Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FastCrossSectionChunk.java @ 4187:21f4e4b79121

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Refactor GaugeDischargeCurveFacet to be able to set a facet name For adding another output of the GaugeDischargeCurveArtifact it is necessary to provide to facet instances with different names. Therefore the GaugeDischargeCurveFacet is extended to set the facet name in the constructor.
author Björn Ricks <bjoern.ricks@intevation.de>
date Fri, 19 Oct 2012 13:25:49 +0200
parents 5642a83420f2
children
rev   line source
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dc28ea60b53d Added cached/chunked access to cross section lines. TODO: Use the FastCrossSectionLines.
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1 package de.intevation.flys.artifacts.model;
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3 import java.util.List;
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4 import java.util.Collections;
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6 import java.io.Serializable;
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7
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8 import de.intevation.flys.model.CrossSection;
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9
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10 import de.intevation.flys.model.FastCrossSectionLine;
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11
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12 import org.apache.log4j.Logger;
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14 public class FastCrossSectionChunk
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15 implements Serializable
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16 {
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17 private static Logger log = Logger.getLogger(FastCrossSectionChunk.class);
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18
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19 public static final String PREFIX = "FCSC:";
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20 public static final double KM_RANGE = 1.0;
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22 protected double startKm;
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23 protected int crossSectionId;
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25 protected List<FastCrossSectionLine> crossSectionLines;
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27 public FastCrossSectionChunk() {
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28 }
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30 public FastCrossSectionChunk(CrossSection cs, double km) {
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32 crossSectionId = cs.getId();
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33 startKm = Math.floor(km);
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34 double stopKm = startKm + KM_RANGE;
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35
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36 long startTime = System.currentTimeMillis();
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38 crossSectionLines = cs.getFastLines(startKm, stopKm);
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40 long stopTime = System.currentTimeMillis();
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41
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42 if (log.isDebugEnabled()) {
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43 log.debug("Fetching cross section lines took " +
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44 (float)(stopTime-startTime)/1000f + " secs.");
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45 }
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46 }
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48 public FastCrossSectionLine getCrossSectionLine(double km) {
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49 FastCrossSectionLine key = new FastCrossSectionLine(km);
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50 int pos = Collections.binarySearch(
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51 crossSectionLines, key, FastCrossSectionLine.KM_CMP);
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52 return pos < 0 ? null : crossSectionLines.get(pos);
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53 }
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55 public static String createHashKey(CrossSection cs, double km) {
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56 return PREFIX + cs.getId() + ":" + (int)Math.floor(km);
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57 }
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59 public String getHashKey() {
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60 return PREFIX + crossSectionId + ":" + (int)Math.floor(startKm);
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61 }
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63 public double getStartKm() {
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64 return startKm;
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65 }
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67 public void setStartKm(double startKm) {
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68 this.startKm = startKm;
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69 }
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71 public double getStopKm() {
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72 return startKm + KM_RANGE;
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73 }
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75 public int getCrossSectionId() {
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76 return crossSectionId;
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77 }
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79 public void setCrossSectionId(int crossSectionId) {
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80 this.crossSectionId = crossSectionId;
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81 }
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82 }
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83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org