jrobin-commits

[Tarus B. <ta...@us...>]

Update of /cvsroot/jrobin/src/org/jrobin/demo
In directory sc8-pr-cvs6.sourceforge.net:/tmp/cvs-serv9082/org/jrobin/demo

Modified Files:
	Demo.java MinMax.java Test.java 
Added Files:
	HeartbeatFix.java 
Log Message:
Adding the new 1.5.4 code


Index: Demo.java
===================================================================
RCS file: /cvsroot/jrobin/src/org/jrobin/demo/Demo.java,v
retrieving revision 1.5
retrieving revision 1.6
diff -C2 -d -r1.5 -r1.6
*** Demo.java	25 Nov 2004 12:14:54 -0000	1.5
--- Demo.java	21 Dec 2006 18:02:43 -0000	1.6
***************
*** 1,226 ****
! /* ============================================================
!  * JRobin : Pure java implementation of RRDTool's functionality
!  * ============================================================
!  *
!  * Project Info:  http://www.jrobin.org
!  * Project Lead:  Sasa Markovic (sa...@jr...);
!  *
!  * (C) Copyright 2003, by Sasa Markovic.
!  *
!  * 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.
!  *
!  * Developers:    Sasa Markovic (sa...@jr...)
!  *                Arne Vandamme (cob...@jr...)
!  *
!  * 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.demo;
! 
! import org.jrobin.core.*;
! import org.jrobin.graph.RrdGraph;
! import org.jrobin.graph.RrdGraphDef;
! 
! import java.awt.*;
! import java.io.BufferedOutputStream;
! import java.io.FileOutputStream;
! import java.io.IOException;
! import java.io.PrintWriter;
! import java.util.Random;
! 
! class Demo {
! 	static final long SEED = 1909752002L;
! 	static final Random RANDOM = new Random(SEED);
! 	static final String FILE = "demo";
! 
! 	static final long START = Util.getTimestamp(2003, 4, 1);
! 	static final long END = Util.getTimestamp(2003, 5, 1);
! 	static final int MAX_STEP = 300;
! 
! 	public static void main(String[] args) throws RrdException, IOException {
! 		println("== Starting demo");
! 		RrdDb.setLockMode(RrdDb.NO_LOCKS);
! 		long startMillis = System.currentTimeMillis();
! 		if(args.length > 0) {
! 			println("Setting default backend factory to " + args[0]);
! 			RrdDb.setDefaultFactory(args[0]);
! 		}
! 		long start = START;
! 		long end = END;
! 		String rrdPath = Util.getJRobinDemoPath(FILE + ".rrd");
! 		String xmlPath = Util.getJRobinDemoPath(FILE + ".xml");
! 		String rrdRestoredPath = Util.getJRobinDemoPath(FILE + "_restored.rrd");
! 		String pngPath = Util.getJRobinDemoPath(FILE + ".png");
! 		String jpegPath = Util.getJRobinDemoPath(FILE + ".jpeg");
! 		String gifPath = Util.getJRobinDemoPath(FILE + ".gif");
! 		String logPath = Util.getJRobinDemoPath(FILE + ".log");
! 		PrintWriter log = new PrintWriter(
! 			new BufferedOutputStream(new FileOutputStream(logPath, false))
! 		);
! 
! 		// creation
! 		println("== Creating RRD file " + rrdPath);
! 		RrdDef rrdDef = new RrdDef(rrdPath, start - 1, 300);
! 		rrdDef.addDatasource("sun", "GAUGE", 600, 0, Double.NaN);
! 		rrdDef.addDatasource("shade", "GAUGE", 600, 0, Double.NaN);
! 		rrdDef.addArchive("AVERAGE", 0.5, 1, 600);
! 		rrdDef.addArchive("AVERAGE", 0.5, 6, 700);
! 		rrdDef.addArchive("AVERAGE", 0.5, 24, 775);
! 		rrdDef.addArchive("AVERAGE", 0.5, 288, 797);
! 		rrdDef.addArchive("MAX", 0.5, 1, 600);
! 		rrdDef.addArchive("MAX", 0.5, 6, 700);
! 		rrdDef.addArchive("MAX", 0.5, 24, 775);
! 		rrdDef.addArchive("MAX", 0.5, 288, 797);
! 		println(rrdDef.dump());
