io.fair_acc.sample.financial.dos.PriceVolumeContainer Maven / Gradle / Ivy

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Small sample applications to showcase the features of the chart-fx library.

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package io.fair_acc.sample.financial.dos;

import java.util.Collection;
import java.util.TreeMap;

public class PriceVolumeContainer {
    private final TreeMap priceVolumeMap = new TreeMap<>();
    private double pocPrice;
    private double pocVolume = -Double.MAX_VALUE;

    /**
     * Add volume up and down to specific price
     * @param price value
     * @param volumeDown tick down volume
     * @param volumeUp tick up volume
     */
    public void addPriceVolume(double price, double volumeDown, double volumeUp) {
        Double[] priceVolume = priceVolumeMap.get(price);
        if (priceVolume == null) {
            priceVolume = new Double[] { price, volumeDown, volumeUp };
            priceVolumeMap.put(price, priceVolume);

        } else {
            priceVolume[1] += volumeDown;
            priceVolume[2] += volumeUp;
        }
        double totalVolume = priceVolume[1] + priceVolume[2];
        if (totalVolume > pocVolume) {
            pocVolume = totalVolume;
            pocPrice = price;
        }
    }

    /**
     * @param price return DO price volume by required price level
     * @return provides volume information for specific price
     */
    public Double[] getPriceVolumeBy(double price) {
        return priceVolumeMap.get(price);
    }

    /**
     * @return provides price volume tree map
     */
    public TreeMap getCompletedPriceVolumeTreeMap() {
        return priceVolumeMap;
    }

    /**
     * @return provides price volume collection for actual bar
     */
    public Collection getCompletedPriceVolume() {
        return priceVolumeMap.values();
    }

    /**
     * Reset PriceVolume instance
     */
    public void clear() {
        priceVolumeMap.clear();
        pocVolume = -Double.MAX_VALUE;
        pocPrice = 0.0d;
    }

    /**
     * @return provides calculated POC price
     */
    public double getPocPrice() {
        return pocPrice;
    }

    /**
     * @return provides total volume of POS price
     */
    public double getPocVolume() {
        return pocVolume;
    }
}