Mercurial > dive4elements > river
diff flys-artifacts/src/main/java/de/intevation/flys/utils/FLYSUtils.java @ 1095:f465785ed1ae
Refactored the code to fetch the km range/locations into a utility class.
flys-artifacts/trunk@2598 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Fri, 26 Aug 2011 14:58:35 +0000 |
parents | |
children | af73f196eccc |
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--- /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(); + } +}