Example usage for org.springframework.batch.core.step.item Chunk getSkips

Introduction

In this page you can find the example usage for org.springframework.batch.core.step.item Chunk getSkips.

Prototype

public List<SkipWrapper<W>> getSkips() 

Source Link

Usage

From source file:org.springframework.batch.core.step.item.FaultTolerantChunkProcessor.java

@Override
protected boolean isComplete(Chunk<I> inputs) {

    /*/*  w  w w. j a v  a2s  . c  o  m*/
     * Need to remember the write skips across transactions, otherwise they
     * keep coming back. Since we register skips with the inputs they will
     * not be processed again but the output skips need to be saved for
     * registration later with the listeners. The inputs are going to be the
     * same for all transactions processing the same chunk, but the outputs
     * are not, so we stash them in user data on the inputs.
     */

    @SuppressWarnings("unchecked")
    UserData<O> data = (UserData<O>) inputs.getUserData();
    Chunk<O> previous = data.getOutputs();

    return inputs.isEmpty() && previous.getSkips().isEmpty();

}

---

From source file:org.springframework.batch.core.step.item.FaultTolerantChunkProcessor.java

@Override
protected Chunk<O> getAdjustedOutputs(Chunk<I> inputs, Chunk<O> outputs) {

    @SuppressWarnings("unchecked")
    UserData<O> data = (UserData<O>) inputs.getUserData();
    Chunk<O> previous = data.getOutputs();

    Chunk<O> next = new Chunk<O>(outputs.getItems(), previous.getSkips());
    next.setBusy(previous.isBusy());/* w  ww  .ja  va  2  s . co m*/

    // Remember for next time if there are skips accumulating
    data.setOutputs(next);

    return next;

}

---

From source file:org.springframework.batch.core.step.item.FaultTolerantChunkProcessor.java

private void callSkipListeners(final Chunk<I> inputs, final Chunk<O> outputs) {

    for (SkipWrapper<I> wrapper : inputs.getSkips()) {
        I item = wrapper.getItem();// w w  w  .  j  av a  2s  .com
        if (item == null) {
            continue;
        }
        Throwable e = wrapper.getException();
        callProcessSkipListener(item, e);
    }

    for (SkipWrapper<O> wrapper : outputs.getSkips()) {
        Throwable e = wrapper.getException();
        try {
            getListener().onSkipInWrite(wrapper.getItem(), e);
        } catch (RuntimeException ex) {
            throw new SkipListenerFailedException("Fatal exception in SkipListener.", ex, e);
        }
    }

    // Clear skips if we are possibly going to process this chunk again
    outputs.clearSkips();
    inputs.clearSkips();

}

---