public Datasource(RrdDb parentDb, DsDef dsDef)
{
bool shouldInitialize = dsDef != null;
this.parentDb = parentDb;
dsName = new RrdString(this);
dsTypeName = new RrdString(this);
if (!shouldInitialize)
dsType = new DsType(dsTypeName.get());
heartbeat = new RrdLong(this);
minValue = new RrdDouble(this);
maxValue = new RrdDouble(this);
lastValue = new RrdDouble(this);
accumValue = new RrdDouble(this);
nanSeconds = new RrdLong(this);
if (shouldInitialize)
{
dsName.set(dsDef.getDsName());
dsType = dsDef.getDsType();
dsTypeName.set(dsType.Name);
heartbeat.set(dsDef.getHeartbeat());
minValue.set(dsDef.getMinValue());
maxValue.set(dsDef.getMaxValue());
lastValue.set(Double.NaN);
accumValue.set(0.0);
Header header = parentDb.getHeader();
nanSeconds.set(header.getLastUpdateTime() % header.getStep());
}
}
/**
* <p>Returns RRD definition object which can be used to create new RRD
* with the same creation parameters but with no data in it.</p>
* <p/>
* <p>Example:</p>
* <p/>
* <pre>
* RrdDb rrd1 = new RrdDb("original.rrd");
* RrdDef def = rrd1.getRrdDef();
* // fix path
* def.setPath("empty_copy.rrd");
* // create new RRD file
* RrdDb rrd2 = new RrdDb(def);
* </pre>
*
* @return RRD definition.
*/
public RrdDef getRrdDef()
{
lock (sync)
{
// set header
long startTime = header.getLastUpdateTime();
long step = header.getStep();
String path = backend.getPath();
RrdDef rrdDef = new RrdDef(path, startTime, step);
// add Datasources
foreach (Datasource Datasource in Datasources)
{
DsDef dsDef = new DsDef(Datasource.DsName,
Datasource.DsType, Datasource.Heartbeat,
Datasource.MinValue, Datasource.MaxValue);
rrdDef.addDatasource(dsDef);
}
// add archives
foreach (Archive archive in archives)
{
ArcDef arcDef = new ArcDef(archive.getConsolFun(),
archive.getXff(), archive.getSteps(), archive.getRows());
rrdDef.addArchive(arcDef);
}
return(rrdDef);
}
}
public Datasource(RrdDb parentDb, DsDef dsDef)
{
bool shouldInitialize = dsDef != null;
this.parentDb = parentDb;
dsName = new RrdString(this);
dsTypeName = new RrdString(this);
if (!shouldInitialize)
{
dsType = new DsType(dsTypeName.get());
}
heartbeat = new RrdLong(this);
minValue = new RrdDouble(this);
maxValue = new RrdDouble(this);
lastValue = new RrdDouble(this);
accumValue = new RrdDouble(this);
nanSeconds = new RrdLong(this);
if (shouldInitialize)
{
dsName.set(dsDef.getDsName());
dsType = dsDef.getDsType();
dsTypeName.set(dsType.Name);
heartbeat.set(dsDef.getHeartbeat());
minValue.set(dsDef.getMinValue());
maxValue.set(dsDef.getMaxValue());
lastValue.set(Double.NaN);
accumValue.set(0.0);
Header header = parentDb.getHeader();
nanSeconds.set(header.getLastUpdateTime() % header.getStep());
}
}
/**
* Adds single datasource definition represented with object of class <code>DsDef</code>.
* @param dsDef Datasource definition.
*/
public void addDatasource(DsDef dsDef)
{
if (dsDefs.Contains(dsDef))
{
throw new ArgumentException("Datasource already defined: " + dsDef.dump());
}
dsDefs.Add(dsDef);
}
/**
* Checks if two datasource definitions are equal.
* Source definitions are treated as equal if they have the same source name.
* It is not possible to create RRD with two equal archive definitions.
*
* @param obj Archive definition to compare with.
* @return <code>true</code> if archive definitions are equal,
* <code>false</code> otherwise.
