--- a/artifacts/src/main/java/org/dive4elements/river/exports/ComputedDischargeCurveExporter.java	Thu Jul 26 11:16:06 2018 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/exports/ComputedDischargeCurveExporter.java	Thu Jul 26 15:54:20 2018 +0200
@@ -9,68 +9,55 @@
 package org.dive4elements.river.exports;
 
 import java.io.OutputStream;
+import java.text.DateFormat;
 import java.text.NumberFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.List;
-import java.util.Map;
+import java.util.Date;
 import java.util.HashMap;
-import java.util.Date;
-import java.text.DateFormat;
+import java.util.List;
 import java.util.Locale;
+import java.util.Map;
 
 import org.apache.log4j.Logger;
+import org.dive4elements.artifacts.CallMeta;
+import org.dive4elements.artifacts.common.utils.Config;
+import org.dive4elements.river.artifacts.D4EArtifact;
+import org.dive4elements.river.artifacts.access.RangeAccess;
+import org.dive4elements.river.artifacts.model.CalculationResult;
+import org.dive4elements.river.artifacts.model.WKmsJRDataSource;
+import org.dive4elements.river.artifacts.model.WQ;
+import org.dive4elements.river.artifacts.model.WQKms;
+import org.dive4elements.river.artifacts.resources.Resources;
+import org.dive4elements.river.model.Gauge;
+import org.dive4elements.river.model.River;
+import org.dive4elements.river.utils.Formatter;
+import org.dive4elements.river.utils.RiverUtils;
 
 import au.com.bytecode.opencsv.CSVWriter;
-
+import net.sf.jasperreports.engine.JRException;
 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 org.dive4elements.artifacts.common.utils.Config;
-
-import org.dive4elements.artifacts.CallMeta;
-
-import org.dive4elements.river.artifacts.D4EArtifact;
-
-import org.dive4elements.river.artifacts.access.RangeAccess;
-import org.dive4elements.river.artifacts.model.CalculationResult;
-import org.dive4elements.river.artifacts.model.WQ;
-import org.dive4elements.river.artifacts.model.WQKms;
-import org.dive4elements.river.artifacts.model.WKmsJRDataSource;
-import org.dive4elements.river.artifacts.resources.Resources;
-
-import org.dive4elements.river.model.Gauge;
-import org.dive4elements.river.model.River;
-
-import org.dive4elements.river.utils.RiverUtils;
-import org.dive4elements.river.utils.Formatter;
 
 /**
  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
  */
 public class ComputedDischargeCurveExporter extends AbstractExporter {
 
-    /** The log used in this exporter.*/
-    private static Logger log =
-        Logger.getLogger(ComputedDischargeCurveExporter.class);
-
-    public static final String CSV_W_HEADER =
-        "export.computed.discharge.curve.csv.header.w";
+    /** The log used in this exporter. */
+    private static Logger log = Logger.getLogger(ComputedDischargeCurveExporter.class);
 
-    public static final String CSV_Q_HEADER =
-        "export.computed.discharge.curve.csv.header.q";
-
-    public static final String DEFAULT_CSV_W_HEADER  = "W [NN + m]";
-    public static final String DEFAULT_CSV_Q_HEADER  = "Q [m\u00b3/s]";
+    public static final String CSV_W_HEADER = "export.computed.discharge.curve.csv.header.w";
 
-    public static final String PDF_HEADER_MODE =
-        "export.computed.discharge.pdf.mode";
-    public static final String PDF_HEADER_CALC_MODE =
-        "export.computed.discharge.pdf.calc.mode";
-    public static final String JASPER_FILE =
-        "export.computed.discharge.pdf.file";
+    public static final String CSV_Q_HEADER = "common.export.csv.header.q";
+
+    public static final String DEFAULT_CSV_W_HEADER = "W [NN + m]";
+    public static final String DEFAULT_CSV_Q_HEADER = "Q [m\u00b3/s]";
+
+    public static final String PDF_HEADER_MODE = "export.computed.discharge.pdf.mode";
+    public static final String PDF_HEADER_CALC_MODE = "export.computed.discharge.pdf.calc.mode";
+    public static final String JASPER_FILE = "export.computed.discharge.pdf.file";
 
     protected List<WQKms> data;
 
