--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/src/main/java/org/dive4elements/river/importer/uinfo/parsers/SalixParser.java	Tue Apr 03 10:18:30 2018 +0200
@@ -0,0 +1,152 @@
+/* Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
+ * Software engineering by
+ *  Björnsen Beratende Ingenieure GmbH
+ *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
+ *
+ * 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.importer.uinfo.parsers;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.EnumMap;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.apache.log4j.Logger;
+import org.dive4elements.river.importer.Config;
+import org.dive4elements.river.importer.ImportRiver;
+import org.dive4elements.river.importer.common.AbstractParser;
+import org.dive4elements.river.importer.common.ParsingState;
+import org.dive4elements.river.importer.uinfo.importitem.SalixKmLineImport;
+import org.dive4elements.river.importer.uinfo.importitem.SalixSeriesImport;
+import org.dive4elements.river.model.uinfo.Salix;
+import org.dive4elements.river.model.uinfo.SalixValue;
+
+/**
+ * Reads and parses a salix file
+ *
+ * @author Matthias Schäfer
+ *
+ */
+public class SalixParser extends AbstractParser<Salix, SalixValue, SalixKmLineImport, SalixSeriesImport> {
+
+    /***** FIELDS *****/
+
+    private static final Logger log = Logger.getLogger(SalixParser.class);
+
+    private static final String IMPORT_FILENAME = "Salix-Linie.csv";
+
+    private static final Pattern META_EVALUATOR = Pattern.compile("^#\\sAuswerter:\\s*([^;]*).*", Pattern.CASE_INSENSITIVE);
+
+    private enum ColTitlePattern {
+        FACTOR("Salix.Fa.tor\\s*\\[(.*)\\].*"), //
+        MWMNW("\\(MW-MNW\\).*\\[(.*)\\].*");
+
+        private final Pattern pattern;
+
+        ColTitlePattern(final String regexp) {
+            this.pattern = Pattern.compile(regexp, Pattern.CASE_INSENSITIVE);
+        }
+
+        public Pattern getPattern() {
+            return this.pattern;
+        }
+    }
+
+    private final EnumMap<ColTitlePattern, Integer> cols = new EnumMap<>(ColTitlePattern.class);
+
+
+    /***** CONSTRUCTORS *****/
+
+    public SalixParser(final File importPath, final File rootRelativePath, final ImportRiver river) {
+        super(importPath, rootRelativePath, river);
+    }
+
+
+    /***** METHODS *****/
+
+    @Override
+    protected Logger getLog() {
+        return log;
+    }
+
+    /**
+     * Whether this import type shall be skipped
+     */
+    public static boolean shallSkip() {
+        return Config.INSTANCE.skipUInfoSalix();
+    }
+
+    /**
+     * Creates a list of parsers for all salix import files in a directory
+     */
+    public static List<SalixParser> createParsers(final File importDir, final File relativeDir, final ImportRiver river) {
+        final List<SalixParser> parsers = new ArrayList<>();
+        parsers.add(new SalixParser(new File(importDir, IMPORT_FILENAME), new File(relativeDir, IMPORT_FILENAME), river));
+        return parsers;
+    }
+
+    @Override
+    protected SalixSeriesImport createSeriesImport(final String filename) {
+        return new SalixSeriesImport(filename);
+    }
+
+    @Override
+    protected boolean handleMetaOther() {
+        if (handleMetaEvaluator())
+            return true;
+        else
+            return false;
+    }
+
+    private boolean handleMetaEvaluator() {
+        final Matcher m = META_EVALUATOR.matcher(this.currentLine);
+        if (m.matches()) {
+            this.metaPatternsMatched.add(META_EVALUATOR);
+            this.seriesHeader.setEvaluationBy(parseMetaInfo(m.group(1).trim()));
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    protected boolean handleMetaColumnTitles() {
+        if (!super.handleMetaColumnTitles())
+            return false;
+        for (final ColTitlePattern col : ColTitlePattern.values())
+            this.cols.put(col, -1);
+        for (int i = 1; i <= this.columnTitles.size() - 1; i++) {
+            for (final ColTitlePattern col : ColTitlePattern.values()) {
+                if (col.getPattern().matcher(this.columnTitles.get(i)).matches()) {
+                    this.cols.put(col, i);
+                    break;
+                }
+            }
+        }
+        if ((this.cols.get(ColTitlePattern.FACTOR) < 0) || (this.cols.get(ColTitlePattern.MWMNW) < 0)) {
+            logError("Column of the salix factor and/or mnw-mw-diff could not be identified");
+            this.headerParsingState = ParsingState.STOP;
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    protected SalixKmLineImport createKmLineImport(final Double km, final String[] values) {
+        if (Double.isNaN(parseDoubleWithNull(values[this.cols.get(ColTitlePattern.FACTOR)]).doubleValue())) {
+            logError("Salix factor not found in line " + this.in.getLineNumber());
+            return null;
+        }
+        if (Double.isNaN(parseDoubleWithNull(values[this.cols.get(ColTitlePattern.MWMNW)]).doubleValue())) {
+            logError("MNW-MW-diff not found in line " + this.in.getLineNumber());
+            return null;
+        }
+        return new SalixKmLineImport(km, parseDoubleWithNull(values[this.cols.get(ColTitlePattern.FACTOR)]).doubleValue(),
+                parseDoubleWithNull(values[this.cols.get(ColTitlePattern.MWMNW)]).doubleValue());
+    }
+}