mschaefer@9117: /* Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
mschaefer@9117:  * Software engineering by
mschaefer@9117:  *  Björnsen Beratende Ingenieure GmbH
mschaefer@9117:  *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
mschaefer@9117:  *
mschaefer@9117:  * This file is Free Software under the GNU AGPL (>=v3)
mschaefer@9117:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
mschaefer@9117:  * documentation coming with Dive4Elements River for details.
mschaefer@9117:  */
mschaefer@9117: 
mschaefer@9117: package org.dive4elements.river.model.sinfo;
mschaefer@9117: 
mschaefer@9117: import java.io.Serializable;
mschaefer@9117: import java.util.ArrayList;
mschaefer@9117: import java.util.Date;
mschaefer@9117: import java.util.List;
mschaefer@9117: 
mschaefer@9117: import org.dive4elements.river.backend.SessionHolder;
mschaefer@9117: import org.hibernate.SQLQuery;
mschaefer@9117: import org.hibernate.Session;
mschaefer@9117: import org.hibernate.type.StandardBasicTypes;
mschaefer@9117: 
mschaefer@9117: 
mschaefer@9117: /**
mschaefer@9117:  * Aggregation of collision_values
mschaefer@9117:  *
mschaefer@9117:  * @author Matthias Schäfer
mschaefer@9117:  *
mschaefer@9117:  */
mschaefer@9117: public class CollisionAggregateValue implements Serializable {
mschaefer@9117: 
mschaefer@9117:     /***** FIELDS *****/
mschaefer@9117: 
mschaefer@9117:     private static final long serialVersionUID = 1;
mschaefer@9117: 
mschaefer@9117:     private Collision parent;
mschaefer@9117: 
mschaefer@9117:     private double station;
mschaefer@9117: 
mschaefer@9117:     // private CollisionType collisionType;
mschaefer@9117: 
mschaefer@9117:     private Date minDate;
mschaefer@9117: 
mschaefer@9117:     private Date maxDate;
mschaefer@9117: 
mschaefer@9117:     private int count;
mschaefer@9117: 
mschaefer@9117:     private double gaugeW;
mschaefer@9117: 
mschaefer@9117: 
mschaefer@9117:     /***** CONSTRUCTORS *****/
mschaefer@9117: 
mschaefer@9117:     public CollisionAggregateValue() {
mschaefer@9117:     }
mschaefer@9117: 
mschaefer@9117:     public CollisionAggregateValue(final Collision collision, final double station, final Date minDate, final Date maxDate, final int count,
mschaefer@9117:             final double gaugeW) {
mschaefer@9117:         this.parent = collision;
mschaefer@9117:         this.station = station;
mschaefer@9117:         // this.collisionType = collisionType;
mschaefer@9117:         this.minDate = minDate;
mschaefer@9117:         this.maxDate = maxDate;
mschaefer@9117:         this.count = count;
mschaefer@9117:         this.gaugeW = gaugeW;
mschaefer@9117:     }
mschaefer@9117: 
mschaefer@9117: 
mschaefer@9117:     /***** METHODS *****/
mschaefer@9117: 
mschaefer@9117:     public int getCount() {
mschaefer@9117:         return this.count;
mschaefer@9117:     }
mschaefer@9117: 
mschaefer@9117:     public Collision getCollision() {
mschaefer@9117:         return this.parent;
mschaefer@9117:     }
mschaefer@9117: 
mschaefer@9117:     public double getStation() {
mschaefer@9117:         return this.station;
mschaefer@9117:     }
mschaefer@9117: 
mschaefer@9117:     // public CollisionType getCollisionType() {
mschaefer@9117:     // return this.collisionType;
mschaefer@9117:     // }
mschaefer@9117: 
mschaefer@9117:     public Date getMinDate() {
mschaefer@9117:         return this.minDate;
mschaefer@9117:     }
mschaefer@9117: 
mschaefer@9117:     public Date getMaxDate() {
mschaefer@9117:         return this.maxDate;
mschaefer@9117:     }
mschaefer@9117: 
mschaefer@9117:     public Double getGaugeW() {
mschaefer@9117:         return this.gaugeW;
mschaefer@9117:     }
mschaefer@9117: 
mschaefer@9117:     /**
mschaefer@9117:      * Selects the collision aggregate values of a data series in a km range from the database
mschaefer@9117:      */
mschaefer@9117:     public static List<CollisionAggregateValue> getValuesByKm(final Collision parent, final double kmLo, final double kmHi) {
mschaefer@9117:         final Session session = SessionHolder.HOLDER.get();
mschaefer@9117:         final SQLQuery query = session.createSQLQuery("SELECT FLOOR(station+0.4999) AS station, COUNT(*) AS count,"
mschaefer@9117:                 + " MIN(event_date) AS date_min, MAX(event_date) AS date_max,"
mschaefer@9117:                 + "  AVG(gauge_w) AS gauge_w"
mschaefer@9117:                 + " FROM collision_values v INNER JOIN collision s ON v.collision_id=s.id"
mschaefer@9117:                 + " WHERE (collision_id=:parent)"
mschaefer@9117:                 + " AND (station BETWEEN (:kmLo - 0.0001) AND (:kmHi + 0.0001))"
mschaefer@9117:                 + " GROUP BY FLOOR(station+0.4999);").addScalar("station", StandardBasicTypes.DOUBLE)
mschaefer@9117:                 .addScalar("count", StandardBasicTypes.INTEGER).addScalar("date_min", StandardBasicTypes.DATE)
mschaefer@9117:                 .addScalar("date_max", StandardBasicTypes.DATE).addScalar("gauge_w", StandardBasicTypes.DOUBLE);
mschaefer@9117:         query.setInteger("parent", parent.getId());
mschaefer@9117:         query.setDouble("kmLo", new Double(kmLo));
mschaefer@9117:         query.setDouble("kmHi", new Double(kmHi));
mschaefer@9117:         final List<CollisionAggregateValue> values = new ArrayList();
mschaefer@9117:         final List<Object[]> rows = query.list();
mschaefer@9117:         if (rows != null) {
mschaefer@9117:             for (int i = 0; i <= rows.size() - 1; i++) {
mschaefer@9117:                 values.add(new CollisionAggregateValue(parent, (double) rows.get(i)[0], (Date) rows.get(i)[2], (Date) rows.get(i)[3],
mschaefer@9117:                         (int) rows.get(i)[1], (double) rows.get(i)[4]));
mschaefer@9117:             }
mschaefer@9117:         }
mschaefer@9117:         return values;
mschaefer@9117:     }
mschaefer@9117: }