1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * https://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 /*
19 * This is not the original file distributed by the Apache Software Foundation
20 * It has been modified by the Hipparchus project
21 */
22 package org.hipparchus.transform;
23
24 import java.util.Locale;
25 import java.util.MissingResourceException;
26 import java.util.ResourceBundle;
27
28 import org.hipparchus.exception.Localizable;
29 import org.hipparchus.exception.UTF8Control;
30
31 /**
32 * Enumeration for localized messages formats used in exceptions messages.
33 * <p>
34 * The constants in this enumeration represent the available
35 * formats as localized strings. These formats are intended to be
36 * localized using simple properties files, using the constant
37 * name as the key and the property value as the message format.
38 * The source English format is provided in the constants themselves
39 * to serve both as a reminder for developers to understand the parameters
40 * needed by each format, as a basis for translators to create
41 * localized properties files, and as a default format if some
42 * translation is missing.
43 * </p>
44 */
45 public enum LocalizedFFTFormats implements Localizable {
46
47 /** FIRST_ELEMENT_NOT_ZERO. */
48 FIRST_ELEMENT_NOT_ZERO("first element is not 0: {0}"),
49
50 /** NOT_POWER_OF_TWO. */
51 NOT_POWER_OF_TWO("{0} is not a power of 2"),
52
53 /** NOT_POWER_OF_TWO_CONSIDER_PADDING. */
54 NOT_POWER_OF_TWO_CONSIDER_PADDING("{0} is not a power of 2, consider padding for fix"),
55
56 /** NOT_POWER_OF_TWO_PLUS_ONE. */
57 NOT_POWER_OF_TWO_PLUS_ONE("{0} is not a power of 2 plus one");
58
59 /** Source English format. */
60 private final String sourceFormat;
61
62 /** Simple constructor.
63 * @param sourceFormat source English format to use when no
64 * localized version is available
65 */
66 LocalizedFFTFormats(final String sourceFormat) {
67 this.sourceFormat = sourceFormat;
68 }
69
70 /** {@inheritDoc} */
71 @Override
72 public String getSourceString() {
73 return sourceFormat;
74 }
75
76 /** {@inheritDoc} */
77 @Override
78 public String getLocalizedString(final Locale locale) {
79 try {
80 final String path = LocalizedFFTFormats.class.getName().replaceAll("\\.", "/");
81 ResourceBundle bundle =
82 ResourceBundle.getBundle("assets/" + path, locale, new UTF8Control());
83 if (bundle.getLocale().getLanguage().equals(locale.getLanguage())) {
84 final String translated = bundle.getString(name());
85 if ((translated != null) &&
86 (translated.length() > 0) &&
87 (!translated.toLowerCase(locale).contains("missing translation"))) {
88 // the value of the resource is the translated format
89 return translated;
90 }
91 }
92
93 } catch (MissingResourceException mre) { // NOPMD
94 // do nothing here
95 }
96
97 // either the locale is not supported or the resource is unknown
98 // don't translate and fall back to using the source format
99 return sourceFormat;
100
101 }
102
103 }