jrobin-commits

[<sa...@us...>]

Update of /cvsroot/jrobin/src/jrobin/demo
In directory sc8-pr-cvs1:/tmp/cvs-serv27083/jrobin/demo

Modified Files:
	JRobinDemo.java 
Log Message:
Almost finished basic demo...

Index: JRobinDemo.java
===================================================================
RCS file: /cvsroot/jrobin/src/jrobin/demo/JRobinDemo.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** JRobinDemo.java	11 Oct 2003 20:34:39 -0000	1.3
--- JRobinDemo.java	13 Oct 2003 11:53:54 -0000	1.4
***************
*** 1,240 ****
! /* ============================================================
!  * JRobin : Pure java implementation of RRDTool's functionality
!  * ============================================================
!  *
!  * Project Info:  http://www.sourceforge.net/projects/jrobin
!  * Project Lead:  Sasa Markovic (sa...@eu...);
!  *
!  * (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.
!  *
!  * 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 jrobin.demo;
! 
! import jrobin.core.*;
! import jrobin.graph.RrdGraph;
! import 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.GregorianCalendar;
! 
! /**
!  * <p>Class used to demonstrate almost all of JRobin capabilities. To run this
!  * demonstration execute the following command:</p>
!  *
!  * <pre>
!  * java -jar JRobin-{version}.jar
!  * </pre>
!  *
!  * <p>The jar-file can be found in the <code>libs</code> directory of this distribution.
!  * <b>On Linux platforms, graphs cannot be generated if your computer has no X-windows
!  * server up and running</b> (you'll end up with a nasty looking exception).</p>
!  *
!  * @author <a href="mailto:sa...@eu...">Sasa Markovic</a>
!  */
! public class JRobinDemo {
! 	static final String HOME = System.getProperty("user.home");
! 	static final String SEPARATOR = System.getProperty("file.separator");
! 	static final String FILE = "demo";
! 	static final GregorianCalendar START = new GregorianCalendar(2003, 4, 1);
! 	static final GregorianCalendar END = new GregorianCalendar(2003, 5, 1);
! 	static final int MAX_STEP = 240;
! 
! /**
!  * <p>Runs the demonstration.
!  * Demonstration consists of the following steps: (all files will be
!  * created in your HOME directory):</p>
!  *
!  * <ul>
!  * <li>Sample RRD database 'demo.rrd' is created (uses two GAUGE data sources).
!  * <li>RRD file is updated more than 20.000 times, simulating one month of updates with
!  * time steps of max. 4 minutes.
!  * <li>Last update time is printed.
!  * <li>Sample fetch request is executed, fetching data from RRD file for the whole month.
!  * <li>Fetched data is printed on the screen.
!  * <li>RRD file is dumped to file 'demo.xml' (XML format).
!  * <li>New RRD file 'demo_restored.rrd' is created from XML file.
!  * <li>RRD graph for the whole month is created in memory.
!  * <li>Graph is saved in PNG and JPEG format (files 'demo.png' and 'demo.jpeg').
!  * <li>All files are closed.
!  * <li>Log file 'demo.log' is created. Log file consist of RRDTool commands - execute this file
!  * as Linux shell script to compare RRDTool's and Jrobin's fetch results (should be exactly the
!  * same).
!  * </ul>
!  *
!  * <p>If everything goes well, no exceptions are thrown and your graphs should look like:</p>
!  * <p align="center"><img src="../../../images/demo.png" border="1"></p>
!  * <p>Red and blue lines are simple (DEF) graph sources. Green line (median value)
!  * represents complex (CDEF) graph source which is defined by a RPN expression. Filled
!  * area (orange color) represents the difference between data source values. Sine line is here
!  * just to represent JRobin's advanced graphing capabilities.</p>
!  *
!  * @param args Empty. This demo does not accept command line parameters.
!  * @throws RrdException Thrown in case of JRobin specific error.
!  * @throws IOException Thrown in case of I/O related error.
!  */
! 	public static void main(String[] args) throws RrdException, IOException {
! 		// setup
! 		println("==Starting demo");
! 		RrdDb.setLockMode(RrdDb.WAIT_IF_LOCKED);
! 
