--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/tkhstate/DefaultBedHeightsConfig.java	Tue Jul 03 13:09:46 2018 +0200
@@ -0,0 +1,104 @@
+/** 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.artifacts.sinfo.tkhstate;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+
+import org.apache.commons.lang.StringUtils;
+import org.dive4elements.artifacts.common.utils.Config;
+import org.dive4elements.river.artifacts.model.Calculation;
+import org.dive4elements.river.model.River;
+
+/**
+ * Represents the contents of the 'bedheights.properties' files.
+ *
+ * @author Gernot Belger
+ */
+final class DefaultBedHeightsConfig {
+
+    private static final String CONFIG_FILE = "sinfo_tkh_sohlhoehen_%s.properties";
+
+
+    public static class DefaultBedHeight {
+
+        public final String description;
+        public final double startKm;
+        public final double endKm;
+
+        public DefaultBedHeight(final String description, final double startKm, final double endKm) {
+            this.description = description;
+            this.startKm = startKm;
+            this.endKm = endKm;
+        }
+    }
+
+    private static DefaultBedHeightsConfig INSTANCE = new DefaultBedHeightsConfig();
+
+    public static synchronized Collection<DefaultBedHeight> getDefaults(final River river, final Calculation problems) {
+        return INSTANCE.getBedHeightDefaultsForRiver(river, problems);
+    }
+
+    private final Map<String, Collection<DefaultBedHeight>> cache = new HashMap<>();
+
+    private DefaultBedHeightsConfig() {
+    }
+
+
+    private synchronized Collection<DefaultBedHeight> getBedHeightDefaultsForRiver(final River river, final Calculation problems) {
+
+        final String rivername = river.getName();
+        if (!this.cache.containsKey(rivername)) {
+            final Collection<DefaultBedHeight> newDefaults = loadBedHeightDefaultsForRiver(river, problems);
+            this.cache.put(rivername, null);
+            return newDefaults;
+        }
+
+        return this.cache.get(rivername);
+    }
+
+    private static Collection<DefaultBedHeight> loadBedHeightDefaultsForRiver(final River river, final Calculation problems) {
+
+        try {
+            final String rivername = river.getName();
+            final String filename = String.format(CONFIG_FILE, rivername);
+
+            final Properties properties = Config.loadProperties(filename);
+
+            final Set<String> keys = properties.stringPropertyNames();
+
+            final Collection<DefaultBedHeight> defaults = new ArrayList<>(keys.size());
+
+            for (final String key : keys) {
+
+                final String value = properties.getProperty(key);
+
+                final String[] split = StringUtils.split(StringUtils.trim(value), ';');
+
+                final double startKm = Double.parseDouble(split[0]);
+                final double endKm = Double.parseDouble(split[1]);
+
+                defaults.add(new DefaultBedHeight(key, startKm, endKm));
+            }
+
+            return defaults;
+        }
+        catch (final Exception e) {
+            e.printStackTrace();
+            problems.addProblem("sinfo.bedheightsfinder.configfile.loaderror", CONFIG_FILE, e.getMessage());
+            return Collections.emptyList();
+        }
+    }
+}
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