Mercurial > dive4elements > river
comparison flys-client/src/main/java/de/intevation/flys/client/shared/DoubleUtils.java @ 1279:af6ad7522351
Bugfix: #336 Improved determination of min/max KM values - code moved to ArtifactDescription.
flys-client/trunk@2861 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Thu, 29 Sep 2011 09:14:41 +0000 |
| parents | |
| children | ff8312688cd5 |
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| 1278:4c3329db2536 | 1279:af6ad7522351 |
|---|---|
| 1 package de.intevation.flys.client.shared; | |
| 2 | |
| 3 | |
| 4 public final class DoubleUtils { | |
| 5 | |
| 6 public static final String DEFAULT_DELIM = " "; | |
| 7 | |
| 8 | |
| 9 private DoubleUtils() { | |
| 10 } | |
| 11 | |
| 12 | |
| 13 public static Double getDouble(String value) { | |
| 14 try { | |
| 15 return Double.valueOf(value); | |
| 16 } | |
| 17 catch (NumberFormatException nfe) { | |
| 18 // do nothing | |
| 19 } | |
| 20 | |
| 21 return null; | |
| 22 } | |
| 23 | |
| 24 | |
| 25 public static double[] getMinMax(String value) { | |
| 26 return getMinMax(value, DEFAULT_DELIM); | |
| 27 } | |
| 28 | |
| 29 | |
| 30 public static double[] getMinMax(String value, String delim) { | |
| 31 if (value == null) { | |
| 32 return null; | |
| 33 } | |
| 34 | |
| 35 String[] values = value.split(delim); | |
| 36 | |
| 37 int len = values != null ? values.length : 0; | |
| 38 double[] mm = new double[] { Double.MAX_VALUE, -Double.MAX_VALUE }; | |
| 39 | |
| 40 for (int i = 0; i < len; i++) { | |
| 41 Double d = getDouble(values[i]); | |
| 42 | |
| 43 if (d != null) { | |
| 44 mm[0] = mm[0] < d ? mm[0] : d; | |
| 45 mm[1] = mm[1] > d ? mm[1] : d; | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 return mm[0] != Double.MAX_VALUE && mm[1] != -Double.MAX_VALUE | |
| 50 ? mm | |
| 51 : null; | |
| 52 } | |
| 53 } | |
| 54 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |