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1
33
34 package com.icesoft.faces.context.effects;
35
36 import javax.faces.context.FacesContext;
37 import java.util.HashMap  ;
38 import java.util.Map ;
39 import java.util.logging.Logger ;
40 import java.util.logging.Level ;
41
42
46 public class DragCache {
47 private static Logger log = Logger.getLogger(DragCache.class.getName());
48
49 private static final String CACHE_CLEARED =
50 "ICESOFT_DRAG_CACHE_CLEARED_FLAG";
51 private static final String CACHE_KEY = "ICESOFT_DRAG_CACHE_RGDM_FLAG";
52 private static final String KEY_START = "ICEDRAGKEY[";
53 private static final String KEY_END = "]ICEDRAGKEY";
54
55
56
62 public static String put(Object value, FacesContext context) {
63 Map sessionMap = context.getExternalContext().getSessionMap();
64 if (sessionMap.get(CACHE_KEY) == null) {
66 sessionMap.put(CACHE_KEY, new HashMap ());
67 }
68 Map cache = (Map ) sessionMap.get(CACHE_KEY);
69 String key = KEY_START + cache.size() + KEY_END;
70 cache.put(key, value);
71
72 return key;
73 }
74
75
76
77
83 public static Object get(String key, FacesContext context) {
84 if (key == null) {
85 throw new NullPointerException ("Key can't be null");
86 }
87 key = key.trim();
88 Map sessionMap = context.getExternalContext().getSessionMap();
89 Map cache = (Map ) sessionMap.get(CACHE_KEY);
90 if (cache == null) {
91 throw new IllegalStateException (
92 "No Drag component placed a value in the cache.");
93 }
94 Object o = cache.get(key);
95 if (o == null) {
96 log.log(Level.SEVERE, "DragCache: No value found for key [" + key + "]");
97 }
98 return cache.get(key);
99 }
100
101 }
102 |
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