! 		log.println(rrdDef.dump());
! 		println("Estimated file size: " + rrdDef.getEstimatedSize());
! 		RrdDb rrdDb = new RrdDb(rrdDef);
! 		println("== RRD file created.");
! 		if(rrdDb.getRrdDef().equals(rrdDef)) {
! 			println("Checking RRD file structure... OK");
! 		}
! 		else {
! 			println("Invalid RRD file created. This is a serious bug, bailing out");
! 			return;
! 		}
! 		rrdDb.close();
! 		println("== RRD file closed.");
! 
! 		// update database
! 		GaugeSource sunSource = new GaugeSource(1200, 20);
! 		GaugeSource shadeSource = new GaugeSource(300, 10);
! 		println("== Simulating one month of RRD file updates with step not larger than " +
! 			MAX_STEP + " seconds (* denotes 1000 updates)");
! 		long t = start; int n = 0;
! 		rrdDb = new RrdDb(rrdPath);
! 		Sample sample = rrdDb.createSample();
! 		while(t <= end + 86400L) {
! 			//rrdDb = new RrdDb(rrdPath);
! 			//Sample sample = rrdDb.createSample();
! 			sample.setTime(t);
! 			sample.setValue("sun", sunSource.getValue());
! 			sample.setValue("shade", shadeSource.getValue());
! 			log.println(sample.dump());
! 			sample.update();
! 			t += RANDOM.nextDouble() * MAX_STEP + 1;
! 			if(((++n) % 1000) == 0) {
! 				System.out.print("*");
! 			};
! 			//rrdDb.close();
! 		}
! 		println("");
! 		println("== Finished. RRD file updated " + n + " times");
! 		println("== Last update time was: " + rrdDb.getLastUpdateTime());
! 		rrdDb.close();
! 
! 		// test read-only access!
! 		rrdDb = new RrdDb(rrdPath, true);
! 		println("File reopen in read-only mode");
! 
! 		// fetch data
! 		println("== Fetching data for the whole month");
! 		FetchRequest request = rrdDb.createFetchRequest("AVERAGE", start, end);
! 		println(request.dump());
! 		log.println(request.dump());
! 		FetchData fetchData = request.fetchData();
! 		println("== Data fetched. " + fetchData.getRowCount() + " points obtained");
! 		println(fetchData.toString());
! 		println("== Dumping fetched data to XML format");
! 		println(fetchData.exportXml());
! 		println("== Fetch completed");
! 
! 		// dump to XML file
! 		println("== Dumping RRD file to XML file " + xmlPath + " (can be restored with RRDTool)");
! 		rrdDb.exportXml(xmlPath);
! 		println("== Creating RRD file " + rrdRestoredPath + " from XML file " + xmlPath);
! 		RrdDb rrdRestoredDb = new RrdDb(rrdRestoredPath, xmlPath);
! 
! 		// close files
! 		println("== Closing both RRD files");
! 		rrdDb.close();
! 		println("== First file closed");
! 		rrdRestoredDb.close();
! 		println("== Second file closed");
! 
! 		// create graph
! 		println("== Creating graph from the second file");
! 		RrdGraphDef gDef = new RrdGraphDef();
! 		gDef.setTimePeriod(start, end);
!         gDef.setTitle("Temperatures in May 2003");
! 		gDef.setVerticalLabel("temperature");
! 		gDef.datasource("sun", rrdRestoredPath, "sun", "AVERAGE");
! 		gDef.datasource("shade", rrdRestoredPath, "shade", "AVERAGE");
! 		gDef.datasource("median", "sun,shade,+,2,/");
! 		gDef.datasource("diff", "sun,shade,-,ABS,-1,*");
! 		gDef.datasource("sine", "TIME," + start + ",-," + (end - start) +
! 			",/,2,PI,*,*,SIN,1000,*");
! 		gDef.line("sun", Color.GREEN, "sun temp");
! 		gDef.line("shade", Color.BLUE, "shade temp");
! 		gDef.line("median", Color.MAGENTA, "median value@L");
! 		gDef.area("diff", Color.YELLOW, "difference@r");
! 		gDef.line("diff", Color.RED, null);
