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10 package org.mmbase.security.implementation.context;
11
12 import java.util.HashMap  ;
13 import java.util.Map ;
14 import java.util.Set ;
15
16 import org.mmbase.util.logging.Logger;
17 import org.mmbase.util.logging.Logging;
18
19
26 public class ContextCache {
27 private static Logger log = Logging.getLoggerInstance(ContextCache.class.getName());
28
29 private org.mmbase.cache.Cache globalRightCache = new org.mmbase.cache.Cache(50) {
30 public String getName() { return "ContextRight"; }
31 public String getDescription() { return "Context Security Implementation Rights Cache"; }
32 };
33
34 private long rightTries = 0;
35 private long rightSucces = 0;
36 private long rightSize = 0;
37
38 public void rightAdd(String operation, String context, String user, boolean value) {
39 Map operationCache = (Map ) globalRightCache.get(operation);
40 if(operationCache == null) {
42 operationCache = new HashMap ();
43 globalRightCache.put(operation, operationCache);
44 }
45 Map contextCache = (Map ) operationCache.get(context);
46 if(contextCache == null) {
48 contextCache = new HashMap ();
49 operationCache.put(context, contextCache);
50 }
51 if(contextCache.containsKey(user)) {
52 log.warn("rights context cache already contained this entry");
53 }
54 contextCache.put(user, Boolean.valueOf(value));
55 log.debug("added to cache the operation: " + operation + " for context: " + context + " with user: " + user + " with value: " + value );
56 rightSize++;
57 }
58
59 public Boolean rightGet(String operation, String context, String user) {
60 HashMap operationCache = (HashMap )globalRightCache.get(operation);
61 rightTries ++;
62 if(operationCache == null) {
63 if (log.isDebugEnabled()) {
64 log.debug("operation not found in cache (" + info(rightTries, rightSucces, rightSize) + ")");
65 }
66 return null;
67 }
68
69 HashMap contextCache = (HashMap )operationCache.get(context);
70
71 if(contextCache == null) {
72 if (log.isDebugEnabled()) {
73 log.debug("rights context not found in cache (" + info(rightTries, rightSucces, rightSize)+")");
74 }
75 return null;
76 }
77
78 if(contextCache.containsKey(user)) {
79 rightSucces ++;
80 if (log.isDebugEnabled()) {
81 log.debug("user found in cache ("+info(rightTries, rightSucces, rightSize)+")");
82 log.debug("the operation: " + operation + " for context: " + context + " with user: " + user + " returned: " + contextCache.get(user) );
83 }
84 }
85 return (Boolean )contextCache.get(user);
86 }
87
88 private org.mmbase.cache.Cache globalContextCache = new org.mmbase.cache.Cache(50) {
89 public String getName() { return "ContextContext"; }
90 public String getDescription() { return "Context Security Implementation Context Cache"; }
91 };
92
93 private long contextTries = 0;
94 private long contextSucces = 0;
95 private long contextSize = 0;
96
97 public void contextAdd(String context, Set possible) {
98 if(globalContextCache.containsKey(context)) {
100 log.warn("context cache already contained this entry");
101 }
102 globalContextCache.put(context, possible);
103 log.debug("added possible list to context with name : " + context);
104 contextSize++;
105 }
106
107 public Set contextGet(String context) {
108 contextTries++;
109
110 if(globalContextCache.containsKey(context)) {
111 contextSucces++;
112 log.debug("context found in cache ("+info(contextTries, contextSucces, contextSize)+")");
113 }
114 return (Set )globalContextCache.get(context);
115 }
116
117 private String info(long tries, long succes, long size) {
118 return "hit of #"+succes+ " access of #"+tries+" ("+ succes/(tries/100.0)+" %) with a number of entries #"+size;
119 }
120
121 ContextCache() {
122 globalContextCache.putCache();
123 globalRightCache.putCache();
124 }
125 }
126 |
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