Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FastCrossSectionChunk.java @ 4578:8304f982984f
Merged
author | Christian Lins <christian.lins@intevation.de> |
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date | Tue, 27 Nov 2012 15:59:26 +0100 |
parents | 5642a83420f2 |
children |
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package de.intevation.flys.artifacts.model; import java.util.List; import java.util.Collections; import java.io.Serializable; import de.intevation.flys.model.CrossSection; import de.intevation.flys.model.FastCrossSectionLine; import org.apache.log4j.Logger; public class FastCrossSectionChunk implements Serializable { private static Logger log = Logger.getLogger(FastCrossSectionChunk.class); public static final String PREFIX = "FCSC:"; public static final double KM_RANGE = 1.0; protected double startKm; protected int crossSectionId; protected List<FastCrossSectionLine> crossSectionLines; public FastCrossSectionChunk() { } public FastCrossSectionChunk(CrossSection cs, double km) { crossSectionId = cs.getId(); startKm = Math.floor(km); double stopKm = startKm + KM_RANGE; long startTime = System.currentTimeMillis(); crossSectionLines = cs.getFastLines(startKm, stopKm); long stopTime = System.currentTimeMillis(); if (log.isDebugEnabled()) { log.debug("Fetching cross section lines took " + (float)(stopTime-startTime)/1000f + " secs."); } } public FastCrossSectionLine getCrossSectionLine(double km) { FastCrossSectionLine key = new FastCrossSectionLine(km); int pos = Collections.binarySearch( crossSectionLines, key, FastCrossSectionLine.KM_CMP); return pos < 0 ? null : crossSectionLines.get(pos); } public static String createHashKey(CrossSection cs, double km) { return PREFIX + cs.getId() + ":" + (int)Math.floor(km); } public String getHashKey() { return PREFIX + crossSectionId + ":" + (int)Math.floor(startKm); } public double getStartKm() { return startKm; } public void setStartKm(double startKm) { this.startKm = startKm; } public double getStopKm() { return startKm + KM_RANGE; } public int getCrossSectionId() { return crossSectionId; } public void setCrossSectionId(int crossSectionId) { this.crossSectionId = crossSectionId; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :