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/*
 Copyright 2008-2010 Gephi
 Authors : Mathieu Bastian 
 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
 or only the GPL Version 3, indicate your decision by adding
 "[Contributor] elects to include this software in this distribution
 under the [CDDL or GPL Version 3] license." If you do not indicate a
 single choice of license, a recipient has the option to distribute
 your version of this file under either the CDDL, the GPL Version 3 or
 to extend the choice of license to its licensees as provided above.
 However, if you add GPL Version 3 code and therefore, elected the GPL
 Version 3 license, then the option applies only if the new code is
 made subject to such option by the copyright holder.

 Contributor(s):

 Portions Copyrighted 2011 Gephi Consortium.
 */

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.graph.api.Column;
import org.gephi.graph.api.DirectedGraph;
import org.gephi.graph.api.Graph;
import org.gephi.graph.api.GraphController;
import org.gephi.graph.api.GraphModel;
import org.gephi.graph.api.GraphView;
import org.gephi.graph.api.Interval;
import org.gephi.graph.api.Node;
import org.gephi.graph.api.Table;
import org.gephi.graph.api.TimeRepresentation;
import org.gephi.graph.api.types.IntervalIntegerMap;
import org.gephi.graph.api.types.TimestampIntegerMap;
import org.gephi.statistics.plugin.ChartUtils;
import org.gephi.statistics.plugin.ColumnUtils;
import org.gephi.statistics.spi.DynamicStatistics;
import org.gephi.utils.longtask.spi.LongTask;
import org.gephi.utils.progress.ProgressTicket;
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.Lookup;
import org.openide.util.NbBundle;

/**
 * @author Mathieu Bastian
 */
public class DynamicDegree implements DynamicStatistics, LongTask {

    public static final String DYNAMIC_AVGDEGREE = "dynamic_avgdegree";
    public static final String DYNAMIC_INDEGREE = "dynamic_indegree";
    public static final String DYNAMIC_OUTDEGREE = "dynamic_outdegree";
    public static final String DYNAMIC_DEGREE = "dynamic_degree";
    //Data
    private GraphModel graphModel;
    private double window;
    private double tick;
    private Interval bounds;
    private boolean isDirected;
    private boolean averageOnly;
    private boolean cancel = false;
    //Cols
    private Column dynamicInDegreeColumn;
    private Column dynamicOutDegreeColumn;
    private Column dynamicDegreeColumn;
    //Average
    private Map averages;

    public DynamicDegree() {
        GraphController graphController = Lookup.getDefault().lookup(GraphController.class);
        if (graphController != null && graphController.getGraphModel() != null) {
            isDirected = graphController.getGraphModel().isDirected();
        }
    }

    @Override
    public void execute(GraphModel graphModel) {
        this.graphModel = graphModel;
        this.isDirected = graphModel.isDirected();
        this.averages = new HashMap<>();

        //Attributes cols
        if (!averageOnly) {
            TimeRepresentation tr = graphModel.getConfiguration().getTimeRepresentation();

            Table nodeTable = graphModel.getNodeTable();
            Class columnType =
                tr.equals(TimeRepresentation.INTERVAL) ? IntervalIntegerMap.class : TimestampIntegerMap.class;
            if (isDirected) {
                ColumnUtils.cleanUpColumns(nodeTable, new String[] {DYNAMIC_INDEGREE, DYNAMIC_OUTDEGREE}, columnType);
                dynamicInDegreeColumn = nodeTable.getColumn(DYNAMIC_INDEGREE);
                dynamicOutDegreeColumn = nodeTable.getColumn(DYNAMIC_OUTDEGREE);

                if (dynamicInDegreeColumn == null) {
                    dynamicInDegreeColumn = nodeTable.addColumn(DYNAMIC_INDEGREE,
                        NbBundle.getMessage(DynamicDegree.class, "DynamicDegree.nodecolumn.InDegree"), columnType,
                        null);
                }
                if (dynamicOutDegreeColumn == null) {
                    dynamicOutDegreeColumn = nodeTable.addColumn(DYNAMIC_OUTDEGREE,
                        NbBundle.getMessage(DynamicDegree.class, "DynamicDegree.nodecolumn.OutDegree"), columnType,
                        null);
                }
            }
            ColumnUtils.cleanUpColumns(nodeTable, new String[] {DYNAMIC_DEGREE}, columnType);
            dynamicDegreeColumn = nodeTable.getColumn(DYNAMIC_DEGREE);
            if (dynamicDegreeColumn == null) {
                dynamicDegreeColumn = nodeTable.addColumn(DYNAMIC_DEGREE,
                    NbBundle.getMessage(DynamicDegree.class, "DynamicDegree.nodecolumn.Degree"), columnType,
                    null);
            }
        }
    }

