package com.battery.business.runtime;
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import java.io.IOException;
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import java.time.Instant;
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import java.util.Date;
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import java.util.List;
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import com.fasterxml.jackson.core.JsonGenerator;
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import com.fasterxml.jackson.databind.BeanDescription;
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import com.fasterxml.jackson.databind.JsonSerializer;
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import com.fasterxml.jackson.databind.SerializationConfig;
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import com.fasterxml.jackson.databind.SerializerProvider;
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import com.fasterxml.jackson.databind.module.SimpleModule;
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import com.fasterxml.jackson.databind.ser.BeanPropertyWriter;
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import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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/** 只在自研业务响应边界统一时间为毫秒数，平台接口保持原有契约。 */
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@Configuration
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public class BatteryTimeJsonConfig
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{
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/** 注册业务时间序列化规则，覆盖继承的平台审计时间字段。 */
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@Bean
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public SimpleModule batteryTimeModule()
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{
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SimpleModule module = new SimpleModule("battery-millisecond-times");
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module.setSerializerModifier(new BeanSerializerModifier()
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{
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@Override public List<BeanPropertyWriter> changeProperties(SerializationConfig config,
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BeanDescription description, List<BeanPropertyWriter> properties)
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{
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if (!description.getBeanClass().getName().startsWith("com.battery.business.")) return properties;
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for (BeanPropertyWriter property : properties)
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{
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Class<?> type = property.getType().getRawClass();
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if (Date.class.isAssignableFrom(type) || type == Instant.class)
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property.assignSerializer(new JsonSerializer<Object>()
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{
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@Override public void serialize(Object value, JsonGenerator generator, SerializerProvider provider) throws IOException
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{ generator.writeNumber(value instanceof Date date ? date.getTime() : ((Instant) value).toEpochMilli()); }
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});
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}
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return properties;
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}
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});
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return module;
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}
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}
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