01 /*
02 * Copyright 2015-2018 Andres Almiray
03 *
04 * Licensed under the Apache License, Version 2.0 (the "License");
05 * you may not use this file except in compliance with the License.
06 * You may obtain a copy of the License at
07 *
08 * http://www.apache.org/licenses/LICENSE-2.0
09 *
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 org.kordamp.ikonli.javafx;
17
18 import javafx.scene.text.Font;
19 import org.kordamp.ikonli.IkonHandler;
20
21 import java.util.LinkedHashSet;
22 import java.util.ServiceLoader;
23 import java.util.Set;
24
25 import static java.util.Objects.requireNonNull;
26
27 /**
28 * @author Andres Almiray
29 */
30 public class IkonResolver {
31 private static final IkonResolver INSTANCE;
32 private static final Set<IkonHandler> HANDLERS = new LinkedHashSet<>();
33
34 static {
35 INSTANCE = new IkonResolver();
36
37 ClassLoader classLoader = IkonResolver.class.getClassLoader();
38 ServiceLoader<IkonHandler> loader = ServiceLoader.load(IkonHandler.class, classLoader);
39 for (IkonHandler handler : loader) {
40 HANDLERS.add(handler);
41 handler.setFont(Font.loadFont(classLoader.getResource(handler.getFontResourcePath()).toExternalForm(), 16));
42 }
43 }
44
45 private IkonResolver() {
46
47 }
48
49 public static IkonResolver getInstance() {
50 return INSTANCE;
51 }
52
53 public IkonHandler resolveIkonHandler(String value) {
54 requireNonNull(value, "Ikon description must not be null");
55 for (IkonHandler handler : HANDLERS) {
56 if (handler.supports(value)) {
57 return handler;
58 }
59 }
60 throw new UnsupportedOperationException("Cannot resolve '" + value + "'");
61 }
62 }
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