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import java.sql.*; |
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import java.util.*; |
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import java.awt.image.*; |
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import java.io.*; |
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import uk.ac.ukc.iscream.util.*; |
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// ReportMaker class - used to produce each type of report for a machine. |
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public class ReportMaker { |
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// Constructor. This takes the database Statement. |
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public ReportMaker(Statement stmt, String webDir, String dateDir, long startTime, long endTime) { |
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_stmt = stmt; |
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_webDir = webDir; |
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_dateDir = dateDir; |
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_startTime = startTime; |
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_endTime = endTime; |
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} |
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|
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// Produce all reports in the report list for the machine. |
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public void produce(ReportList reports, String machine) throws SQLException { |
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|
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System.out.println("Producing reports for " + machine + "."); |
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|
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// Make a list of PlotData objects to build the charts. |
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LinkedList plots = new LinkedList(); |
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Iterator reportIt = reports.iterator(); |
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while (reportIt.hasNext()) { |
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reportIt.next(); |
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plots.add(new PlotData(_startTime, _endTime)); |
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} |
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|
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// Select the data we nede from the database. |
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String sql = "SELECT receipt_date, xml FROM ipacket WHERE machine_name='" + machine + "' AND receipt_date>=" + _startTime + " AND receipt_date<=" + _endTime + " ORDER BY receipt_date;"; |
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ResultSet rs = null; |
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try { |
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rs = _stmt.executeQuery(sql); |
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} |
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catch (SQLException e) { |
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System.out.println("Unable to select data for " + machine + "."); |
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return; |
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} |
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|
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System.out.println("[DEBUG]Populating PlotData objects."); |
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|
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// Go through each selected XML string and add the necessary |
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// data to the PlotData object associated with that report. |
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try { |
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XMLPacketMaker pm = null; |
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XMLPacket packet = null; |
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String xml = null; |
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while(rs.next()) { |
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xml = rs.getString("xml"); |
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pm = new XMLPacketMaker(xml); |
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packet = pm.createXMLPacket(); |
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reportIt = reports.iterator(); |
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Iterator plotIt = plots.iterator(); |
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while (reportIt.hasNext()) { |
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PlotData plotData = (PlotData)plotIt.next(); |
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Report report = (Report)reportIt.next(); |
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String reportField = report.getReportField(); |
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long x = rs.getLong("receipt_date"); |
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double y; |
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try { |
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y = Double.parseDouble(packet.getParam(reportField)); |
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} |
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catch (NumberFormatException e) { |
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System.out.println("Skipped a non-numerical field for " + reportField + "."); |
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continue; |
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} |
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plotData.addPoint(x, y); |
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} |
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} |
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rs.close(); |
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} |
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catch (SQLException e) { |
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System.out.println("SQLException: " + e); |
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} |
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|
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System.out.println("[DEBUG]Writing graphs to disk."); |
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|
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// Write a chart of each report to disk. |
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Iterator plotIt = plots.iterator(); |
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reportIt = reports.iterator(); |
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while (reportIt.hasNext()) { |
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Report report = (Report)reportIt.next(); |
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String reportField = report.getReportField(); |
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PlotData plotData = (PlotData)plotIt.next(); |
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plotData.flushPoints(); |
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plotData.scaleToFitX(SHTMLLayout.CHART_WIDTH, SHTMLLayout.CHART_HEIGHT); |
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IscreamChart chart = new IscreamChart(_startTime, _endTime); |
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double maxY = report.getMaxY(); |
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if (!report.isScaled()) { |
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maxY = plotData.getMaxY(); |
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} |
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BufferedImage img = chart.drawChart(plotData, SHTMLLayout.CHART_WIDTH, SHTMLLayout.CHART_HEIGHT, 24, 10, maxY); |
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IscreamChartWriter imgWriter = new IscreamChartWriter(); |
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IscreamFilePlacer placer = new IscreamFilePlacer(_webDir); |
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File destination = placer.makeDirs(_dateDir, machine, reportField); |
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imgWriter.writeChart(img, new File(destination, "chart.gif")); |
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System.out.println("[DEBUG]Point count: " + plotData.countPoints()); |
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} |
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|
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} |
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|
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private Statement _stmt = null; |
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private String _webDir; |
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private String _dateDir; |
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private long _startTime; |
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private long _endTime; |
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} |
