org.springframework.http.converter.json.SpringHandlerInstantiator Maven / Gradle / Ivy
/*
* Copyright 2002-2016 the original author or authors.
*
* 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.springframework.http.converter.json;
import com.fasterxml.jackson.annotation.ObjectIdGenerator;
import com.fasterxml.jackson.annotation.ObjectIdResolver;
import com.fasterxml.jackson.databind.DeserializationConfig;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.KeyDeserializer;
import com.fasterxml.jackson.databind.PropertyNamingStrategy;
import com.fasterxml.jackson.databind.SerializationConfig;
import com.fasterxml.jackson.databind.cfg.HandlerInstantiator;
import com.fasterxml.jackson.databind.cfg.MapperConfig;
import com.fasterxml.jackson.databind.deser.ValueInstantiator;
import com.fasterxml.jackson.databind.introspect.Annotated;
import com.fasterxml.jackson.databind.jsontype.TypeIdResolver;
import com.fasterxml.jackson.databind.jsontype.TypeResolverBuilder;
import com.fasterxml.jackson.databind.ser.VirtualBeanPropertyWriter;
import com.fasterxml.jackson.databind.util.Converter;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.util.Assert;
/**
* Allows for creating Jackson ({@link JsonSerializer}, {@link JsonDeserializer},
* {@link KeyDeserializer}, {@link TypeResolverBuilder}, {@link TypeIdResolver})
* beans with autowiring against a Spring {@link ApplicationContext}.
*
* As of Spring 4.3, this overrides all factory methods in {@link HandlerInstantiator},
* including non-abstract ones and recently introduced ones from Jackson 2.4 and 2.5:
* for {@link ValueInstantiator}, {@link ObjectIdGenerator}, {@link ObjectIdResolver},
* {@link PropertyNamingStrategy}, {@link Converter}, {@link VirtualBeanPropertyWriter}.
*
* @author Sebastien Deleuze
* @author Juergen Hoeller
* @since 4.1.3
* @see Jackson2ObjectMapperBuilder#handlerInstantiator(HandlerInstantiator)
* @see ApplicationContext#getAutowireCapableBeanFactory()
* @see HandlerInstantiator
*/
public class SpringHandlerInstantiator extends HandlerInstantiator {
private final AutowireCapableBeanFactory beanFactory;
/**
* Create a new SpringHandlerInstantiator for the given BeanFactory.
* @param beanFactory the target BeanFactory
*/
public SpringHandlerInstantiator(AutowireCapableBeanFactory beanFactory) {
Assert.notNull(beanFactory, "BeanFactory must not be null");
this.beanFactory = beanFactory;
}
@Override
public JsonDeserializer deserializerInstance(DeserializationConfig config,
Annotated annotated, Class implClass) {
return (JsonDeserializer) this.beanFactory.createBean(implClass);
}
@Override
public KeyDeserializer keyDeserializerInstance(DeserializationConfig config,
Annotated annotated, Class implClass) {
return (KeyDeserializer) this.beanFactory.createBean(implClass);
}
@Override
public JsonSerializer serializerInstance(SerializationConfig config,
Annotated annotated, Class implClass) {
return (JsonSerializer) this.beanFactory.createBean(implClass);
}
@Override
public TypeResolverBuilder typeResolverBuilderInstance(MapperConfig config,
Annotated annotated, Class implClass) {
return (TypeResolverBuilder) this.beanFactory.createBean(implClass);
}
@Override
public TypeIdResolver typeIdResolverInstance(MapperConfig config, Annotated annotated, Class implClass) {
return (TypeIdResolver) this.beanFactory.createBean(implClass);
}
/** @since 4.3 */
@Override
public ValueInstantiator valueInstantiatorInstance(MapperConfig config,
Annotated annotated, Class implClass) {
return (ValueInstantiator) this.beanFactory.createBean(implClass);
}
/** @since 4.3 */
@Override
public ObjectIdGenerator objectIdGeneratorInstance(MapperConfig config,
Annotated annotated, Class implClass) {
return (ObjectIdGenerator) this.beanFactory.createBean(implClass);
}
/** @since 4.3 */
@Override
public ObjectIdResolver resolverIdGeneratorInstance(MapperConfig config,
Annotated annotated, Class implClass) {
return (ObjectIdResolver) this.beanFactory.createBean(implClass);
}
/** @since 4.3 */
@Override
public PropertyNamingStrategy namingStrategyInstance(MapperConfig config,
Annotated annotated, Class implClass) {
return (PropertyNamingStrategy) this.beanFactory.createBean(implClass);
}
/** @since 4.3 */
@Override
public Converter converterInstance(MapperConfig config,
Annotated annotated, Class implClass) {
return (Converter) this.beanFactory.createBean(implClass);
}
/** @since 4.3 */
@Override
public VirtualBeanPropertyWriter virtualPropertyWriterInstance(MapperConfig config, Class implClass) {
return (VirtualBeanPropertyWriter) this.beanFactory.createBean(implClass);
}
}