--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/flood_duration/FloodDurationExporter.java	Tue Jun 12 10:23:23 2018 +0200
@@ -0,0 +1,237 @@
+/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
+ * Software engineering by Intevation GmbH
+ *
+ * This file is Free Software under the GNU AGPL (>=v3)
+ * and comes with ABSOLUTELY NO WARRANTY! Check out the
+ * documentation coming with Dive4Elements River for details.
+ */
+
+package org.dive4elements.river.artifacts.sinfo.flood_duration;
+
+import java.io.OutputStream;
+import java.text.NumberFormat;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+import org.dive4elements.river.artifacts.common.GeneralResultType;
+import org.dive4elements.river.artifacts.common.JasperDesigner;
+import org.dive4elements.river.artifacts.common.JasperReporter;
+import org.dive4elements.river.artifacts.common.MetaAndTableJRDataSource;
+import org.dive4elements.river.artifacts.common.ResultRow;
+import org.dive4elements.river.artifacts.sinfo.common.AbstractSInfoExporter;
+import org.dive4elements.river.artifacts.sinfo.common.SInfoResultType;
+import org.dive4elements.river.artifacts.sinfo.util.RiverInfo;
+import org.dive4elements.river.artifacts.sinfo.util.WstInfo;
+
+import au.com.bytecode.opencsv.CSVWriter;
+import net.sf.jasperreports.engine.JRException;
+
+/**
+ * Generates different output formats (csv, pdf) of data that resulted from a flow depths min/max computation.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ * @author Gernot Belger
+ */
+// REMARK: must be public because its registered in generators.xml
+public class FloodDurationExporter extends AbstractSInfoExporter<FloodDurationCalculationResult, FloodDurationCalculationResults> {
+
+    /** The log used in this exporter. */
+    private static Logger log = Logger.getLogger(FloodDurationExporter.class);
+
+    private final String getJasperFile(final int waterlevelCount) {
+        if (waterlevelCount <= 1)
+            return "/jasper/templates/sinfo.floodduration.jrxml"; // TODO use jrxml-path all over the project
+        else
+            return "/jasper/templates/sinfo.floodduration2.jrxml";
+    }
+
+    private static final int maxPdfWspls = 3;
+
+    @Override
+    protected Logger getLog() {
+        return log;
+    }
+
+    @Override
+    protected void writeCSVGlobalMetadata(final CSVWriter writer, final FloodDurationCalculationResults results) {
+        log.info("FloodDurationExporter.writeCSVMeta");
+        super.writeCSVGlobalMetadataDefaults(writer, results);
+    }
+
+    @Override
+    protected void writeCSVResultMetadata(final CSVWriter writer, final FloodDurationCalculationResults results, final FloodDurationCalculationResult result) {
+
+        final WstInfo wst = result.getWst();
+        super.writeCSVWaterlevelMetadata(writer, wst); // TODO: Abweichend vom Allgemeinen werden hier andere Felder benötigt bei den Wasserspiegellagen
+
+        writer.writeNext(new String[] { "" }); // break line
+
+    }
+
+    /**
+     * Write the header, with different headings depending on whether at a
+     * gauge or at a location.
+     *
+     * @param river
+     * @param useTkh
+     */
+    @Override
+    protected void writeCSVHeader(final CSVWriter writer, final FloodDurationCalculationResults results, final RiverInfo river) {
+        log.info("FloodDurationExporter.writeCSVHeader");
+
+        final Collection<String> header = new ArrayList<>(99);
+
+        header.add(msg(GeneralResultType.station.getCsvHeader()));
+        header.add(msg(SInfoResultType.riverside.getCsvHeader()));
+        header.add(msg(SInfoResultType.inundationduration.getCsvHeader()));
+        header.add(msg(SInfoResultType.inundationdurationq.getCsvHeader()));
+        header.add(msg(SInfoResultType.infrastructureHeight.getCsvHeader()));
+        header.add(msg(SInfoResultType.infrastructuretype.getCsvHeader()));
+        // add dynamic headers
+        final int waterlevelCount = getWaterlevelCount();
+        for (int i = 0; i < waterlevelCount; i++) {
+            final int naturalIndex = i + 1;
+            final String appendIndex = new StringBuilder().append("_").append(naturalIndex).toString();
+            final Object[] args = new Object[] { appendIndex };
+            // new StringBuilder().append('\u2081').toString(); // schlechter UTF-8-Support für subscript ints
+            header.add(msg(DurationWaterlevel.getHeaderW(), new Object[] { appendIndex, "results.getRiver().getWstUnit()" }));
+            header.add(msg(DurationWaterlevel.getHeaderFloodDurPerYear(), args));
+            header.add(msg(DurationWaterlevel.getHeaderQ(), args));
+            header.add(msg(DurationWaterlevel.getHeaderBezeichn(), args));
+        }
+
+        header.add(msg(SInfoResultType.gaugeLabel.getCsvHeader()));
+        header.add(msg(SInfoResultType.location.getCsvHeader()));
+
+        writer.writeNext(header.toArray(new String[header.size()]));
+    }
+
+    private int getWaterlevelCount() {
+        final FloodDurationCalculationResults results = getData();
+        if (results != null) {
+            final List<FloodDurationCalculationResult> list = results.getResults();
+            if (list != null && list.size() > 0) {
+                final FloodDurationCalculationResult result = list.get(0);
+                return result.getWaterlevelCount();
+            }
+        }
+        return 0;
+    }
+
+    @Override
+    protected String[] formatRow(final FloodDurationCalculationResults results, final ResultRow row, final ExportMode mode) {
