static RrdBackendFactory()
{
RrdFileBackendFactory fileFactory = new RrdFileBackendFactory();
registerFactory(fileFactory);
//RrdMemoryBackendFactory memoryFactory = new RrdMemoryBackendFactory();
//registerFactory(memoryFactory);
//RrdNioBackendFactory nioFactory = new RrdNioBackendFactory();
//registerFactory(nioFactory);
//RrdSafeFileBackendFactory safeFactory = new RrdSafeFileBackendFactory();
//registerFactory(safeFactory);
selectDefaultFactory();
}
static RrdBackendFactory()
{
RrdFileBackendFactory fileFactory = new RrdFileBackendFactory();
registerFactory(fileFactory);
//RrdMemoryBackendFactory memoryFactory = new RrdMemoryBackendFactory();
//registerFactory(memoryFactory);
//RrdNioBackendFactory nioFactory = new RrdNioBackendFactory();
//registerFactory(nioFactory);
//RrdSafeFileBackendFactory safeFactory = new RrdSafeFileBackendFactory();
//registerFactory(safeFactory);
selectDefaultFactory();
}
/**
* <p>Constructor used to create new RRD object from the definition. This RRD object will be backed
* with a storage (backend) of the default type. Initially, storage type defaults to "NIO"
* (RRD bytes will be put in a file on the disk). Default storage type can be changed with a static
* {@link RrdBackendFactory#setDefaultFactory(String)} method call.</p>
* <p/>
* <p>New RRD file structure is specified with an object of class
* {@link RrdDef <b>RrdDef</b>}. The underlying RRD storage is created as soon
* as the constructor returns.</p>
* <p/>
* <p>Typical scenario:</p>
* <p/>
* <pre>
* // create new RRD definition
* RrdDef def = new RrdDef("test.rrd", 300);
* def.addDatasource("input", DsType.DT_COUNTER, 600, 0, Double.NaN);
* def.addDatasource("output", DsType.DT_COUNTER, 600, 0, Double.NaN);
* def.addArchive(ConsolFun.CF_AVERAGE, 0.5, 1, 600);
* def.addArchive(ConsolFun.CF_AVERAGE, 0.5, 6, 700);
* def.addArchive(ConsolFun.CF_AVERAGE, 0.5, 24, 797);
* def.addArchive(ConsolFun.CF_AVERAGE, 0.5, 288, 775);
* def.addArchive(ConsolFun.CF_MAX, 0.5, 1, 600);
* def.addArchive(ConsolFun.CF_MAX, 0.5, 6, 700);
* def.addArchive(ConsolFun.CF_MAX, 0.5, 24, 797);
* def.addArchive(ConsolFun.CF_MAX, 0.5, 288, 775);
* <p/>
* // RRD definition is now completed, create the database!
* RrdDb rrd = new RrdDb(def);
* // new RRD file has been created on your disk
* </pre>
*
* @param rrdDef Object describing the structure of the new RRD file.
* @Thrown in case of I/O error.
*/
public RrdDb(RrdDef rrdDef)
: this(rrdDef, RrdFileBackendFactory.getDefaultFactory())
{
}