Method: lambda$serialize$0(SerializationContext, CollectionNode, Object)

1: /**
2: * Copyright (C) 2022 Czech Technical University in Prague
3: * <p>
4: * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
5: * License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
6: * version.
7: * <p>
8: * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
9: * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
10: * details. You should have received a copy of the GNU General Public License along with this program. If not, see
11: * <http://www.gnu.org/licenses/>.
12: */
13: package cz.cvut.kbss.jsonld.serialization.serializer.compact;
14:
15: import cz.cvut.kbss.jopa.model.MultilingualString;
16: import cz.cvut.kbss.jsonld.JsonLd;
17: import cz.cvut.kbss.jsonld.serialization.JsonNodeFactory;
18: import cz.cvut.kbss.jsonld.serialization.model.CollectionNode;
19: import cz.cvut.kbss.jsonld.serialization.model.JsonNode;
20: import cz.cvut.kbss.jsonld.serialization.model.ObjectNode;
21: import cz.cvut.kbss.jsonld.serialization.serializer.SerializerUtils;
22: import cz.cvut.kbss.jsonld.serialization.serializer.ValueSerializer;
23: import cz.cvut.kbss.jsonld.serialization.traversal.SerializationContext;
24:
25: import java.util.Collection;
26:
27: public class DefaultValueSerializer implements ValueSerializer {
28:
29: private final MultilingualStringSerializer multilingualStringSerializer;
30:
31: public DefaultValueSerializer(MultilingualStringSerializer multilingualStringSerializer) {
32: this.multilingualStringSerializer = multilingualStringSerializer;
33: }
34:
35: @Override
36: public JsonNode serialize(Object value, SerializationContext ctx) {
37: if (value instanceof Collection) {
38: final Collection<?> col = (Collection<?>) value;
39: final CollectionNode<?> node = JsonNodeFactory.createCollectionNode(ctx.getTerm(), col);
40: col.forEach(item -> {
41:• if (SerializerUtils.isAnnotationReference(item, ctx)) {
42: node.addItem(serializeReference(null, item));
43:• } else if (item instanceof MultilingualString) {
44: node.addItem(multilingualStringSerializer.serialize((MultilingualString) item,
45: new SerializationContext<>(
46: (MultilingualString) item,
47: ctx.getJsonLdContext())));
48: } else {
49: node.addItem(JsonNodeFactory.createLiteralNode(item));
50: }
51: });
52: return node;
53: } else {
54: if (SerializerUtils.isAnnotationReference(value, ctx)) {
55: return serializeReference(ctx.getTerm(), value);
56: } else if (value instanceof MultilingualString) {
57: return multilingualStringSerializer.serialize((MultilingualString) value, ctx);
58: }
59: return JsonNodeFactory.createLiteralNode(ctx.getTerm(), value);
60: }
61: }
62:
63: private static JsonNode serializeReference(String attId, Object value) {
64: final ObjectNode node =
65: attId != null ? JsonNodeFactory.createObjectNode(attId) : JsonNodeFactory.createObjectNode();
66: node.addItem(JsonNodeFactory.createObjectIdNode(JsonLd.ID, value));
67: return node;
68: }
69: }