/*
* Copyright 2006-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.batch.core.listener;
import java.util.List;
import javax.batch.api.chunk.listener.RetryProcessListener;
import javax.batch.api.chunk.listener.RetryReadListener;
import javax.batch.api.chunk.listener.RetryWriteListener;
import javax.batch.operations.BatchRuntimeException;
import org.springframework.batch.core.ChunkListener;
import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.ItemProcessListener;
import org.springframework.batch.core.ItemReadListener;
import org.springframework.batch.core.ItemWriteListener;
import org.springframework.batch.core.SkipListener;
import org.springframework.batch.core.StepExecution;
import org.springframework.batch.core.StepExecutionListener;
import org.springframework.batch.core.StepListener;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.item.ItemStream;
/**
* @author Dave Syer
* @author Michael Minella
* @author Chris Schaefer
*/
public class MulticasterBatchListener<T, S> implements StepExecutionListener, ChunkListener, ItemReadListener<T>,
ItemProcessListener<T, S>, ItemWriteListener<S>, SkipListener<T, S>, RetryReadListener, RetryProcessListener, RetryWriteListener {
private CompositeStepExecutionListener stepListener = new CompositeStepExecutionListener();
private CompositeChunkListener chunkListener = new CompositeChunkListener();
private CompositeItemReadListener<T> itemReadListener = new CompositeItemReadListener<T>();
private CompositeItemProcessListener<T, S> itemProcessListener = new CompositeItemProcessListener<T, S>();
private CompositeItemWriteListener<S> itemWriteListener = new CompositeItemWriteListener<S>();
private CompositeSkipListener<T, S> skipListener = new CompositeSkipListener<T, S>();
private CompositeRetryReadListener retryReadListener = new CompositeRetryReadListener();
private CompositeRetryProcessListener retryProcessListener = new CompositeRetryProcessListener();
private CompositeRetryWriteListener retryWriteListener = new CompositeRetryWriteListener();
/**
* Initialize the listener instance.
*/
public MulticasterBatchListener() {
super();
}
/**
* Register each of the objects as listeners. Once registered, calls to the
* {@link MulticasterBatchListener} broadcast to the individual listeners.
*
* @param listeners listener objects of types known to the multicaster.
*/
public void setListeners(List<? extends StepListener> listeners) {
for (StepListener stepListener : listeners) {
register(stepListener);
}
}
/**
* Register the listener for callbacks on the appropriate interfaces
* implemented. Any {@link StepListener} can be provided, or an
* {@link ItemStream}. Other types will be ignored.
*/
public void register(StepListener listener) {
if (listener instanceof StepExecutionListener) {
this.stepListener.register((StepExecutionListener) listener);
}
if (listener instanceof ChunkListener) {
this.chunkListener.register((ChunkListener) listener);
}
if (listener instanceof ItemReadListener<?>) {
@SuppressWarnings("unchecked")
ItemReadListener<T> itemReadListener = (ItemReadListener<T>) listener;
this.itemReadListener.register(itemReadListener);
}
if (listener instanceof ItemProcessListener<?, ?>) {
@SuppressWarnings("unchecked")
ItemProcessListener<T, S> itemProcessListener = (ItemProcessListener<T, S>) listener;
this.itemProcessListener.register(itemProcessListener);
}
if (listener instanceof ItemWriteListener<?>) {
@SuppressWarnings("unchecked")
ItemWriteListener<S> itemWriteListener = (ItemWriteListener<S>) listener;
this.itemWriteListener.register(itemWriteListener);
}
if (listener instanceof SkipListener<?, ?>) {
@SuppressWarnings("unchecked")
SkipListener<T, S> skipListener = (SkipListener<T, S>) listener;
this.skipListener.register(skipListener);
}
if(listener instanceof RetryReadListener) {
this.retryReadListener.register((RetryReadListener) listener);
}
if(listener instanceof RetryProcessListener) {
this.retryProcessListener.register((RetryProcessListener) listener);
}
if(listener instanceof RetryWriteListener) {
this.retryWriteListener.register((RetryWriteListener) listener);
}
}
/**
* @param item
* @param result
* @see org.springframework.batch.core.listener.CompositeItemProcessListener#afterProcess(java.lang.Object,
* java.lang.Object)
*/
@Override
public void afterProcess(T item, S result) {
try {
itemProcessListener.afterProcess(item, result);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in afterProcess.", e);
}
}
/**
* @param item
* @see org.springframework.batch.core.listener.CompositeItemProcessListener#beforeProcess(java.lang.Object)
*/
@Override
public void beforeProcess(T item) {
try {
itemProcessListener.beforeProcess(item);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in beforeProcess.", e);