! 		gDef.line("sine", Color.CYAN, "sine function demo@L");
! 		gDef.gprint("sun", "MAX", "maxSun = @3@s");
! 		gDef.gprint("sun", "AVERAGE", "avgSun = @3@S@r");
! 		gDef.gprint("shade", "MAX", "maxShade = @3@S");
! 		gDef.gprint("shade", "AVERAGE", "avgShade = @3@S@r");
! 		// create graph finally
! 		RrdGraph graph = new RrdGraph(gDef);
! 		println("== Graph created");
! 		graph.saveAsPNG(pngPath, 400, 250);
! 		println("== Graph saved as a PNG file " + pngPath);
! 		graph.saveAsJPEG(jpegPath, 400, 250, 0.5F);
! 		println("== Graph saved as a JPEG file " + jpegPath);
! 		graph.saveAsGIF(gifPath, 400, 250);
! 		println("== Graph saved as a GIF file " + gifPath);
! 
! 		// demo ends
! 		log.close();
! 		println("== Demo completed in " +
! 			((System.currentTimeMillis() - startMillis) / 1000.0) +	" sec");
! 	}
! 
! 	static void println(String msg) {
! 		//System.out.println(msg + " " + Util.getLapTime());
! 		System.out.println(msg);
! 	}
! 
! 	static void print(String msg) {
! 		System.out.print(msg);
! 	}
! 
! 	static class GaugeSource {
! 		private double value;
! 		private double step;
! 
! 		GaugeSource(double value, double step) {
! 			this.value = value;
! 			this.step = step;
! 		}
! 
! 		long getValue() {
! 			double oldValue = value;
! 			double increment = RANDOM.nextDouble() * step;
! 			if(RANDOM.nextDouble() > 0.5) {
! 				increment *= -1;
! 			}
! 			value += increment;
! 			if(value <= 0) {
! 				value = 0;
! 			}
! 			return Math.round(oldValue);
! 		}
! 	}
! }
! 
! 
! 
! 
--- 1,251 ----
! /* ============================================================
!  * JRobin : Pure java implementation of RRDTool's functionality
!  * ============================================================
!  *
!  * Project Info:  http://www.jrobin.org
!  * Project Lead:  Sasa Markovic (sa...@jr...);
!  *
!  * (C) Copyright 2003-2005, by Sasa Markovic.
!  *
!  * 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.
!  *
!  * Developers:    Sasa Markovic (sa...@jr...)
!  *
!  *
!  * 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.demo;
! 
! import org.jrobin.core.*;
! import org.jrobin.graph.RrdGraph;
! import org.jrobin.graph.RrdGraphDef;
! 
! import java.awt.*;
! import java.io.BufferedOutputStream;
! import java.io.FileOutputStream;
! import java.io.IOException;
! import java.io.PrintWriter;
! import java.util.Random;
! 
! /**
!  * Simple demo just to check that everything is OK with this library. Creates two files in your
!  * $HOME/jrobin-demo directory: demo.rrd and demo.png.
!  */
! public class Demo {
! 	static final long SEED = 1909752002L;
! 	static final Random RANDOM = new Random(SEED);
! 	static final String FILE = "demo";
! 
! 	static final long START = Util.getTimestamp(2003, 4, 1);
! 	static final long END = Util.getTimestamp(2003, 5, 1);
! 	static final int MAX_STEP = 300;
! 
! 	static final int IMG_WIDTH = 500;
! 	static final int IMG_HEIGHT = 300;
! 
! 	/**
! 	 * <p>To start the demo, use the following command:</p>
! 	 * <pre>
! 	 * java -cp jrobin-{version}.jar org.jrobin.demo.Demo
! 	 * </pre>
! 	 *
! 	 * @param args the name of the backend factory to use (optional)
! 	 * @throws RrdException Thrown in case of JRobin specific error
! 	 * @throws IOException  Thrown
! 	 */
! 	public static void main(String[] args) throws RrdException, IOException {
! 		println("== Starting demo");
