| ReverendFunWebCacheItem.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portlet.reverendfun.util;
24
25 import com.liferay.portal.kernel.util.CalendarFactoryUtil;
26 import com.liferay.portal.kernel.util.HttpUtil;
27 import com.liferay.portal.kernel.util.StringComparator;
28 import com.liferay.portal.kernel.util.Time;
29 import com.liferay.portal.kernel.webcache.WebCacheException;
30 import com.liferay.portal.kernel.webcache.WebCacheItem;
31
32 import java.text.DateFormat;
33 import java.text.SimpleDateFormat;
34
35 import java.util.Calendar;
36 import java.util.Set;
37 import java.util.TreeSet;
38
39 /**
40 * <a href="ReverendFunWebCacheItem.java.html"><b><i>View Source</i></b></a>
41 *
42 * @author Brian Wing Shun Chan
43 *
44 */
45 public class ReverendFunWebCacheItem implements WebCacheItem {
46
47 public ReverendFunWebCacheItem(String date) {
48 _date = date;
49 }
50
51 public Object convert(String key) throws WebCacheException {
52 Set<String> dates = new TreeSet<String>(
53 new StringComparator(false, true));
54
55 try {
56 DateFormat dateFormatYMD = new SimpleDateFormat("yyyyMMdd");
57 DateFormat dateFormatYM = new SimpleDateFormat("yyyyMM");
58
59 Calendar cal = CalendarFactoryUtil.getCalendar();
60
61 cal.setTime(dateFormatYMD.parse(_date));
62 cal.set(Calendar.DATE, 1);
63
64 Calendar now = CalendarFactoryUtil.getCalendar();
65
66 String url = "http://www.reverendfun.com/artchives/?search=";
67
68 while (cal.before(now)) {
69 String text = HttpUtil.URLtoString(
70 url + dateFormatYM.format(cal.getTime()));
71
72 int x = text.indexOf("date=");
73 int y = text.indexOf("\"", x);
74
75 while (x != -1 && y != -1) {
76 String fromDateString = text.substring(x + 5, y);
77
78 dates.add(fromDateString);
79
80 x = text.indexOf("date=", y);
81 y = text.indexOf("\"", x);
82 }
83
84 cal.add(Calendar.MONTH, 1);
85 }
86 }
87 catch (Exception e) {
88 throw new WebCacheException(_date + " " + e.toString());
89 }
90
91 return dates;
92 }
93
94 public long getRefreshTime() {
95 return _REFRESH_TIME;
96 }
97
98 private static final long _REFRESH_TIME = Time.DAY;
99
100 private String _date;
101
102 }