1 /*
2 * Copyright (C) 2016 Hobrasoft s.r.o.
3 *
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Affero General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Affero General Public License for more details.
13 *
14 * You should have received a copy of the GNU Affero General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17 package cz.hobrasoft.pdfmu;
18
19 import java.util.Collection;
20 import java.util.Properties;
21 import org.apache.commons.collections4.CollectionUtils;
22
23 /**
24 * Properties with integer values
25 *
26 * @author <a href="mailto:filip.bartek@hobrasoft.cz">Filip Bartek</a>
27 */
28 public class IntProperties extends Properties {
29
30 private final int def;
31
32 /**
33 * Creates an empty property list with a default value.
34 *
35 * @param def the default property value.
36 */
37 public IntProperties(int def) {
38 super();
39 this.def = def;
40 }
41
42 /**
43 * Returns the integer value of the property with the specified key in this
44 * property list. The underlying {@link String} value is converted to an
45 * integer using {@link Integer#parseInt(String)}.
46 *
47 * @param key the property key.
48 * @return the value associated with the specified key, or the default value
49 * if the property is not found.
50 */
51 public int getIntProperty(String key) {
52 String valueString = getProperty(key);
53 if (valueString != null) {
54 return Integer.parseInt(valueString);
55 } else {
56 return def;
57 }
58 }
59
60 /**
61 * Returns a {@link Collection} of {@link Integer} property values in this
62 * {@link IntProperties}.
63 *
64 * <p>
65 * Ignores the defaults.
66 *
67 * @return a collection of integer values in this instance of
68 * {@link IntProperties}.
69 */
70 public Collection<Integer> intPropertyValues() {
71 Collection<Integer> intValues = CollectionUtils.collect(values(), IntegerValueTransformer.integerValueTransformer());
72 // TODO?: Collect values from `defaults` recursively
73 return intValues;
74 }
75 }