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());
}
}
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());
}
}
public void process(long newTime, double newValue)
{
Header header = parentDb.getHeader();
long step = header.getStep();
long oldTime = header.getLastUpdateTime();
long startTime = Util.normalize(oldTime, step);
long endTime = startTime + step;
double oldValue = lastValue.get();
double updateValue = calculateUpdateValue(oldTime, oldValue, newTime, newValue);
if (newTime < endTime)
{
accumulate(oldTime, newTime, updateValue);
}
else
{
// should store something
long boundaryTime = Util.normalize(newTime, step);
accumulate(oldTime, boundaryTime, updateValue);
double value = calculateTotal(startTime, boundaryTime);
// how many updates?
long numSteps = (boundaryTime - endTime) / step + 1L;
// ACTION!
parentDb.archive(this, value, numSteps);
// cleanup
nanSeconds.set(0);
accumValue.set(0.0);
accumulate(boundaryTime, newTime, updateValue);
}
}
public Archive(RrdDb parentDb, ArcDef arcDef)
{
bool shouldInitialize = arcDef != null;
this.parentDb = parentDb;
consolFun = new RrdString(this, true); // constant, may be cached
xff = new RrdDouble(this);
steps = new RrdInt(this, true); // constant, may be cached
rows = new RrdInt(this, true); // constant, may be cached
if (shouldInitialize)
{
consolFun.set(arcDef.getConsolFun().Name);
xff.set(arcDef.getXff());
steps.set(arcDef.getSteps());
rows.set(arcDef.getRows());
}
int n = parentDb.getHeader().getDsCount();
states = new ArcState[n];
robins = new Robin[n];
for (int i = 0; i < n; i++)
{
states[i] = new ArcState(this, shouldInitialize);
int numRows = rows.get();
robins[i] = new Robin(this, numRows, shouldInitialize);
}
}
public Archive(RrdDb parentDb, ArcDef arcDef)
{
bool shouldInitialize = arcDef != null;
this.parentDb = parentDb;
consolFun = new RrdString(this, true); // constant, may be cached
xff = new RrdDouble(this);
steps = new RrdInt(this, true); // constant, may be cached
rows = new RrdInt(this, true); // constant, may be cached
if (shouldInitialize)
{
consolFun.set(arcDef.getConsolFun().Name);
xff.set(arcDef.getXff());
steps.set(arcDef.getSteps());
rows.set(arcDef.getRows());
}
int n = parentDb.getHeader().getDsCount();
states = new ArcState[n];
robins = new Robin[n];
for (int i = 0; i < n; i++)
{
states[i] = new ArcState(this, shouldInitialize);
int numRows = rows.get();
robins[i] = new Robin(this, numRows, shouldInitialize);
}
}
//// read from XML
//public Archive(RrdDb parentDb, DataImporter reader, int arcIndex) {
// this(parentDb, new ArcDef(
// reader.getConsolFun(arcIndex), reader.getXff(arcIndex),
// reader.getSteps(arcIndex), reader.getRows(arcIndex)));
// int n = parentDb.getHeader().getDsCount();
// for (int i = 0; i < n; i++) {
// // restore state
// states[i].setAccumValue(reader.getStateAccumValue(arcIndex, i));
// states[i].setNanSteps(reader.getStateNanSteps(arcIndex, i));
// // restore robins
// double[] values = reader.getValues(arcIndex, i);
// robins[i].update(values);
// }
//}
/**
* Returns archive time step in seconds. Archive step is equal to RRD step
* multiplied with the number of archive steps.
*
* @return Archive time step in seconds
* @Thrown in case of I/O error.
*/
public long getArcStep()
{
long step = parentDb.getHeader().getStep();
return(step * steps.get());
}