! 		long startMillis = System.currentTimeMillis();
! 		if (args.length > 0) {
! 			println("Setting default backend factory to " + args[0]);
! 			RrdDb.setDefaultFactory(args[0]);
! 		}
! 		long start = START;
! 		long end = END;
! 		String rrdPath = Util.getJRobinDemoPath(FILE + ".rrd");
! 		String xmlPath = Util.getJRobinDemoPath(FILE + ".xml");
! 		String rrdRestoredPath = Util.getJRobinDemoPath(FILE + "_restored.rrd");
! 		String imgPath = Util.getJRobinDemoPath(FILE + ".png");
! 		String logPath = Util.getJRobinDemoPath(FILE + ".log");
! 		PrintWriter log = new PrintWriter(new BufferedOutputStream(new FileOutputStream(logPath, false)));
! 		// creation
! 		println("== Creating RRD file " + rrdPath);
! 		RrdDef rrdDef = new RrdDef(rrdPath, start - 1, 300);
! 		rrdDef.addDatasource("sun", "GAUGE", 600, 0, Double.NaN);
! 		rrdDef.addDatasource("shade", "GAUGE", 600, 0, Double.NaN);
! 		rrdDef.addArchive("AVERAGE", 0.5, 1, 600);
! 		rrdDef.addArchive("AVERAGE", 0.5, 6, 700);
! 		rrdDef.addArchive("AVERAGE", 0.5, 24, 775);
! 		rrdDef.addArchive("AVERAGE", 0.5, 288, 797);
! 		rrdDef.addArchive("MAX", 0.5, 1, 600);
! 		rrdDef.addArchive("MAX", 0.5, 6, 700);
! 		rrdDef.addArchive("MAX", 0.5, 24, 775);
! 		rrdDef.addArchive("MAX", 0.5, 288, 797);
! 		println(rrdDef.dump());
! 		log.println(rrdDef.dump());
! 		println("Estimated file size: " + rrdDef.getEstimatedSize());
! 		RrdDb rrdDb = new RrdDb(rrdDef);
! 		println("== RRD file created.");
! 		if (rrdDb.getRrdDef().equals(rrdDef)) {
! 			println("Checking RRD file structure... OK");
! 		}
! 		else {
! 			println("Invalid RRD file created. This is a serious bug, bailing out");
! 			return;
! 		}
! 		rrdDb.close();
! 		println("== RRD file closed.");
! 
! 		// update database
! 		GaugeSource sunSource = new GaugeSource(1200, 20);
! 		GaugeSource shadeSource = new GaugeSource(300, 10);
! 		println("== Simulating one month of RRD file updates with step not larger than " +
! 				MAX_STEP + " seconds (* denotes 1000 updates)");
! 		long t = start;
! 		int n = 0;
! 		//rrdDb = new RrdDb(rrdPath);
! 		//Sample sample = rrdDb.createSample();
! 		while (t <= end + 86400L) {
! 			rrdDb = new RrdDb(rrdPath);
! 			rrdDb.setInfo("T=" + t);
! 			Sample sample = rrdDb.createSample();
! 			sample.setTime(t);
! 			sample.setValue("sun", sunSource.getValue());
! 			sample.setValue("shade", shadeSource.getValue());
! 			log.println(sample.dump());
! 			sample.update();
! 			t += RANDOM.nextDouble() * MAX_STEP + 1;
! 			if (((++n) % 1000) == 0) {
! 				System.out.print("*");
! 			}
! 			rrdDb.close();
! 		}
! 		println("");
! 		println("== Finished. RRD file updated " + n + " times");
! 		//rrdDb.close();
! 
! 		// test read-only access!
! 		rrdDb = new RrdDb(rrdPath, true);
! 		println("File reopen in read-only mode");
! 		println("== Last update time was: " + rrdDb.getLastUpdateTime());
! 		println("== Last info was: " + rrdDb.getInfo());
! 
! 		// fetch data
! 		println("== Fetching data for the whole month");
! 		FetchRequest request = rrdDb.createFetchRequest("AVERAGE", start, end);
! 		println(request.dump());
! 		log.println(request.dump());
! 		FetchData fetchData = request.fetchData();
! 		println("== Data fetched. " + fetchData.getRowCount() + " points obtained");
! 		println(fetchData.toString());
! 		println("== Dumping fetched data to XML format");
! 		println(fetchData.exportXml());
