Method: run(Executor, Supplier, Consumer)

1: /*
2: * *************************************************************************************************************************************************************
3: *
4: * SteelBlue: DCI User Interfaces
5: * http://tidalwave.it/projects/steelblue
6: *
7: * Copyright (C) 2015 - 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/steelblue-src
22: * git clone https://github.com/tidalwave-it/steelblue-src
23: *
24: * *************************************************************************************************************************************************************
25: */
26: package it.tidalwave.role.ui.javafx.impl.common;
27:
28: import javax.annotation.Nonnegative;
29: import javax.annotation.Nonnull;
30: import java.util.ArrayList;
31: import java.util.List;
32: import java.util.concurrent.Executor;
33: import java.util.concurrent.RejectedExecutionException;
34: import java.util.function.Consumer;
35: import java.util.function.Supplier;
36: import javafx.collections.ObservableList;
37: import javafx.application.Platform;
38: import it.tidalwave.util.annotation.VisibleForTesting;
39: import it.tidalwave.role.ui.PresentationModel;
40: import it.tidalwave.role.ui.javafx.impl.util.Logging;
41: import lombok.experimental.UtilityClass;
42: import lombok.extern.slf4j.Slf4j;
43: import static java.util.Collections.emptyList;
44: import static javafx.collections.FXCollections.*;
45: import static it.tidalwave.role.SimpleComposite._SimpleComposite_;
46: import static it.tidalwave.role.ui.javafx.impl.util.Logging.INDENT;
47:
48: /***************************************************************************************************************************************************************
49: *
50: * @author Fabrizio Giudici
51: *
52: **************************************************************************************************************************************************************/
53: @UtilityClass @Slf4j
54: public class JavaFXWorker
55: {
56: public static <T> void run (@Nonnull final Executor executor,
57: @Nonnull Supplier<T> backgroundSupplier,
58: @Nonnull Consumer<T> javaFxFinalizer)
59: {
60: try
61: {
62: executor.execute(() ->
63: {
64: final var value = backgroundSupplier.get();
65: Platform.runLater(() -> javaFxFinalizer.accept(value));
66: });
67: }
68: catch (RejectedExecutionException e)
69: {
70: log.error("Background task failed: {}", e.getMessage());
71: }
72: }
73:
74: @Nonnull
75: public static ObservableList<PresentationModel> childrenPm (@Nonnull final PresentationModel pm)
76: {
77: return childrenPm(pm, 0);
78: }
79:
80: @Nonnull
81: public static ObservableList<PresentationModel> childrenPm (@Nonnull final PresentationModel pm,
82: @Nonnegative int depth)
83: {
84: final var indent = INDENT.substring(0, depth * 8);
85: final var composite = pm.maybeAs(_SimpleComposite_);
86: composite.ifPresent(c -> Logging.logObject(indent, composite));
87: final List<PresentationModel> items = composite.map(c -> c.findChildren().results()).orElse(emptyList());
88: final var badItems = extractBadItems(items);
89:
90: if (!badItems.isEmpty()) // defensive
91: {
92: log.error("Child object are not PresentationModel: (only 10 are shown)");
93: log.error("This happens when the PresentationModel doesn't have its own Composite role that decorates the" +
94: " owner entity Composite - see SimpleCompositePresentable for instance.");
95: badItems.stream().limit(10).forEach(item -> log.error(" {}", item));
96: return emptyObservableList();
97: }
98:
99: Logging.logObjects(indent, items);
100: return observableArrayList(items);
101: }
102:
103: @Nonnull
104: @VisibleForTesting static List<Object> extractBadItems (@Nonnull final List<PresentationModel> items)
105: {
106: final List<Object> badItems = new ArrayList<>(items);
107: badItems.removeIf(item -> item instanceof PresentationModel);
108: return badItems;
109: // return items.stream()
110: // .map(item -> (Object)item)
111: // .filter(item -> !(item instanceof PresentationModel))
112: // .peek(item -> log.error(">>>> {}", item))
113: // .collect(toList());
114: }
115: }
116: