sascha@1194: package de.intevation.flys.model;
sascha@1194: 
sascha@1194: import java.io.Serializable;
sascha@1194: 
sascha@1194: import java.util.List;
sascha@2380: import java.util.ArrayList;
sascha@2380: 
sascha@2380: import java.awt.geom.Point2D;
sascha@1194: 
sascha@1194: import javax.persistence.Entity;
sascha@1194: import javax.persistence.Id;
sascha@1194: import javax.persistence.Table;
sascha@1194: import javax.persistence.GeneratedValue;
sascha@1194: import javax.persistence.Column;
sascha@1194: import javax.persistence.SequenceGenerator;
sascha@1194: import javax.persistence.GenerationType;
sascha@1194: import javax.persistence.OneToOne;
sascha@1194: import javax.persistence.OneToMany;
sascha@1210: import javax.persistence.OrderBy;
sascha@1194: import javax.persistence.JoinColumn;
sascha@1194: 
sascha@2379: import java.math.MathContext;
sascha@2379: import java.math.BigDecimal;
sascha@2379: 
sascha@2379: import org.hibernate.Session;
sascha@2380: import org.hibernate.SQLQuery;
sascha@2379: import org.hibernate.Query;
sascha@2379: 
sascha@2380: import org.hibernate.type.StandardBasicTypes;
sascha@2380: 
sascha@2379: import de.intevation.flys.backend.SessionHolder;
sascha@2379: 
sascha@1194: @Entity
sascha@1194: @Table(name = "cross_sections")
sascha@1194: public class CrossSection
sascha@1194: implements   Serializable
sascha@1194: {
sascha@2379:     public static final MathContext PRECISION = new MathContext(6);
sascha@2379: 
sascha@2380:     public static final String SQL_FAST_CROSS_SECTION_LINES =
sascha@2380:         "SELECT km, x, y, csl.id AS csl_id " +
sascha@2380:         "FROM cross_section_lines csl JOIN cross_section_points csp " +
sascha@2380:         "ON csp.cross_section_line_id = csl.id " +
sascha@2380:         "WHERE csl.cross_section_id = :cs_id AND " +
sascha@3334:         "km between :from_km AND :to_km " +
sascha@2380:         "ORDER BY csl.id, csp.col_pos";
sascha@2380: 
sascha@1203:     private Integer                id;
sascha@1203:     private River                  river;
sascha@1203:     private TimeInterval           timeInterval;
sascha@1203:     private String                 description;
sascha@1203:     private List<CrossSectionLine> lines;
sascha@1194: 
sascha@1194:     public CrossSection() {
sascha@1194:     }
sascha@1194: 
sascha@1204:     public CrossSection(
sascha@1204:         River        river,
sascha@1204:         TimeInterval timeInterval,
sascha@1204:         String       description
sascha@1204:     ) {
sascha@1204:         this.river        = river;
sascha@1204:         this.timeInterval = timeInterval;
sascha@1204:         this.description  = description;
sascha@1204:     }
sascha@1204: 
sascha@1194:     @Id
sascha@1194:     @SequenceGenerator(
sascha@1194:         name           = "SEQUENCE_CROSS_SECTIONS_ID_SEQ",
sascha@1194:         sequenceName   = "CROSS_SECTIONS_ID_SEQ",
sascha@1194:         allocationSize = 1)
sascha@1194:     @GeneratedValue(
sascha@1194:         strategy  = GenerationType.SEQUENCE,
sascha@1194:         generator = "SEQUENCE_CROSS_SECTIONS_ID_SEQ")
sascha@1194:     @Column(name = "id")
sascha@1194:     public Integer getId() {
sascha@1194:         return id;
sascha@1194:     }
sascha@1194: 
sascha@1194:     public void setId(Integer id) {
sascha@1194:         this.id = id;
sascha@1194:     }
sascha@1194: 
sascha@1194:     @OneToOne
sascha@1194:     @JoinColumn(name = "river_id")
sascha@1194:     public River getRiver() {
sascha@1194:         return river;
sascha@1194:     }
sascha@1194: 
sascha@1194:     public void setRiver(River river) {
sascha@1194:         this.river = river;
sascha@1194:     }
sascha@1194: 
sascha@1194:     @OneToOne
sascha@1194:     @JoinColumn(name = "time_interval_id")
sascha@1194:     public TimeInterval getTimeInterval() {
sascha@1194:         return timeInterval;
sascha@1194:     }
sascha@1194: 
sascha@1194:     public void setTimeInterval(TimeInterval timeInterval) {
sascha@1194:         this.timeInterval = timeInterval;
sascha@1194:     }
sascha@1194: 
sascha@1202:     @Column(name = "description")
