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LiteralValueSerializer.java
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LiteralValueSerializer.java
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/**
* Copyright (C) 2020 Czech Technical University in Prague
* <p>
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
* version.
* <p>
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jsonld.serialization;
import cz.cvut.kbss.jopa.model.MultilingualString;
import cz.cvut.kbss.jsonld.serialization.model.CollectionNode;
import cz.cvut.kbss.jsonld.serialization.model.JsonNode;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
class LiteralValueSerializer implements ValueSerializer {
private final MultilingualStringSerializer multilingualStringSerializer;
LiteralValueSerializer(MultilingualStringSerializer multilingualStringSerializer) {
this.multilingualStringSerializer = multilingualStringSerializer;
}
@Override
public List<JsonNode> serialize(String attId, Object value) {
final JsonNode result;
if (value instanceof Collection) {
final Collection<?> col = (Collection<?>) value;
final CollectionNode node = JsonNodeFactory.createCollectionNode(attId, col);
col.forEach(obj -> {
final JsonNode serObj = obj instanceof MultilingualString ? multilingualStringSerializer.serialize(
(MultilingualString) obj) : JsonNodeFactory.createLiteralNode(obj);
node.addItem(serObj);
});
result = node;
} else if (value instanceof MultilingualString) {
result = multilingualStringSerializer.serialize(attId, (MultilingualString) value);
} else {
result = JsonNodeFactory.createLiteralNode(attId, value);
}
return Collections.singletonList(result);
}
}