! 		println("== Fetch completed");
! 
! 		// dump to XML file
! 		println("== Dumping RRD file to XML file " + xmlPath + " (can be restored with RRDTool)");
! 		rrdDb.exportXml(xmlPath);
! 		println("== Creating RRD file " + rrdRestoredPath + " from XML file " + xmlPath);
! 		RrdDb rrdRestoredDb = new RrdDb(rrdRestoredPath, xmlPath);
! 
! 		// close files
! 		println("== Closing both RRD files");
! 		rrdDb.close();
! 		println("== First file closed");
! 		rrdRestoredDb.close();
! 		println("== Second file closed");
! 
! 		// create graph
! 		println("Creating graph " + Util.getLapTime());
! 		println("== Creating graph from the second file");
! 		RrdGraphDef gDef = new RrdGraphDef();
! 		gDef.setWidth(IMG_WIDTH);
! 		gDef.setHeight(IMG_HEIGHT);
! 		gDef.setFilename(imgPath);
! 		gDef.setStartTime(start);
! 		gDef.setEndTime(end);
! 		gDef.setTitle("Temperatures in May 2003");
! 		gDef.setVerticalLabel("temperature");
! 		gDef.datasource("sun", rrdRestoredPath, "sun", "AVERAGE");
! 		gDef.datasource("shade", rrdRestoredPath, "shade", "AVERAGE");
! 		gDef.datasource("median", "sun,shade,+,2,/");
! 		gDef.datasource("diff", "sun,shade,-,ABS,-1,*");
! 		gDef.datasource("sine", "TIME," + start + ",-," + (end - start) +
! 				",/,2,PI,*,*,SIN,1000,*");
! 		gDef.line("sun", Color.GREEN, "sun temp");
! 		gDef.line("shade", Color.BLUE, "shade temp");
! 		gDef.line("median", Color.MAGENTA, "median value");
! 		gDef.area("diff", Color.YELLOW, "difference\\r");
! 		gDef.line("diff", Color.RED, null);
! 		gDef.line("sine", Color.CYAN, "sine function demo\\r");
! 		gDef.hrule(2568, Color.GREEN, "hrule");
! 		gDef.vrule((start + 2 * end) / 3, Color.MAGENTA, "vrule\\r");
! 		gDef.gprint("sun", "MAX", "maxSun = %.3f%s");
! 		gDef.gprint("sun", "AVERAGE", "avgSun = %.3f%S\\r");
! 		gDef.gprint("shade", "MAX", "maxShade = %.3f%S");
! 		gDef.gprint("shade", "AVERAGE", "avgShade = %.3f%S\\r");
! 		gDef.print("sun", "MAX", "maxSun = %.3f%s");
! 		gDef.print("sun", "AVERAGE", "avgSun = %.3f%S\\r");
! 		gDef.print("shade", "MAX", "maxShade = %.3f%S");
! 		gDef.print("shade", "AVERAGE", "avgShade = %.3f%S\\r");
! 		gDef.setImageInfo("<img src='%s' width='%d' height = '%d'>");
! 		gDef.setPoolUsed(false);
! 		gDef.setImageFormat("png");
! 		// create graph finally
! 		RrdGraph graph = new RrdGraph(gDef);
! 		println(graph.getRrdGraphInfo().dump());
! 		println("== Graph created " + Util.getLapTime());
! 		// locks info
! 		println("== Locks info ==");
! 		println(RrdSafeFileBackend.getLockInfo());
! 		// demo ends
! 		log.close();
! 		println("== Demo completed in " +
! 				((System.currentTimeMillis() - startMillis) / 1000.0) + " sec");
! 	}
! 
! 	static void println(String msg) {
! 		//System.out.println(msg + " " + Util.getLapTime());
! 		System.out.println(msg);
! 	}
! 
! 	static void print(String msg) {
! 		System.out.print(msg);
! 	}
! 
! 	static class GaugeSource {
! 		private double value;
! 		private double step;
! 
! 		GaugeSource(double value, double step) {
! 			this.value = value;
! 			this.step = step;
! 		}
! 
! 		long getValue() {
! 			double oldValue = value;
! 			double increment = RANDOM.nextDouble() * step;
! 			if (RANDOM.nextDouble() > 0.5) {
! 				increment *= -1;
! 			}
! 			value += increment;
! 			if (value <= 0) {
! 				value = 0;
! 			}
! 			return Math.round(oldValue);
! 		}
! 	}
! }
! 
! 
! 
! 

