package capture;

import net.sourceforge.jpcap.capture.PacketCapture;

/**
 * Captures network traffic and passes it off to a handler.
 *
 * User: joe.hancock@gmail.com
 * Date: 29-Nov-2005
 * Time: 20:06:58
 */

class MainCapture  {

    private String filter;
    private String device;

    public MainCapture(String device, String filter)   {
        this.filter = filter;
        this.device = device;
    }

    /**
     * Initializes the network device and applies the filters.
     *
     * @throws Exception
     */
    public void initCapture() throws Exception   {
        PacketCapture captureDriver = new PacketCapture();

        try {
            captureDriver.open(device, true);
        }
        catch (Exception e) {
            e.printStackTrace();
        }

        captureDriver.setFilter(filter, true);
        captureDriver.addPacketListener(new AddressTCPPacketHandler());

        captureDriver.capture(-1);
    }
}