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Fastjson is a JSON processor (JSON parser + JSON generator) written in Java

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package com.alibaba.fastjson2.reader;

import com.alibaba.fastjson2.JSONReader;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.time.LocalDate;
import java.util.Locale;
import java.util.function.BiConsumer;

final class FieldReaderLocalDate
        extends FieldReaderObject {
    public FieldReaderLocalDate(
            String fieldName,
            Type fieldType,
            Class fieldClass,
            int ordinal,
            long features,
            String format,
            Locale locale,
            Object defaultValue,
            Method method,
            Field field,
            BiConsumer function
    ) {
        super(fieldName, fieldType, fieldClass, ordinal, features, format, locale, defaultValue, method, field, function);
        initReader = ObjectReaderImplLocalDate.of(format, locale);
    }

    @Override
    public ObjectReader getObjectReader(JSONReader jsonReader) {
        return initReader;
    }

    @Override
    public ObjectReader getObjectReader(JSONReader.Context context) {
        return initReader;
    }

    @Override
    public void readFieldValue(JSONReader jsonReader, Object object) {
        LocalDate localDate;
        // 若使用的是JSONReaderJSONB则使用JSONReaderJSONB定义的时间反序列化方法
        if (jsonReader.jsonb) {
            localDate = (LocalDate) initReader.readJSONBObject(jsonReader, fieldType, fieldName, features);
        } else {
            if (format != null) {
                localDate = (LocalDate) initReader.readObject(jsonReader, fieldType, fieldName, features);
            } else {
                localDate = jsonReader.readLocalDate();
            }
        }
        accept(object, localDate);
    }
}