--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/utils/FLYSUtils.java	Fri Aug 26 14:58:35 2011 +0000
@@ -0,0 +1,102 @@
+package de.intevation.flys.utils;
+
+import gnu.trove.TDoubleArrayList;
+
+import de.intevation.flys.artifacts.FLYSArtifact;
+
+
+public class FLYSUtils {
+
+    public static enum KM_MODE { RANGE, LOCATIONS, NONE };
+
+
+    private FLYSUtils() {
+    }
+
+
+    public static KM_MODE getKmRangeMode(FLYSArtifact flys) {
+        String mode  = flys.getDataAsString("ld_mode");
+
+        if (mode == null || mode.length() == 0) {
+            return KM_MODE.NONE;
+        }
+        else if (mode.equals("distance"))  {
+            return KM_MODE.RANGE;
+        }
+        else if (mode.equals("locations")) {
+            return KM_MODE.LOCATIONS;
+        }
+        else {
+            return KM_MODE.NONE;
+        }
+    }
+
+
+    public static double[] getKmRange(FLYSArtifact flys) {
+        switch (getKmRangeMode(flys)) {
+            case RANGE: {
+                return getKmFromTo(flys);
+            }
+
+            case LOCATIONS: {
+                double[] locs = getLocations(flys);
+                return new double[] { locs[0], locs[locs.length-1] };
+            }
+
+            case NONE: {
+                double[] locs = getLocations(flys);
+                if (locs != null) {
+                    return new double[] { locs[0], locs[locs.length-1] };
+                }
+                else {
+                    return getKmFromTo(flys);
+                }
+            }
+        }
+
+        return new double[] { Double.NaN, Double.NaN };
+    }
+
+
+    public static double[] getKmFromTo(FLYSArtifact flys) {
+        String strFrom = flys.getDataAsString("ld_from");
+        String strTo   = flys.getDataAsString("ld_to");
+
+        if (strFrom == null || strTo == null) {
+            return null;
+        }
+
+        try {
+            return new double[] {
+                Double.parseDouble(strFrom),
+                Double.parseDouble(strTo) };
+        }
+        catch (NumberFormatException nfe) {
+            return null;
+        }
+    }
+
+
+    public static double[] getLocations(FLYSArtifact flys) {
+        String locationStr = flys.getDataAsString("ld_locations");
+
+        if (locationStr == null || locationStr.length() == 0) {
+            return null;
+        }
+
+        String[] tmp               = locationStr.split(" ");
+        TDoubleArrayList locations = new TDoubleArrayList();
+
+        for (String l: tmp) {
+            try {
+                locations.add(Double.parseDouble(l));
+            }
+            catch (NumberFormatException nfe) {
+            }
+        }
+
+        locations.sort();
+
+        return locations.toNativeArray();
+    }
+}