package com.dl.common.jackson;
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import cn.hutool.core.util.ObjectUtil;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.databind.BeanProperty;
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import com.fasterxml.jackson.databind.JsonMappingException;
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import com.fasterxml.jackson.databind.JsonSerializer;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import com.fasterxml.jackson.databind.ser.ContextualSerializer;
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import com.dl.common.annotation.Sensitive;
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import com.dl.common.core.service.SensitiveService;
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import com.dl.common.enums.SensitiveStrategy;
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import com.dl.common.utils.spring.SpringUtils;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.BeansException;
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import java.io.IOException;
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import java.util.Objects;
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/**
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* 数据脱敏json序列化工具
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*
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* @author Yjoioooo
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*/
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@Slf4j
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public class SensitiveJsonSerializer extends JsonSerializer<String> implements ContextualSerializer {
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private SensitiveStrategy strategy;
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@Override
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public void serialize(String value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
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try {
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SensitiveService sensitiveService = SpringUtils.getBean(SensitiveService.class);
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if (ObjectUtil.isNotNull(sensitiveService) && sensitiveService.isSensitive()) {
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gen.writeString(strategy.desensitizer().apply(value));
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} else {
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gen.writeString(value);
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}
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} catch (BeansException e) {
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log.error("脱敏实现不存在, 采用默认处理 => {}", e.getMessage());
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gen.writeString(value);
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}
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}
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@Override
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public JsonSerializer<?> createContextual(SerializerProvider prov, BeanProperty property) throws JsonMappingException {
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Sensitive annotation = property.getAnnotation(Sensitive.class);
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if (Objects.nonNull(annotation) && Objects.equals(String.class, property.getType().getRawClass())) {
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this.strategy = annotation.strategy();
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return this;
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}
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return prov.findValueSerializer(property.getType(), property);
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}
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}
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