public DatabaseData SetDatabaseAsEdit(DatabaseData srcDatabaseData)
{
if (!databases.ContainsKey(srcDatabaseData.Definition.Path))
{
throw new ApplicationException("Database not open in model");
}
// Make a clone of the source database definition and give it a new name
RrdDb rrdDb = new RrdDb(srcDatabaseData.Definition.Path, true);
databaseDefinition = rrdDb.getRrdDef();
rrdDb.close();
DatabaseData dstDatabaseData = new DatabaseData();
dstDatabaseData.SourceDatabasePath = srcDatabaseData.Definition.Path;
dstDatabaseData.Saved = false;
dstDatabaseData.Definition = databaseDefinition;
dstDatabaseData.Definition.Path = Path.GetFileNameWithoutExtension(databaseDefinition.Path) + "_";
dstDatabaseData.LastUpdated = dstDatabaseData.Definition.getStartDateTime();
dstDatabaseData.LastValue = double.NaN;
DatabaseDirty = true;
EditingDatabaseData = dstDatabaseData;
databases.Add(dstDatabaseData.Definition.Path, dstDatabaseData);
return(dstDatabaseData);
}
public DatabaseData ReloadDatabase(DatabaseData srcDatabase)
{
if (!databases.ContainsKey(srcDatabase.Definition.Path))
{
throw new ApplicationException("Database to reload don't exist");
}
try
{
RrdDb database = new RrdDb(srcDatabase.Definition.Path);
DatabaseData data = new DatabaseData();
data.Saved = true;
data.Definition = database.getRrdDef();
data.LastUpdated = database.getLastUpdateDateTime();
data.LastValue = database.getLastDatasourceValue(database.getDsNames()[0]);
databases[srcDatabase.Definition.Path] = data;
database.close();
return(data);
}
catch (Exception ex)
{
Logger.Error("Fail to add database", ex);
throw;
}
}
public void addDatasource(String sourcePath, String destPath, DsDef newDatasource)
{
if (Util.sameFilePath(sourcePath, destPath))
{
throw new RrdException("Source and destination paths are the same");
}
RrdDb rrdSource = new RrdDb(sourcePath);
RrdDef rrdDef = rrdSource.getRrdDef();
rrdDef.setPath(destPath);
rrdDef.addDatasource(newDatasource);
RrdDb rrdDest = new RrdDb(rrdDef);
rrdSource.copyStateTo(rrdDest);
rrdSource.close();
rrdDest.close();
}
public DatabaseData AddDatabase(string databasePath)
{
if (databases.ContainsKey(databasePath))
{
return(databases[databasePath]);
}
try
{
RrdDb database = new RrdDb(databasePath);
DatabaseData data = new DatabaseData();
data.Saved = true;
data.Definition = database.getRrdDef();
data.LastUpdated = database.getLastUpdateDateTime();
data.LastValue = database.getLastDatasourceValue(database.getDsNames()[0]);
databases.Add(databasePath, data);
database.close();
return(databases[databasePath]);
}
catch (Exception ex)
{
Logger.Error("Fail to add database", ex);
throw;
}
}
public void removeArchive(String sourcePath, String destPath, String consolFun, int steps)
{
if (Util.sameFilePath(sourcePath, destPath))
{
throw new RrdException("Source and destination paths are the same");
}
RrdDb rrdSource = new RrdDb(sourcePath);
RrdDef rrdDef = rrdSource.getRrdDef();
rrdDef.setPath(destPath);
rrdDef.removeArchive(consolFun, steps);
RrdDb rrdDest = new RrdDb(rrdDef);
rrdSource.copyStateTo(rrdDest);
rrdSource.close();
rrdDest.close();
}
public void resizeArchive(String sourcePath, String destPath, String consolFun,
int numSteps, int newRows)
{
if (Util.sameFilePath(sourcePath, destPath))
{
throw new RrdException("Source and destination paths are the same");
}
if (newRows < 2)
{
throw new RrdException("New arcihve size must be at least 2");
}
RrdDb rrdSource = new RrdDb(sourcePath);
RrdDef rrdDef = rrdSource.getRrdDef();
ArcDef arcDef = rrdDef.findArchive(consolFun, numSteps);
if (arcDef.getRows() != newRows)
{
arcDef.setRows(newRows);
rrdDef.setPath(destPath);
RrdDb rrdDest = new RrdDb(rrdDef);
rrdSource.copyStateTo(rrdDest);
rrdDest.close();
}
rrdSource.close();
}
