forked from D-Net/dnet-hadoop
44 lines
1.3 KiB
Java
44 lines
1.3 KiB
Java
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package eu.dnetlib.dhp.selectioncriteria;
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import java.lang.reflect.Type;
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import com.google.gson.*;
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public class InterfaceAdapter implements JsonSerializer, JsonDeserializer {
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private static final String CLASSNAME = "CLASSNAME";
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private static final String DATA = "DATA";
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public Object deserialize(
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JsonElement jsonElement,
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Type type,
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JsonDeserializationContext jsonDeserializationContext)
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throws JsonParseException {
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JsonObject jsonObject = jsonElement.getAsJsonObject();
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JsonPrimitive prim = (JsonPrimitive) jsonObject.get(CLASSNAME);
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String className = prim.getAsString();
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Class klass = getObjectClass(className);
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return jsonDeserializationContext.deserialize(jsonObject.get(DATA), klass);
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}
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public JsonElement serialize(
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Object jsonElement, Type type, JsonSerializationContext jsonSerializationContext) {
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JsonObject jsonObject = new JsonObject();
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jsonObject.addProperty(CLASSNAME, jsonElement.getClass().getName());
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jsonObject.add(DATA, jsonSerializationContext.serialize(jsonElement));
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return jsonObject;
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}
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/** **** Helper method to get the className of the object to be deserialized **** */
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public Class getObjectClass(String className) {
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try {
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return Class.forName(className);
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} catch (ClassNotFoundException e) {
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// e.printStackTrace();
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throw new JsonParseException(e.getMessage());
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}
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}
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}
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