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MultilingualStringSerializer.java
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MultilingualStringSerializer.java
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package cz.cvut.kbss.jsonld.serialization.serializer.context;
import cz.cvut.kbss.jopa.model.MultilingualString;
import cz.cvut.kbss.jsonld.JsonLd;
import cz.cvut.kbss.jsonld.serialization.JsonNodeFactory;
import cz.cvut.kbss.jsonld.serialization.model.JsonNode;
import cz.cvut.kbss.jsonld.serialization.model.ObjectNode;
import cz.cvut.kbss.jsonld.serialization.serializer.ValueSerializer;
import cz.cvut.kbss.jsonld.serialization.traversal.SerializationContext;
/**
* This is used to serialize {@link MultilingualString} values.
*/
public class MultilingualStringSerializer implements ValueSerializer<MultilingualString> {
@Override
public JsonNode serialize(MultilingualString value, SerializationContext<MultilingualString> ctx) {
if (ctx.getTerm() != null) {
registerTermMapping(ctx);
}
final ObjectNode node = ctx.getField() != null ? JsonNodeFactory.createObjectNode(ctx.getFieldName()) : JsonNodeFactory.createObjectNode();
value.getValue().forEach((lang, text) -> node.addItem(JsonNodeFactory.createLiteralNode(lang, text)));
return node;
}
static void registerTermMapping(SerializationContext<MultilingualString> ctx) {
final ObjectNode mapping = JsonNodeFactory.createObjectNode();
mapping.addItem(JsonNodeFactory.createLiteralNode(JsonLd.ID, ctx.getTerm()));
mapping.addItem(JsonNodeFactory.createLiteralNode(JsonLd.TYPE, JsonLd.LANGUAGE));
ctx.getJsonLdContext().registerTermMapping(ctx.getFieldName(), mapping);
}
}