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package eu.equalparts.cardbase.json;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import eu.equalparts.cardbase.card.Card;
import eu.equalparts.cardbase.card.FullCardSet;
/**
* This class simply holds an {@code ObjectMapper} to be used whenever JSON must be parsed.
* In the future it may be removed in favour of individual mappers for each function.
*
* @author Eduardo Pedroni
*/
public final class JSON {
/**
* The Jackson {@code ObjectMapper} which parses fetched JSON files.
*/
public static final ObjectMapper mapper = createMapper();
/**
* Private constructor, this class is not to be instantiated.
*/
private JSON() {}
/**
* Instantiate and configure Jackson mapper statically.
*
* @return the {@code ObjectMapper}, ready to use.
*/
private static ObjectMapper createMapper() {
ObjectMapper objectMapper = new ObjectMapper();
// classes don't necessarily use all json fields
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
// disable auto detection
objectMapper.disable(MapperFeature.AUTO_DETECT_CREATORS,
MapperFeature.AUTO_DETECT_FIELDS,
MapperFeature.AUTO_DETECT_GETTERS,
MapperFeature.AUTO_DETECT_IS_GETTERS);
SimpleModule sm = new SimpleModule();
sm.addDeserializer(Card.class, new CardDeserializer());
sm.addSerializer(Card.class, new CardSerializer());
sm.addDeserializer(FullCardSet.class, new FullCardSetDeserializer());
objectMapper.registerModule(sm);
return objectMapper;
}
}
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