Hi Support team,

can you please provide a strategy for usage with TickBar charts which displays (at the right side of current period) the number of ticks already processed in current period ?


Best regards
AbsoluteReturner

Here is an example strategy that shows the number of ticks in the current bar.

import java.awt.Color;
import java.util.*;

import com.dukascopy.api.*;
import com.dukascopy.api.drawings.IChartObjectFactory;
import com.dukascopy.api.drawings.ILabelChartObject;

public class TickCountStrategy implements IStrategy {
    private IConsole console;
    private IHistory history;
    private IChart chart;

    private ILabelChartObject label;
    int tickCount;
    double price;
    
    @Configurable("Period")
    public Period strategyPeriod = Period.ONE_HOUR;

    @Configurable("Instrument")
    public Instrument strategyInstrument = Instrument.EURUSD;

    double previousValue = 0;

    public void onStart(IContext context) throws JFException {
        this.console = context.getConsole();
        this.history = context.getHistory();
        
        this.chart = context.getChart(strategyInstrument);
    }

    public void onAccount(IAccount account) throws JFException {
    }

    public void onMessage(IMessage message) throws JFException {
    }

    public void onStop() throws JFException {
        print("Stopped!");
    }

    public void onTick(Instrument instrument, ITick tick) throws JFException {
        if (instrument.equals(strategyInstrument)) {
            if(label != null){
                tickCount++;
                label.setText(tickCount+"");
                price = Math.max(tick.getBid(), price);
                label.setPrice(0, Math.max(tick.getBid(), price));
            }
        }
    }

    public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
        
        if (instrument.equals(strategyInstrument) && period.equals(strategyPeriod)) {
            IBar bar = history.getBar(strategyInstrument, strategyPeriod, OfferSide.BID, 0);
            drawLabel(bar.getTime(), bar.getOpen());
        }
    }

    public void print(Object o) {
        this.console.getOut().println(o.toString());
    }
    
    private void drawLabel(long time, double price) {        
        IChartObjectFactory factory = chart.getChartObjectFactory();
        String key = ("label" + UUID.randomUUID().toString().replace('-', '0'));
        this.label = factory.createLabel(key, time, price);
        label.setText("0");
        label.setColor(Color.BLACK);
        chart.addToMainChart(label);
        
        this.price = price;
        tickCount = 0;
    }
    
    
    
}

Thank you for this example.

But my question was how to do this for a chart based on TickBars, e.g. 50 ticks per period.
It seems more complicated because I don't know how to identify the period (which doesn't has a constant time duration) in the onBar() method.

Regards
AR

Here is a strategy that puts and updates labels on tick bar chart. Labels contain the number of ticks in current tick bar.

package jforex.strategies;

import java.awt.Color;
import java.util.*;

import com.dukascopy.api.*;
import com.dukascopy.api.bar.ITickBar;
import com.dukascopy.api.drawings.IChartObjectFactory;
import com.dukascopy.api.drawings.ILabelChartObject;
import com.dukascopy.api.listener.ITickBarFeedListener;


public class TickCountStrategy implements IStrategy {
    private IConsole console;
    private IHistory history;
    private IChart chart;

    private ILabelChartObject label;
    int tickCount;
    double price;

    @Configurable("Instrument")
    public Instrument strategyInstrument = Instrument.EURUSD;
    
    @Configurable("Tick bar size")
    public int tickBarSize = 10;

    double previousValue = 0;

    public void onStart(IContext context) throws JFException {
        this.console = context.getConsole();
        this.history = context.getHistory();
        
        context.subscribeToTickBarFeed(Instrument.EURUSD, OfferSide.BID,  TickBarSize.valueOf(tickBarSize), new ITickBarFeedListener() {
            @Override
            public void onBar(Instrument instrument, OfferSide offerSide, TickBarSize size, ITickBar bar) {
                console.getOut().println("On Tick Bar " + " " + instrument + " " + offerSide + " " + tickBarSize + " " + bar);
                label = null; 
            }
        });
        
        this.chart = context.getChart(strategyInstrument);
    }

    public void onAccount(IAccount account) throws JFException {
    }

    public void onMessage(IMessage message) throws JFException {
    }

    public void onStop() throws JFException {
        print("Stopped!");
    }

    public void onTick(Instrument instrument, ITick tick) throws JFException {
        if (instrument.equals(strategyInstrument)) {
            if(label == null){
                price = tick.getBid();
                tickCount = 1;
                label = drawLabel(tick.getTime(), tick.getBid());
            } else {
                price = Math.max(tick.getBid(), price);
                label.setPrice(0, Math.max(tick.getBid(), price));
                tickCount++;
                label.setText(tickCount+"");
                label.setTime(0, tick.getTime());
            }          
        }
    }

    public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
    }

    public void print(Object o) {
        this.console.getOut().println(o.toString());
    }
    
    private ILabelChartObject drawLabel(long time, double price) {        
        IChartObjectFactory factory = chart.getChartObjectFactory();
        String key = ("label" + UUID.randomUUID().toString().replace('-', '0'));
        ILabelChartObject l = factory.createLabel(key, time, price);
        l.setText("1");
        l.setColor(Color.BLACK);
        chart.addToMainChart(l);
        return l;
    }
    
    
    
}

In order to show tick bars on chart a new custom period should be defined:
Tools > Preferences > Period > Ticks > choose tick count in the bar > press ">>" button > press "OK".
It is now possible to choose the new period in the chart.

I compiled and started this strategy on a 60 ticks chart but no label with tickCount value was shown on the main chart.

Therefore I inserted the following statement in the onTick() method:
console.getOut().println(tickCount+"");
and the tickCount value was printed correctly (every new tickCount value in a new line).

So I can say, the main problem (identify TickBars periods and count the ticks of every period) is solved, but display of tick value on the main chart does not yet work.

Best Regards
AR

Could you, please, take a screenshot with the console output of the strategy and the chart.

In the meanwhile I found out that the labels are displayed in the 1 hour chart instead - one label for every new TickBars period.
I have open the follwing EUR/USD charts: H1, M5, M1, 100T.

Regards
AR

Here is a strategy that will add the numbers to an open tick bar chart.

Generally it works now, but I inserted the following two code lines at line 38 (in the onBar() method of ITickBarFeedListener, before the statement: label = null;) to force deletion of old labels:

...
if (chart != null && label != null)
    chart.remove(label); 
...

Regards
AR