Method: ConverterLoader()

1: /*
2: * JOPA
3: * Copyright (C) 2024 Czech Technical University in Prague
4: *
5: * This library is free software; you can redistribute it and/or
6: * modify it under the terms of the GNU Lesser General Public
7: * License as published by the Free Software Foundation; either
8: * version 3.0 of the License, or (at your option) any later version.
9: *
10: * This library is distributed in the hope that it will be useful,
11: * but WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * Lesser General Public License for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public
16: * License along with this library.
17: */
18: package cz.cvut.kbss.jopa.loaders;
19:
20: import cz.cvut.kbss.jopa.model.annotations.Converter;
21: import cz.cvut.kbss.jopa.model.metamodel.ConverterResolver;
22: import cz.cvut.kbss.jopa.oom.converter.ConverterWrapper;
23:
24: import java.util.HashMap;
25: import java.util.Map;
26: import java.util.function.Consumer;
27:
28: /**
29: * Registers custom attribute converters.
30: *
31: * @see cz.cvut.kbss.jopa.model.AttributeConverter
32: */
33: class ConverterLoader implements Consumer<Class<?>> {
34:
35: private final Map<Class<?>, ConverterWrapper<?, ?>> converters = new HashMap<>();
36:
37: @Override
38: public void accept(Class<?> cls) {
39: final Converter converterAnn = cls.getAnnotation(Converter.class);
40: if (converterAnn == null || !converterAnn.autoApply()) {
41: return;
42: }
43: final ConverterWrapper<?, ?> converterWrapper = ConverterResolver.createCustomConverter(cls);
44: final Class<?> attributeType = ConverterResolver.resolveConverterAttributeType(cls);
45: converters.put(attributeType, converterWrapper);
46: }
47:
48: public Map<Class<?>, ConverterWrapper<?, ?>> getConverters() {
49: return converters;
50: }
51: }