it.newfammulfin.api.util.converters.KeyConverter.java Source code

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Here is the source code for it.newfammulfin.api.util.converters.KeyConverter.java

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/*
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package it.newfammulfin.api.util.converters;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.googlecode.objectify.Key;
import java.lang.reflect.Type;

/**
 *
 * @author eric
 */
public class KeyConverter implements JsonSerializer<Key<?>>, JsonDeserializer<Key<?>> {

    @Override
    public JsonElement serialize(Key<?> key, Type type, JsonSerializationContext jsc) {
        JsonObject jsonObject = new JsonObject();
        jsonObject.addProperty("raw", key.toWebSafeString());
        if (key.getName() == null) {
            jsonObject.addProperty("id", key.getId());
        } else {
            jsonObject.addProperty("id", key.getName());
        }
        return jsonObject;
    }

    @Override
    public Key<?> deserialize(JsonElement jsonElement, Type type, JsonDeserializationContext jdc)
            throws JsonParseException {
        if (!(jsonElement instanceof JsonObject)) {
            throw new JsonParseException("Json object expected");
        }
        if (((JsonObject) jsonElement).get("raw") == null) {
            throw new JsonParseException("Json object expected");
        }
        String rawString = ((JsonObject) jsonElement).get("raw").getAsString();
        return Key.create(rawString);
    }

}