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.role.impl;
27
28 import javax.annotation.Nonnull;
29 import java.util.ArrayList;
30 import java.util.Collection;
31 import java.util.List;
32 import it.tidalwave.util.As;
33 import it.tidalwave.util.Task;
34 import it.tidalwave.role.spi.OwnerRoleFactory;
35 import it.tidalwave.role.spi.SystemRoleFactory;
36 import lombok.extern.slf4j.Slf4j;
37 import static it.tidalwave.util.ShortNames.*;
38
39 /***************************************************************************************************************************************************************
40 *
41 * An implementation for {@link As} based on Spring.
42 *
43 * @author Fabrizio Giudici
44 *
45 **************************************************************************************************************************************************************/
46 @Slf4j
47 class DefaultOwnerRoleFactory implements OwnerRoleFactory
48 {
49 @Nonnull
50 private final Object owner;
51
52 private final ContextSnapshot contextSnapshot;
53
54 /***********************************************************************************************************************************************************
55 * Constructor for use with composition.
56 *
57 * @param owner the owner object
58 **********************************************************************************************************************************************************/
59 public DefaultOwnerRoleFactory (@Nonnull final Object owner)
60 {
61 this.owner = owner;
62 contextSnapshot = new ContextSnapshot(owner);
63 }
64
65 /***********************************************************************************************************************************************************
66 * {@inheritDoc}
67 **********************************************************************************************************************************************************/
68 @Override @Nonnull
69 public <T> Collection<T> findRoles (@Nonnull final Class<? extends T> roleType)
70 {
71 log.trace("as({}) for {}", shortName(roleType), shortId(owner));
72 log.trace(">>>> contexts: {}", contextSnapshot);
73
74 final var roles =
75 new ArrayList<T>(contextSnapshot.runWithContexts(new Task<List<? extends T>, RuntimeException>()
76 {
77 @Override
78 @Nonnull
79 public List<? extends T> run ()
80 {
81 return SystemRoleFactory.getInstance().findRoles(owner, roleType);
82 }
83 }));
84
85 if (roleType.isAssignableFrom(owner.getClass()))
86 {
87 roles.add(roleType.cast(owner));
88 }
89
90 log.trace(">>>> as() returning {}", shortIds(roles));
91
92 return roles;
93 }
94 }