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19 package org.fjank.jcache.collection;
20
21 import java.util.Collection  ;
22 import java.util.Iterator ;
23 import java.util.Map ;
24 import java.util.Set ;
25 import javax.util.jcache.Attributes;
26 import javax.util.jcache.CacheException;
27 import javax.util.jcache.CacheFullException;
28 import javax.util.jcache.CacheMap;
29 import javax.util.jcache.NotARetrievableObjectException;
30 import org.fjank.jcache.CacheAccessImpl2;
31 import org.fjank.jcache.CacheGroup;
32 import org.fjank.jcache.CacheObject;
33 import org.fjank.jcache.CacheRegion;
34
35
39 public class MapAdapter implements CacheMap {
40 private final CacheAccessImpl2 acc;
41 public MapAdapter(CacheAccessImpl2 originalAccess) {
42 this.acc=originalAccess;
43 }
44
51 public int size() {
52 return acc.getRegion().getObjectCount();
53 }
54
55 public boolean isEmpty() {
56 return acc.getRegion().getObjectCount()==0;
57 }
58
59
69 public boolean containsKey(Object key) {
70 if(key==null) throw new NullPointerException ("This Map does not permit null keys.");
71 return acc.isPresent(key);
72 }
73
74 public boolean containsValue(Object value) {
75 CacheRegion region = acc.getRegion();
76 return region.containsValue(value);
77 }
78
79
96 public Object get(Object key) {
97 if(key==null) throw new NullPointerException ("This Map does not permit null keys.");
98 Object object = acc.get(key);
99 if(object==null) {
100 CacheException ex = acc.getException(true);
101 if(ex instanceof NotARetrievableObjectException) {
102 throw new ClassCastException (ex.getMessage());
103 }
104 if(ex!=null) {
105 throw new IllegalStateException (ex.getMessage());
106 }
107 return null;
109 }
110 return object;
111 }
112
113
118 public Object put(Object key, Object value) {
119 Object prev=null;
120 if(acc.isPresent(key)) {
121 prev = acc.get(key);
122 }
123 boolean success = acc.put(key, value);
124 if(!success) {
125 CacheException ex = acc.getException(true);
126 if(ex instanceof CacheFullException) {
127 throw new IllegalArgumentException (ex.getMessage());
128 }
129 if(ex!=null) {
130 throw new IllegalStateException (ex.getMessage());
131 }
132 throw new IllegalStateException ("Unknown error.");
133 }
134 return prev;
135 }
136
141 public Object put(Object key, String group, Object value) {
142 Object prev = null;
143
144 if(!acc.isPresent("group")) {
145 acc.defineGroup(group);
146 }
147 if(acc.isPresent(key)) {
148 prev=acc.get(key, group, null);
149 }
150 acc.put(key, group, value);
151
152 return prev;
153 }
154
161 public Object remove(Object key) {
162 if (key==null) {
163 throw new NullPointerException ("This Map does not permit null keys.");
164 }
165 CacheObject obj = (CacheObject) acc.getRegion().get(key);
166 if(obj==null) {
167 return null;
168 }
169 obj.invalidate();
170 return obj.get();
171 }
172 public Object remove(Object key, String group) {
173 if (key==null || group==null) {
174 throw new NullPointerException ("This Map does not permit null keys.");
175 }
176 CacheRegion region = acc.getRegion();
177 CacheGroup group2 = region.getGroup(group);
178 if (group2 == null) {
179 return null;
180 }
181 CacheObject object = (CacheObject) group2.get(key);
182 if(object==null) {
183 return null;
184 }
185 object.invalidate();
186 return object.get();
187 }
188
194 public void putAll(Map t) {
195 for (Iterator iter = t.keySet().iterator(); iter.hasNext();) {
197 Object key = iter.next();
198 acc.put(key, t.get(key));
199 }
200 }
201
202 public void clear() {
203 acc.invalidate();
204 }
205
206 public Set keySet() {
207 return acc.getRegion().keySet();
208 }
209
210 public Collection values() {
211 return acc.getRegion().values();
212 }
213
214 public Set entrySet() {
215 return acc.getRegion().entrySet();
216 }
217
220 public Attributes getAttributes() {
221 return acc.getAttributes();
222 }
223
226 public Attributes getAttributes(Object name) throws CacheException {
227 return acc.getAttributes(name);
228 }
229
232 public Object get(Object name, Object arguments) {
233 return acc.get(name, arguments);
234 }
235
238 public void defineObject(Object name, Attributes attributes) {
239 acc.defineObject(name, attributes);
240 }
241 }
242 |
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