
int originalDepth = context.CurrentDepth;
int targetDepth = originalDepth + 1;
if (context.IsStartOfDocument)
{
targetDepth += 2;
}
while (context.ReadAtDepth(originalDepth))
{
if (context.IsStartElement || context.IsAttribute)
{
if (context.TestExpression("MetricDataResults/member", targetDepth))
{
var unmarshaller = MetricDataResultUnmarshaller.Instance;
var item = unmarshaller.Unmarshall(context);
response.MetricDataResults.Add(item);
continue;
}
if (context.TestExpression("NextToken", targetDepth))
{
var unmarshaller = StringUnmarshaller.Instance;
response.NextToken = unmarshaller.Unmarshall(context);
continue;
}
}
}
return;
}
private static double GetMetricCount(GetMetricDataResponse resp)
{
double result = 0;
if (resp.MetricDataResults.Any())
{
var values = resp.MetricDataResults[0].Values;
if (values.Any())
{
result = values[0];
}
}
return(result);
}
private static async Task ReadMetrics(Program program, int noOfDays = DEFAULT_NUMBER_OF_DAYS_TO_READ)
{
Console.WriteLine(">>>> Reading metrics");
List <(string, string)> metrics = new List <(string, string)> {
("metricRequestMetricRead", METRIC_METRIC_READ),
("metricRequestClientBlocked", METRIC_CLIENT_BLOCKED),
("metricRequestReportRequestCancelledAll", METRIC_REPORT_REQUEST_CANCELLED_ALL),
("metricRequestReportRequestCancelledDailyLimit", METRIC_REPORT_REQUEST_CANCELLED_DAILY_LIMIT),
("metricRequestReportRequestCancelledErrorRate", METRIC_REPORT_REQUEST_CANCELLED_ERROR_RATE),
("metricRequestReportRequestAvoided", METRIC_REPORT_REQUEST_AVOIDED),
("metricRequestReportRequest", METRIC_REPORT_REQUEST),
("metricRequestSegmentWritten", METRIC_SEGMENT_WRITTEN),
("metricRequest400", METRIC_HTTP_400),
("metricRequest401", METRIC_HTTP_401),
("metricRequest403", METRIC_HTTP_403),
("metricRequest429FailedRequestsTooHigh", METRIC_HTTP_429_FAILED_REQUESTS_TOO_HIGH),
("metricRequest429Other", METRIC_HTTP_429_OTHER),
("metricRequest429RequestsPerDay", METRIC_HTTP_429_REQUESTS_PER_DAY),
("metricRequest429RequestsPerUserPer100s", METRIC_HTTP_429_REQUESTS_PER_USER_PER_100s),
("metricRequest429RequestsPerViewPerDay", METRIC_HTTP_429_REQUESTS_PER_VIEW_PER_DAY),
("metricRequest429TooManyConcurrentConnections", METRIC_HTTP_429_TOO_MANY_CONCURRENT_CONNECTIONS),
("metricRequest500", METRIC_HTTP_500),
("metricRequest502", METRIC_HTTP_502),
("metricRequest503Other", METRIC_HTTP_503_OTHER),
("metricRequest503Unavailable", METRIC_HTTP_503_UNAVAILABLE),
("metricRequestOther", METRIC_HTTP_OTHER)
};
TimeZoneInfo?pst = GetTimeZoneInfo(PACIFIC_STANDARD_TIME);
if (pst != null)
{
Console.WriteLine($"TimeZone: {pst}");
Console.WriteLine($"REPORT_REQUEST_QUOTA_OFFSET_MINUTES: {REPORT_REQUEST_QUOTA_OFFSET_MINUTES}");
var currentDateInTimeZone = CurrentDateInTimeZone(pst);
List <(string startTime, List <double> metrics)> metricsByDay = new List <(string, List <double>)>();
for (int i = 0; i < noOfDays; i++)
{
DateTime currentDateInPST = currentDateInTimeZone.AddDays(-i).AddMinutes(REPORT_REQUEST_QUOTA_OFFSET_MINUTES);
DateTime nextDateInPST = currentDateInPST.AddDays(1).AddSeconds(-1);
DateTime startTimeUTC = ConvertDateToUTC(currentDateInPST, pst);
DateTime endTimeUTC = ConvertDateToUTC(nextDateInPST, pst);
Console.WriteLine();
Console.WriteLine($"Getting metrics from [{startTimeUTC}] to [{endTimeUTC}]");
Console.WriteLine();
List <double> metricsForDay = new List <double>();
foreach ((string metricQueryId, string metricName) in metrics)
{
// TODO - Inefficient to send a single metric request per metric
GetMetricDataResponse resp = await program.GetMetricsAsync(startTimeUTC, endTimeUTC, metricQueryId, metricName);
double metricCount = GetMetricCount(resp);
Console.WriteLine($"Metric [{metricName}] count is [{metricCount}]");
metricsForDay.Add(metricCount);
}
metricsByDay.Add((startTimeUTC.ToShortDateString(), metricsForDay));
}
Console.WriteLine();
Console.WriteLine("Metrics in CSV format (in same date order):");
foreach (var item in metricsByDay)
{
Console.WriteLine($"{item.startTime},{String.Join(",", item.metrics)}");
}
Console.WriteLine();
}
else
{
Console.WriteLine("Oops, no timezone");
}
}
