How to export historical data every 1 minute automatically

[franky]

Hi everyone,

The attached program works well to export historical data upon a prompt
for manual inputs including file path.

Is it possible to add a loop to enable it export data continuously every
1 minute without further outside intervention once started?

Thank you very much in advance for enlightening me.

frank




------------------------------------------
package jforex;

import java.util.*;
import java.io.*;
import java.text.*;

import com.dukascopy.api.*;

/**
* @author Dmitry Shohov
*/
@RequiresFullAccess
public class ExportToCSV implements IStrategy {
private IEngine engine;
private IConsole console;
private IHistory history;
private IContext context;
private IIndicators indicators;
private IUserInterface userInterface;

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

@Configurable("Period")
public Period period = Period.ONE_MIN;

@Configurable("OfferSide")
public OfferSide offerSide = OfferSide.BID;

@Configurable("File")
public File file;

private Writer out;
private DateFormat dateFormat;
private DecimalFormat priceFormat;

public void onStart(IContext context) throws JFException {
this.engine = context.getEngine();
this.console = context.getConsole();
this.history = context.getHistory();
this.context = context;
this.indicators = context.getIndicators();
this.userInterface = context.getUserInterface();

dateFormat = new SimpleDateFormat("yyyy.MM.dd,HH:mm");
dateFormat.setTimeZone(TimeZone.getTimeZone("GMT") );

priceFormat = new DecimalFormat("0.#####");

if (file == null || file.getPath().equals("")) {
console.getErr().println("File not selected");
context.stop();
return;
}
try {
out = new BufferedWriter(new FileWriter(file));
} catch (Exception e) {
console.getErr().println(e.getMessage());
e.printStackTrace(console.getErr());
context.stop();
}
}

public void onAccount(IAccount account) throws JFException {
}

public void onMessage(IMessage message) throws JFException {
}

public void onStop() throws JFException {
if (out != null) {
try {
out.close();
} catch (Exception e) {
console.getErr().println(e.getMessage());
e.printStackTrace(console.getErr());
context.stop();
}
}
}

public void onTick(Instrument instrument, ITick tick) throws JFException {
}

public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
if (instrument != this.instrument || period != this.period) {
return;
}
IBar bar = offerSide == OfferSide.ASK ? askBar : bidBar;
try {
out.write(dateFormat.format(bar.getTime()) + "," + priceFormat.format(bar.getOpen()) + "," + priceFormat.format(bar.getHigh()) + ","
+ priceFormat.format(bar.getLow()) + "," + priceFormat.format(bar.getClose()) + "," + priceFormat.format(askBar.getVolume()) + "\r\n");
} catch (Exception e) {
console.getErr().println(e.getMessage());
e.printStackTrace(console.getErr());
context.stop();
}
}
}

[r035198x]

Consider using quartz

[Norm]

There are several classes you can use to schedule a task to run on its own thread. You would have to consider locking the resources or blocking updates while the background thread is outputing the data.

[franky]

Thank you all for pointing me in the right direction. Though some experiences
in other languages, I am new to java and may take time to figure it out
eventually.

[Norm]

Be sure to look in the Java Tutorial. There are a lot of good examples there.