    @Override
    public String getReport() {
        //Time series
        XYSeries dSeries = ChartUtils.createXYSeries(averages, "Degree Time Series");

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

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

        chart.removeLegend();
        ChartUtils.decorateChart(chart);
        ChartUtils.scaleChart(chart, dSeries, false);
        String degreeImageFile = ChartUtils.renderChart(chart, "degree-ts.png");

        NumberFormat f = new DecimalFormat("#0.000000");

        String report = "  

Dynamic Degree Report

" + "
" + "
Bounds: from " + f.format(bounds.getLow()) + " to " + f.format(bounds.getHigh()) + "
Window: " + window + "
Tick: " + tick + "

Average degrees over time:

" + "

" + degreeImageFile; /*for (Interval averages : averages) { report += averages.toString(dynamicModel.getTimeFormat().equals(DynamicModel.TimeFormat.DOUBLE)) + "
"; }*/ report += "

"; return report; } @Override public void loop(GraphView window, Interval interval) { Graph graph = graphModel.getGraph(window); DirectedGraph directedGraph = null; if (isDirected) { directedGraph = graphModel.getDirectedGraph(window); } TimeRepresentation tr = graphModel.getConfiguration().getTimeRepresentation(); long sum = 0; for (Node n : graph.getNodes().toArray()) { int degree = graph.getDegree(n); if (!averageOnly) { switch (tr) { case INTERVAL: n.setAttribute(dynamicDegreeColumn, degree, new Interval(interval.getLow(), interval.getLow() + tick)); break; case TIMESTAMP: n.setAttribute(dynamicDegreeColumn, degree, interval.getLow()); n.setAttribute(dynamicDegreeColumn, degree, interval.getHigh()); break; } if (isDirected) { int indegree = directedGraph.getInDegree(n); int outdegree = directedGraph.getOutDegree(n); switch (tr) { case INTERVAL: n.setAttribute(dynamicInDegreeColumn, indegree, new Interval(interval.getLow(), interval.getLow() + tick)); n.setAttribute(dynamicOutDegreeColumn, outdegree, new Interval(interval.getLow(), interval.getLow() + tick)); break; case TIMESTAMP: n.setAttribute(dynamicInDegreeColumn, indegree, interval.getLow()); n.setAttribute(dynamicInDegreeColumn, indegree, interval.getHigh()); n.setAttribute(dynamicOutDegreeColumn, outdegree, interval.getLow()); n.setAttribute(dynamicOutDegreeColumn, outdegree, interval.getHigh()); break; } } } sum += degree; if (cancel) { break; } } double avg = sum / (double) graph.getNodeCount(); averages.put(interval.getLow(), avg); averages.put(interval.getHigh(), avg); graphModel.getGraphVisible().setAttribute(DYNAMIC_AVGDEGREE, avg, interval.getLow()); graphModel.getGraphVisible().setAttribute(DYNAMIC_AVGDEGREE, avg, interval.getHigh()); } @Override public void end() { } @Override public double getWindow() { return window; } @Override public void setWindow(double window) { this.window = window; } @Override public double getTick() { return tick; } @Override public void setTick(double tick) { this.tick = tick; } @Override public Interval getBounds() { return bounds; } @Override public void setBounds(Interval bounds) { this.bounds = bounds; } public boolean isDirected() { return isDirected; } public void setDirected(boolean isDirected) { this.isDirected = isDirected; } public boolean isAverageOnly() { return averageOnly; } public void setAverageOnly(boolean averageOnly) { this.averageOnly = averageOnly; } @Override public boolean cancel() { cancel = true; return true; } @Override public void setProgressTicket(ProgressTicket progressTicket) { } }




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