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30 day Evaluation License registered to hlship@comcast.net Your 30 day evaluation period has expired. Please visit http://www.cenqua.com to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ObjectPoolImpl.java | 100% | 90% | 66.7% | 88.2% |
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1 | // Copyright 2004, 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // Unless required by applicable law or agreed to in writing, software | |
10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | // See the License for the specific language governing permissions and | |
13 | // limitations under the License. | |
14 | ||
15 | package org.apache.tapestry.services.impl; | |
16 | ||
17 | import java.util.HashMap; | |
18 | import java.util.LinkedList; | |
19 | import java.util.List; | |
20 | import java.util.Map; | |
21 | ||
22 | import org.apache.tapestry.event.ResetEventListener; | |
23 | import org.apache.tapestry.services.ObjectPool; | |
24 | ||
25 | /** | |
26 | * Implementation of the {@link org.apache.tapestry.services.ObjectPool} interface. | |
27 | * | |
28 | * <p> | |
29 | * This ia a minimal implementation, one that has no concept of automatically removing | |
30 | * unused pooled objects. Eventually, it will also register for notifications about | |
31 | * general cache cleaning. | |
32 | * | |
33 | * @author Howard Lewis Ship | |
34 | * @since 4.0 | |
35 | */ | |
36 | public class ObjectPoolImpl implements ObjectPool, ResetEventListener | |
37 | { | |
38 | /** | |
39 | * Pool of Lists (of pooled objects), keyed on arbitrary key. | |
40 | */ | |
41 | private Map _pool = new HashMap(); | |
42 | ||
43 | 336 | public synchronized Object get(Object key) |
44 | { | |
45 | 336 | List pooled = (List) _pool.get(key); |
46 | ||
47 | 336 | if (pooled == null || pooled.isEmpty()) |
48 | 184 | return null; |
49 | ||
50 | 152 | return pooled.remove(0); |
51 | } | |
52 | ||
53 | 323 | public synchronized void store(Object key, Object value) |
54 | { | |
55 | 323 | List pooled = (List) _pool.get(key); |
56 | ||
57 | 323 | if (pooled == null) |
58 | { | |
59 | 166 | pooled = new LinkedList(); |
60 | 166 | _pool.put(key, pooled); |
61 | } | |
62 | ||
63 | 323 | pooled.add(value); |
64 | } | |
65 | ||
66 | 0 | public synchronized void resetEventDidOccur() |
67 | { | |
68 | 0 | _pool.clear(); |
69 | } | |
70 | ||
71 | } |
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