view flys-backend/src/main/java/de/intevation/flys/model/MeasurementStation.java @ 5779:ebec12def170

Datacage: Add a pool of builders to make it multi threadable. XML DOM is not thread safe. Therefore the old implementation only allowed one thread to use the builder at a time. As the complexity of the configuration has increased over time this has become a bottleneck of the whole application because it took quiet some time to build a result. Furthermore the builder code path is visited very frequent. So many concurrent requests were piled up resulting in long waits for the users. To mitigate this problem a round robin pool of builders is used now. Each of the pooled builders has an independent copy of the XML template and can be run in parallel. The number of builders is determined by the system property 'flys.datacage.pool.size'. It defaults to 4.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 21 Apr 2013 12:48:09 +0200
parents de3c77d35fef
children
line wrap: on
line source
package de.intevation.flys.model;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;


@Entity
@Table(name = "measurement_station")
public class MeasurementStation {

    private Integer id;

    private String name;
    private String measurementType;
    private String riverside;
    private String operator;
    private String description;

    private Double station;
    private Range range;

    private River river;

    private Gauge gauge;
    private String gaugeName;

    private TimeInterval observationTimerange;

    public MeasurementStation() {
    }

    public MeasurementStation(River river, String name, String measurementType,
        String riverside, Double station, Range range, Gauge gauge,
        String gaugeName, TimeInterval observationTimerange, String operator,
        String description
    ) {
        this.river = river;
        this.name = name;
        this.measurementType = measurementType;
        this.riverside = riverside;
        this.station = station;
        this.range = range;
        this.gauge = gauge;
        this.gaugeName = gaugeName;
        this.observationTimerange = observationTimerange;
        this.operator = operator;
        this.description = description;
    }

    @Id
    @SequenceGenerator(name = "SEQ_MEASUREMENT_STATION_ID_SEQ", sequenceName = "MEASUREMENT_STATION_ID_SEQ", allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_MEASUREMENT_STATION_ID_SEQ")
    @Column(name = "id")
    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    @Column(name = "name")
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Column(name = "measurement_type")
    public String getMeasurementType() {
        return measurementType;
    }

    public void setMeasurementType(String measurementType) {
        this.measurementType = measurementType;
    }

    @Column(name = "riverside")
    public String getRiverside() {
        return riverside;
    }

    public void setRiverside(String riverside) {
        this.riverside = riverside;
    }

    @OneToOne
    @JoinColumn(name = "river_id")
    public River getRiver() {
        return river;
    }

    public void setRiver(River river) {
        this.river = river;
    }

    @OneToOne
    @JoinColumn(name = "reference_gauge_id")
    public Gauge getGauge() {
        return gauge;
    }

    public void setGauge(Gauge gauge) {
        this.gauge = gauge;
    }

    @Column(name = "reference_gauge_name")
    public String getGaugeName() {
        return gaugeName;
    }

    public void setGaugeName(String gaugeName) {
        this.gaugeName = gaugeName;
    }

    @Column(name = "station")
    public Double getStation() {
        return station;
    }

    public void setStation(Double station) {
        this.station = station;
    }

    @OneToOne
    @JoinColumn(name = "range_id")
    public Range getRange() {
        return range;
    }

    public void setRange(Range range) {
        this.range = range;
    }

    @OneToOne
    @JoinColumn(name = "observation_timerange_id")
    public TimeInterval getObservationTimerange() {
        return observationTimerange;
    }

    public void setObservationTimerange(TimeInterval observationTimerange) {
        this.observationTimerange = observationTimerange;
    }

    @Column(name = "operator")
    public String getOperator() {
        return operator;
    }

    public void setOperator(String operator) {
        this.operator = operator;
    }

    @Column(name = "description")
    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }
}

http://dive4elements.wald.intevation.org