Mercurial > dive4elements > river
comparison 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> |
|---|---|
| date | Fri, 26 Aug 2011 14:58:35 +0000 |
| parents | |
| children | af73f196eccc |
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| 1094:b1c6d945848d | 1095:f465785ed1ae |
|---|---|
| 1 package de.intevation.flys.utils; | |
| 2 | |
| 3 import gnu.trove.TDoubleArrayList; | |
| 4 | |
| 5 import de.intevation.flys.artifacts.FLYSArtifact; | |
| 6 | |
| 7 | |
| 8 public class FLYSUtils { | |
| 9 | |
| 10 public static enum KM_MODE { RANGE, LOCATIONS, NONE }; | |
| 11 | |
| 12 | |
| 13 private FLYSUtils() { | |
| 14 } | |
| 15 | |
| 16 | |
| 17 public static KM_MODE getKmRangeMode(FLYSArtifact flys) { | |
| 18 String mode = flys.getDataAsString("ld_mode"); | |
| 19 | |
| 20 if (mode == null || mode.length() == 0) { | |
| 21 return KM_MODE.NONE; | |
| 22 } | |
| 23 else if (mode.equals("distance")) { | |
| 24 return KM_MODE.RANGE; | |
| 25 } | |
| 26 else if (mode.equals("locations")) { | |
| 27 return KM_MODE.LOCATIONS; | |
| 28 } | |
| 29 else { | |
| 30 return KM_MODE.NONE; | |
| 31 } | |
| 32 } | |
| 33 | |
| 34 | |
| 35 public static double[] getKmRange(FLYSArtifact flys) { | |
| 36 switch (getKmRangeMode(flys)) { | |
| 37 case RANGE: { | |
| 38 return getKmFromTo(flys); | |
| 39 } | |
| 40 | |
| 41 case LOCATIONS: { | |
| 42 double[] locs = getLocations(flys); | |
| 43 return new double[] { locs[0], locs[locs.length-1] }; | |
| 44 } | |
| 45 | |
| 46 case NONE: { | |
| 47 double[] locs = getLocations(flys); | |
| 48 if (locs != null) { | |
| 49 return new double[] { locs[0], locs[locs.length-1] }; | |
| 50 } | |
| 51 else { | |
| 52 return getKmFromTo(flys); | |
| 53 } | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 return new double[] { Double.NaN, Double.NaN }; | |
| 58 } | |
| 59 | |
| 60 | |
| 61 public static double[] getKmFromTo(FLYSArtifact flys) { | |
| 62 String strFrom = flys.getDataAsString("ld_from"); | |
| 63 String strTo = flys.getDataAsString("ld_to"); | |
| 64 | |
| 65 if (strFrom == null || strTo == null) { | |
| 66 return null; | |
| 67 } | |
| 68 | |
| 69 try { | |
| 70 return new double[] { | |
| 71 Double.parseDouble(strFrom), | |
| 72 Double.parseDouble(strTo) }; | |
| 73 } | |
| 74 catch (NumberFormatException nfe) { | |
| 75 return null; | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 | |
| 80 public static double[] getLocations(FLYSArtifact flys) { | |
| 81 String locationStr = flys.getDataAsString("ld_locations"); | |
| 82 | |
| 83 if (locationStr == null || locationStr.length() == 0) { | |
| 84 return null; | |
| 85 } | |
| 86 | |
| 87 String[] tmp = locationStr.split(" "); | |
| 88 TDoubleArrayList locations = new TDoubleArrayList(); | |
| 89 | |
| 90 for (String l: tmp) { | |
| 91 try { | |
| 92 locations.add(Double.parseDouble(l)); | |
| 93 } | |
| 94 catch (NumberFormatException nfe) { | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 locations.sort(); | |
| 99 | |
| 100 return locations.toNativeArray(); | |
| 101 } | |
| 102 } |