01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * 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: */package com.liferay.portlet.weather.util;
22:
23: import com.liferay.portal.kernel.util.GetterUtil;
24: import com.liferay.portal.kernel.webcache.WebCacheException;
25: import com.liferay.portal.kernel.webcache.WebCacheItem;
26: import com.liferay.portlet.weather.model.Weather;
27: import com.liferay.util.Html;
28: import com.liferay.util.Http;
29: import com.liferay.util.HttpUtil;
30: import com.liferay.util.Time;
31:
32: /**
33: * <a href="WeatherWebCacheItem.java.html"><b><i>View Source</i></b></a>
34: *
35: * @author Brian Wing Shun Chan
36: *
37: */
38: public class WeatherWebCacheItem implements WebCacheItem {
39:
40: public WeatherWebCacheItem(String zip) {
41: _zip = zip;
42: }
43:
44: public Object convert(String key) throws WebCacheException {
45: Weather weather = null;
46:
47: try {
48: String text = Html
49: .stripComments(Http
50: .URLtoString("http://weather.yahoo.com/search/weather2?p="
51: + HttpUtil.encodeURL(_zip)));
52:
53: int x = text.indexOf("forecast-temperature");
54:
55: x = text.indexOf("h3>", x) + 3;
56:
57: int y = text.indexOf("°", x);
58:
59: float temperature = GetterUtil.getFloat(text
60: .substring(x, y));
61:
62: x = text.indexOf("background:url(", x);
63: x = text.indexOf("http://", x);
64:
65: y = text.indexOf(".png", x) - 1;
66:
67: String iconURL = text.substring(x, y) + "s.png";
68:
69: weather = new Weather(_zip, iconURL, temperature);
70: } catch (Exception e) {
71: throw new WebCacheException(_zip);
72: }
73:
74: return weather;
75: }
76:
77: public long getRefreshTime() {
78: return _REFRESH_TIME;
79: }
80:
81: private static final long _REFRESH_TIME = Time.MINUTE * 20;
82:
83: private String _zip;
84:
85: }
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