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 * http://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 package org.apache.struts2.jasper.compiler;
19
20 import java.text.MessageFormat;
21 import java.util.MissingResourceException;
22 import java.util.ResourceBundle;
23
24 /***
25 * Class responsible for converting error codes to corresponding localized
26 * error messages.
27 *
28 * @author Jan Luehe
29 */
30 public class Localizer {
31
32 private static ResourceBundle bundle = null;
33
34 static {
35 try {
36 bundle = ResourceBundle.getBundle(
37 "org.apache.struts2.jasper.resources.LocalStrings");
38 } catch (Throwable t) {
39 t.printStackTrace();
40 }
41 }
42
43 /*
44 * Returns the localized error message corresponding to the given error
45 * code.
46 *
47 * If the given error code is not defined in the resource bundle for
48 * localized error messages, it is used as the error message.
49 *
50 * @param errCode Error code to localize
51 *
52 * @return Localized error message
53 */
54 public static String getMessage(String errCode) {
55 String errMsg = errCode;
56 try {
57 errMsg = bundle.getString(errCode);
58 } catch (MissingResourceException e) {
59 }
60 return errMsg;
61 }
62
63 /*
64 * Returns the localized error message corresponding to the given error
65 * code.
66 *
67 * If the given error code is not defined in the resource bundle for
68 * localized error messages, it is used as the error message.
69 *
70 * @param errCode Error code to localize
71 * @param arg Argument for parametric replacement
72 *
73 * @return Localized error message
74 */
75 public static String getMessage(String errCode, String arg) {
76 return getMessage(errCode, new Object[]{arg});
77 }
78
79 /*
80 * Returns the localized error message corresponding to the given error
81 * code.
82 *
83 * If the given error code is not defined in the resource bundle for
84 * localized error messages, it is used as the error message.
85 *
86 * @param errCode Error code to localize
87 * @param arg1 First argument for parametric replacement
88 * @param arg2 Second argument for parametric replacement
89 *
90 * @return Localized error message
91 */
92 public static String getMessage(String errCode, String arg1, String arg2) {
93 return getMessage(errCode, new Object[]{arg1, arg2});
94 }
95
96 /*
97 * Returns the localized error message corresponding to the given error
98 * code.
99 *
100 * If the given error code is not defined in the resource bundle for
101 * localized error messages, it is used as the error message.
102 *
103 * @param errCode Error code to localize
104 * @param arg1 First argument for parametric replacement
105 * @param arg2 Second argument for parametric replacement
106 * @param arg3 Third argument for parametric replacement
107 *
108 * @return Localized error message
109 */
110 public static String getMessage(String errCode, String arg1, String arg2,
111 String arg3) {
112 return getMessage(errCode, new Object[]{arg1, arg2, arg3});
113 }
114
115 /*
116 * Returns the localized error message corresponding to the given error
117 * code.
118 *
119 * If the given error code is not defined in the resource bundle for
120 * localized error messages, it is used as the error message.
121 *
122 * @param errCode Error code to localize
123 * @param arg1 First argument for parametric replacement
124 * @param arg2 Second argument for parametric replacement
125 * @param arg3 Third argument for parametric replacement
126 * @param arg4 Fourth argument for parametric replacement
127 *
128 * @return Localized error message
129 */
130 public static String getMessage(String errCode, String arg1, String arg2,
131 String arg3, String arg4) {
132 return getMessage(errCode, new Object[]{arg1, arg2, arg3, arg4});
133 }
134
135 /*
136 * Returns the localized error message corresponding to the given error
137 * code.
138 *
139 * If the given error code is not defined in the resource bundle for
140 * localized error messages, it is used as the error message.
141 *
142 * @param errCode Error code to localize
143 * @param args Arguments for parametric replacement
144 *
145 * @return Localized error message
146 */
147 public static String getMessage(String errCode, Object[] args) {
148 String errMsg = errCode;
149 try {
150 errMsg = bundle.getString(errCode);
151 if (args != null) {
152 MessageFormat formatter = new MessageFormat(errMsg);
153 errMsg = formatter.format(args);
154 }
155 } catch (MissingResourceException e) {
156 }
157
158 return errMsg;
159 }
160 }