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.network.util;
22:
23: import com.liferay.portal.kernel.util.StringMaker;
24: import com.liferay.portal.kernel.webcache.WebCacheException;
25: import com.liferay.portal.kernel.webcache.WebCacheItem;
26: import com.liferay.portlet.network.model.DNSLookup;
27: import com.liferay.util.Time;
28:
29: import java.net.InetAddress;
30:
31: /**
32: * <a href="DNSLookupWebCacheItem.java.html"><b><i>View Source</i></b></a>
33: *
34: * @author Brian Wing Shun Chan
35: *
36: */
37: public class DNSLookupWebCacheItem implements WebCacheItem {
38:
39: public DNSLookupWebCacheItem(String domain) {
40: _domain = domain;
41: }
42:
43: public Object convert(String key) throws WebCacheException {
44: DNSLookup dnsLookup = null;
45:
46: try {
47: String results = null;
48:
49: char[] array = _domain.trim().toCharArray();
50:
51: for (int i = 0; i < array.length; i++) {
52: if ((array[i] != '.') && !Character.isDigit(array[i])) {
53: InetAddress ia = InetAddress.getByName(_domain);
54:
55: results = ia.getHostAddress();
56:
57: break;
58: }
59: }
60:
61: if (results == null) {
62: StringMaker sm = new StringMaker();
63:
64: InetAddress[] ia = InetAddress.getAllByName(_domain);
65:
66: for (int i = 0; i < ia.length; i++) {
67: sm.append(ia[i].getHostName());
68:
69: if (i + 1 <= ia.length) {
70: sm.append(",");
71: }
72: }
73:
74: results = sm.toString();
75: }
76:
77: dnsLookup = new DNSLookup(_domain, results);
78: } catch (Exception e) {
79: throw new WebCacheException(_domain + " " + e.toString());
80: }
81:
82: return dnsLookup;
83: }
84:
85: public long getRefreshTime() {
86: return _REFRESH_TIME;
87: }
88:
89: private static final long _REFRESH_TIME = Time.DAY;
90:
91: private String _domain;
92:
93: }
|