--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/flood_duration/FloodDurationExporter.java	Thu Jun 14 15:12:25 2018 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/flood_duration/FloodDurationExporter.java	Thu Jun 14 16:56:31 2018 +0200
@@ -9,21 +9,14 @@
 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.AbstractCalculationExportableResult;
+import org.dive4elements.river.artifacts.common.AbstractCommonExporter;
+import org.dive4elements.river.artifacts.common.ExportContextCSV;
 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;
@@ -35,149 +28,31 @@
  * @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);
-    }
+public class FloodDurationExporter extends AbstractCommonExporter<FloodDurationCalculationResults> {
 
     @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()]));
-    }
+    protected void doWritePdf(final OutputStream out, final FloodDurationCalculationResults results) {
 
-    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++) {
+        // TODO: Move to super (hier ist aber spezieller code drin...)
+        try {
+            final ExportContextCSV exportContextCSV = new ExportContextCSV(this.context, null);
 
-                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");
-        }
+            final JasperReporter reporter = new JasperReporter();
 
-        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) {
+            for (final AbstractCalculationExportableResult<FloodDurationCalculationResults> result : results.getResults()) {
+                final MetaAndTableJRDataSource source = new MetaAndTableJRDataSource();
+                getHelper().addJRMetaDataUSINFO(source, results);
 
-        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");
+                final JasperDesigner design = result.addReport(exportContextCSV, results, reporter, source);
+                if (result instanceof FloodDurationCalculationResult) {
+                    final int wlCount = ((FloodDurationCalculationResult) result).getWaterlevelCount();
+                    if (wlCount == 0 || wlCount == 2) {
+                        design.removeColumn("wOpt");
+                        design.removeColumn("qOpt");
+                        design.removeColumn("bezOpt");
+                        design.removeColumn("durOpt");
+                    }
+                }
             }
 
             reporter.exportPDF(out);
@@ -185,53 +60,40 @@
         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();
+    protected void doWriteCSVData(final CSVWriter writer, final FloodDurationCalculationResults results) {
+        // TODO: Diesen Ablauf in super?
 
-        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;
+        // TODO: move results into context?
+        final ExportContextCSV exportContextCSV = new ExportContextCSV(this.context, writer);
 
-            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));
+        getLog().info("writeCSVData");
 
-        }
+        /* write as csv */
+        exportContextCSV.writeCSVGlobalMetadataDefaults(results); // ggf auslagern innerhalb dieser Klasse
 
-        source.addMetaData("gauge_header", SInfoResultType.gaugeLabel.getPdfHeader(this.context.getMeta()));
-        source.addMetaData("location_header", SInfoResultType.location.getPdfHeader(this.context.getMeta()));
+        // writer.writeNext(new String[] { "" }); // break line HERE to avoid redundance
+
+        final RiverInfo river = results.getRiver();
+
+        final Class<?> lastResultType = null;
+
+        for (final AbstractCalculationExportableResult<FloodDurationCalculationResults> result : results.getResults()) {
+
+            final Class<?> resultType = result.getClass();
+            if (lastResultType == null || lastResultType != resultType) {
+                exportContextCSV.writeBlankLine();
+                result.writeCSVHeader(exportContextCSV, results, river);
+                exportContextCSV.writeBlankLine();
+            } else
+                exportContextCSV.writeCSVLine(new String[] { "#" });
+
+            result.writeCsv(exportContextCSV, results);
+        }
 
     }
 
-    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();
-    }
-
 }
\ No newline at end of file