1 /*
2 * *************************************************************************************************************************************************************
3 *
4 * SteelBlue: DCI User Interfaces
5 * http://tidalwave.it/projects/steelblue
6 *
7 * Copyright (C) 2015 - 2025 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/steelblue-src
22 * git clone https://github.com/tidalwave-it/steelblue-src
23 *
24 * *************************************************************************************************************************************************************
25 */
26 package it.tidalwave.ui.javafx.impl.common;
27
28 import jakarta.annotation.Nonnull;
29 import java.util.ArrayList;
30 import java.util.Collection;
31 import java.util.HashMap;
32 import java.util.List;
33 import java.util.Map;
34 import java.util.Optional;
35 import it.tidalwave.util.As;
36 import it.tidalwave.ui.core.role.UserAction;
37 import lombok.Getter;
38 import lombok.ToString;
39 import static java.util.Collections.*;
40 import static it.tidalwave.ui.core.role.UserActionProvider._UserActionProvider_;
41
42 /***************************************************************************************************************************************************************
43 *
44 * @author Fabrizio Giudici
45 *
46 **************************************************************************************************************************************************************/
47 @ToString
48 public class RoleBag
49 {
50 private final Map<Class<?>, List<Object>> map = new HashMap<>();
51
52 /** The default user action, which is the first action of the first {@link it.tidalwave.ui.core.role.UserActionProvider}. */
53 @Getter
54 private final Optional<UserAction> defaultUserAction;
55
56 public RoleBag()
57 {
58 defaultUserAction = Optional.empty();
59 }
60
61 public RoleBag (@Nonnull final As source, @Nonnull final Collection<Class<?>> roleTypes)
62 {
63 // TODO: assert not FX thread
64 roleTypes.forEach(roleType -> copyRoles(source, roleType));
65 // computed NOW because we are in the background thread
66 // TODO: perhaps it could be associated to a dummy key, instead of being returned by a getter?
67 defaultUserAction = getMany(_UserActionProvider_).stream().flatMap(a -> a.getOptionalDefaultAction().stream()).findFirst();
68 }
69
70 public <ROLE_TYPE> void put (@Nonnull final Class<ROLE_TYPE> roleClass, @Nonnull final ROLE_TYPE role)
71 {
72 putMany(roleClass, singletonList(role));
73 }
74
75 public <ROLE_TYPE> void putMany (@Nonnull final Class<ROLE_TYPE> roleClass,
76 @Nonnull final Collection<? extends ROLE_TYPE> roles)
77 {
78 map.put(roleClass, new ArrayList<>(roles));
79 }
80
81 @Nonnull
82 public <ROLE_TYPE> Optional<ROLE_TYPE> get (@Nonnull final Class<ROLE_TYPE> roleClass)
83 {
84 return getMany(roleClass).stream().findFirst();
85 }
86
87 @Nonnull
88 public <ROLE_TYPE> List<ROLE_TYPE> getMany (@Nonnull final Class<ROLE_TYPE> roleClass)
89 {
90 return unmodifiableList((List<ROLE_TYPE>)map.getOrDefault(roleClass, emptyList()));
91 }
92
93
94 private <ROLE_TYPE> void copyRoles (@Nonnull final As item, @Nonnull final Class<ROLE_TYPE> roleClass)
95 {
96 putMany(roleClass, item.asMany(roleClass));
97 }
98 }