/*
* Copyright 2006-2014 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
*
* 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.sample.support;
import java.util.List;
import org.springframework.batch.item.ItemWriter;
/**
* Simulates temporary output trouble - requires to retry 3 times to pass
* successfully.
*
* @author Robert Kasanicky
*/
public class RetrySampleItemWriter<T> implements ItemWriter<T> {
private int counter = 0;
@Override
public void write(List<? extends T> items) throws Exception {
int current = counter;
counter += items.size();
if (current < 3 && (counter >= 2 || counter >= 3)) {
throw new IllegalStateException("Temporary error");
}
}
/**
* @return number of times {@link #write(List)} method was called.
*/
public int getCounter() {
return counter;
}
}