/*
 * 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.
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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 (JsonSerializer, JsonDeserializer, KeyDeserializer, TypeResolverBuilder, TypeIdResolver) beans with autowiring against a Spring ApplicationContext.

As of Spring 4.3, this overrides all factory methods in HandlerInstantiator, including non-abstract ones and recently introduced ones from Jackson 2.4 and 2.5: for ValueInstantiator, ObjectIdGenerator, ObjectIdResolver, PropertyNamingStrategy, Converter, VirtualBeanPropertyWriter.

Author:Sebastien Deleuze, Juergen Hoeller
See Also:
Since:4.1.3
/** * Allows for creating Jackson ({@link JsonSerializer}, {@link JsonDeserializer}, * {@link KeyDeserializer}, {@link TypeResolverBuilder}, {@link TypeIdResolver}) * beans with autowiring against a Spring {@link ApplicationContext}. * * <p>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.
Params:
  • beanFactory – the target 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
/** @since 4.3 */
@Override public ValueInstantiator valueInstantiatorInstance(MapperConfig<?> config, Annotated annotated, Class<?> implClass) { return (ValueInstantiator) this.beanFactory.createBean(implClass); }
Since:4.3
/** @since 4.3 */
@Override public ObjectIdGenerator<?> objectIdGeneratorInstance(MapperConfig<?> config, Annotated annotated, Class<?> implClass) { return (ObjectIdGenerator<?>) this.beanFactory.createBean(implClass); }
Since:4.3
/** @since 4.3 */
@Override public ObjectIdResolver resolverIdGeneratorInstance(MapperConfig<?> config, Annotated annotated, Class<?> implClass) { return (ObjectIdResolver) this.beanFactory.createBean(implClass); }
Since:4.3
/** @since 4.3 */
@Override public PropertyNamingStrategy namingStrategyInstance(MapperConfig<?> config, Annotated annotated, Class<?> implClass) { return (PropertyNamingStrategy) this.beanFactory.createBean(implClass); }
Since:4.3
/** @since 4.3 */
@Override public Converter<?, ?> converterInstance(MapperConfig<?> config, Annotated annotated, Class<?> implClass) { return (Converter<?, ?>) this.beanFactory.createBean(implClass); }
Since:4.3
/** @since 4.3 */
@Override public VirtualBeanPropertyWriter virtualPropertyWriterInstance(MapperConfig<?> config, Class<?> implClass) { return (VirtualBeanPropertyWriter) this.beanFactory.createBean(implClass); } }