@@ -81,157 +68,135 @@
     protected Date validSince;
 
     public ComputedDischargeCurveExporter() {
-        data = new ArrayList<WQKms>();
+        this.data = new ArrayList<>();
     }
 
     @Override
     protected void addData(Object d) {
         if (d instanceof CalculationResult) {
-            d = ((CalculationResult)d).getData();
+            d = ((CalculationResult) d).getData();
         }
         WQKms referenceWQ = null; // used for gauge / unit observations
-        if (d instanceof WQKms[]){
-            data.addAll(Arrays.asList((WQKms [])d));
+        if (d instanceof WQKms[]) {
+            this.data.addAll(Arrays.asList((WQKms[]) d));
             // If there is a unit mix in this list
             // we are screwed anyway.
-            referenceWQ = ((WQKms[])d)[0];
-        }
-        else if (d instanceof WQKms) {
-            data.add((WQKms)d);
-            referenceWQ = (WQKms)d;
+            referenceWQ = ((WQKms[]) d)[0];
+        } else if (d instanceof WQKms) {
+            this.data.add((WQKms) d);
+            referenceWQ = (WQKms) d;
         } else {
-            log.warn("Can't add data for export. Unkown data type " +
-                d.getClass().getName());
+            log.warn("Can't add data for export. Unkown data type " + d.getClass().getName());
             return;
         }
         if (referenceWQ != null) {
-            D4EArtifact arti = (D4EArtifact)master;
-            River river = RiverUtils.getRiver(arti);
-            riverUnit = river.getWstUnit().getName();
-            RangeAccess rangeAccess = new RangeAccess(arti);
+            final D4EArtifact arti = (D4EArtifact) this.master;
+            final River river = RiverUtils.getRiver(arti);
+            this.riverUnit = river.getWstUnit().getName();
+            final RangeAccess rangeAccess = new RangeAccess(arti);
 
-            double[] kms = rangeAccess.getKmRange();
+            final double[] kms = rangeAccess.getKmRange();
 
-            Gauge gauge = river.determineGaugeAtStation(kms[0]);
+            final Gauge gauge = river.determineGaugeAtStation(kms[0]);
             if (gauge != null) {
-                wUnit = "cm";
-                gaugeName = gauge.getName();
-                gaugeDatum = gauge.getDatum().doubleValue();
+                this.wUnit = "cm";
+                this.gaugeName = gauge.getName();
+                this.gaugeDatum = gauge.getDatum().doubleValue();
 
                 // Now convert the data to cm because we are at gauge
-                List<WQKms> newData = new ArrayList<WQKms>();
-                for (WQKms d2: data) {
-                    newData.add(new WQKms(d2.getKms(),
-                            WQ.getFixedWQforExportAtGauge(
-                                (WQ)d2,
-                                gauge.getDatum()
-                            )));
+                final List<WQKms> newData = new ArrayList<>();
+                for (final WQKms d2 : this.data) {
+                    newData.add(new WQKms(d2.getKms(), WQ.getFixedWQforExportAtGauge(d2, gauge.getDatum())));
                 }
-                data = newData; // All hail the garbage collector
+                this.data = newData; // All hail the garbage collector
 
-                validSince = gauge.fetchMasterDischargeTable()
-                    .getTimeInterval().getStartTime();
+                this.validSince = gauge.fetchMasterDischargeTable().getTimeInterval().getStartTime();
             } else {
-                gaugeName = "";
-                validSince = null;
-                gaugeDatum = Double.NaN;
+                this.gaugeName = "";
+                this.validSince = null;
+                this.gaugeDatum = Double.NaN;
             }
         }
     }
 
-    protected void writeCSVData(CSVWriter writer) {
+    @Override
+    protected void writeCSVData(final CSVWriter writer) {
         log.info("ComputedDischargeCurveExporter.writeData");
 
         writeCSVHeader(writer);
 
-        NumberFormat wf  = getWFormatter();
-        NumberFormat qf  = getQFormatter();
+        final NumberFormat wf = getWFormatter();
+        final NumberFormat qf = getQFormatter();
 
         double[] res = new double[3];
 
