--- a/flys-artifacts/src/main/java/de/intevation/flys/exports/HistoricalDischargeCurveExporter.java	Tue Feb 07 09:58:15 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/exports/HistoricalDischargeCurveExporter.java	Tue Feb 07 10:29:39 2012 +0000
@@ -6,6 +6,9 @@
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Locale;
 
 import org.w3c.dom.Document;
 
@@ -13,6 +16,13 @@
 
 import au.com.bytecode.opencsv.CSVWriter;
 
+import net.sf.jasperreports.engine.JasperExportManager;
+import net.sf.jasperreports.engine.JasperFillManager;
+import net.sf.jasperreports.engine.JasperPrint;
+import net.sf.jasperreports.engine.JRException;
+
+import de.intevation.artifacts.common.utils.Config;
+
 import de.intevation.artifacts.CallContext;
 import de.intevation.artifacts.CallMeta;
 
@@ -20,6 +30,7 @@
 import de.intevation.flys.artifacts.model.CalculationResult;
 import de.intevation.flys.artifacts.model.Timerange;
 import de.intevation.flys.artifacts.model.WQTimerange;
+import de.intevation.flys.artifacts.model.WQTJRDataSource;
 import de.intevation.flys.artifacts.resources.Resources;
 import de.intevation.flys.utils.FLYSUtils;
 import de.intevation.flys.utils.Formatter;
@@ -49,6 +60,11 @@
     public static final String CSV_GAUGENAME_HEADER =
         "export.historical.discharge.csv.header.gaugename";
 
+    public static final String PDF_HEADER_MODE =
+        "export.historical.discharge.pdf.mode";
+
+    public static final String JASPER_FILE =
+        "export.historical.discharge.pdf.file";
 
     protected List<WQTimerange[]> data;
 
@@ -94,7 +110,28 @@
 
     @Override
     protected void writePDF(OutputStream out) {
-        logger.warn("TODO: IMPLEMENT ME!");
+        WQTJRDataSource source = createJRData();
+
+        String jasperFile = Resources.getMsg(
+                                context.getMeta(),
+                                JASPER_FILE,
+                                "/jasper/historical-discharge_en.jasper");
+        String confPath = Config.getConfigDirectory().toString();
+
+        Map parameters = new HashMap();
+        parameters.put("ReportTitle", "Exported Data");
+        try {
+            JasperPrint print = JasperFillManager.fillReport(
+                confPath + jasperFile,
+                parameters,
+                source);
+            JasperExportManager.exportReportToPdfStream(print, out);
+        }
+        catch(JRException je) {
+            logger.warn("Error generating PDF Report!");
+            je.printStackTrace();
+        }
+
     }
 
 
@@ -138,6 +175,66 @@
     }
 
 
+    protected WQTJRDataSource createJRData() {
+        WQTJRDataSource source = new WQTJRDataSource();
+
+        addMetaData(source);
+        for (WQTimerange[] arr: data) {
+            for (WQTimerange wqt: arr) {
+                addWQTData(source, wqt);
+            }
+        }
+
+        return source;
+    }
+
+
+    protected void addMetaData(WQTJRDataSource source) {
+        CallMeta meta = context.getMeta();
+
+        FLYSArtifact flys = (FLYSArtifact) master;
+
+        source.addMetaData ("river", FLYSUtils.getRivername(flys));
+
+        Locale locale = Resources.getLocale(meta);
+        DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, locale);
+
+        source.addMetaData("date", df.format(new Date()));
+
+        source.addMetaData("calculation", Resources.getMsg(
+                                            locale,
+                                            PDF_HEADER_MODE,
+                                            "Historical Discharge"));
+    }
+
+
+    protected void addWQTData(WQTJRDataSource source, WQTimerange wqt) {
+        DateFormat   df = Formatter.getShortDateFormat(context);
+        NumberFormat wf = Formatter.getHistoricalDischargeW(context);
+        NumberFormat qf = Formatter.getHistoricalDischargeQ(context);
+
+        double[] wq = new double[2];
+
+        String gaugeName = getReferenceGaugename();
+
+        for (int i = 0, n = wqt.size(); i < n; i++) {
+            Timerange tr = wqt.getTimerange(i);
+            Date   start = new Date(tr.getStart());
+            Date     end = new Date(tr.getEnd());
+
+            wqt.get(i, wq);
+
+            source.addData(new String[] {
+                df.format(start) + " - " + df.format(end),
+                wf.format(wq[0]),
+                qf.format(wq[1]),
+                "TODO: Difference to reference curve",
+                gaugeName
+            });
+        }
+    }
+
+
     public String getReferenceGaugename() {
         return FLYSUtils.getReferenceGaugeName((FLYSArtifact) master);
     }