The tester doe snot seem to work with XAGUSD pair. It just sits there and refuses to start.

Specific question: what is the IEngine.submitOrder() amount parameter in the case of XAGUSD or XAUUSD ? For currencies, it is expressed in millions of the base currency. For the metal pairs, what is it ounces ? millions of ounces ?

Make sure that you have selected the instrument XAGUSD in Historical Data panel. If you still encounter some problems, please provide some more details of your Historical Tester settings and some fragment of the strategy that you try to run.
It is always in millions - in this case - millions of ounces. Mind that minimal amount for XAGUSD is 50 units.

The strategy works just fine with every OTHER currency pair. So yes I can confirm I selected XAGUSD when running the tester as that is the only one that does not actually start the tester. Point is, I don't even get a message that I output in the onStart() method, nothing.

I even just tried with a totally new, empty strategy. In JForex create a new strategy, then add a this.console.getOut().println("test message") to onStart(). Nothing happens, the tester does not run when I click "start". Just a blank chart comes up. And there is no "test message" in the output window. Yes, I enabled "Messages" in the tester. If I instead select another currency pair, it happily displays the chart and the message. I tried this with data from the last week.


thanks. good to know !

Could you please check if this strategy gives no results or outputs too? If so, could you please provide a screenshot of your Historical Tester tab?

package jforex.strategies.oneorder;

import java.text.SimpleDateFormat;
import java.util.TimeZone;

import com.dukascopy.api.*;

public class OneOrderXAG implements IStrategy {
    
    private IEngine engine;
    private IConsole console;
    private IOrder order;
    private SimpleDateFormat sdf;
    
    private Instrument instrument = Instrument.XAGUSD;
    
    public void onStart(IContext context) throws JFException {
        engine = context.getEngine();
        console = context.getConsole();
        sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss") {{setTimeZone(TimeZone.getTimeZone("GMT"));}};
        
        context.getConsole().getOut().println("Start");
        order = engine.submitOrder("orderXAGUSD", instrument, IEngine.OrderCommand.BUY, 0.001);
    }

    public void onTick(Instrument instrument, ITick tick) throws JFException {
    }
    
    public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
        if(!period.equals(Period.ONE_HOUR) || !(instrument.equals(this.instrument))) return;
        console.getOut().println(sdf.format(bidBar.getTime()) + " " +order.getLabel() + " - " + order.getState() + " ask volume: " + askBar.getVolume() + " instrument: " + instrument);
    }
    
    public void onMessage(IMessage message) throws JFException {
        console.getOut().println(message.getContent());
    }
    
    public void onAccount(IAccount account) throws JFException {}
    
    public void onStop() throws JFException { 
        for(IOrder o: engine.getOrders()) o.close();
        }

}

absolutely the same behavior. screenshot attached.

Please check the issue on a new build.

This is still not working correctly! Especially the year 2011 seems to have problems. The strategy is stalled in "Creating data loading threads".

Steps to reproduce:
- Remove ~/JForex directory
- Start JForex demo
- Take suggested strategy from this thread
- Start backtesting from 1.1.2011 to 1.1.2012, XAGUSD, Ticks, All Ticks
- Wait

Further observations:

$ cd ~/JForex/.cache/XAGUSD
$ du -s *
28   1999
28   2000
28   2001
28   2002
380   2003
556   2004
548   2005
548   2006
548   2007
556   2008
548   2009
760   2010
234276   2011
556   2012
24564   2013
12116   2014
104   intraperiod

Why does it download data for 2013, when the requested range is 1.1.2011 to 1.1.2012?

$ cd ~/JForex/.cache/XAGUSD/2011
$ du -s *
940   00
2488   01
13876   02
21512   03
30656   04
24068   05
21536   06
27168   07
28000   08
22756   09
22096   10
19152   11
12   ASK_candles_day_1.bi5
12   BID_candles_day_1.bi5

Why is there so less data for jan and feb?

Please investigate this! Thanks

What messages do you get in java console? See:
viewtopic.php?f=81&t=39073

21.05.2014 19:05:42.552 SEVERE actions.c ] Could not load tick before test interval start 2011-01-01 00:00:00:000
java.lang.NullPointerException: Could not load tick before test interval start 2011-01-01 00:00:00:000
at com.dukascopy.dds2.greed.agent.strategy.tester.b.g.<init>(Unknown Source)
at com.dukascopy.dds2.greed.agent.strategy.tester.b.p.f(Unknown Source)
at com.dukascopy.dds2.greed.agent.strategy.tester.b.p.e(Unknown Source)
at com.dukascopy.dds2.greed.agent.strategy.tester.b.p.a(Unknown Source)
at com.dukascopy.dds2.greed.agent.strategy.tester.b.p.HH(Unknown Source)
at com.dukascopy.dds2.greed.agent.strategy.tester.w.run(Unknown Source)
at com.dukascopy.dds2.greed.agent.strategy.tester.b.a(Unknown Source)
at com.dukascopy.dds2.greed.actions.servicesources.StrategyTesterAction.CN(Unknown Source)
at com.dukascopy.dds2.greed.actions.servicesources.StrategyTesterAction.Ci(Unknown Source)
at com.dukascopy.dds2.greed.actions.c.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)

We are going to fix this as soon as possible.