1 /*
2 * *************************************************************************************************************************************************************
3 *
4 * TheseFoolishThings: Miscellaneous utilities
5 * http://tidalwave.it/projects/thesefoolishthings
6 *
7 * Copyright (C) 2009 - 2024 by Tidalwave s.a.s. (http://tidalwave.it)
8 *
9 * *************************************************************************************************************************************************************
10 *
11 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
17 * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
18 *
19 * *************************************************************************************************************************************************************
20 *
21 * git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
22 * git clone https://github.com/tidalwave-it/thesefoolishthings-src
23 *
24 * *************************************************************************************************************************************************************
25 */
26 package it.tidalwave.actor.impl;
27
28 import javax.annotation.Nonnull;
29 import javax.inject.Provider;
30
31 /***************************************************************************************************************************************************************
32 *
33 * A trimmed down replacement for OpenBlueSky Locator, in order to avoid depending on OpenBlueSky.
34 *
35 * @author Fabrizio Giudici
36 *
37 **************************************************************************************************************************************************************/
38 public class Locator
39 {
40 public static class NotFoundException extends RuntimeException
41 {
42 NotFoundException (@Nonnull final Class<?> serviceClass)
43 {
44 super("Not found: " + serviceClass);
45 }
46
47 NotFoundException (@Nonnull final String name)
48 {
49 super("Not found: " + name);
50 }
51 }
52
53 @Nonnull
54 public static <T> Provider<T> createProviderFor (@Nonnull final Class<? extends T> serviceClass)
55 {
56 return new Provider<>()
57 {
58 @Override @Nonnull
59 public T get ()
60 {
61 return find(serviceClass);
62 }
63 };
64 }
65
66 /***********************************************************************************************************************************************************
67 **********************************************************************************************************************************************************/
68 @Nonnull
69 private static <T> T find (@Nonnull final Class<T> serviceClass)
70 {
71 // final T service = Lookup.getDefault().lookup(serviceClass); FIXME
72 //
73 // if (service == null)
74 // {
75 throw new NotFoundException(serviceClass);
76 // }
77 //
78 // return service;
79 }
80 }