public void CreateOpen()
{
var path = Path.GetTempFileName();
DatapointDatabase.Create(path, 0.5f, DownsamplingMethod.Sum,
new RetentionPolicy {
{ TimeSpan.FromSeconds(1), TimeSpan.FromMinutes(1) },
{ TimeSpan.FromSeconds(10), TimeSpan.FromMinutes(5) },
{ TimeSpan.FromSeconds(20), TimeSpan.FromMinutes(20) }
});
var database = DatapointDatabase.Open(path);
Assert.AreEqual(0.5f, database.DownsamplingFactor);
Assert.AreEqual(DownsamplingMethod.Sum, database.DownsamplingMethod);
Assert.AreEqual(3, database.Archives.Count);
Assert.AreEqual((TimeSpan)database.Archives[0].Retention.Precision, TimeSpan.FromSeconds(1));
Assert.AreEqual((TimeSpan)database.Archives[0].Retention.History, TimeSpan.FromMinutes(1));
Assert.AreEqual((TimeSpan)database.Archives[1].Retention.Precision, TimeSpan.FromSeconds(10));
Assert.AreEqual((TimeSpan)database.Archives[1].Retention.History, TimeSpan.FromMinutes(5));
Assert.AreEqual((TimeSpan)database.Archives[2].Retention.Precision, TimeSpan.FromSeconds(20));
Assert.AreEqual((TimeSpan)database.Archives[2].Retention.History, TimeSpan.FromMinutes(20));
}
public Metric ReadMetric(string metricName, DateTime @from, DateTime until, TimeSpan?precision = null)
{
var databaseFilePath = GetDatabaseFiles(metricName).FirstOrDefault();
if (databaseFilePath == null)
{
return(null);
}
var database = DatapointDatabase.Open(databaseFilePath.FullName);
var series = database.ReadSeries(from, until, precision);
return(new Metric(metricName, series));
}