DynamicNbNodes.java

/*
Copyright 2008-2011 Gephi
Authors : Sébastien Heymann <sebastien.heymann@gephi.org>
Website : http://www.gephi.org

This file is part of Gephi.

DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

Copyright 2011 Gephi Consortium. All rights reserved.

The contents of this file are subject to the terms of either the GNU
General Public License Version 3 only ("GPL") or the Common
Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
specific language governing permissions and limitations under the
License.  When distributing the software, include this License Header
Notice in each file and include the License files at
/cddl-1.0.txt and /gpl-3.0.txt. If applicable, add the following below the
License Header, with the fields enclosed by brackets [] replaced by
your own identifying information:
"Portions Copyrighted [year] [name of copyright owner]"

If you wish your version of this file to be governed by only the CDDL
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"[Contributor] elects to include this software in this distribution
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However, if you add GPL Version 3 code and therefore, elected the GPL
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Contributor(s):

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 */
package org.gephi.statistics.plugin.dynamic;

import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.HashMap;
import java.util.Map;
import org.gephi.data.attributes.api.AttributeColumn;
import org.gephi.data.attributes.api.AttributeModel;
import org.gephi.data.attributes.api.AttributeOrigin;
import org.gephi.data.attributes.api.AttributeTable;
import org.gephi.data.attributes.api.AttributeType;
import org.gephi.data.attributes.type.DynamicInteger;
import org.gephi.data.attributes.type.Interval;
import org.gephi.graph.api.GraphModel;
import org.gephi.graph.api.GraphView;
import org.gephi.graph.api.HierarchicalGraph;
import org.gephi.statistics.plugin.ChartUtils;
import org.gephi.statistics.spi.DynamicStatistics;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.openide.util.NbBundle;

/**
 *
 * @author Sébastien Heymann
 */
public class DynamicNbNodes implements DynamicStatistics {

    public static final String NB_NODES = "dynamic nodecount";
    //Data
    private GraphModel graphModel;
    private double window;
    private double tick;
    private Interval bounds;
    //Average
    private AttributeColumn nbNodesCol;
    private DynamicInteger counts;

    public void execute(GraphModel graphModel, AttributeModel attributeModel) {
        this.graphModel = graphModel;

        //Column
        AttributeTable graphTable = attributeModel.getGraphTable();
        nbNodesCol = graphTable.getColumn(NB_NODES);
        if (nbNodesCol == null) {
            nbNodesCol = graphTable.addColumn(NB_NODES, NbBundle.getMessage(DynamicNbNodes.class, "DynamicNbNodes.graphcolumn.NbNodes"), AttributeType.DYNAMIC_INT, AttributeOrigin.COMPUTED, new DynamicInteger());
        }
        counts = new DynamicInteger();
        graphModel.getGraphVisible().getAttributes().setValue(nbNodesCol.getIndex(), counts);
    }

    public String getReport() {
        //Transform to Map
        Map<Double, Integer> map = new HashMap<Double, Integer>();
        for (Interval<Integer> interval : counts.getIntervals()) {
            map.put(interval.getLow(), interval.getValue());
        }

        //Time series
        XYSeries dSeries = ChartUtils.createXYSeries(map, "Nb Nodes Time Series");

        XYSeriesCollection dataset = new XYSeriesCollection();
        dataset.addSeries(dSeries);

        JFreeChart chart = ChartFactory.createXYLineChart(
                "# Nodes Time Series",
                "Time",
                "# Nodes",
                dataset,
                PlotOrientation.VERTICAL,
                true,
                false,
                false);

        chart.removeLegend();
        ChartUtils.decorateChart(chart);
        ChartUtils.scaleChart(chart, dSeries, false);
        String imageFile = ChartUtils.renderChart(chart, "nb-nodes-ts.png");

        NumberFormat f = new DecimalFormat("#0.000");

        String report = "<HTML> <BODY> <h1>Dynamic Number of Nodes Report </h1> "
                + "<hr>"
                + "<br> Bounds: from " + f.format(bounds.getLow()) + " to " + f.format(bounds.getHigh())
                + "<br> Window: " + window
                + "<br> Tick: " + tick
                + "<br><br><h2> Number of nodes over time: </h2>"
                + "<br /><br />" + imageFile;

        /*for (Interval<Integer> count : counts) {
        report += count.toString(dynamicModel.getTimeFormat().equals(DynamicModel.TimeFormat.DOUBLE)) + "<br />";
        }*/
        report += "<br /><br /></BODY></HTML>";
        return report;
    }

    public void loop(GraphView window, Interval interval) {
        HierarchicalGraph graph = graphModel.getHierarchicalGraph(window);

        int count = graph.getNodeCount();

        counts = new DynamicInteger(counts, new Interval<Integer>(interval.getLow(), interval.getHigh(), false, true, count));
    }

    public void end() {
        graphModel.getGraphVisible().getAttributes().setValue(nbNodesCol.getIndex(), counts);
    }

    public void setBounds(Interval bounds) {
        this.bounds = bounds;
    }

    public void setWindow(double window) {
        this.window = window;
    }

    public void setTick(double tick) {
        this.tick = tick;
    }

    public double getWindow() {
        return window;
    }

    public double getTick() {
        return tick;
    }

    public Interval getBounds() {
        return bounds;
    }
}