Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FastCrossSectionChunk.java @ 3318:dbe2f85bf160
merged flys-artifacts/2.8
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:14:35 +0200 |
| parents | 5642a83420f2 |
| children |
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| 2987:98c7a46ec5ae | 3318:dbe2f85bf160 |
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| 1 package de.intevation.flys.artifacts.model; | |
| 2 | |
| 3 import java.util.List; | |
| 4 import java.util.Collections; | |
| 5 | |
| 6 import java.io.Serializable; | |
| 7 | |
| 8 import de.intevation.flys.model.CrossSection; | |
| 9 | |
| 10 import de.intevation.flys.model.FastCrossSectionLine; | |
| 11 | |
| 12 import org.apache.log4j.Logger; | |
| 13 | |
| 14 public class FastCrossSectionChunk | |
| 15 implements Serializable | |
| 16 { | |
| 17 private static Logger log = Logger.getLogger(FastCrossSectionChunk.class); | |
| 18 | |
| 19 public static final String PREFIX = "FCSC:"; | |
| 20 public static final double KM_RANGE = 1.0; | |
| 21 | |
| 22 protected double startKm; | |
| 23 protected int crossSectionId; | |
| 24 | |
| 25 protected List<FastCrossSectionLine> crossSectionLines; | |
| 26 | |
| 27 public FastCrossSectionChunk() { | |
| 28 } | |
| 29 | |
| 30 public FastCrossSectionChunk(CrossSection cs, double km) { | |
| 31 | |
| 32 crossSectionId = cs.getId(); | |
| 33 startKm = Math.floor(km); | |
| 34 double stopKm = startKm + KM_RANGE; | |
| 35 | |
| 36 long startTime = System.currentTimeMillis(); | |
| 37 | |
| 38 crossSectionLines = cs.getFastLines(startKm, stopKm); | |
| 39 | |
| 40 long stopTime = System.currentTimeMillis(); | |
| 41 | |
| 42 if (log.isDebugEnabled()) { | |
| 43 log.debug("Fetching cross section lines took " + | |
| 44 (float)(stopTime-startTime)/1000f + " secs."); | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 public FastCrossSectionLine getCrossSectionLine(double km) { | |
| 49 FastCrossSectionLine key = new FastCrossSectionLine(km); | |
| 50 int pos = Collections.binarySearch( | |
| 51 crossSectionLines, key, FastCrossSectionLine.KM_CMP); | |
| 52 return pos < 0 ? null : crossSectionLines.get(pos); | |
| 53 } | |
| 54 | |
| 55 public static String createHashKey(CrossSection cs, double km) { | |
| 56 return PREFIX + cs.getId() + ":" + (int)Math.floor(km); | |
| 57 } | |
| 58 | |
| 59 public String getHashKey() { | |
| 60 return PREFIX + crossSectionId + ":" + (int)Math.floor(startKm); | |
| 61 } | |
| 62 | |
| 63 public double getStartKm() { | |
| 64 return startKm; | |
| 65 } | |
| 66 | |
| 67 public void setStartKm(double startKm) { | |
| 68 this.startKm = startKm; | |
| 69 } | |
| 70 | |
| 71 public double getStopKm() { | |
| 72 return startKm + KM_RANGE; | |
| 73 } | |
| 74 | |
| 75 public int getCrossSectionId() { | |
| 76 return crossSectionId; | |
| 77 } | |
| 78 | |
| 79 public void setCrossSectionId(int crossSectionId) { | |
| 80 this.crossSectionId = crossSectionId; | |
| 81 } | |
| 82 } | |
| 83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |