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 package org.apache.xerces.util;
18
19 import java.util.Locale;
20 import java.util.MissingResourceException;
21 import java.util.ResourceBundle;
22 import java.util.PropertyResourceBundle;
23
24 /**
25 * Used to format SAX error messages using a specified locale.
26 *
27 * @author Michael Glavassevich, IBM
28 *
29 * @version $Id: SAXMessageFormatter.java 447241 2006-09-18 05:12:57Z mrglavas $
30 */
31 public class SAXMessageFormatter {
32
33 /**
34 * Formats a message with the specified arguments using the given
35 * locale information.
36 *
37 * @param locale The locale of the message.
38 * @param key The message key.
39 * @param arguments The message replacement text arguments. The order
40 * of the arguments must match that of the placeholders
41 * in the actual message.
42 *
43 * @return the formatted message.
44 *
45 * @throws MissingResourceException Thrown if the message with the
46 * specified key cannot be found.
47 */
48 public static String formatMessage(Locale locale,
49 String key, Object[] arguments)
50 throws MissingResourceException {
51
52 ResourceBundle resourceBundle = null;
53 if (locale != null) {
54 resourceBundle =
55 PropertyResourceBundle.getBundle("org.apache.xerces.impl.msg.SAXMessages", locale);
56 }
57 else {
58 resourceBundle =
59 PropertyResourceBundle.getBundle("org.apache.xerces.impl.msg.SAXMessages");
60 }
61
62 // format message
63 String msg;
64 try {
65 msg = resourceBundle.getString(key);
66 if (arguments != null) {
67 try {
68 msg = java.text.MessageFormat.format(msg, arguments);
69 }
70 catch (Exception e) {
71 msg = resourceBundle.getString("FormatFailed");
72 msg += " " + resourceBundle.getString(key);
73 }
74 }
75 }
76
77 // error
78 catch (MissingResourceException e) {
79 msg = resourceBundle.getString("BadMessageKey");
80 throw new MissingResourceException(key, msg, key);
81 }
82
83 // no message
84 if (msg == null) {
85 msg = key;
86 if (arguments.length > 0) {
87 StringBuffer str = new StringBuffer(msg);
88 str.append('?');
89 for (int i = 0; i < arguments.length; i++) {
90 if (i > 0) {
91 str.append('&');
92 }
93 str.append(String.valueOf(arguments[i]));
94 }
95 }
96 }
97 return msg;
98 }
99 }
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