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.linecharts; import it.eng.spago.base.SourceBean; import it.eng.spago.base.SourceBeanAttribute; import it.eng.spagobi.engines.chart.bo.ChartImpl; import it.eng.spagobi.engines.chart.bo.charttypes.utils.MyStandardCategoryItemLabelGenerator; import it.eng.spagobi.engines.chart.utils.DatasetMap; import java.awt.Color; import java.awt.Font; import java.util.HashMap; import java.util.Iterator; import java.util.LinkedHashMap; import java.util.List; import org.apache.log4j.Logger; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.CategoryLabelPositions; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.LineAndShapeRenderer; import org.jfree.chart.title.TextTitle; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.HorizontalAlignment; import org.jfree.ui.RectangleEdge; import org.jfree.ui.RectangleInsets; import org.jfree.ui.VerticalAlignment; public class LineChart extends ChartImpl { private static transient Logger logger = Logger.getLogger(LineChart.class); HashMap categories; int categoriesNumber = 0; DatasetMap datasetMap; String res = ""; public LineChart() { super(); datasetMap = new DatasetMap(); categories = new HashMap(); } public DatasetMap calculateValue(String result) throws Exception { logger.debug("IN"); res = result; categories = new HashMap(); datasetMap = new DatasetMap(); SourceBean sbRows = SourceBean.fromXMLString(res); List listAtts = sbRows.getAttributeAsList("ROW"); // run all categories (one for each row) categoriesNumber = 0; datasetMap.getDatasets().put("line", new DefaultCategoryDataset()); boolean first = true; for (Iterator iterator = listAtts.iterator(); iterator.hasNext();) { SourceBean category = (SourceBean) iterator.next(); List atts = category.getContainedAttributes(); HashMap series = new LinkedHashMap(); HashMap additionalValues = new LinkedHashMap(); String catValue = ""; String nameP = ""; String value = ""; //run all the attributes, to define series! int numColumn = 0; if (!atts.isEmpty()) { for (Iterator iterator2 = atts.iterator(); iterator2.hasNext();) { numColumn++; SourceBeanAttribute object = (SourceBeanAttribute) iterator2.next(); nameP = new String(object.getKey()); value = new String((String) object.getValue()); logger.error("Name:" + nameP); logger.error("Value:" + value); if (nameP.equalsIgnoreCase("x")) { catValue = value; categoriesNumber = categoriesNumber + 1; categories.put(new Integer(categoriesNumber), value); } else { series.put(nameP, value); } } } String nameS = "KPI_VALUE"; String labelS = "kpi Values"; String valueS = (String) series.get(nameS); if (valueS != null) { ((DefaultCategoryDataset) (datasetMap.getDatasets().get("line"))) .addValue(Double.valueOf(valueS).doubleValue(), labelS, catValue); } } logger.debug("OUT"); return datasetMap; } public JFreeChart createChart() { logger.debug("IN"); CategoryPlot plot = new CategoryPlot(); NumberAxis rangeAxis = new NumberAxis("Kpi Values"); rangeAxis.setLabelFont(new Font("Arial", Font.PLAIN, 12)); Color colorLabel = Color.decode("#000000"); rangeAxis.setLabelPaint(colorLabel); rangeAxis.setTickLabelFont(new Font("Arial", Font.PLAIN, 10)); rangeAxis.setTickLabelPaint(colorLabel); plot.setRangeAxis(rangeAxis); CategoryAxis domainAxis = new CategoryAxis(); domainAxis.setLabelFont(new Font("Arial", Font.PLAIN, 10)); domainAxis.setLabelPaint(colorLabel); domainAxis.setTickLabelFont(new Font("Arial", Font.PLAIN, 10)); domainAxis.setTickLabelPaint(colorLabel); plot.setDomainAxis(domainAxis); plot.setOrientation(PlotOrientation.VERTICAL); plot.setRangeGridlinesVisible(true); plot.setDomainGridlinesVisible(true); //I create a line renderer MyStandardCategoryItemLabelGenerator generator = null; LineAndShapeRenderer lineRenderer = new LineAndShapeRenderer(); lineRenderer.setShapesFilled(true); lineRenderer.setBaseItemLabelGenerator(generator); lineRenderer.setBaseItemLabelFont(new Font("Arial", Font.PLAIN, 12)); lineRenderer.setBaseItemLabelPaint(colorLabel); lineRenderer.setBaseItemLabelsVisible(true); DefaultCategoryDataset datasetLine = (DefaultCategoryDataset) datasetMap.getDatasets().get("line"); for (Iterator iterator = datasetLine.getRowKeys().iterator(); iterator.hasNext();) { String serName = (String) iterator.next(); String labelName = ""; int index = -1; index = datasetLine.getRowIndex(serName); Color color = Color.decode("#990200"); lineRenderer.setSeriesPaint(index, color); } plot.setDataset(0, datasetLine); plot.setRenderer(0, lineRenderer); plot.getDomainAxis().setCategoryLabelPositions(CategoryLabelPositions.UP_45); JFreeChart chart = new JFreeChart(plot); logger.debug("Chart created"); TextTitle title = new TextTitle(name, new Font("Arial", Font.BOLD, 16), Color.decode("#990200"), RectangleEdge.TOP, HorizontalAlignment.CENTER, VerticalAlignment.TOP, RectangleInsets.ZERO_INSETS); chart.setTitle(title); TextTitle subTitle = new TextTitle(subName, new Font("Arial", Font.PLAIN, 12), Color.decode("#000000"), RectangleEdge.TOP, HorizontalAlignment.CENTER, VerticalAlignment.TOP, RectangleInsets.ZERO_INSETS); chart.addSubtitle(subTitle); TextTitle subTitle2 = new TextTitle(subName, new Font("Arial", Font.PLAIN, 8), Color.decode("#FFFFFF"), RectangleEdge.TOP, HorizontalAlignment.CENTER, VerticalAlignment.TOP, RectangleInsets.ZERO_INSETS); chart.addSubtitle(subTitle2); chart.removeLegend(); chart.setBackgroundPaint(Color.white); logger.debug("OUT"); return chart; } }