-        for (WQKms wqkms: data) {
-            int size = wqkms.size();
+        for (final WQKms wqkms : this.data) {
+            final int size = wqkms.size();
 
             for (int i = 0; i < size; i++) {
                 res = wqkms.get(i, res);
 
-                writer.writeNext(new String[] {
-                    wf.format(res[0]),
-                    qf.format(res[1])
-                });
+                writer.writeNext(new String[] { wf.format(res[0]), qf.format(res[1]) });
             }
         }
     }
 
-
-    protected void writeCSVHeader(CSVWriter writer) {
+    protected void writeCSVHeader(final CSVWriter writer) {
         log.debug("ComputedDischargeCurveExporter.writeCSVHeader");
 
-        RangeAccess access = new RangeAccess((D4EArtifact)master);
-        double[] km = access.getLocations();
+        final RangeAccess access = new RangeAccess((D4EArtifact) this.master);
+        final double[] km = access.getLocations();
         // If we are not at gauge (cm) use the river unit
-        String realUnit = "cm".equals(wUnit) ? "cm" : riverUnit;
-        String header =
-            msg(CSV_W_HEADER, DEFAULT_CSV_W_HEADER, new Object[] {realUnit});
+        final String realUnit = "cm".equals(this.wUnit) ? "cm" : this.riverUnit;
+        final String header = msg(CSV_W_HEADER, DEFAULT_CSV_W_HEADER, new Object[] { realUnit });
 
-        writer.writeNext(new String[] {
-            header,
-            msg(CSV_Q_HEADER, DEFAULT_CSV_Q_HEADER)
-        });
+        writer.writeNext(new String[] { header, msg(CSV_Q_HEADER, DEFAULT_CSV_Q_HEADER) });
     }
 
-
     /**
      * Returns the number formatter for W values.
      *
      * @return the number formatter for W values.
      */
+    @Override
     protected NumberFormat getWFormatter() {
-        if ("cm".equals(wUnit)) {
-            return Formatter.getFormatter(context, 0, 0);
+        if ("cm".equals(this.wUnit)) {
+            return Formatter.getFormatter(this.context, 0, 0);
         }
-        return Formatter.getComputedDischargeW(context);
+        return Formatter.getComputedDischargeW(this.context);
     }
 
-
     /**
      * Returns the number formatter for Q values.
      *
      * @return the number formatter for Q values.
      */
+    @Override
     protected NumberFormat getQFormatter() {
-        return Formatter.getComputedDischargeQ(context);
+        return Formatter.getComputedDischargeQ(this.context);
     }
 
-
     @Override
-    protected void writePDF(OutputStream out) {
-        WKmsJRDataSource source = createJRData();
+    protected void writePDF(final OutputStream out) {
+        final WKmsJRDataSource source = createJRData();
 
-        String jasperFile = Resources.getMsg(
-                                context.getMeta(),
-                                JASPER_FILE,
-                                "/jasper/computed-discharge_en.jasper");
-        String confPath = Config.getConfigDirectory().toString();
+        final String jasperFile = Resources.getMsg(this.context.getMeta(), JASPER_FILE, "/jasper/computed-discharge_en.jasper");
+        final String confPath = Config.getConfigDirectory().toString();
 
-        Map parameters = new HashMap();
+        final Map parameters = new HashMap();
         parameters.put("ReportTitle", "Exported Data");
         try {
-            JasperPrint print = JasperFillManager.fillReport(
-                confPath + jasperFile,
-                parameters,
-                source);
+            final JasperPrint print = JasperFillManager.fillReport(confPath + jasperFile, parameters, source);
             JasperExportManager.exportReportToPdfStream(print, out);
         }
-        catch(JRException je) {
+        catch (final JRException je) {
             log.warn("Error generating PDF Report!");
             je.printStackTrace();
         }
     }
 
-
     protected WKmsJRDataSource createJRData() {
-        WKmsJRDataSource source = new WKmsJRDataSource();
+        final WKmsJRDataSource source = new WKmsJRDataSource();
 
         addMetaData(source);
         addWQData(source);
@@ -239,68 +204,54 @@
         return source;
     }
 
