view flys-backend/src/main/java/de/intevation/flys/model/MinMaxWQ.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 (2013-04-21)
parents 9f92c42b7a81
children
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package de.intevation.flys.model;

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

/**
 * Represents minmimum and maximum values for W and Q
 */
public class MinMaxWQ implements Serializable {

    private BigDecimal minw;
    private BigDecimal maxw;
    private BigDecimal minq;
    private BigDecimal maxq;

    /**
     * Default constuctor to indecate that no min and max w and q values
     * are available
     */
    public MinMaxWQ() {
    }

    /**
     * Constructor for a new MinMaxWQ value
     *
     * @param minw Mimimim W
     * @param maxw Maximum W
     * @param minq Mimimim Q
     * @param maxq Maximum Q
     */
    public MinMaxWQ(
            BigDecimal minw,
            BigDecimal maxw,
            BigDecimal minq,
            BigDecimal maxq)
    {
        this.minw = minw;
        this.maxw = maxw;
        this.minq = minq;
        this.maxq = maxq;
    }

    public BigDecimal getMinW() {
        return this.minw;
    }

    public BigDecimal getMaxW() {
        return this.maxw;
    }

    public BigDecimal getMinQ() {
        return this.minq;
    }

    public BigDecimal getMaxQ() {
        return this.maxq;
    }
}

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