I am sharing a library of common JForex utilities such as multi-threaded ordering, P&L calculation, rounding numbers, accessing JForex indicators, etc.

Instead of everyone re-inventing the wheel, this can save JForex strategy programmers some time and enhance the quality of each of our trading strategies by collaborating on the resuable, non-proprietary codes.

See my blog post for details on how to download or contribute to "the JFUtil open source project".

What do you think about this?

Update: March 2011, JFUtil 2.0 alpha release. JFUtil 2.0 has been redesigned from the ground up. This version incorporate your feedback from 1.0 and implements design patterns to help you achieve better manageable code.

No comment quantisan,
if anyone was like you ..............
Thank you

just pushed a major update to the repository

Ordering now has multi-threaded trailing step setter, market exposure check, etc. If anything, this class is worth a look.
Some updates and fixes to the other classes as well

Next update will be to consolidate the bid and ask in Ordering to a generic submit order method

This is a great idea and will help the JForex community grow.

Great update, quantisan.

Thank you so much for sharing this.

Good idea quantisan - will take a look.

I updated the Ordering class for more freedom in labeling orders.

Hey quantisan,

I'm new to JForex, trying to learn this but with the limited documentation and no tips while coding it gets kinda confusing at times.

Don't know if I'm blind or stupid but where is your blog?

UPDATE: Found it!

Thanks

May we add a link to your project to the Wiki? https://www.dukascopy.com/wiki/index.php?title=Main_Page

of course!

Hi quantisan,

I found your utilities and they look really great.

Could you please help me with which files need to be installed where on my Mac? I couldn't find any documentation on this.

Also, how do I get JForex to add these utilities to the program?

Sorry for all the questions, but I am a Java and JForex newbie.

Thanks for all the help.

@trixifx, make a JAR file of the library and then use @Library annotation in your strategy to import them to your strategy jfx

I just added a feature to simplify indicator calls in IStrategy. It opens up the indicator-use design to make it more intuitive for beginners and enable runtime switching of indicators for more advanced users.

Take a look at my explanation if you're interested -- https://www.quantisan.com/conjuring-beans-to-simplify-jforex-iindicators/

I just fixed a fatal bug in the indicatorBean abstract class. Please download JFUtil 2.1.1 for the fix.

Hello,

First of all, thank you very much for library. Where this jar should be placed so that JForex find them during compilation?

Are you sure that your code related to indicator values working? Because I constantly get NPE in the line
ema = Indicating.calculate(Instrument.EURUSD, Period.ONE_MIN,

below is the code:

// get an EMA indicator value by building an indicator bean
MovingAverage maBean = IndicatorBeanFactory.getMovingAverage();
// then sets its parameters with obvious method names
maBean.setAppliedPrice(IIndicators.AppliedPrice.MEDIAN_PRICE)
.setMAType(IIndicators.MaType.EMA).setWidth(14); // all of these
// are
// optional
// parameters
// feed the bean into a generic calculation method to get the result
double ema = 1;
try {
ema = Indicating.calculate(Instrument.EURUSD, Period.ONE_MIN,
maBean);
} catch (JFException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
console.getOut().println("value: " + ema);

Hi Quantisan,
Thanks for this useful library

Can I make use of some snippets of your code under the GPL license ?

Thanks in advance

@androw, GPL sounds good

Hi, just tested. When i write the following code:

    public void onStart(IContext context) throws JFException {
        JFUtils utils = context.getUtils();
        double amount1 = utils.convert(Instrument.EURUSD, Instrument.AUDCAD, 0.1);
    }

I get errors of compiler. How i can include JFUtils library? I followed this tutorial https://www.dukascopy.com/wiki/index.php?title=Main_Page and used this class https://www.dukascopy.com/client/javadoc//com/dukascopy/api/JFUtils.html