Package org.jrobin.core

Source Code of org.jrobin.core.RrdToolReader

/* ============================================================
* JRobin : Pure java implementation of RRDTool's functionality
* ============================================================
*
* Project Info:  http://www.jrobin.org
* Project Lead:  Sasa Markovic (saxon@jrobin.org);
*
* (C) Copyright 2003-2005, by Sasa Markovic.
*
* Developers:    Sasa Markovic (saxon@jrobin.org)
*
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
package org.jrobin.core;

import org.jrobin.core.jrrd.RRDatabase;

import java.io.IOException;

class RrdToolReader extends DataImporter {
  private RRDatabase rrd;

  RrdToolReader(String rrdPath) throws IOException {
    rrd = new RRDatabase(rrdPath);
  }

  String getVersion() {
    return rrd.getHeader().getVersion();
  }

  long getLastUpdateTime() {
    return Util.getTimestamp(rrd.getLastUpdate());
  }

  long getStep() {
    return rrd.getHeader().getPDPStep();
  }

  int getDsCount() {
    return rrd.getHeader().getDSCount();
  }

  int getArcCount() throws RrdException, IOException {
    return rrd.getNumArchives();
  }

  String getDsName(int dsIndex) {
    return rrd.getDataSource(dsIndex).getName();
  }

  String getDsType(int dsIndex) {
    return rrd.getDataSource(dsIndex).getType().toString();
  }

  long getHeartbeat(int dsIndex) {
    return rrd.getDataSource(dsIndex).getMinimumHeartbeat();
  }

  double getMinValue(int dsIndex) {
    return rrd.getDataSource(dsIndex).getMinimum();
  }

  double getMaxValue(int dsIndex) {
    return rrd.getDataSource(dsIndex).getMaximum();
  }

  double getLastValue(int dsIndex) {
    String valueStr = rrd.getDataSource(dsIndex).getPDPStatusBlock().getLastReading();
    return Util.parseDouble(valueStr);
  }

  double getAccumValue(int dsIndex) {
    return rrd.getDataSource(dsIndex).getPDPStatusBlock().getValue();
  }

  long getNanSeconds(int dsIndex) {
    return rrd.getDataSource(dsIndex).getPDPStatusBlock().getUnknownSeconds();
  }

  String getConsolFun(int arcIndex) {
    return rrd.getArchive(arcIndex).getType().toString();
  }

  double getXff(int arcIndex) {
    return rrd.getArchive(arcIndex).getXff();
  }

  int getSteps(int arcIndex) {
    return rrd.getArchive(arcIndex).getPdpCount();
  }

  int getRows(int arcIndex) throws RrdException, IOException {
    return rrd.getArchive(arcIndex).getRowCount();
  }

  double getStateAccumValue(int arcIndex, int dsIndex) throws RrdException, IOException {
    return rrd.getArchive(arcIndex).getCDPStatusBlock(dsIndex).getValue();
  }

  int getStateNanSteps(int arcIndex, int dsIndex) throws RrdException, IOException {
    return rrd.getArchive(arcIndex).getCDPStatusBlock(dsIndex).getUnknownDatapoints();
  }

  double[] getValues(int arcIndex, int dsIndex) throws RrdException, IOException {
    return rrd.getArchive(arcIndex).getValues()[dsIndex];
  }

  void release() throws IOException {
    if (rrd != null) {
      rrd.close();
      rrd = null;
    }
  }

  protected void finalize() throws Throwable {
    super.finalize();
    release();
  }
}
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