How to use

beforeProcess

method

in

org.springframework.batch.core.listener.MulticasterBatchListener

/**
 * Implements processing and all related listener calls.
 *
 * @param item the item to be processed
 * @return the processed item
 * @throws Exception thrown if error occurs during processing.
 */
protected final O doTransform(I item) throws Exception {
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}

/**
 * @param item the input item
 * @return the result of the processing
 * @throws Exception thrown if error occurs.
 */
protected final O doProcess(I item) throws Exception {
  if (itemProcessor == null) {
    @SuppressWarnings("unchecked")
    O result = (O) item;
    return result;
  }
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}

@Test
public void testBeforeProcessFails_withAnnotatedListener() {
  StepListener listener = StepListenerFactoryBean.getListener(new AnnotationBasedStepListener());
  multicast.register(listener);
  try {
    multicast.beforeProcess(null);
    fail("Expected StepListenerFailedException");
  } catch (StepListenerFailedException e) {
    // expected
    Throwable cause = e.getCause();
    String message = cause.getMessage();
    assertTrue(cause instanceof IllegalStateException);
    assertEquals("Wrong message: " + message, "listener error", message);
  }
}

/**
 * Implements processing and all related listener calls.
 *
 * @param item the item to be processed
 * @return the processed item
 * @throws Exception thrown if error occurs during processing.
 */
protected final O doTransform(I item) throws Exception {
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}

/**
 * @param item the input item
 * @return the result of the processing
 * @throws Exception thrown if error occurs.
 */
protected final O doProcess(I item) throws Exception {
  if (itemProcessor == null) {
    @SuppressWarnings("unchecked")
    O result = (O) item;
    return result;
  }
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}

/**
 * Implements processing and all related listener calls.
 *
 * @param item the item to be processed
 * @return the processed item
 * @throws Exception thrown if error occurs during processing.
 */
protected final O doTransform(I item) throws Exception {
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}

/**
 * Implements processing and all related listener calls.
 *
 * @param item the item to be processed
 * @return the processed item
 * @throws Exception
 */
protected final O doTransform(I item) throws Exception {
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}

/**
 * @param item the input item
 * @return the result of the processing
 * @throws Exception thrown if error occurs.
 */
protected final O doProcess(I item) throws Exception {
  if (itemProcessor == null) {
    @SuppressWarnings("unchecked")
    O result = (O) item;
    return result;
  }
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}

/**
 * @param item the input item
 * @return the result of the processing
 * @throws Exception
 */
protected final O doProcess(I item) throws Exception {
  if (itemProcessor==null) {
    @SuppressWarnings("unchecked")
    O result = (O) item;
    return result;
  }
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}

/**
 * @param item the input item
 * @return the result of the processing
 * @throws Exception
 */
protected final O doProcess(I item) throws Exception {
  if (itemProcessor == null) {
    @SuppressWarnings("unchecked")
    O result = (O) item;
    return result;
  }
  try {
    listener.beforeProcess(item);
    O result = itemProcessor.process(item);
    listener.afterProcess(item, result);
    return result;
  }
  catch (Exception e) {
    listener.onProcessError(item, e);
    throw e;
  }
}