Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/BedloadOverview.java @ 4357:11cf29eb002c
FacetTypes: New type: exreme_wq_curve_base (for the Stuetz-Q-Poits).
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 02 Nov 2012 11:58:11 +0100 |
parents | 729bd242c82e |
children |
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package de.intevation.flys.artifacts.model.minfo; import java.io.Serializable; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import org.apache.log4j.Logger; import org.hibernate.SQLQuery; import org.hibernate.Session; import org.hibernate.type.StandardBasicTypes; import org.w3c.dom.Document; import org.w3c.dom.Element; import de.intevation.flys.utils.KMIndex; public class BedloadOverview implements Serializable { private static Logger log = Logger.getLogger(BedloadOverview.class); /** * Serial version UId. */ private static final long serialVersionUID = -7607668985959407096L; public interface Filter { boolean accept(KMIndex<List<Date>> entry); } // interface Filter public static final Filter ACCEPT = new Filter() { public boolean accept(KMIndex<List<Date>> entry) { return true; } }; public static class KmFilter implements Filter { protected double km; public KmFilter (double km) { this.km = km; } public boolean accept(KMIndex<List<Date>> list) { for (KMIndex.Entry<List<Date>> e: list){ if (e.getKm() == km) { return true; } } return false; } }; public static class DateFilter implements Filter { protected Date date; public DateFilter (Date date) { this.date = date; } public boolean accept(KMIndex<List<Date>> list) { for (KMIndex.Entry<List<Date>> e: list){ if (e.getValue().equals(this.date)) { return true; } } return false; } }; public static final double EPSILON = 1e-4; public static final String DATE_FORMAT = "dd.MM.yyyy"; public static final String SQL_SQ = "SELECT" + " m.km AS km," + " m.datum AS datum " + "FROM messung m " + " JOIN station s" + " ON m.stationid = s.stationid " + " JOIN gewaesser g " + " ON s.gewaesserid = g.gewaesserid " + "WHERE" + " g.name = :name AND " + " m.km IS NOT NULL " + "ORDER by" + " m.km, m.datum"; protected String riverName; protected KMIndex<List<Date>> entries; public BedloadOverview() { entries = new KMIndex<List<Date>>(); } public BedloadOverview(String riverName) { this(); this.riverName = riverName; } private static final boolean epsilonEquals(double a, double b) { return Math.abs(a - b) < EPSILON; } protected void loadData(Session session) { SQLQuery query = session.createSQLQuery(SQL_SQ) .addScalar("km", StandardBasicTypes.DOUBLE) .addScalar("datum", StandardBasicTypes.DATE); query.setString("name", riverName); List<Object []> list = query.list(); if (list.isEmpty()) { log.warn("No river '" + riverName + "' found."); } Double prevKm = -Double.MAX_VALUE; List<Date> dates = new ArrayList<Date>(); for (Object [] row: list) { Double km = (Double)row[0]; if (!epsilonEquals(km, prevKm) && !dates.isEmpty()) { entries.add(prevKm, dates); dates = new ArrayList<Date>(); } dates.add((Date)row[1]); prevKm = km; } if (!dates.isEmpty()) { entries.add(prevKm, dates); } } public boolean load(Session session) { loadData(session); return true; } public void generateOverview(Document document) { generateOverview(document, ACCEPT); } public KMIndex<List<Date>> filter(Filter f) { // TODO: Apply filter return entries; } public void generateOverview( Document document, Filter filter ) { KMIndex<List<Date>> filtered = filter(ACCEPT); Element sqElement = document.createElement("bedload"); Element riverElement = document.createElement("river"); riverElement.setAttribute("name", riverName); sqElement.appendChild(riverElement); SimpleDateFormat df = new SimpleDateFormat(DATE_FORMAT); Element kmE = document.createElement("km"); for (KMIndex.Entry<List<Date>> e: filtered) { List<Date> dates = e.getValue(); if (!dates.isEmpty()) { Element dEs = document.createElement("dates"); for (Date d: dates) { Element dE = document.createElement("date"); dE.setAttribute("value", df.format(d)); dEs.appendChild(dE); } kmE.appendChild(dEs); } } sqElement.appendChild(kmE); document.appendChild(sqElement); } }