/*
* Copyright (c) 2010-2016. Axon Framework
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.axonframework.serialization.json;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import org.axonframework.messaging.MetaData;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
* JsonDeserializer implementation that deserializes MetaData instances.
*
* @author Allard Buijze
* @since 2.4.2
*/
public class MetaDataDeserializer extends JsonDeserializer<MetaData> {
@Override
public Object deserializeWithType(JsonParser jsonParser, DeserializationContext ctxt, TypeDeserializer typeDeserializer) throws IOException {
return typeDeserializer.deserializeTypedFromObject(jsonParser, ctxt);
}
@SuppressWarnings("unchecked")
@Override
public MetaData deserialize(JsonParser jp, DeserializationContext ctxt)
throws IOException {
JsonDeserializer<Object> deserializer = ctxt.findRootValueDeserializer(
ctxt.getTypeFactory().constructMapType(Map.class, String.class, Object.class));
return MetaData.from((Map) deserializer.deserialize(jp, ctxt, new HashMap<>()));
}
}