1 /*
2 * Copyright 2006-2007 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.springframework.batch.sample.domain.trade.internal;
18
19 import org.springframework.batch.item.ItemProcessor;
20 import org.springframework.batch.item.validator.ValidationException;
21 import org.springframework.batch.sample.domain.trade.Trade;
22
23 /**
24 * Processes the Trade - throwing validation errors if necessary.
25 */
26 public class TradeProcessor implements ItemProcessor<Trade, Trade> {
27
28 private int failure = -1;
29
30 private int index = 0;
31
32 private Trade failedItem = null;
33
34 /**
35 * Public setter for the the index on which failure should occur.
36 *
37 * @param failure the failure to set
38 */
39 public void setValidationFailure(int failure) {
40 this.failure = failure;
41 }
42
43 public Trade process(Trade item) throws Exception {
44 if ((failedItem == null && index++ == failure) || (failedItem != null && failedItem.equals(item))) {
45 failedItem = item;
46 throw new ValidationException("Some bad data for " + failedItem);
47 }
48 return item;
49 }
50 }