teichmann@5844: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5844:  * Software engineering by Intevation GmbH
teichmann@5844:  *
teichmann@5992:  * This file is Free Software under the GNU AGPL (>=v3)
teichmann@5844:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5992:  * documentation coming with Dive4Elements River for details.
teichmann@5844:  */
teichmann@5844: 
teichmann@5829: package org.dive4elements.river.model;
ingo@1230: 
teichmann@5870: import com.vividsolutions.jts.geom.MultiLineString;
teichmann@5870: 
ingo@1230: import java.io.Serializable;
teichmann@5870: 
ingo@1231: import java.util.List;
ingo@1230: 
ingo@1230: import javax.persistence.Column;
ingo@1230: import javax.persistence.Entity;
ingo@1230: import javax.persistence.Id;
ingo@1230: import javax.persistence.JoinColumn;
ingo@1230: import javax.persistence.OneToOne;
ingo@1230: import javax.persistence.Table;
ingo@1230: 
teichmann@5870: import org.dive4elements.river.backend.SessionHolder;
ingo@1230: 
teichmann@5870: import org.hibernate.HibernateException;
teichmann@5870: import org.hibernate.Query;
teichmann@5870: import org.hibernate.Session;
ingo@1230: 
teichmann@5870: import org.hibernate.annotations.Type;
ingo@1230: 
tom@8747: import org.apache.log4j.Logger;
tom@8747: 
ingo@2375: /**
aheinecke@5146:  * A river has one axis that is used for calculation.
aheinecke@5146:  * Additional axes of a river can be used to be painted int maps etc.
aheinecke@5146:  * which one is the main river axis can be determined over the axis kind.
ingo@2375:  */
ingo@1230: @Entity
ingo@1230: @Table(name = "river_axes")
ingo@1230: public class RiverAxis
ingo@1230: implements   Serializable
ingo@1230: {
tom@8747:     private static Logger log = Logger.getLogger(RiverAxis.class);
tom@8747: 
ingo@1230:     private Integer    id;
aheinecke@5146:     private AxisKind   kind;
ingo@1230:     private River      river;
aheinecke@5477:     private String     name;
rrenkert@5140:     private MultiLineString geom;
teichmann@4736: 
aheinecke@5146:     public static final int KIND_UNKOWN = 0;
aheinecke@5146:     public static final int KIND_CURRENT = 1;
aheinecke@5146:     public static final int KIND_OTHER = 2;
ingo@1230: 
ingo@1230:     public RiverAxis() {
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     @Id
ingo@1230:     @Column(name = "id")
ingo@1230:     public Integer getId() {
ingo@1230:         return id;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     public void setId(Integer id) {
ingo@1230:         this.id = id;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     @OneToOne
ingo@1230:     @JoinColumn(name = "river_id")
ingo@1230:     public River getRiver() {
ingo@1230:         return river;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     public void setRiver(River river) {
ingo@1230:         this.river = river;
ingo@1230:     }
ingo@1230: 
aheinecke@5477:     @Column(name = "name")
aheinecke@5477:     public String getName() {
aheinecke@5477:         return name;
aheinecke@5477:     }
aheinecke@5477: 
aheinecke@5477: 
aheinecke@5477:     public void setName(String name) {
aheinecke@5477:         this.name = name;
aheinecke@5477:     }
ingo@1230: 
aheinecke@5146:     /**
aheinecke@5146:      * Get kind.
aheinecke@5146:      *
aheinecke@5146:      * @return kind as AxisKind.
aheinecke@5146:      */
aheinecke@5146:     @OneToOne
aheinecke@5146:     @JoinColumn(name = "kind_id")
aheinecke@5146:     public AxisKind getKind() {
ingo@1230:         return kind;
ingo@1230:     }
ingo@1230: 
aheinecke@5146:     /**
aheinecke@5146:      * Set kind.
aheinecke@5146:      *
aheinecke@5146:      * @param kind the value to set.
aheinecke@5146:      */
aheinecke@5146:     public void setKind(AxisKind kind) {
ingo@1230:         this.kind = kind;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
ingo@1230:     @Column(name = "geom")
ingo@1230:     @Type(type = "org.hibernatespatial.GeometryUserType")
rrenkert@5140:     public MultiLineString getGeom() {
ingo@1230:         return geom;
ingo@1230:     }
ingo@1230: 
ingo@1230: 
rrenkert@5140:     public void setGeom(MultiLineString geom) {
ingo@1230:         this.geom = geom;
ingo@1230:     }
ingo@1231: 
ingo@1231: 
aheinecke@5477:     public static List<RiverAxis> getRiverAxis(String river, String name, int kind)
aheinecke@5477:     throws HibernateException {
aheinecke@5477:         Session session = SessionHolder.HOLDER.get();
aheinecke@5477:         Query query = session.createQuery(
aheinecke@5477:             "from RiverAxis as ax where river.name =:river" +
aheinecke@5477:             " and kind.id =:kind" +
aheinecke@5477:             " and ax.name=:name");
aheinecke@5477:         query.setParameter("river", river);
aheinecke@5477:         query.setParameter("kind", kind);
aheinecke@5477:         query.setParameter("name", name);
aheinecke@5477: 
aheinecke@5477:         List<RiverAxis> list = query.list();
aheinecke@5477:         return list.isEmpty() ? null : list;
aheinecke@5477:     }
aheinecke@5477: 
tom@8747:     public static RiverAxis getRiverAxis(String river)
rrenkert@5181:     throws HibernateException {
ingo@1231:         Session session = SessionHolder.HOLDER.get();
ingo@1231:         Query query = session.createQuery(
aheinecke@5146:             "from RiverAxis where river.name =:river AND kind.id =:kind");
ingo@1231:         query.setParameter("river", river);
tom@8747:         query.setParameter("kind", KIND_CURRENT);
ingo@1231: 
rrenkert@5181:         List<RiverAxis> list = query.list();
tom@8747: 
tom@8747:         /* We expect that every river has only one RiverAxis of kind 1
tom@8747:            thow this is not currently enforced in database schema. */
tom@8747:         if (list.size() > 1) {
tom@8747:             log.error("River " + river + " has more than one current axis.");
tom@8747:         }
tom@8747: 
tom@8747:         return list.isEmpty() ? null : list.get(0);
ingo@1231:     }
ingo@1230: }
ingo@1230: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :