Java tutorial
// <editor-fold defaultstate="collapsed" desc="License"> /* * Copyright 2012 Mitchell Just <mitch.just@gmail.com>. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ // </editor-fold> package com.unicornlabs.kabouter.reporting; import com.lowagie.text.Document; import com.lowagie.text.DocumentException; import com.lowagie.text.PageSize; import com.lowagie.text.Paragraph; import com.lowagie.text.pdf.DefaultFontMapper; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfTemplate; import com.lowagie.text.pdf.PdfWriter; import com.unicornlabs.kabouter.BusinessObjectManager; import com.unicornlabs.kabouter.historian.Historian; import com.unicornlabs.kabouter.historian.data_objects.Powerlog; import java.awt.Desktop; import java.awt.Graphics2D; import java.awt.geom.Rectangle2D; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.text.DecimalFormat; import java.text.NumberFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JOptionPane; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.labels.StandardXYToolTipGenerator; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.StandardXYItemRenderer; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.xy.XYDataset; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; /** * PowerReport.java * * @author Mitchell Just <mitch.just@gmail.com> * * Description: TODO Add Class Description */ public class PowerReport { private static final Logger LOGGER = Logger.getLogger(PowerReport.class.getName()); static { LOGGER.setLevel(Level.ALL); } public static void GeneratePowerReport(Date startDate, Date endDate) { try { Historian theHistorian = (Historian) BusinessObjectManager.getBusinessObject(Historian.class.getName()); ArrayList<String> powerLogDeviceIds = theHistorian.getPowerLogDeviceIds(); Document document = new Document(PageSize.A4, 50, 50, 50, 50); File outputFile = new File("PowerReport.pdf"); outputFile.createNewFile(); PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(outputFile)); document.open(); document.add(new Paragraph("Power Report for " + startDate.toString() + " to " + endDate.toString())); document.newPage(); DecimalFormat df = new DecimalFormat("#.###"); for (String deviceId : powerLogDeviceIds) { ArrayList<Powerlog> powerlogs = theHistorian.getPowerlogs(deviceId, startDate, endDate); double total = 0; double max = 0; Date maxTime = startDate; double average = 0; XYSeries series = new XYSeries(deviceId); XYDataset dataset = new XYSeriesCollection(series); for (Powerlog log : powerlogs) { total += log.getPower(); if (log.getPower() > max) { max = log.getPower(); maxTime = log.getId().getLogtime(); } series.add(log.getId().getLogtime().getTime(), log.getPower()); } average = total / powerlogs.size(); document.add(new Paragraph("\nDevice: " + deviceId)); document.add(new Paragraph("Average Power Usage: " + df.format(average))); document.add(new Paragraph("Maximum Power Usage: " + df.format(max) + " at " + maxTime.toString())); document.add(new Paragraph("Total Power Usage: " + df.format(total))); //Create a custom date axis to display dates on the X axis DateAxis dateAxis = new DateAxis("Date"); //Make the labels vertical dateAxis.setVerticalTickLabels(true); //Create the power axis NumberAxis powerAxis = new NumberAxis("Power"); //Set both axes to auto range for their values powerAxis.setAutoRange(true); dateAxis.setAutoRange(true); //Create the tooltip generator StandardXYToolTipGenerator ttg = new StandardXYToolTipGenerator("{0}: {2}", new SimpleDateFormat("yyyy/MM/dd HH:mm"), NumberFormat.getInstance()); //Set the renderer StandardXYItemRenderer renderer = new StandardXYItemRenderer(StandardXYItemRenderer.LINES, ttg, null); //Create the plot XYPlot plot = new XYPlot(dataset, dateAxis, powerAxis, renderer); //Create the chart JFreeChart myChart = new JFreeChart(deviceId, JFreeChart.DEFAULT_TITLE_FONT, plot, true); PdfContentByte pcb = writer.getDirectContent(); PdfTemplate tp = pcb.createTemplate(480, 360); Graphics2D g2d = tp.createGraphics(480, 360, new DefaultFontMapper()); Rectangle2D r2d = new Rectangle2D.Double(0, 0, 480, 360); myChart.draw(g2d, r2d); g2d.dispose(); pcb.addTemplate(tp, 0, 0); document.newPage(); } document.close(); JOptionPane.showMessageDialog(null, "Report Generated."); Desktop.getDesktop().open(outputFile); } catch (FileNotFoundException fnfe) { JOptionPane.showMessageDialog(null, "Unable To Open File For Writing, Make Sure It Is Not Currently Open"); } catch (IOException ex) { Logger.getLogger(PowerReport.class.getName()).log(Level.SEVERE, null, ex); } catch (DocumentException ex) { Logger.getLogger(PowerReport.class.getName()).log(Level.SEVERE, null, ex); } } }