view flys-backend/src/main/java/de/intevation/flys/model/SedimentDensityValue.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 db6c7268b08e
children
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package de.intevation.flys.model;

import java.io.Serializable;
import java.math.BigDecimal;

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


@Entity
@Table(name = "sediment_density_values")
public class SedimentDensityValue implements Serializable {

    private Integer id;

    private SedimentDensity sedimentDensity;

    private BigDecimal station;
    private BigDecimal shoreOffset;
    private BigDecimal density;
    private BigDecimal year;

    private String description;


    public SedimentDensityValue() {
    }


    public SedimentDensityValue(
        SedimentDensity sedimentDensity,
        BigDecimal      station,
	BigDecimal      shoreOffset,
        BigDecimal      density,
        BigDecimal      year,
        String          desc
    ) {
        this.sedimentDensity = sedimentDensity;
        this.station         = station;
	this.shoreOffset     = shoreOffset;
        this.density         = density;
        this.year            = year;
        this.description     = desc;
    }

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

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

    @OneToOne
    @JoinColumn(name = "sediment_density_id")
    public SedimentDensity getSedimentDensity() {
        return sedimentDensity;
    }

    public void setSedimentDensity(SedimentDensity sedimentDensity) {
        this.sedimentDensity = sedimentDensity;
    }

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

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

    @Column(name = "shore_offset")
    public BigDecimal getShoreOffset() {
        return shoreOffset;
    }

    public void setShoreOffset(BigDecimal shoreOffset) {
        this.shoreOffset = shoreOffset;
    }

    @Column(name = "density")
    public BigDecimal getDensity() {
        return density;
    }

    public void setDensity(BigDecimal density) {
        this.density = density;
    }

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

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

    @Column(name = "year")
    public BigDecimal getYear() {
        return year;
    }

    public void setYear(BigDecimal year) {
        this.year = year;
    }
}
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