*/
public bool equals(Object obj)
{
if (obj.GetType() == typeof(DsDef))
{
DsDef dsObj = (DsDef)obj;
return(DsName.CompareTo(dsObj.DsName) == 0);
}
return(false);
}
void removeDatasource(String dsName)
{
for (int i = 0; i < dsDefs.Count; i++)
{
DsDef dsDef = dsDefs[i];
if (dsDef.getDsName().CompareTo(dsName) == 0)
{
dsDefs.RemoveAt(i);
return;
}
}
throw new ArgumentException("Could not find datasource named '" + dsName + "'");
}
public void UpdateDataSource(string command, DsDef originalDsDef)
{
RrdDbParser parser = new RrdDbParser("");
model.UpdateDataSource(SrcDatabase, parser.parseDef(command), originalDsDef);
}
public void SetDatasourceData(DsDef[] datasources)
{
LoadDataSourceView(datasources);
}
/**
* Adds data source definitions to RRD definition in bulk.
* @param dsDefs Array of data source definition objects.
*/
public void addDatasource(DsDef[] dsDefs)
{
foreach (DsDef dsDef in dsDefs)
{
addDatasource(dsDef);
}
}
/**
* Adds single datasource definition represented with object of class <code>DsDef</code>.
* @param dsDef Datasource definition.
*/
public void addDatasource(DsDef dsDef)
{
if (dsDefs.Contains(dsDef))
{
throw new ArgumentException("Datasource already defined: " + dsDef.dump());
}
dsDefs.Add(dsDef);
}
/**
* <p>Returns RRD definition object which can be used to create new RRD
* with the same creation parameters but with no data in it.</p>
* <p/>
* <p>Example:</p>
* <p/>
* <pre>
* RrdDb rrd1 = new RrdDb("original.rrd");
* RrdDef def = rrd1.getRrdDef();
* // fix path
* def.setPath("empty_copy.rrd");
* // create new RRD file
* RrdDb rrd2 = new RrdDb(def);
* </pre>
*
* @return RRD definition.
*/
public RrdDef getRrdDef()
{
lock (sync)
{
// set header
long startTime = header.getLastUpdateTime();
long step = header.getStep();
String path = backend.getPath();
RrdDef rrdDef = new RrdDef(path, startTime, step);
// add Datasources
foreach (Datasource Datasource in Datasources)
{
DsDef dsDef = new DsDef(Datasource.DsName,
Datasource.DsType, Datasource.Heartbeat,
Datasource.MinValue, Datasource.MaxValue);
rrdDef.addDatasource(dsDef);
}
// add archives
foreach (Archive archive in archives)
{
ArcDef arcDef = new ArcDef(archive.getConsolFun(),
archive.getXff(), archive.getSteps(), archive.getRows());
rrdDef.addArchive(arcDef);
}
return rrdDef;
}
}
public void UpdateDataSource(DatabaseData srcDatabase, DsDef updatedDsDef, DsDef originalDsDef)
{
RrdDb database = null;
try
{
database = new RrdDb(srcDatabase.Definition.Path, false);
Datasource datasource = database.getDatasource(originalDsDef.getDsName());
if (datasource == null)
throw new ArgumentException(updatedDsDef.getDsName() + " datasource don't exist");
if (datasource.DsName != updatedDsDef.DsName)
datasource.setDsName(updatedDsDef.getDsName());
datasource.setDsType(updatedDsDef.getDsType());
datasource.setHeartbeat(updatedDsDef.getHeartbeat());
datasource.setMaxValue(updatedDsDef.getMaxValue(), true);
datasource.setMinValue(updatedDsDef.getMinValue(), true);
}
catch (FileNotFoundException ex)
{
Logger.Error("Update datasource failed", ex);
throw new ApplicationException("Can't update datasource until database saved!", ex);
}
finally
{
if (database != null)
database.close();
}
}
public void AddDataSource(DsDef dsDef)
{
EditingDatabaseData.Definition.addDatasource(dsDef);
DatabaseDirty = true;
}
public bool exactlyEqual(DsDef def)
{
return (DsName.CompareTo(def.DsName) == 0) && dsType.Dt == def.dsType.Dt &&
heartbeat == def.heartbeat && Util.equal(minValue, def.minValue) &&
Util.equal(maxValue, def.maxValue);
}
public bool exactlyEqual(DsDef def)
{
return((DsName.CompareTo(def.DsName) == 0) && dsType.Dt == def.dsType.Dt &&
heartbeat == def.heartbeat && Util.equal(minValue, def.minValue) &&
Util.equal(maxValue, def.maxValue));
}
