/// <summary>
///
/// </summary>
/// <param name="path"></param>
/// <param name="readOnly"></param>
public RrdDb(string path, bool readOnly)
{
FileInfo rrdFile = new FileInfo(path);
if (!rrdFile.Exists)
{
throw new IOException("Could not open file " + path + " [non existent]");
}
try
{
InitializeSetup(path, RrdFile.MODE_RESTORE, readOnly);
// restore header
header = new Header(this);
// restore datasources
int dsCount = header.DsCount;
datasources = new Datasource[dsCount];
for (int i = 0; i < dsCount; i++)
{
datasources[i] = new Datasource(this);
}
// restore archives
int arcCount = header.ArcCount;
archives = new Archive[arcCount];
for (int i = 0; i < arcCount; i++)
{
archives[i] = new Archive(this);
}
FinalizeSetup();
}
catch (Exception e)
{
throw new RrdException(e);
}
}
internal void Archive(Datasource datasource, double data, long numUpdates)
{
int dsIndex = GetDsIndex(datasource.DsName);
for (int i = 0; i < archives.Length; i++)
{
archives[i].archive(dsIndex, data, numUpdates);
}
}
/// <summary>
///
/// </summary>
/// <param name="other"></param>
public void CopyStateTo(IRrdUpdatable other)
{
if (!(other is Datasource))
{
throw new RrdException("Cannot copy Datasource object to " + other.ToString());
}
Datasource datasource = (Datasource)other;
if (!datasource.dsName.Get().Equals(dsName.Get()))
{
throw new RrdException("Incomaptible datasource names");
}
if (!datasource.dsType.Get().Equals(dsType.Get()))
{
throw new RrdException("Incomaptible datasource types");
}
datasource.lastValue.Set(lastValue.Get());
datasource.nanSeconds.Set(nanSeconds.Get());
datasource.accumValue.Set(accumValue.Get());
}
/// <summary>
///
/// </summary>
/// <param name="rrdDef"></param>
public RrdDb(RrdDef rrdDef)
{
rrdDef.Validate();
InitializeSetup(rrdDef.Path, RrdFile.MODE_CREATE, false);
// create header
header = new Header(this, rrdDef);
// create datasources
DsDef[] dsDefs = rrdDef.DsDefs;
datasources = new Datasource[dsDefs.Length];
for (int i = 0; i < dsDefs.Length; i++)
{
datasources[i] = new Datasource(this, dsDefs[i]);
}
// create archives
ArcDef[] arcDefs = rrdDef.ArcDefs;
archives = new Archive[arcDefs.Length];
for (int i = 0; i < arcDefs.Length; i++)
{
archives[i] = new Archive(this, arcDefs[i]);
}
// finalize
FinalizeSetup();
Util.Debug(rrdDef.RrdToolCommand);
}
