1 package fr.ifremer.tutti.service.csv;
2
3 /*
4 * #%L
5 * Tutti :: Service
6 * $Id:$
7 * $HeadURL:$
8 * %%
9 * Copyright (C) 2012 - 2015 Ifremer
10 * %%
11 * This program is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation, either version 3 of the
14 * License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public
22 * License along with this program. If not, see
23 * <http://www.gnu.org/licenses/gpl-3.0.html>.
24 * #L%
25 */
26
27 import org.apache.commons.beanutils.NestedNullException;
28 import org.apache.commons.beanutils.PropertyUtils;
29 import org.nuiton.csv.ValueGetter;
30
31 import java.lang.reflect.InvocationTargetException;
32
33 /**
34 * Created on 2/5/15.
35 *
36 * @author Tony Chemit - chemit@codelutin.com
37 * @since 3.13
38 */
39 public class BeanNullableGetter<E, T> implements ValueGetter<E, T> {
40
41 protected String propertyName;
42
43 BeanNullableGetter(String propertyName) {
44 this.propertyName = propertyName;
45 }
46
47 @Override
48 public T get(E object) throws Exception {
49 T value;
50 try {
51 value = (T) PropertyUtils.getProperty(object, propertyName);
52 } catch (NestedNullException e) {
53 value = null;
54 } catch (InvocationTargetException e) {
55 if (e.getCause() instanceof NullPointerException) {
56 value = null;
57 } else {
58 throw e;
59 }
60 }
61 return value;
62 }
63 }