! 		long startMillis = System.currentTimeMillis();
! 		long start = START.getTime().getTime() / 1000L;
! 		long end = END.getTime().getTime() / 1000L;
! 		String rrdFile = getFullPath(FILE + ".rrd");
! 		String xmlFile = getFullPath(FILE + ".xml");
! 		String rrdFile2 = getFullPath(FILE + "_restored.rrd");
! 		//String pngFile = getFullPath(FILE + ".png");
! 		String pngFile = "/zzzzzz.png";
! 		String jpegFile = getFullPath(FILE + ".jpeg");
! 		String logFile = getFullPath(FILE + ".log");
! 		PrintWriter pw = new PrintWriter(
! 			new BufferedOutputStream(
! 			new FileOutputStream(logFile, false))
! 		);
! 
! 		// creation
! 		println("==Creating RRD file " + rrdFile);
! 		RrdDef rrdDef = new RrdDef(rrdFile, 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, 797);
! 		rrdDef.addArchive("AVERAGE", 0.5, 288, 775);
! 		rrdDef.addArchive("MAX", 0.5, 1, 600);
! 		rrdDef.addArchive("MAX", 0.5, 6, 700);
! 		rrdDef.addArchive("MAX", 0.5, 24, 797);
! 		rrdDef.addArchive("MAX", 0.5, 288, 775);
! 		println(rrdDef.dump());
! 		pw.println(rrdDef.dump());
! 		RrdDb rrdDb = new RrdDb(rrdDef);
! 		println("==RRD file created.");
! 
! 		// 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;
! 		while(t <= end) {
! 			Sample sample = rrdDb.createSample(t);
! 			sample.setValue("sun", sunSource.getValue());
! 			sample.setValue("shade", shadeSource.getValue());
! 			pw.println(sample.dump());
! 			sample.update();
! 			t += Math.random() * MAX_STEP + 1;
! 			if(((++n) % 1000) == 0) {
! 				System.out.print("*");
! 			};
! 		}
! 		System.out.println("");
! 		println("==Finished. RRD file updated " + n + " times");
! 		println("==Last update time was: " + rrdDb.getLastUpdateTime());
! 
! 		// fetch data
! 		println("==Fetching data for the whole month");
! 		FetchRequest request = rrdDb.createFetchRequest("AVERAGE", start, end);
! 		println(request.dump());
! 		pw.println(request.dump());
! 		FetchPoint[] points = request.fetch();
! 		println("==Data fetched. " + points.length + " points obtained");
! 		for(int i = 0; i < points.length; i++) {
! 			println(points[i].dump());
! 		}
! 		println("==Fetch completed");
! 		println("==Dumping RRD file to XML file " + xmlFile + " (can be restored with RRDTool)");
! 		//rrdDb.dumpXml(xmlFile);
! 		println("==Creating RRD file " + rrdFile2 + " from " + xmlFile);
! 		//RrdDb rrdDb2 = new RrdDb(rrdFile2, xmlFile);
! 		// close files
! 		println("==Closing both RRD files");
! 		rrdDb.close();
! 		//rrdDb2.close();
! 
! 		// creating graph
! 		println("==Creating graph from the second file");
! 		RrdGraphDef gDef = new RrdGraphDef();
! 		gDef.setTimePeriod(start, end);
! 		gDef.setTimeAxisLabel("day in month");
!         gDef.setTitle("Temperatures in May 2003");
! 		gDef.setValueAxisLabel("temperature");
! 		gDef.datasource("sun", rrdFile, "sun", "AVERAGE");
! 		gDef.datasource("shade", rrdFile, "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.RED, "sun temp");
! 		gDef.line("shade", Color.BLUE, "shade temp");
! 		gDef.line("median", Color.GREEN, "median value");
! 		gDef.area("diff", Color.ORANGE, "difference");
! 		gDef.line("sine", Color.CYAN, "sine function demo");
! 		gDef.gprint("sun", "MAX", "\nmaxSun = @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");
! 		RrdGraph graph = new RrdGraph(gDef);
! 		println("==Graph created");
! 		println("==Saving graph as PNG file " + pngFile);
! 		graph.saveAsPNG(pngFile, 600, 400);
! 		println("==Saving graph as JPEG file " + jpegFile);
! 		graph.saveAsJPEG(jpegFile, 600, 400, 0.8F);
! 
! 		// demo ends
! 		pw.close();
! 		println("Demo completed in " +
! 			((System.currentTimeMillis() - startMillis) / 1000.0) +
! 			" sec");
! 	}
! 
! 	static void println(String msg) {
! 		System.out.println(msg);
! 	}
! 