}
}
/**
* @param item
* @param ex
* @see org.springframework.batch.core.listener.CompositeItemProcessListener#onProcessError(java.lang.Object,
* java.lang.Exception)
*/
@Override
public void onProcessError(T item, Exception ex) {
try {
itemProcessListener.onProcessError(item, ex);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in onProcessError.", e);
}
}
/**
* @see org.springframework.batch.core.listener.CompositeStepExecutionListener#afterStep(StepExecution)
*/
@Override
public ExitStatus afterStep(StepExecution stepExecution) {
try {
return stepListener.afterStep(stepExecution);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in afterStep.", e);
}
}
/**
* @param stepExecution
* @see org.springframework.batch.core.listener.CompositeStepExecutionListener#beforeStep(org.springframework.batch.core.StepExecution)
*/
@Override
public void beforeStep(StepExecution stepExecution) {
try {
stepListener.beforeStep(stepExecution);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in beforeStep.", e);
}
}
/**
*
* @see org.springframework.batch.core.listener.CompositeChunkListener#afterChunk(ChunkContext context)
*/
@Override
public void afterChunk(ChunkContext context) {
try {
chunkListener.afterChunk(context);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in afterChunk.", e);
}
}
/**
*
* @see org.springframework.batch.core.listener.CompositeChunkListener#beforeChunk(ChunkContext context)
*/
@Override
public void beforeChunk(ChunkContext context) {
try {
chunkListener.beforeChunk(context);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in beforeChunk.", e);
}
}
/**
* @param item
* @see org.springframework.batch.core.listener.CompositeItemReadListener#afterRead(java.lang.Object)
*/
@Override
public void afterRead(T item) {
try {
itemReadListener.afterRead(item);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in afterRead.", e);
}
}
/**
*
* @see org.springframework.batch.core.listener.CompositeItemReadListener#beforeRead()
*/
@Override
public void beforeRead() {
try {
itemReadListener.beforeRead();
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in beforeRead.", e);
}
}
/**
* @param ex
* @see org.springframework.batch.core.listener.CompositeItemReadListener#onReadError(java.lang.Exception)
*/
@Override
public void onReadError(Exception ex) {
try {
itemReadListener.onReadError(ex);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in onReadError.", e);
}
}
/**
*
* @see ItemWriteListener#afterWrite(List)
*/
@Override
public void afterWrite(List<? extends S> items) {
try {
itemWriteListener.afterWrite(items);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in afterWrite.", e);
}
}
/**
* @param items
* @see ItemWriteListener#beforeWrite(List)
*/
@Override
public void beforeWrite(List<? extends S> items) {
try {
itemWriteListener.beforeWrite(items);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in beforeWrite.", e);
}
}
/**
* @param ex
* @param items
* @see ItemWriteListener#onWriteError(Exception, List)
*/
@Override
public void onWriteError(Exception ex, List<? extends S> items) {
try {
itemWriteListener.onWriteError(ex, items);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in onWriteError.", e);
}
}
/**
* @param t
* @see org.springframework.batch.core.listener.CompositeSkipListener#onSkipInRead(java.lang.Throwable)
*/
@Override
public void onSkipInRead(Throwable t) {
skipListener.onSkipInRead(t);
}
/**
* @param item
* @param t
* @see org.springframework.batch.core.listener.CompositeSkipListener#onSkipInWrite(java.lang.Object,
* java.lang.Throwable)
*/
@Override
public void onSkipInWrite(S item, Throwable t) {
skipListener.onSkipInWrite(item, t);
}
/**
* @param item
* @param t
* @see org.springframework.batch.core.listener.CompositeSkipListener#onSkipInProcess(Object,
* Throwable)
*/
@Override
public void onSkipInProcess(T item, Throwable t) {
skipListener.onSkipInProcess(item, t);
}
@Override
public void afterChunkError(ChunkContext context) {
try {
chunkListener.afterChunkError(context);
}
catch (RuntimeException e) {
throw new StepListenerFailedException("Error in afterFailedChunk.", e);
}
}
@Override
public void onRetryReadException(Exception ex) throws Exception {
try {
retryReadListener.onRetryReadException(ex);
} catch (Exception e) {
throw new BatchRuntimeException(e);
}
}
@Override
public void onRetryProcessException(Object item, Exception ex) throws Exception {
try {
retryProcessListener.onRetryProcessException(item, ex);
} catch (Exception e) {
throw new BatchRuntimeException(e);
}
}
@Override
public void onRetryWriteException(List<Object> items, Exception ex) throws Exception {
try {
retryWriteListener.onRetryWriteException(items, ex);
} catch (Exception e) {
throw new BatchRuntimeException(e);
}
}
}