com.carlomicieli.jtrains.config.WebConfig.java Source code

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Here is the source code for com.carlomicieli.jtrains.config.WebConfig.java

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/*
 * Copyright 2014 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.carlomicieli.jtrains.config;

import com.carlomicieli.jtrains.infrastructure.web.CompletableFutureReturnValueHandler;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;

import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.List;

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {
    @Resource
    private RequestMappingHandlerAdapter requestMappingHandlerAdapter;

    @PostConstruct
    public void init() {
        final List<HandlerMethodReturnValueHandler> originalHandlers = new ArrayList<>(
                requestMappingHandlerAdapter.getReturnValueHandlers());
        originalHandlers.add(0, listenableFutureReturnValueHandler());
        requestMappingHandlerAdapter.setReturnValueHandlers(originalHandlers);
    }

    @Bean
    public HandlerMethodReturnValueHandler listenableFutureReturnValueHandler() {
        return new CompletableFutureReturnValueHandler();
    }

    @Bean
    public ObjectMapper jacksonObjectMapper() {
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.findAndRegisterModules().setSerializationInclusion(JsonInclude.Include.NON_NULL)
                .disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        return objectMapper;
    }

}