private StatisticsRecord GetStatisticsByQueue(SubscriptionQueueEntry e, MessageStats prevStats)
{
var record = new StatisticsRecord();
var setting = _statisticsSettings.GetSetting(e.Subscription);
if (setting == null)
{
setting = _statisticsSettings.CreateSetting(e.Subscription);
}
record.StatisticsSetting = setting;
record.Since = DateTime.Now;
record.To = record.Since.AddMilliseconds(StatisticsIntervalToMilliseconds(Interval));
record.StatisticsInterval = Interval;
var stats = e.Queue.MessageStats;
var sumSentFunc = new Func <MessageStats, long> (x => x != null ? x.DeliverGet : 0);
var sumPublishFunc = new Func <MessageStats, long> (x => x != null ? x.Publish : 0);
if (stats != null)
{
record.SentCount = GetStatisticValue((int)sumSentFunc(stats), (int)sumSentFunc(prevStats));
record.ReceivedCount = GetStatisticValue((int)sumPublishFunc(stats), (int)sumPublishFunc(prevStats));
record.QueueLength = e.Queue.Messages;
}
return(record);
}
/// <summary>
/// Returns current stat record from <see cref="_statData"/>. It creates new record if necessary.
/// </summary>
/// <returns>Return current statistics record for provided <paramref name="subscription"/>.</returns>
private StatisticsRecord GetCurrentStatRecord(Subscription subscription)
{
var subscriptionId = subscription == null?_statSettings.GetSubscriptionSB() : new Guid(subscription.__PrimaryKey.ToString());
DateTime currentTimestampBucket = GetCurrentTimestampBucket();
Dictionary <Guid?, StatisticsRecord> bucketData;
if (!_statData.TryGetValue(currentTimestampBucket, out bucketData))
{
_statData[currentTimestampBucket] = bucketData = new Dictionary <Guid?, StatisticsRecord>();
}
StatisticsRecord statRecord;
if (!bucketData.TryGetValue(subscriptionId, out statRecord))
{
var statSetting = _statSettings.GetSetting(subscription) ?? _statSettings.CreateSetting(subscription);
bucketData[subscriptionId] = statRecord = new StatisticsRecord()
{
StatisticsSetting = statSetting,
StatisticsInterval = StatisticsInterval.OneSecond,
Since = currentTimestampBucket,
To = currentTimestampBucket.AddSeconds(1),
};
}
return(statRecord);
}