cn.felord.retrofit.json.JacksonObjectMapperFactory Maven / Gradle / Ivy

/*
 *  Copyright (c) 2023. felord.cn
 *    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
 *       https://www.apache.org/licenses/LICENSE-2.0
 *  Website:
 *       https://felord.cn
 *  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 cn.felord.retrofit.json;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.PropertyNamingStrategy;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.YearMonthSerializer;

import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.YearMonth;
import java.time.format.DateTimeFormatter;

/**
 * @author dax
 * @since 2023/5/26 18:39
 */
public final class JacksonObjectMapperFactory {

    private static final DateTimeFormatter yearMonth = DateTimeFormatter.ofPattern("uMM");

    private JacksonObjectMapperFactory() {
    }

    public static ObjectMapper create() {
        JavaTimeModule javaTimeModule = new JavaTimeModule();
        javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ISO_LOCAL_DATE));
        javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ISO_LOCAL_DATE_TIME));
        javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ISO_LOCAL_TIME));
        javaTimeModule.addSerializer(Instant.class, UnixInstantSerializer.INSTANCE);
        javaTimeModule.addSerializer(YearMonth.class, new YearMonthSerializer(yearMonth));
        javaTimeModule.addDeserializer(YearMonth.class, new YearMonthNumberDeserializer(yearMonth));
        return new ObjectMapper().setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE)
                .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
                // empty string error
                .configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT, true)
                .setSerializationInclusion(JsonInclude.Include.NON_NULL)
                .registerModule(javaTimeModule);
    }


}