+
+        final Collection<String> lines = new ArrayList<>(99);
+
+        lines.add(row.exportValue(this.context, GeneralResultType.station));
+        lines.add(row.exportValue(this.context, SInfoResultType.riverside));
+        lines.add(row.exportValue(this.context, SInfoResultType.inundationduration));
+        lines.add(row.exportValue(this.context, SInfoResultType.inundationdurationq));
+        lines.add(row.exportValue(this.context, SInfoResultType.infrastructureHeight));
+        lines.add(row.exportValue(this.context, SInfoResultType.infrastructuretype));
+
+        final int waterlevelcount = this.getWaterlevelCount();
+
+        final List<DurationWaterlevel> waterlevelList = (List<DurationWaterlevel>) row.getValue(SInfoResultType.customMultiRowColWaterlevel);
+        if (waterlevelList != null) {
+            final NumberFormat wFormatter = getFlowDepthFormatter();
+            final NumberFormat qFormatter = getQFormatter();
+
+            for (int i = 0; i < waterlevelList.size(); i++) {
+
+                if (i == FloodDurationExporter.maxPdfWspls && mode == ExportMode.pdf)
+                    break;
+
+                final DurationWaterlevel item = waterlevelList.get(i);
+                lines.add(item.getWFormatted(wFormatter));
+                lines.add(item.getFloodDurDaysPerYearFormatted());
+                lines.add(item.getQFormatted(qFormatter));
+                lines.add(item.getBezeichnung());
+            }
+        }
+
+        if ((waterlevelcount == 0 || waterlevelcount == 2) && mode == ExportMode.pdf) {
+            lines.add("dummy");
+            lines.add("dummy");
+            lines.add("dummy");
+            lines.add("dummy");
+        }
+
+        lines.add(row.exportValue(this.context, SInfoResultType.gaugeLabel));
+        lines.add(row.exportValue(this.context, SInfoResultType.location));
+        return lines.toArray(new String[lines.size()]);
+    }
+
+    @Override
+    protected void writePDF(final OutputStream out) {
+
+        try {
+            final MetaAndTableJRDataSource source = createJRData(this.data);
+            final JasperReporter reporter = new JasperReporter();
+            final int waterlevelCount = getWaterlevelCount();
+            final JasperDesigner design = reporter.addReport(getJasperFile(waterlevelCount), source);
+
+            if (waterlevelCount == 0 || waterlevelCount == 2) {
+                design.removeColumn("wOpt");
+                design.removeColumn("qOpt");
+                design.removeColumn("bezOpt");
+                design.removeColumn("durOpt");
+            }
+
+            reporter.exportPDF(out);
+        }
+        catch (final JRException je) {
+            getLog().warn("Error generating PDF Report!", je);
+        }
+    }
+
+    @Override
+    protected final void addJRMetaData(final MetaAndTableJRDataSource source, final FloodDurationCalculationResults results) {
+
+        /* general metadata */
+        super.addJRMetaData(source, results);
+
+        /* column headings */
+        source.addMetaData("station_header", GeneralResultType.station.getPdfHeader(this.context.getMeta()));
+        source.addMetaData("riverside_header", SInfoResultType.riverside.getPdfHeader(this.context.getMeta()));
+        source.addMetaData("inundationduration_header", SInfoResultType.inundationduration.getPdfHeader(this.context.getMeta()));
+        source.addMetaData("inundationduration_q_header", SInfoResultType.inundationdurationq.getPdfHeader(this.context.getMeta()));
+        source.addMetaData("infrastructure_height_header", SInfoResultType.infrastructureHeightFloodDur.getPdfHeader(this.context.getMeta()));
+        source.addMetaData("infrastructure_type_header", SInfoResultType.infrastructuretype.getPdfHeader(this.context.getMeta()));
+
+        // add dynamic headers
+
+        final int waterlevelCount = getWaterlevelCount() > FloodDurationExporter.maxPdfWspls ? FloodDurationExporter.maxPdfWspls : getWaterlevelCount();
+
+        if (waterlevelCount == 0 || waterlevelCount == 2) {
+            source.addMetaData("dummy", "dummy");
+            source.addMetaData("dummy", "dummy");
+            source.addMetaData("dummy", "dummy");
+            source.addMetaData("dummy", "dummy");
+        }
+
+        for (int i = 0; i < waterlevelCount; i++) {
+            final int naturalIndex = i + 1;
+
+            final Object[] args = new String[] { new StringBuilder().append("_").append(naturalIndex).toString() };
+            source.addMetaData(getPdfHeader("w", naturalIndex), msg(DurationWaterlevel.getHeaderW(), args));
+            source.addMetaData(getPdfHeader("duration", naturalIndex), msg(DurationWaterlevel.getHeaderFloodDurPerYear(), args));
+            source.addMetaData(getPdfHeader("q", naturalIndex), msg(DurationWaterlevel.getHeaderQ(), args));
+            source.addMetaData(getPdfHeader("bezeichnung", naturalIndex), msg(DurationWaterlevel.getHeaderBezeichn(), args));
+
+        }
+
+        source.addMetaData("gauge_header", SInfoResultType.gaugeLabel.getPdfHeader(this.context.getMeta()));
+        source.addMetaData("location_header", SInfoResultType.location.getPdfHeader(this.context.getMeta()));
+
+    }
+
+    private String getPdfHeader(final String rootStr, final int index) {
+        final String hd = "_header";
+        final StringBuilder builder = new StringBuilder();
+        return builder.append(rootStr).append("_").append(index).append(hd).toString();
+    }
+
+}
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