package com.ruoyi.common.translation.core.handler;
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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.ruoyi.common.core.utils.StringUtils;
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import com.ruoyi.common.translation.annotation.Translation;
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import com.ruoyi.common.translation.core.TranslationInterface;
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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.Map;
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import java.util.Objects;
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import java.util.concurrent.ConcurrentHashMap;
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/**
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* 翻译处理器
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*
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* @author Lion Li
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*/
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@Slf4j
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public class TranslationHandler extends JsonSerializer<Object> implements ContextualSerializer {
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/**
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* 全局翻译实现类映射器
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*/
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public static final Map<String, TranslationInterface> TRANSLATION_MAPPER = new ConcurrentHashMap<>();
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private Translation translation;
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@Override
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public void serialize(Object value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
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try {
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TranslationInterface trans = TRANSLATION_MAPPER.get(translation.type());
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if (ObjectUtil.isNotNull(trans)) {
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String result = trans.translation(value, translation.other());
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gen.writeString(StringUtils.isNotBlank(result) ? result : value.toString());
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} else {
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gen.writeString(value.toString());
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}
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} catch (BeansException e) {
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log.error("数据未查到, 采用默认处理 => {}", e.getMessage());
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gen.writeString(value.toString());
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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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Translation translation = property.getAnnotation(Translation.class);
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if (Objects.nonNull(translation)) {
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this.translation = translation;
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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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