Mercurial > dive4elements > river
changeset 2383:6605dcd6745f
Added a method to build a map from gauge stations to the datums of the gauges.
flys-backend/trunk@3907 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Fri, 03 Feb 2012 15:25:18 +0000 |
| parents | c5791de0c495 |
| children | 385170ff7b34 |
| files | flys-backend/ChangeLog flys-backend/src/main/java/de/intevation/flys/model/River.java |
| diffstat | 2 files changed, 37 insertions(+), 0 deletions(-) [+] |
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--- a/flys-backend/ChangeLog Thu Jan 19 13:36:06 2012 +0000 +++ b/flys-backend/ChangeLog Fri Feb 03 15:25:18 2012 +0000 @@ -1,3 +1,10 @@ +2012-01-18 Sascha L. Teichmann <sascha.teichmann@intevation.de> + + * src/main/java/de/intevation/flys/model/River.java(getGaugeDatumsKMs): + New method to build a map of gauge stattion km to + the datums (PNP) of the gauge. Useful look if a km + is a gauge station. + 2012-01-18 Sascha L. Teichmann <sascha.teichmann@intevation.de> * src/main/java/de/intevation/flys/model/FastAnnotations.java:
--- a/flys-backend/src/main/java/de/intevation/flys/model/River.java Thu Jan 19 13:36:06 2012 +0000 +++ b/flys-backend/src/main/java/de/intevation/flys/model/River.java Fri Feb 03 15:25:18 2012 +0000 @@ -17,6 +17,9 @@ import javax.persistence.GenerationType; import java.util.List; +import java.util.Comparator; +import java.util.Map; +import java.util.TreeMap; import org.hibernate.Session; import org.hibernate.Query; @@ -31,6 +34,18 @@ { public static final MathContext PRECISION = new MathContext(6); + public static final double EPSILON = 1e-5; + + public static final Comparator KM_CMP = new Comparator<Double>() { + @Override + public int compare(Double a, Double b) { + double diff = a - b; + if (diff < -EPSILON) return -1; + if (diff > EPSILON) return +1; + return 0; + } + }; + private Integer id; private String name; @@ -258,5 +273,20 @@ return minmax; } + + public Map<Double, Double> getGaugeDatumsKMs() { + List<Gauge> gauges = getGauges(); + Map result = new TreeMap<Double, Double>(KM_CMP); + + for (Gauge gauge: gauges) { + BigDecimal km = gauge.getStation(); + BigDecimal datum = gauge.getDatum(); + if (km != null && datum != null) { + result.put(km.doubleValue(), datum.doubleValue()); + } + } + + return result; + } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :