Java tutorial
/* SpagoBI, the Open Source Business Intelligence suite * Copyright (C) 2012 Engineering Ingegneria Informatica S.p.A. - SpagoBI Competency Center * This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0, without the "Incompatible With Secondary Licenses" notice. * If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/. */ package it.eng.spagobi.engines.chart.bo.charttypes.dialcharts; import it.eng.spago.base.SourceBean; import it.eng.spago.base.SourceBeanAttribute; import it.eng.spagobi.engines.chart.bo.charttypes.utils.KpiInterval; import it.eng.spagobi.engines.chart.utils.DatasetMap; import java.awt.Color; import java.awt.Font; import java.awt.GradientPaint; import java.awt.Point; import java.util.Iterator; import java.util.List; import java.util.Vector; import org.apache.log4j.Logger; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.dial.DialBackground; import org.jfree.chart.plot.dial.DialCap; import org.jfree.chart.plot.dial.DialPlot; import org.jfree.chart.plot.dial.DialPointer; import org.jfree.chart.plot.dial.DialTextAnnotation; import org.jfree.chart.plot.dial.DialValueIndicator; import org.jfree.chart.plot.dial.StandardDialFrame; import org.jfree.chart.plot.dial.StandardDialRange; import org.jfree.chart.plot.dial.StandardDialScale; import org.jfree.chart.title.TextTitle; import org.jfree.data.general.Dataset; import org.jfree.data.general.ValueDataset; import org.jfree.ui.GradientPaintTransformType; import org.jfree.ui.StandardGradientPaintTransformer; /** * A class to generate Speedometer charts * @author Giulio Gavardi * */ public class SBISpeedometer extends DialCharts { private static transient Logger logger = Logger.getLogger(SBISpeedometer.class); Vector intervals; double increment = 0.0; int minorTickCount = 0; boolean dialtextuse = false; String dialtext = ""; /** * Instantiates a new sBI speedometer. */ public SBISpeedometer() { super(); intervals = new Vector(); } /** * set parameters for the creation of the chart getting them from template or from LOV. * * @param content the content of the template. * * @return A chart that displays a value as a dial. */ public void configureChart(SourceBean content) { super.configureChart(content); logger.debug("IN"); if (!isLovConfDefined) { logger.debug("Configuration set in template"); if (confParameters.get("increment") != null) { String increment = (String) confParameters.get("increment"); setIncrement(Double.valueOf(increment).doubleValue()); } else { logger.error("increment not defined"); return; } if (confParameters.get("minor_tick") != null) { String minorTickCount = (String) confParameters.get("minor_tick"); setMinorTickCount(Integer.valueOf(minorTickCount).intValue()); } else { setMinorTickCount(10); } if (confParameters.get("dialtextuse") != null) { String dialtextusetemp = (String) confParameters.get("dialtextuse"); if (dialtextusetemp.equalsIgnoreCase("true")) { dialtextuse = true; } else dialtextuse = false; } if (dialtextuse && confParameters.get("dialtext") != null) { dialtext = (String) confParameters.get("dialtext"); } //reading intervals information SourceBean intervalsSB = (SourceBean) content.getAttribute("INTERVALS"); if (intervalsSB == null) { intervalsSB = (SourceBean) content.getAttribute("CONF.INTERVALS"); } List intervalsAttrsList = null; if (intervalsSB != null) { intervalsAttrsList = intervalsSB.getContainedSourceBeanAttributes(); } if (intervalsAttrsList == null || intervalsAttrsList.isEmpty()) { // if intervals are not defined realize a single interval logger.warn("intervals not defined; default settings"); KpiInterval interval = new KpiInterval(); interval.setMin(getLower()); interval.setMax(getUpper()); interval.setColor(Color.WHITE); addInterval(interval); } else { Iterator intervalsAttrsIter = intervalsAttrsList.iterator(); while (intervalsAttrsIter.hasNext()) { SourceBeanAttribute paramSBA = (SourceBeanAttribute) intervalsAttrsIter.next(); SourceBean param = (SourceBean) paramSBA.getValue(); String min = (String) param.getAttribute("min"); String max = (String) param.getAttribute("max"); String col = (String) param.getAttribute("color"); KpiInterval interval = new KpiInterval(); interval.setMin(Double.valueOf(min).doubleValue()); interval.setMax(Double.valueOf(max).doubleValue()); Color color = new Color(Integer.decode(col).intValue()); if (color != null) { interval.setColor(color); } else { // sets default color interval.setColor(Color.WHITE); } addInterval(interval); } } } else { logger.debug("configuration defined in LOV" + confDataset); String increment = (String) sbRow.getAttribute("increment"); String minorTickCount = (String) sbRow.getAttribute("minor_tick"); setIncrement(Double.valueOf(increment).doubleValue()); setMinorTickCount(Integer.valueOf(minorTickCount).intValue()); String intervalsNumber = (String) sbRow.getAttribute("intervals_number"); if (intervalsNumber == null || intervalsNumber.equals("") || intervalsNumber.equals("0")) { // if intervals are not specified KpiInterval interval = new KpiInterval(); interval.setMin(getLower()); interval.setMax(getUpper()); interval.setColor(Color.WHITE); addInterval(interval); } else { for (int i = 1; i <= Integer.valueOf(intervalsNumber).intValue(); i++) { KpiInterval interval = new KpiInterval(); String min = (String) sbRow.getAttribute("min" + (new Integer(i)).toString()); String max = (String) sbRow.getAttribute("max" + (new Integer(i)).toString()); String col = (String) sbRow.getAttribute("color" + (new Integer(i)).toString()); interval.setMin(Double.valueOf(min).doubleValue()); interval.setMax(Double.valueOf(max).doubleValue()); Color color = new Color(Integer.decode(col).intValue()); interval.setColor(color); addInterval(interval); } } } logger.debug("out"); } /** * Creates a chart of type speedometer. * * @param chartTitle the chart title. * @param dataset the dataset. * * @return A chart speedometer. */ public JFreeChart createChart(DatasetMap datasets) { logger.debug("IN"); Dataset dataset = (Dataset) datasets.getDatasets().get("1"); DialPlot plot = new DialPlot(); plot.setDataset((ValueDataset) dataset); plot.setDialFrame(new StandardDialFrame()); plot.setBackground(new DialBackground()); if (dialtextuse) { DialTextAnnotation annotation1 = new DialTextAnnotation(dialtext); annotation1.setFont(styleTitle.getFont()); annotation1.setRadius(0.7); plot.addLayer(annotation1); } DialValueIndicator dvi = new DialValueIndicator(0); dvi.setFont(new Font(labelsValueStyle.getFontName(), Font.PLAIN, labelsValueStyle.getSize())); dvi.setPaint(labelsValueStyle.getColor()); plot.addLayer(dvi); StandardDialScale scale = new StandardDialScale(lower, upper, -120, -300, 10.0, 4); if (!(increment > 0)) { logger.warn("increment cannot be less than 0, put default to 0.1"); increment = 0.01; } scale.setMajorTickIncrement(increment); // if (!( minorTickCount > 0)){ // logger.warn("minor tick count cannot be less than 0, put default to 1"); // minorTickCount = 1; // } scale.setMinorTickCount(minorTickCount); scale.setTickRadius(0.88); scale.setTickLabelOffset(0.15); //set tick label style Font tickLabelsFont = new Font(labelsTickStyle.getFontName(), Font.PLAIN, labelsTickStyle.getSize()); scale.setTickLabelFont(tickLabelsFont); scale.setTickLabelPaint(labelsTickStyle.getColor()); plot.addScale(0, scale); plot.addPointer(new DialPointer.Pin()); DialCap cap = new DialCap(); plot.setCap(cap); // sets intervals for (Iterator iterator = intervals.iterator(); iterator.hasNext();) { KpiInterval interval = (KpiInterval) iterator.next(); StandardDialRange range = new StandardDialRange(interval.getMin(), interval.getMax(), interval.getColor()); range.setInnerRadius(0.52); range.setOuterRadius(0.55); plot.addLayer(range); } GradientPaint gp = new GradientPaint(new Point(), new Color(255, 255, 255), new Point(), new Color(170, 170, 220)); DialBackground db = new DialBackground(gp); db.setGradientPaintTransformer(new StandardGradientPaintTransformer(GradientPaintTransformType.VERTICAL)); plot.setBackground(db); plot.removePointer(0); DialPointer.Pointer p = new DialPointer.Pointer(); p.setFillPaint(Color.yellow); plot.addPointer(p); logger.debug("OUT"); JFreeChart chart = new JFreeChart(name, plot); TextTitle title = setStyleTitle(name, styleTitle); chart.setTitle(title); if (subName != null && !subName.equals("")) { TextTitle subTitle = setStyleTitle(subName, styleSubTitle); chart.addSubtitle(subTitle); } chart.setBackgroundPaint(color); return chart; } /** * Gets the intervals. * * @return the intervals */ public Vector getIntervals() { return intervals; } /** * Adds the interval. * * @param interval the interval */ public void addInterval(KpiInterval interval) { this.intervals.add(interval); } /** * Gets the increment. * * @return the increment */ public double getIncrement() { return increment; } /** * Sets the increment. * * @param increment the new increment */ public void setIncrement(double increment) { this.increment = increment; } /** * Gets the minor tick count. * * @return the minor tick count */ public int getMinorTickCount() { return minorTickCount; } /** * Sets the minor tick count. * * @param minorTickCount the new minor tick count */ public void setMinorTickCount(int minorTickCount) { this.minorTickCount = minorTickCount; } }