public FetchData GetArchiveData(DatabaseData databaseData, string dataSourceName, ArcDef archiveDefinition)
{
RrdDb database = null;
try
{
database = new RrdDb(databaseData.Definition.getPath(), true);
int datasourceIndex = database.getDsIndex(dataSourceName);
Archive archive = database.getArchive(new ConsolFun(archiveDefinition.getConsolFun().Name), archiveDefinition.Steps);
Robin robin = archive.getRobin(datasourceIndex);
double[] values = robin.getValues();
DateTime archiveStartTime = archive.getStartDateTime();
TimeSpan tick = new TimeSpan(archive.getArcStep() * TimeSpan.TicksPerSecond);
FetchData fetchedData = new FetchData(archive.getArcStep(), archive.getEndTime(), new string[] { dataSourceName });
long[] timestamps = new long[archive.getRows()];
long offset = archive.getStartTime();
for (var i = 0; i < archive.getRows(); i++)
{
timestamps[i] = offset;
offset += archive.getArcStep();
}
fetchedData.setTimestamps(timestamps);
double[][] value = new double[1][];
value[0] = values;
fetchedData.setValues(value);
return(fetchedData);
}
finally
{
if (database != null)
{
database.close();
}
}
}
public FetchData fetchData(FetchRequest request)
{
long arcStep = getArcStep();
long fetchStart = Util.normalize(request.FetchStart, arcStep);
long fetchEnd = Util.normalize(request.FetchEnd, arcStep);
if (fetchEnd < request.FetchEnd)
{
fetchEnd += arcStep;
}
long startTime = getStartTime();
long endTime = getEndTime();
String[] dsToFetch = request.getFilter();
if (dsToFetch == null)
{
dsToFetch = parentDb.getDsNames();
}
int dsCount = dsToFetch.Length;
int ptsCount = (int)((fetchEnd - fetchStart) / arcStep + 1);
long[] timestamps = new long[ptsCount];
double[][] values = new double[dsCount][];
for (int i = 0; i < dsCount; i++)
values[i] = new double[ptsCount];
long matchStartTime = Math.Max(fetchStart, startTime);
long matchEndTime = Math.Min(fetchEnd, endTime);
double[][] robinValues = null;
if (matchStartTime <= matchEndTime)
{
// preload robin values
int matchCount = (int)((matchEndTime - matchStartTime) / arcStep + 1);
int matchStartIndex = (int)((matchStartTime - startTime) / arcStep);
robinValues = new double[dsCount][];
for (int i = 0; i < dsCount; i++)
{
int dsIndex = parentDb.getDsIndex(dsToFetch[i]);
robinValues[i] = robins[dsIndex].getValues(matchStartIndex, matchCount);
}
}
for (int ptIndex = 0; ptIndex < ptsCount; ptIndex++)
{
long time = fetchStart + ptIndex * arcStep;
timestamps[ptIndex] = time;
for (int i = 0; i < dsCount; i++)
{
double value = Double.NaN;
if (time >= matchStartTime && time <= matchEndTime)
{
// inbound time
int robinValueIndex = (int)((time - matchStartTime) / arcStep);
Debug.Assert(robinValues != null);
value = robinValues[i][robinValueIndex];
}
values[i][ptIndex] = value;
}
}
FetchData fetchData = new FetchData(steps.get(),endTime, parentDb.getDsNames());
fetchData.setTimestamps(timestamps);
fetchData.setValues(values);
return fetchData;
}
public FetchData GetArchiveData(DatabaseData databaseData, string dataSourceName, ArcDef archiveDefinition)
{
RrdDb database = null;
try
{
database = new RrdDb(databaseData.Definition.getPath(), true);
int datasourceIndex = database.getDsIndex(dataSourceName);
Archive archive = database.getArchive(new ConsolFun(archiveDefinition.getConsolFun().Name), archiveDefinition.Steps);
Robin robin = archive.getRobin(datasourceIndex);
double[] values = robin.getValues();
DateTime archiveStartTime = archive.getStartDateTime();
TimeSpan tick = new TimeSpan(archive.getArcStep() * TimeSpan.TicksPerSecond);
FetchData fetchedData = new FetchData(archive.getArcStep(), archive.getEndTime(), new string[] { dataSourceName });
long[] timestamps = new long[archive.getRows()];
long offset = archive.getStartTime();
for (var i = 0; i < archive.getRows(); i++)
{
timestamps[i] = offset;
offset += archive.getArcStep();
}
fetchedData.setTimestamps(timestamps);
double[][] value = new double[1][];
value[0] = values;
fetchedData.setValues(value);
return fetchedData;
}
finally
{
if (database != null)
database.close();
}
}