sascha@1202:     public String getDescription() {
sascha@1202:         return description;
sascha@1202:     }
sascha@1202: 
sascha@1202:     public void setDescription(String description) {
sascha@1202:         this.description = description;
sascha@1202:     }
sascha@1202: 
sascha@1194:     @OneToMany
sascha@1210:     @OrderBy("km")
sascha@1194:     @JoinColumn(name="cross_section_id")
sascha@1203:     public List<CrossSectionLine> getLines() {
sascha@1203:         return lines;
sascha@1194:     }
sascha@1194: 
sascha@1203:     public void setLines(List<CrossSectionLine> lines) {
sascha@1203:         this.lines = lines;
sascha@1194:     }
sascha@2379: 
sascha@2379:     public List<CrossSectionLine> getLines(double startKm, double endKm) {
sascha@2379:         Session session = SessionHolder.HOLDER.get();
sascha@2379:         Query query = session.createQuery(
sascha@2379:             "from CrossSectionLine where crossSection=:crossSection " +
sascha@2379:             "and km between :startKm and :endKm order by km");
sascha@2379:         query.setParameter("crossSection", this);
sascha@2379:         query.setParameter("startKm", new BigDecimal(startKm, PRECISION));
sascha@2379:         query.setParameter("endKm", new BigDecimal(endKm, PRECISION));
sascha@2379: 
sascha@2379:         return query.list();
sascha@2379:     }
sascha@2380: 
sascha@2380:     public List<FastCrossSectionLine> getFastLines(
sascha@2380:         double startKm,
sascha@2380:         double endKm
sascha@2380:     ) {
sascha@2380:         Session session = SessionHolder.HOLDER.get();
sascha@2380: 
sascha@2380:         SQLQuery sqlQuery = session.createSQLQuery(SQL_FAST_CROSS_SECTION_LINES)
sascha@2380:             .addScalar("km",     StandardBasicTypes.DOUBLE)
sascha@2380:             .addScalar("x",      StandardBasicTypes.DOUBLE)
sascha@2380:             .addScalar("y",      StandardBasicTypes.DOUBLE)
sascha@2380:             .addScalar("csl_id", StandardBasicTypes.INTEGER);
sascha@2380: 
sascha@2380:         sqlQuery
sascha@2380:             .setInteger("cs_id",  getId())
sascha@2380:             .setDouble("from_km", startKm)
sascha@2380:             .setDouble("to_km",   endKm);
sascha@2380: 
sascha@2380:         List<Object []> results = sqlQuery.list();
sascha@2380: 
sascha@2380:         ArrayList<Point2D> points = new ArrayList<Point2D>(500);
sascha@2380:         ArrayList<FastCrossSectionLine> lines =
sascha@2380:             new ArrayList<FastCrossSectionLine>();
sascha@2380: 
sascha@2380:         Integer lastId = null;
sascha@2380:         Double  lastKm = null;
sascha@2380: 
sascha@2380:         for (Object [] result: results) {
sascha@2380:             Double  km = (Double)result[0];
sascha@2380:             Double  x  = (Double)result[1];
sascha@2380:             Double  y  = (Double)result[2];
sascha@2380:             Integer id = (Integer)result[3];
sascha@2380: 
sascha@2380:             if (lastId != null && !lastId.equals(id)) {
sascha@2380:                 points.trimToSize();
sascha@2380:                 FastCrossSectionLine line =
sascha@2380:                     new FastCrossSectionLine(lastKm, points);
sascha@2380:                 lines.add(line);
sascha@2380:                 points = new ArrayList<Point2D>(500);
sascha@2380:             }
sascha@2380: 
sascha@2380:             Point2D p = new Point2D.Double(x, y);
sascha@2380: 
sascha@2380:             if (CrossSectionLine.isValid(p)) {
sascha@2380:                 points.add(p);
sascha@2380:             }
sascha@2380: 
sascha@2380:             lastKm = km;
sascha@2380:             lastId = id;
sascha@2380:         }
sascha@2380: 
sascha@2380:         if (lastId != null) {
sascha@2380:             points.trimToSize();
sascha@2380:             FastCrossSectionLine line =
sascha@2380:                 new FastCrossSectionLine(lastKm, points);
sascha@2380:             lines.add(line);
sascha@2380:         }
sascha@2380: 
sascha@2380:         lines.trimToSize();
sascha@2380: 
sascha@2380:         return lines;
sascha@2380:     }
sascha@1194: }
sascha@1194: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :