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fxdiler

How to get current jforex platform time?
When I use Calendar or Date class the time can be different between time you can see in right top corner. Difference can reach 2-5 seconds. I think it is because Calendar or Date class use system time of my computer. But I need to get current jforex platform time in milliseconds.

hebasto

public void onTick(Instrument instrument, ITick tick) throws JFException {
    long platformTime = tick.getTime();
}

fxdiler

hebasto wrote:

public void onTick(Instrument instrument, ITick tick) throws JFException {
    long platformTime = tick.getTime();
}

It is not good idea because delay between ticks can be some seconds. Using this code I will get not actual time.

hebasto

fxdiler wrote:

It is not good idea because delay between ticks can be some seconds. Using this code I will get not actual time.

That code doesn't use instrument filter so time will be as precise as possible.

fxdiler

hebasto wrote:

That code doesn't use instrument filter so time will be as precise as possible.

If strategy subscribed only to one instrument it does not solve the problem. And I don't need to subscribe strategy to other instruments which I don't use.

I need correct solve how to get current jforex platform time in milliseconds.

hashcat

Assume that you have 'long baseServerTime' and 'long recordLocalTime' in your class:

 
public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
     if (period.equals(Period.ONE_HOUR)){ 
         baseServerTime = bidBar.getTime() + period.getInterval(); // I'm not sure whether 'bidBar.getTime()' is open time or not
         recordLocalTime = System.currentTimeMillis();
     }
 }

Then the server time can be calculated by

System.currentTimeMillis() - recordLocalTime + baseServerTime;

fxdiler

There is another questions: how to get current jforex platform time without subscribe to any instrument?
I found a next way but it works only if strategy run from JForex SDK (from NetBeans, for example)

com.dukascopy.dds2.greed.gui.component.ApplicationClock.getInstance().getTime()

or

com.dukascopy.dds2.greed.gui.component.ApplicationClock.getInstance().getServerTime()

return current platform time in milliseconds.

Anybody know how to write code that this work from strategy in JForex platform?

API Support

The functionality is not part of JForex-API, thus:

it is subject to change with following JForex-SDK releases, which would make your code fail to compile,
it is no accessible from strategies.

Therefore please make use of the previously suggested solutions.

hyperscalper

For time synchronization on your local platform,
I recommend Meinberg NNTP service. You will never
again have to worry about time synchronization
on your local system.

Otherwise, your closest to that time would be
to get the time of the most recent onTick
event.

Then just format it as UTC or GMT time using
standard Java.

HyperScalper

hyperscalper

hebasto wrote:

fxdiler wrote:

It is not good idea because delay between ticks can be some seconds. Using this code I will get not actual time.

That code doesn't use instrument filter so time will be as precise as possible.

Perhaps for every time that you "grab" the onTick time, as suggested,
you *also* grab your local system time. Then you can calculate a Delta
Time from your current system time as a precise indication of the
"true" time ?

You could even average that Delta figure to get rid of "jitter" effects.
Network latencies are also a consideration you could think about.

System.currentTimeMillis() may be accurate to only 10 msecs, but
I think now you can get accuracy down to the msec on the newer Java
runtimes.

HyperScalper