com.avanza.astrix.versioning.jackson2.Jackson2AstrixObjectSerializer Maven / Gradle / Ivy
/*
* Copyright 2014 Avanza Bank AB
*
* 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 com.avanza.astrix.versioning.jackson2;
import java.lang.reflect.Type;
import com.avanza.astrix.versioning.core.AstrixObjectSerializer;
import com.avanza.astrix.versioning.core.AstrixObjectSerializerConfigurer;
import com.avanza.astrix.versioning.core.ObjectSerializerDefinition;
import com.avanza.astrix.versioning.jackson2.VersionedJsonObjectMapper.VersionedObjectMapperBuilder;
class Jackson2AstrixObjectSerializer implements AstrixObjectSerializer {
private JsonObjectMapper objectMapper;
private int version;
public Jackson2AstrixObjectSerializer(ObjectSerializerDefinition serializerDefinition) {
Class serializerBuilder = serializerDefinition.getObjectSerializerConfigurerClass();
this.version = serializerDefinition.version();
try {
this.objectMapper = buildObjectMapper(Jackson2ObjectSerializerConfigurer.class.cast(serializerBuilder.getDeclaredConstructor().newInstance()));
} catch (Exception e) {
throw new RuntimeException("Failed to init JsonObjectMapper", e);
}
}
private JsonObjectMapper buildObjectMapper(Jackson2ObjectSerializerConfigurer serializerBuilder) {
VersionedObjectMapperBuilder objectMapperBuilder = new VersionedObjectMapperBuilder(serializerBuilder.apiMigrations());
serializerBuilder.configure(objectMapperBuilder);
return JsonObjectMapper.create(objectMapperBuilder.build());
}
@Override
public T deserialize(Object element, Type type, int fromVersion) {
if (fromVersion == NoVersioningSupport.NO_VERSIONING) {
@SuppressWarnings("unchecked")
T castedElement = (T) element;
return castedElement;
}
return objectMapper.deserialize((String) element, type, fromVersion);
}
@Override
public Object serialize(Object element, int version) {
if (version == NoVersioningSupport.NO_VERSIONING) {
return element;
}
return objectMapper.serialize(element, version);
}
@Override
public int version() {
return version;
}
}