! 	static String getFullPath(String path) {
! 		return HOME + SEPARATOR + path;
! 	}
! }
! 
! class GaugeSource {
! 	private double value;
! 	private double step;
! 
! 	GaugeSource(double value, double step) {
! 		this.value = value;
! 		this.step = step;
! 	}
! 
! 	double getValue() {
! 		double oldValue = value;
! 		double increment = Math.random() * step;
! 		if(Math.random() > 0.5) {
! 			increment *= -1;
! 		}
! 		value += increment;
! 		if(value <= 0) {
! 			value = 0;
! 		}
! 		return oldValue;
! 	}
! 
! 
! }
! 
! 
--- 1,239 ----
! /* ============================================================
!  * JRobin : Pure java implementation of RRDTool's functionality
!  * ============================================================
!  *
!  * Project Info:  http://www.sourceforge.net/projects/jrobin
!  * Project Lead:  Sasa Markovic (sa...@eu...);
!  *
!  * (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.
!  *
!  * 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 jrobin.demo;
! 
! import jrobin.core.*;
! import jrobin.graph.RrdGraph;
! import 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.GregorianCalendar;
! 
! /**
!  * <p>Class used to demonstrate almost all of JRobin capabilities. To run this
!  * demonstration execute the following command:</p>
!  *
!  * <pre>
!  * java -jar JRobin-{version}.jar
!  * </pre>
!  *
!  * <p>The jar-file can be found in the <code>libs</code> directory of this distribution.
!  * <b>On Linux platforms, graphs cannot be generated if your computer has no X-windows
!  * server up and running</b> (you'll end up with a nasty looking exception).</p>
!  *
!  * @author <a href="mailto:sa...@eu...">Sasa Markovic</a>
!  */
! public class JRobinDemo {
! 	static final String HOME = System.getProperty("user.home");
! 	static final String SEPARATOR = System.getProperty("file.separator");
! 	static final String FILE = "demo";
! 	static final GregorianCalendar START = new GregorianCalendar(2003, 4, 1);
! 	static final GregorianCalendar END = new GregorianCalendar(2003, 5, 1);
! 	static final int MAX_STEP = 240;
! 
! /**
!  * <p>Runs the demonstration.
!  * Demonstration consists of the following steps: (all files will be
!  * created in your HOME directory):</p>
!  *
!  * <ul>
!  * <li>Sample RRD database 'demo.rrd' is created (uses two GAUGE data sources).
!  * <li>RRD file is updated more than 20.000 times, simulating one month of updates with
!  * time steps of max. 4 minutes.
!  * <li>Last update time is printed.
!  * <li>Sample fetch request is executed, fetching data from RRD file for the whole month.
!  * <li>Fetched data is printed on the screen.
!  * <li>RRD file is dumped to file 'demo.xml' (XML format).
!  * <li>New RRD file 'demo_restored.rrd' is created from XML file.
!  * <li>RRD graph for the whole month is created in memory.
!  * <li>Graph is saved in PNG and JPEG format (files 'demo.png' and 'demo.jpeg').
!  * <li>All files are closed.
!  * <li>Log file 'demo.log' is created. Log file consist of RRDTool commands - execute this file
!  * as Linux shell script to compare RRDTool's and Jrobin's fetch results (should be exactly the
!  * same).
!  * </ul>
!  *
!  * <p>If everything goes well, no exceptions are thrown and your graphs should look like:</p>
!  * <p align="center"><img src="../../../images/demo.png" border="1"></p>
!  * <p>Red and blue lines are simple (DEF) graph sources. Green line (median value)
!  * represents complex (CDEF) graph source which is defined by a RPN expression. Filled
!  * area (orange color) represents the difference between data source values. Sine line is here
!  * just to represent JRobin's advanced graphing capabilities.</p>
!  *
!  * @param args Empty. This demo does not accept command line parameters.
!  * @throws RrdException Thrown in case of JRobin specific error.
!  * @throws IOException Thrown in case of I/O related error.
!  */
! 	public static void main(String[] args) throws RrdException, IOException {
! 		// setup
! 		println("==Starting demo");
! 		RrdDb.setLockMode(RrdDb.NO_LOCKS);
! 