Index: Test.java
===================================================================
RCS file: /cvsroot/jrobin/src/org/jrobin/demo/Test.java,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -C2 -d -r1.1.1.1 -r1.2
*** Test.java	6 Sep 2005 20:40:55 -0000	1.1.1.1
--- Test.java	21 Dec 2006 18:02:43 -0000	1.2
***************
*** 1,15 ****
  package org.jrobin.demo;
  
! import org.jrobin.core.RrdToolkit;
! import org.jrobin.core.RrdException;
! 
  import java.io.IOException;
  
  class Test {
! 	public static void main(String[] args) throws IOException, RrdException {
! 		String dir = ".";
! 		String[] list = RrdToolkit.getCanonicalPaths(dir, ".rrd", false);
! 		for (String path : list) {
! 			System.out.println(path);
  		}
  	}
--- 1,28 ----
  package org.jrobin.demo;
  
! import java.io.FileReader;
! import java.io.BufferedReader;
  import java.io.IOException;
  
+ 
  class Test {
! 	public static final String LOADAVG_FILE = "/proc/loadavg";
! 
! 	public static void main(String[] args) throws IOException {
! 		BufferedReader r = new BufferedReader(new FileReader(LOADAVG_FILE));
! 		try {
! 			String line = r.readLine();
! 			if (line != null) {
! 				String[] loads = line.split("\\s+");
! 				if (loads.length >= 3) {
! 					String load = loads[0] + " " + loads[1] + " " + loads[2];
! 					System.out.println("LOAD = " + load);
! 					return;
! 				}
! 				System.out.println("Unexpected error while parsing file " + LOADAVG_FILE);
! 			}
! 		}
! 		finally {
! 			r.close();
  		}
  	}

--- NEW FILE: HeartbeatFix.java ---
package org.jrobin.demo;

import org.jrobin.core.RrdToolkit;
import org.jrobin.core.RrdException;
import org.jrobin.core.RrdDb;

import java.io.FileFilter;
import java.io.File;
import java.io.IOException;

public class HeartbeatFix {
	public static void main(String[] args) throws IOException, RrdException {
		if (args.length != 2) {
			System.err.println("SYNTAX: HeartbeatFix <rrd directory> <heartbeat>");
			System.exit(-1);
		}
		File directory = new File(args[0]);
		long heartbeat = Long.parseLong(args[1]);
		File[] files = directory.listFiles(new FileFilter() {
			public boolean accept(File pathname) {
				return pathname.isFile() && pathname.getName().endsWith(".rrd.jrb");
			}
		});
		System.out.println(files.length + " files found");
		for (int i = 0; i < files.length; i++) {
			String path = files[i].getAbsolutePath();
			System.out.print((i + 1) + ": " + path + ": ");
			// fix heartbeat
			RrdToolkit.setDsHeartbeat(files[i].getAbsolutePath(), 0, heartbeat);
			RrdToolkit.setDsHeartbeat(files[i].getAbsolutePath(), 1, heartbeat);
			System.out.print("fixed");
			// check consistency of the file
			RrdDb rrd = new RrdDb(path);
			if (rrd.getRrdDef().getEstimatedSize() == files[i].length() &&
					rrd.getDatasource(0).getHeartbeat() == heartbeat &&
					rrd.getDatasource(1).getHeartbeat() == heartbeat) {
				System.out.println(", verified");
			}
			else {
				System.out.println(", ********** ERROR **********");
			}
			rrd.close();
		}
		System.out.println("FINISHED!");
	}
}

