1 | package org.springframework.batch.item.transform; |
2 | |
3 | import org.springframework.batch.item.ItemWriter; |
4 | import org.springframework.batch.item.support.DelegatingItemWriter; |
5 | import org.springframework.util.Assert; |
6 | |
7 | /** |
8 | * Transforms the item using injected {@link ItemTransformer} |
9 | * before it is written to output by {@link ItemWriter}. |
10 | * |
11 | * @author Robert Kasanicky |
12 | */ |
13 | public class ItemTransformerItemWriter extends DelegatingItemWriter { |
14 | |
15 | private ItemTransformer itemTransformer; |
16 | |
17 | /** |
18 | * Transform the item using the {@link #setItemTransformer(ItemTransformer)}. |
19 | */ |
20 | protected Object doProcess(Object item) throws Exception { |
21 | return itemTransformer.transform(item); |
22 | } |
23 | |
24 | /** |
25 | * @param itemTransformer will transform the item before |
26 | * it is passed to {@link ItemWriter}. |
27 | */ |
28 | public void setItemTransformer(ItemTransformer itemTransformer) { |
29 | this.itemTransformer = itemTransformer; |
30 | } |
31 | |
32 | public void afterPropertiesSet() throws Exception { |
33 | super.afterPropertiesSet(); |
34 | Assert.notNull(itemTransformer); |
35 | } |
36 | } |