1 /*
2 * Copyright 2012-2013 smartics, Kronseder & Reiner GmbH
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package de.smartics.properties.core.services;
17
18 import java.io.IOException;
19 import java.io.Serializable;
20
21 import org.apache.commons.lang.StringUtils;
22
23 import de.smartics.properties.api.core.config.BootPropertiesProvider;
24
25 /**
26 * Base implementation for lookup loaders of extension configurations from JNDI.
27 */
28 public abstract class AbstractJndiLookupLoader implements Serializable
29 {
30 // ********************************* Fields *********************************
31
32 // --- constants ------------------------------------------------------------
33
34 /**
35 * The class version identifier.
36 */
37 private static final long serialVersionUID = 1L;
38
39 // --- members --------------------------------------------------------------
40
41 // ****************************** Initializer *******************************
42
43 // ****************************** Constructors ******************************
44
45 /**
46 * Default constructor.
47 */
48 protected AbstractJndiLookupLoader()
49 {
50 }
51
52 // ****************************** Inner Classes *****************************
53
54 // ********************************* Methods ********************************
55
56 // --- init -----------------------------------------------------------------
57
58 // --- get&set --------------------------------------------------------------
59
60 // --- business -------------------------------------------------------------
61
62 /**
63 * Determines the name of the extension configuration to use.
64 *
65 * @return the name to use. Must not be <code>null</code>-
66 * @throws IOException on any problem loading the configuration name.
67 */
68 protected static final String calcConfigurationName() throws IOException
69 {
70 String configurationName =
71 ThreadLocalAdminRuntime.getInstance().getConfigurationName();
72 if (StringUtils.isBlank(configurationName))
73 {
74 final BootPropertiesProvider loader =
75 BootPropertiesProvider.createFromClasspath();
76 configurationName = loader.getConfigurationName();
77 }
78 return configurationName;
79 }
80
81 // --- object basics --------------------------------------------------------
82
83 }