-
-    protected void addMetaData(WKmsJRDataSource source) {
-        CallMeta meta = context.getMeta();
+    protected void addMetaData(final WKmsJRDataSource source) {
+        final CallMeta meta = this.context.getMeta();
 
-        D4EArtifact flys = (D4EArtifact) master;
-        source.addMetaData("gauge", gaugeName);
-        if (!Double.isNaN(gaugeDatum)) {
-            NumberFormat mf = Formatter.getMeterFormat(context);
-            source.addMetaData(
-                "datum", mf.format(gaugeDatum) + " " + riverUnit);
+        final D4EArtifact flys = (D4EArtifact) this.master;
+        source.addMetaData("gauge", this.gaugeName);
+        if (!Double.isNaN(this.gaugeDatum)) {
+            final NumberFormat mf = Formatter.getMeterFormat(this.context);
+            source.addMetaData("datum", mf.format(this.gaugeDatum) + " " + this.riverUnit);
         } else {
             source.addMetaData("datum", "");
         }
 
-        source.addMetaData ("river", RiverUtils.getRivername(flys));
+        source.addMetaData("river", RiverUtils.getRivername(flys));
 
-        Locale locale = Resources.getLocale(meta);
-        DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, locale);
+        final Locale locale = Resources.getLocale(meta);
+        final DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, locale);
 
         source.addMetaData("date", df.format(new Date()));
 
-        source.addMetaData("wUnit", "cm".equals(wUnit) ? "cm" : riverUnit);
+        source.addMetaData("wUnit", "cm".equals(this.wUnit) ? "cm" : this.riverUnit);
 
-        RangeAccess rangeAccess = new RangeAccess(flys);
-        double[] kms = rangeAccess.getKmRange();
-        source.addMetaData("range",
-                Formatter.getCalculationKm(context.getMeta()).format(kms[0]));
+        final RangeAccess rangeAccess = new RangeAccess(flys);
+        final double[] kms = rangeAccess.getKmRange();
+        source.addMetaData("range", Formatter.getCalculationKm(this.context.getMeta()).format(kms[0]));
 
-        if (!"cm".equals(wUnit)) {
+        if (!"cm".equals(this.wUnit)) {
             source.addMetaData("valid_since", "");
-            source.addMetaData("calculation", Resources.getMsg(
-                                                locale,
-                                                PDF_HEADER_CALC_MODE,
-                                                "Computed Discharge"));
+            source.addMetaData("calculation", Resources.getMsg(locale, PDF_HEADER_CALC_MODE, "Computed Discharge"));
         } else {
-            source.addMetaData(
-                "valid_since",
-                validSince == null ? "" : df.format(validSince));
-            source.addMetaData("calculation", Resources.getMsg(
-                                                locale,
-                                                PDF_HEADER_MODE,
-                                                "Discharge"));
+            source.addMetaData("valid_since", this.validSince == null ? "" : df.format(this.validSince));
+            source.addMetaData("calculation", Resources.getMsg(locale, PDF_HEADER_MODE, "Discharge"));
         }
     }
 
-    protected void addWQData(WKmsJRDataSource source) {
-        NumberFormat wf  = getWFormatter();
-        NumberFormat qf  = getQFormatter();
+    protected void addWQData(final WKmsJRDataSource source) {
+        final NumberFormat wf = getWFormatter();
+        final NumberFormat qf = getQFormatter();
 
         double[] res = new double[3];
 
-        for (WQKms wqkms: data) {
-            int size = wqkms.size();
+        for (final WQKms wqkms : this.data) {
+            final int size = wqkms.size();
 
             for (int i = 0; i < size; i++) {
                 res = wqkms.get(i, res);
 
-                source.addData(new String[] {
-                    "",   // Empty, the WKmsJRDtasource stores km here.
-                    wf.format(res[0]),
-                    qf.format(res[1])
-                });
+                source.addData(new String[] { "", // Empty, the WKmsJRDtasource stores km here.
+                        wf.format(res[0]), qf.format(res[1]) });
             }
         }
     }