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);
}
}
/**
* <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 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);
}
}
/**
* Adds single archive definition represented with object of class <code>ArcDef</code>.
* @param arcDef Archive definition.
* @throws ArgumentException Thrown if archive with the same consolidation function
* and the same number of steps is already added.
*/
public void addArchive(ArcDef arcDef)
{
if (arcDefs.Contains(arcDef))
{
throw new ArgumentException("Archive already defined: " + arcDef.dump());
}
arcDefs.Add(arcDef);
}
/**
* Checks if two archive definitions are equal.
* Archive definitions are considered equal if they have the same number of steps
* and the same consolidation function. 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(ArcDef))
{
ArcDef arcObj = (ArcDef)obj;
return(consolFun.Name.CompareTo(arcObj.consolFun.Name) == 0 && Steps == arcObj.Steps);
}
return(false);
}
/**
* Returns all archive definition objects specified so far.
* @return Array of archive definition objects.
*/
public ArcDef[] getArcDefs()
{
ArcDef[] archives = new ArcDef[arcDefs.Count];
for (var i = 0; i < arcDefs.Count; i++)
{
archives[i] = arcDefs[i];
}
return(archives);
}
void removeArchive(ConsolFun consolFun, int steps)
{
ArcDef arcDef = findArchive(consolFun, steps);
if (!arcDefs.Remove(arcDef))
{
throw new ArgumentException("Could not remove archive " + consolFun + "/" + steps);
}
}
public bool ContainsArchive(ArcDef otherArcDef)
{
foreach (ArcDef arcDef in arcDefs)
{
if (arcDef.getConsolFun().CSType == otherArcDef.getConsolFun().CSType &&
arcDef.getSteps() == otherArcDef.getSteps())
{
return(true);
}
}
return(false);
}
public bool exactlyEqual(ArcDef def)
{
return consolFun.CSType == def.consolFun.CSType && Xff == def.Xff && Steps == def.Steps && Rows == def.Rows;
}
public void UpdateArchive(ArcDef updatedArcDef)
{
var archDef = EditingDatabaseData.Definition.findArchive(updatedArcDef.getConsolFun(), updatedArcDef.getSteps());
archDef.setRows(updatedArcDef.getRows());
DatabaseDirty = true;
}
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 bool exactlyEqual(ArcDef def)
{
return(consolFun.CSType == def.consolFun.CSType && Xff == def.Xff && Steps == def.Steps && Rows == def.Rows);
}
/**
* <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 AddArchive(ArcDef arcDef)
{
EditingDatabaseData.Definition.addArchive(arcDef);
DatabaseDirty = true;
}
public bool ContainsArchive(ArcDef otherArcDef)
{
foreach (ArcDef arcDef in arcDefs)
{
if (arcDef.getConsolFun().CSType == otherArcDef.getConsolFun().CSType
&& arcDef.getSteps() == otherArcDef.getSteps())
return true;
}
return false;
}
/**
* Returns all archive definition objects specified so far.
* @return Array of archive definition objects.
*/
public ArcDef[] getArcDefs()
{
ArcDef[] archives = new ArcDef[arcDefs.Count];
for (var i = 0; i < arcDefs.Count; i++ )
{
archives[i] = arcDefs[i];
}
return archives;
}
/**
* Adds archive definitions to RRD definition in bulk.
* @param arcDefs Array of archive definition objects
* @throws ArgumentException Thrown if RRD definition already contains archive with
* the same consolidation function and the same number of steps.
*/
public void addArchive(ArcDef[] arcDefs)
{
foreach (ArcDef arcDef in arcDefs)
{
addArchive(arcDef);
}
}
/**
* Adds single archive definition represented with object of class <code>ArcDef</code>.
* @param arcDef Archive definition.
* @throws ArgumentException Thrown if archive with the same consolidation function
* and the same number of steps is already added.
*/
public void addArchive(ArcDef arcDef)
{
if (arcDefs.Contains(arcDef))
{
throw new ArgumentException("Archive already defined: " + arcDef.dump());
}
arcDefs.Add(arcDef);
}