! 		long startMillis = System.currentTimeMillis();
! 		long start = START.getTime().getTime() / 1000L;
! 		long end = END.getTime().getTime() / 1000L;
! 		String rrdPath = getFullPath(FILE + ".rrd");
! 		String xmlPath = getFullPath(FILE + ".xml");
! 		String rrdRestoredPath = getFullPath(FILE + "_restored.rrd");
! 		String pngPath = getFullPath(FILE + ".png");
! 		String jpegPath = getFullPath(FILE + ".jpeg");
! 		String logPath = getFullPath(FILE + ".log");
! 		PrintWriter pw = 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, 797);
! 		rrdDef.addArchive("AVERAGE", 0.5, 288, 775);
! 		rrdDef.addArchive("MAX", 0.5, 1, 600);
! 		rrdDef.addArchive("MAX", 0.5, 6, 700);
! 		rrdDef.addArchive("MAX", 0.5, 24, 797);
! 		rrdDef.addArchive("MAX", 0.5, 288, 775);
! 		println(rrdDef.dump());
! 		pw.println(rrdDef.dump());
! 		RrdDb rrdDb = new RrdDb(rrdDef);
! 		println("==RRD file created.");
! 
! 		// 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;
! 		Sample sample = rrdDb.createSample();
! 		while(t <= end) {
! 			sample.setTime(t);
! 			sample.setValue("sun", sunSource.getValue());
! 			sample.setValue("shade", shadeSource.getValue());
! 			pw.println(sample.dump());
! 			sample.update();
! 			t += Math.random() * MAX_STEP + 1;
! 			if(((++n) % 1000) == 0) {
! 				System.out.print("*");
! 			};
! 		}
! 		System.out.println("");
! 		println("==Finished. RRD file updated " + n + " times");
! 		println("==Last update time was: " + rrdDb.getLastUpdateTime());
! 
! 		// fetch data
! 		println("==Fetching data for the whole month");
! 		FetchRequest request = rrdDb.createFetchRequest("AVERAGE", start, end);
! 		println(request.dump());
! 		pw.println(request.dump());
! 		FetchPoint[] points = request.fetch();
! 		println("==Data fetched. " + points.length + " points obtained");
! 		for(int i = 0; i < points.length; i++) {
! 			println(points[i].dump());
! 		}
! 		println("==Fetch completed");
! 		println("==Dumping RRD file to XML file " + xmlPath + " (can be restored with RRDTool)");
! 		rrdDb.dumpXml(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();
! 		rrdRestoredDb.close();
! 
! 		// creating graph
! 		println("==Creating graph from the second file");
! 		RrdGraphDef gDef = new RrdGraphDef();
! 		gDef.setTimePeriod(start, end);
! 		gDef.setTimeAxisLabel("day in month");
!         gDef.setTitle("Temperatures in May 2003");
! 		gDef.setValueAxisLabel("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.RED, "sun temp");
! 		gDef.line("shade", Color.BLUE, "shade temp");
! 		gDef.line("median", Color.GREEN, "median value");
! 		gDef.area("diff", Color.ORANGE, "difference");
! 		gDef.line("sine", Color.CYAN, "sine function demo");
! 		gDef.gprint("sun", "MAX", "\nmaxSun = @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");
! 		RrdGraph graph = new RrdGraph(gDef);
! 		println("==Graph created");
! 		println("==Saving graph as PNG file " + pngPath);
! 		graph.saveAsPNG(pngPath, 600, 400);
! 		println("==Saving graph as JPEG file " + jpegPath);
! 		graph.saveAsJPEG(jpegPath, 600, 400, 0.5F);
! 
! 		// demo ends
! 		pw.close();
! 		println("Demo completed in " +
! 			((System.currentTimeMillis() - startMillis) / 1000.0) +
! 			" sec");
! 	}
! 
! 	static void println(String msg) {
! 		System.out.println(msg);
! 	}
! 
! 	static String getFullPath(String path) {
! 		return HOME + SEPARATOR + path;
! 	}
! }
! 
! class GaugeSource {
! 	private double value;
! 	private double step;
! 
! 	GaugeSource(double value, double step) {
! 		this.value = value;
! 		this.step = step;
! 	}
! 
! 	double getValue() {
! 		double oldValue = value;
! 		double increment = Math.random() * step;
! 		if(Math.random() > 0.5) {
! 			increment *= -1;
! 		}
! 		value += increment;
! 		if(value <= 0) {
! 			value = 0;
! 		}
! 		return oldValue;
! 	}
! 
! 
! }
! 
!