1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.scm.util;
20
21 import java.text.DateFormat;
22 import java.text.ParseException;
23 import java.text.SimpleDateFormat;
24 import java.util.Date;
25 import java.util.Locale;
26
27 import org.codehaus.plexus.util.StringUtils;
28 import org.codehaus.plexus.util.cli.StreamConsumer;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
31
32 /**
33 * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
34 *
35 */
36 public abstract class AbstractConsumer implements StreamConsumer {
37 protected final Logger logger = LoggerFactory.getLogger(getClass());
38
39 /**
40 * Converts the date timestamp from the output into a date object.
41 *
42 * @param date TODO
43 * @param userPattern TODO
44 * @param defaultPattern TODO
45 * @return A date representing the timestamp of the log entry.
46 */
47 protected Date parseDate(String date, String userPattern, String defaultPattern) {
48 return parseDate(date, userPattern, defaultPattern, null);
49 }
50
51 /**
52 * Converts the date timestamp from the output into a date object.
53 *
54 * @param date TODO
55 * @param userPattern TODO
56 * @param defaultPattern TODO
57 * @param locale TODO
58 * @return A date representing the timestamp of the log entry.
59 */
60 protected Date parseDate(String date, String userPattern, String defaultPattern, Locale locale) {
61 DateFormat format;
62
63 String patternUsed = null;
64 Locale localeUsed = null;
65
66 if (StringUtils.isNotEmpty(userPattern)) {
67 if (locale != null) {
68 format = new SimpleDateFormat(userPattern, locale);
69 localeUsed = locale;
70 } else {
71 format = new SimpleDateFormat(userPattern);
72 localeUsed = Locale.getDefault();
73 }
74 patternUsed = userPattern;
75 } else {
76 if (StringUtils.isNotEmpty(defaultPattern)) {
77 if (locale != null) {
78 format = new SimpleDateFormat(defaultPattern, locale);
79 localeUsed = locale;
80 } else {
81 format = new SimpleDateFormat(defaultPattern);
82 localeUsed = Locale.getDefault();
83 }
84 patternUsed = defaultPattern;
85 } else {
86 // Use the English short date pattern if no pattern is specified
87 format = DateFormat.getDateInstance(DateFormat.SHORT, Locale.ENGLISH);
88 patternUsed = "DateFormat.SHORT";
89 localeUsed = Locale.ENGLISH;
90 }
91 }
92
93 try {
94 return format.parse(date);
95 } catch (ParseException e) {
96 if (logger.isWarnEnabled()) {
97 logger.warn(
98 "skip ParseException: " + e.getMessage() + " during parsing date '" + date
99 + "' with pattern '" + patternUsed + "' and locale '"
100 + localeUsed + "'",
101 e);
102 }
103
104 return null;
105 }
106 }
107 }