Overview (Java Fiscal Device API

Packages
Package	Description
com.taliter.fiscal.device	An API to communicate with fiscal devices.
com.taliter.fiscal.device.hasar	An API implementation used to communicate with Hasar fiscal devices such as fiscal printers.
com.taliter.fiscal.port	A bidirectional stream channel API.
com.taliter.fiscal.port.rxtx	A bidirectional stream channel API implementation that uses RXTX or nrjavaserial to communicate over serial ports.
com.taliter.fiscal.port.serial	A bidirectional stream channel API implementation that uses the `javax.comm` API to communicate over serial ports.
com.taliter.fiscal.util	Loggers and other tools.

The Fiscal Device API is a medium-level API to communicate with fiscal devices such as fiscal printers.

Here is a simple example that obtains the date and time from a Hasar fiscal printer:

import java.util.*;

import com.taliter.fiscal.device.*;
import com.taliter.fiscal.device.hasar.*;
import com.taliter.fiscal.port.serial.*;
import com.taliter.fiscal.util.*;

/** A simple example that obtains the date and time from a Hasar fiscal printer in COM1. */
public class Sample implements HasarConstants
{
    public static void main(String[] args) throws Exception
    {
        // Source or factory objects encapsulate all configuration data and are serializable.
        // Normally they would be obtained from some persistent representation such as XML,
        // but here we will just instantiate what we need for simplicity.
        FiscalDeviceSource deviceSource = new HasarFiscalDeviceSource(new SerialFiscalPortSource("COM1"));

        // Obtain an interface to the device.
        FiscalDevice device = deviceSource.getFiscalDevice();

        // Plug an event handler that logs the events triggered by the device.
        device.setEventHandler(new LoggerFiscalDeviceEventHandler(System.out));

        device.open();  // Open the device and synchronize communications.

        try     // Close the device even in the event of an error.
        {
            FiscalPacket request = device.createFiscalPacket(); // Create a request packet.
            request.setCommandCode(CMD_GET_DATE_TIME);          // Set the appropriate command code.
            FiscalPacket response = device.execute(request);    // Execute the request.
            Date date = response.getDateAndTime(3, 4);          // Get the date and time from the response
                                                                // using the default calendar and time-zone
                                                                // to interpret the returned fields.

            System.out.println("Date: " + date);    // Output the returned date.
        }
        finally { device.close(); }     // Close the device.
    }
}

The output would be something like this:

event: onExecute (request: { 59 }, response: { 59 "8004" "0000" "031002" "034242" })
Date: Thu Oct 02 03:42:42 ART 2003

Java Fiscal Device API - 1.1.0