Examples of org.jrobin.core.Datasource

org.jrobin.core.Datasource
Class to represent single datasource within RRD. Each datasource object holds the following information: datasource definition (once set, never changed) and datasource state variables (changed whenever RRD gets updated).

Normally, you don't need to manipluate Datasource objects directly, it's up to JRobin framework to do it for you. @author Sasa Markovic

    RrdDb rrdDb = getRrdDbReference(rrdPath, xmlPath);
    try {
      if (check) {
        int dsCount = rrdDb.getHeader().getDsCount();
        for (int i = 0; i < dsCount; i++) {
          Datasource ds = rrdDb.getDatasource(i);
          double minValue = ds.getMinValue();
          double maxValue = ds.getMaxValue();
          // this will perform range check
          ds.setMinMaxValue(minValue, maxValue, true);
        }
      }
      return rrdPath;
    }
    finally {

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    if (tokens.length != 2) {
      throw new RrdException("Invalid suntax in: " + heartbeatStr);
    }
    String dsName = tokens[0];
    long heartbeat = Long.parseLong(tokens[1]);
    Datasource ds = rrd.getDatasource(dsName);
    ds.setHeartbeat(heartbeat);
  }

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    if (tokens.length != 2) {
      throw new RrdException("Invalid suntax in: " + minimumStr);
    }
    String dsName = tokens[0];
    double minValue = Util.parseDouble(tokens[1]);
    Datasource ds = rrd.getDatasource(dsName);
    ds.setMinValue(minValue, false);
  }

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    if (tokens.length != 2) {
      throw new RrdException("Invalid suntax in: " + maximumStr);
    }
    String dsName = tokens[0];
    double maxValue = Util.parseDouble(tokens[1]);
    Datasource ds = rrd.getDatasource(dsName);
    ds.setMaxValue(maxValue, false);
  }

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    String[] tokens = new ColonSplitter(nameStr).split();
    if (tokens.length != 2) {
      throw new RrdException("Invalid suntax in: " + nameStr);
    }
    String oldName = tokens[0], newName = tokens[1];
    Datasource ds = rrd.getDatasource(oldName);
    ds.setDsName(newName);
  }

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    if (tokens.length != 2) {
      throw new RrdException("Invalid suntax in: " + typeStr);
    }
    String dsName = tokens[0];
    String dsType = tokens[1];
    Datasource ds = rrd.getDatasource(dsName);
    ds.setDsType(dsType);
  }

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  private void dump(RrdDb rrd) throws IOException {
    StringBuffer line = new StringBuffer();
    int n = rrd.getDsCount();
    for (int i = 0; i < n; i++) {
      Datasource ds = rrd.getDatasource(i);
      line.append("DS[");
      line.append(ds.getDsName());
      line.append("] typ: ");
      line.append(ds.getDsType());
      while (line.length() < 24) {
        line.append(' ');
      }
      line.append("hbt: ");
      line.append(ds.getHeartbeat());
      while (line.length() < 40) {
        line.append(' ');
      }
      line.append("min: ");
      line.append(String.format("%-11f", ds.getMinValue()));
      line.append("max: ");
      line.append(String.format("%-11f", ds.getMaxValue()));
      println(line.toString());
      line.setLength(0);
    }
  }

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      values = null;
      if (dsIndex >= 0) {
        try {
          RrdDb rrd = new RrdDb(file.getAbsolutePath(), true);
          try {
            Datasource ds = rrd.getDatasource(dsIndex);
            values = new Object[] {
                ds.getDsName(),
                ds.getDsType(),
                "" + ds.getHeartbeat(),
                InspectorModel.formatDouble(ds.getMinValue()),
                InspectorModel.formatDouble(ds.getMaxValue()),
                InspectorModel.formatDouble(ds.getLastValue()),
                InspectorModel.formatDouble(ds.getAccumValue()),
                "" + ds.getNanSeconds()
            };
          }
          finally {
            rrd.close();
          }

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Related Classes of org.jrobin.core.Datasource

org.jrobin.cmd.RrdInfoCmd

org.jrobin.cmd.RrdRestoreCmd

org.jrobin.cmd.RrdTuneCmd

org.jrobin.inspector.DatasourceTableModel

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