Index: MinMax.java
===================================================================
RCS file: /cvsroot/jrobin/src/org/jrobin/demo/MinMax.java,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -C2 -d -r1.1.1.1 -r1.2
*** MinMax.java	6 Sep 2005 20:40:55 -0000	1.1.1.1
--- MinMax.java	21 Dec 2006 18:02:43 -0000	1.2
***************
*** 3,42 ****
  import org.jrobin.core.*;
  import org.jrobin.graph.*;
  import java.io.*;
  import java.awt.*;
  
  class MinMax {
!     public static void main(String[] args) throws RrdException, IOException {
!         long start = Util.getTime(), end = start + 300 * 300;
!         String rrdFile = Util.getJRobinDemoPath("minmax.rrd");
  		String pngFile = Util.getJRobinDemoPath("minmax.png");
!         // create
!         RrdDef rrdDef = new RrdDef(rrdFile, start - 1, 300);
!         rrdDef.addDatasource("a", "GAUGE", 600, Double.NaN, Double.NaN);
!         rrdDef.addArchive("AVERAGE", 0.5, 1, 300);
!         rrdDef.addArchive("MIN", 0.5, 12, 300);
!         rrdDef.addArchive("MAX", 0.5, 12, 300);
!         RrdDb rrdDb = new RrdDb(rrdDef);
!         // update
!         for(long t = start; t <  end; t += 300) {
!             Sample sample = rrdDb.createSample(t);
!             sample.setValue("a", Math.sin(t / 3000.0) * 50 + 50);
!             sample.update();
!         }
!         // graph
!         RrdGraphDef gDef = new RrdGraphDef();
  		gDef.setFilename(pngFile);
  		gDef.setWidth(450);
  		gDef.setHeight(250);
  		gDef.setImageFormat("png");
!         gDef.setTimeSpan(start, start + 86400);
!         gDef.setTitle("RRDTool's MINMAX.pl demo");
!         gDef.datasource("a", rrdFile, "a", "AVERAGE");
!         gDef.datasource("b", rrdFile, "a", "MIN");
!         gDef.datasource("c", rrdFile, "a", "MAX");
!         gDef.area("a", Color.decode("0xb6e4"), "real");
!         gDef.line("b", Color.decode("0x22e9"), "min");
!         gDef.line("c", Color.decode("0xee22"), "max");
!         new RrdGraph(gDef);
!     }
  }
\ No newline at end of file
--- 3,43 ----
  import org.jrobin.core.*;
  import org.jrobin.graph.*;
+ 
  import java.io.*;
  import java.awt.*;
  
  class MinMax {
! 	public static void main(String[] args) throws RrdException, IOException {
! 		long start = Util.getTime(), end = start + 300 * 300;
! 		String rrdFile = Util.getJRobinDemoPath("minmax.rrd");
  		String pngFile = Util.getJRobinDemoPath("minmax.png");
! 		// create
! 		RrdDef rrdDef = new RrdDef(rrdFile, start - 1, 300);
! 		rrdDef.addDatasource("a", "GAUGE", 600, Double.NaN, Double.NaN);
! 		rrdDef.addArchive("AVERAGE", 0.5, 1, 300);
! 		rrdDef.addArchive("MIN", 0.5, 12, 300);
! 		rrdDef.addArchive("MAX", 0.5, 12, 300);
! 		RrdDb rrdDb = new RrdDb(rrdDef);
! 		// update
! 		for (long t = start; t < end; t += 300) {
! 			Sample sample = rrdDb.createSample(t);
! 			sample.setValue("a", Math.sin(t / 3000.0) * 50 + 50);
! 			sample.update();
! 		}
! 		// graph
! 		RrdGraphDef gDef = new RrdGraphDef();
  		gDef.setFilename(pngFile);
  		gDef.setWidth(450);
  		gDef.setHeight(250);
  		gDef.setImageFormat("png");
! 		gDef.setTimeSpan(start, start + 86400);
! 		gDef.setTitle("RRDTool's MINMAX.pl demo");
! 		gDef.datasource("a", rrdFile, "a", "AVERAGE");
! 		gDef.datasource("b", rrdFile, "a", "MIN");
! 		gDef.datasource("c", rrdFile, "a", "MAX");
! 		gDef.area("a", Color.decode("0xb6e4"), "real");
! 		gDef.line("b", Color.decode("0x22e9"), "min");
! 		gDef.line("c", Color.decode("0xee22"), "max");
! 		new RrdGraph(gDef);
! 	}
  }
\ No newline at end of file