com.nebhale.cyclinglibrary.web.json.JsonSerializerRegisteringBeanPostProcessor.java Source code

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Here is the source code for com.nebhale.cyclinglibrary.web.json.JsonSerializerRegisteringBeanPostProcessor.java

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/*
 * Copyright 2013 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 com.nebhale.cyclinglibrary.web.json;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.stereotype.Component;

import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;

@Component
final class JsonSerializerRegisteringBeanPostProcessor<T> implements BeanPostProcessor {

    private final ObjectMapper objectMapper;

    @Autowired
    JsonSerializerRegisteringBeanPostProcessor(ObjectMapper objectMapper) {
        this.objectMapper = objectMapper;
    }

    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        return bean;
    }

    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        if (bean instanceof JsonSerializer) {
            JsonSerializer<?> jsonSerializer = (JsonSerializer<?>) bean;
            this.objectMapper.registerModule(new SimpleModule(beanName).addSerializer(jsonSerializer));
        }

        return bean;
    }
}