org.springframework.batch.core.jsr.ChunkListenerAdapter Maven / Gradle / Ivy
/*
* Copyright 2013-2014 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
*
* https://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.jsr;
import javax.batch.operations.BatchRuntimeException;
import org.springframework.batch.core.ChunkListener;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.UncheckedTransactionException;
import org.springframework.util.Assert;
/**
* Wrapper class to adapt the {@link javax.batch.api.chunk.listener.ChunkListener} to
* a {@link ChunkListener}.
*
* @author Michael Minella
* @since 3.0
*/
public class ChunkListenerAdapter implements ChunkListener {
private final javax.batch.api.chunk.listener.ChunkListener delegate;
/**
* @param delegate to be called within the step chunk lifecycle
*/
public ChunkListenerAdapter(javax.batch.api.chunk.listener.ChunkListener delegate) {
Assert.notNull(delegate, "A ChunkListener is required");
this.delegate = delegate;
}
@Override
public void beforeChunk(ChunkContext context) {
try {
delegate.beforeChunk();
} catch (Exception e) {
throw new UncheckedTransactionException(e);
}
}
@Override
public void afterChunk(ChunkContext context) {
try {
delegate.afterChunk();
} catch (Exception e) {
throw new UncheckedTransactionException(e);
}
}
@Override
public void afterChunkError(ChunkContext context) {
if(context != null) {
try {
delegate.onError((Exception) context.getAttribute(ChunkListener.ROLLBACK_EXCEPTION_KEY));
} catch (Exception e) {
throw new UncheckedTransactionException(e);
}
} else {
throw new BatchRuntimeException("Unable to retrieve causing exception due to null ChunkContext");
}
}
}