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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ServiceSerializationHelper.java | 75% | 100% | 100% | 93.3% |
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1 | // Copyright 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.hivemind.internal.ser; | |
16 | ||
17 | import java.lang.ref.WeakReference; | |
18 | ||
19 | import org.apache.commons.logging.Log; | |
20 | import org.apache.commons.logging.LogFactory; | |
21 | import org.apache.hivemind.ApplicationRuntimeException; | |
22 | ||
23 | /** | |
24 | * Class used to hold a <em>global</em> instance of | |
25 | * {@link org.apache.hivemind.internal.ser.ServiceSerializationSupport}, so that | |
26 | * {@link org.apache.hivemind.internal.ser.ServiceToken}s may locate them. | |
27 | * | |
28 | * @author Howard M. Lewis Ship | |
29 | * @since 1.1 | |
30 | */ | |
31 | public class ServiceSerializationHelper | |
32 | { | |
33 | private static final Log LOG = LogFactory.getLog(ServiceSerializationHelper.class); | |
34 | ||
35 | private static final ThreadLocal _threadLocal = new ThreadLocal(); | |
36 | ||
37 | /** | |
38 | * Returns the previously stored SSS. | |
39 | * | |
40 | * @throws ApplicationRuntimeException | |
41 | * if no SSS has been stored. | |
42 | */ | |
43 | 4 | public static ServiceSerializationSupport getServiceSerializationSupport() |
44 | { | |
45 | 4 | ServiceSerializationSupport result = null; |
46 | ||
47 | 4 | WeakReference reference = (WeakReference) _threadLocal.get(); |
48 | 4 | if (reference != null) |
49 | 4 | result = (ServiceSerializationSupport) reference.get(); |
50 | ||
51 | 4 | if (result == null) |
52 | 1 | throw new ApplicationRuntimeException(SerMessages.noSupportSet()); |
53 | ||
54 | 3 | return result; |
55 | } | |
56 | ||
57 | /** | |
58 | * Stores the SSS instance for later access; if an existing SSS is already stored, then an error | |
59 | * is logged (should be just one SSS per class loader). | |
60 | */ | |
61 | ||
62 | 763 | public static void setServiceSerializationSupport( |
63 | ServiceSerializationSupport serviceSerializationSupport) | |
64 | { | |
65 | 763 | WeakReference reference = new WeakReference(serviceSerializationSupport); |
66 | ||
67 | 763 | _threadLocal.set(reference); |
68 | } | |
69 | } |
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