capture screen in sikuli as evidence

I want screen capture for each step in my test cases, I have not found a good practice please Help, I am using sikuli with Eclipse and Java selenium Annex my Code for more understanding Code

public class Factura_Nueva {



WebDriver screen;
ExtentReports extent;
ExtentTest logger;

 @BeforeTest
    public void startReport() {

    extent = new ExtentReports(System.getProperty("user.dir") + "/Evidencia/Informe_de_Pruebas.html", true);
    extent.addSystemInfo("HostName", "Ofimia").addSystemInfo("Eviroment", "QA").addSystemInfo("User Name",
            "Andres Contreras");
    extent.loadConfig(new File(System.getProperty("user.dir") + "\extent-config.xml"));

}
 @BeforeMethod
public void setUp() throws Exception {
}

 @Test
public   void IngresoUsuario() throws FindFailed, InterruptedException, IOException, AWTException{


    logger = extent.startTest("IngresoUsuario");

    Screen screen = new Screen();



    //1. ingresar al sistema
    screen.doubleClick(aplicaion);

    //2. ingresar de usuario
    screen.wait(Ingreso_Usuario);
    screen.click(Ingreso_Usuario);



    screen.type(Key.DELETE+Key.DELETE+Key.DELETE+Key.DELETE+Key.DELETE+Key.DELETE+Key.DELETE);
    screen.type("Andres"+Key.ENTER+Key.ENTER+Key.ENTER+Key.ENTER+Key.ENTER);


    //3. Seleccion de version
    screen.wait(Seleccion_Version,1000);
    screen.click(Seleccion_Version.targetOffset(80,50));


    //4.salir
    screen.wait(Salir,1000);
    screen.click(Salir.targetOffset(0,1));



    Assert.assertTrue(true);
    logger.log(LogStatus.PASS, "El Caso de prueba Paso");



}

@Test
public   void IngresoFacturaNueva() throws FindFailed, InterruptedException,     IOException{


logger = extent.startTest("IngresoFacturaNueva");

Screen screen = new Screen();




//1. ingresar al sistema
screen.doubleClick(aplicaion);

//2. ingresar de usuario
screen.wait(Ingreso_Usuario);
screen.click(Ingreso_Usuario);

//14.IngresoProducto-INGRESO SELECCION DE BODEGA
screen.click(IngresoProducto.targetOffset(-312,7));



Assert.assertTrue(true);
logger.log(LogStatus.PASS, "El Caso de prueba Paso");



  }
  @AfterMethod
  public void getResult(ITestResult result) throws IOException {
  if (result.getStatus() == ITestResult.FAILURE) {
    logger.log(LogStatus.FAIL, "El caso de prueba fallido  " +     
  result.getName());
    logger.log(LogStatus.FAIL, "El caso de prueba fallido  " +     
  result.getThrowable());
    String screenshotPath = null;

    try {
        screenshotPath = CapturaFallidaFactura.getScreenhot(screen, 
    result.getName());
    } catch (Exception e) {

        e.printStackTrace();
    }

    logger.log(LogStatus.FAIL, logger.addScreenCapture(screenshotPath));
} else if (result.getStatus() == ITestResult.SKIP) {
    logger.log(LogStatus.SKIP, "Test Case Skipped is " + result.getName());
}

extent.endTest(logger);

 }
    @AfterTest
    public void endReport() {

    extent.flush();
   extent.close();

 }