1
22
23 package com.liferay.portal.servlet;
24
25 import com.liferay.portal.kernel.cache.MultiVMPoolUtil;
26 import com.liferay.portal.kernel.cache.PortalCache;
27 import com.liferay.portal.kernel.servlet.ImageServletToken;
28 import com.liferay.portal.kernel.util.StringMaker;
29 import com.liferay.portal.kernel.util.StringPool;
30 import com.liferay.portal.servlet.filters.layoutcache.LayoutCacheUtil;
31 import com.liferay.portlet.journalcontent.util.JournalContentUtil;
32
33
39 public class ImageServletTokenImpl implements ImageServletToken {
40
41 public static final String CACHE_NAME = ImageServletToken.class.getName();
42
43 public String getToken(long imageId) {
44 String key = _encodeKey(imageId);
45
46 String token = (String)MultiVMPoolUtil.get(_cache, key);
47
48 if (token == null) {
49 token = _createToken(imageId);
50
51 MultiVMPoolUtil.put(_cache, key, token);
52 }
53
54 return token;
55 }
56
57 public void resetToken(long imageId) {
58 String key = _encodeKey(imageId);
59
60 _cache.remove(key);
61
62
64 JournalContentUtil.clearCache();
65
66
68 LayoutCacheUtil.clearCache();
69 }
70
71 private String _createToken(long imageId) {
72 return String.valueOf(System.currentTimeMillis());
73 }
74
75 private String _encodeKey(long imageId) {
76 StringMaker sm = new StringMaker();
77
78 sm.append(CACHE_NAME);
79 sm.append(StringPool.POUND);
80 sm.append(imageId);
81
82 return sm.toString();
83 }
84
85 private static PortalCache _cache = MultiVMPoolUtil.getCache(CACHE_NAME);
86
87 }