cn.k7g.alloy.ioc.conversion.AlloyContentConverter Maven / Gradle / Ivy
package cn.k7g.alloy.ioc.conversion;
import cn.k7g.alloy.annotation.AlloyContent;
import cn.k7g.alloy.expose.AlloyContentHandler;
import cn.k7g.alloy.model.AlloyContentHold;
import com.fasterxml.jackson.core.JsonProcessingException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.web.format.WebConversionService;
import org.springframework.context.ApplicationContext;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.core.convert.converter.GenericConverter;
import org.springframework.stereotype.Component;
import java.lang.annotation.Annotation;
import java.util.HashSet;
import java.util.Set;
/**
* 重写convert支持query 参数
* @author victor-wu
* @date 2021/9/27 下午1:10
*/
@Component
public class AlloyContentConverter implements GenericConverter {
@Autowired
AlloyContentHandler handler;
@Autowired
ApplicationContext context;
@Override
public Set getConvertibleTypes() {
Set objects = new HashSet<>();
objects.add(new ConvertiblePair(String.class, AlloyContentHold.class));
return objects;
}
@Override
public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
try {
WebConversionService conversionService = context.getBean(WebConversionService.class);
if (targetType.hasAnnotation(AlloyContent.class)) {
String val = handler.decodeObject(source.toString(), String.class);
Annotation[] objects = new Annotation[targetType.getAnnotations().length - 1];
int i = 0;
for (Annotation annotation : targetType.getAnnotations()) {
if (!(annotation instanceof AlloyContent)) {
objects[i++] = annotation;
}
}
targetType = new TypeDescriptor(targetType.getResolvableType(), targetType.getType(), objects);
return conversionService.convert(val, sourceType, targetType);
} else {
return conversionService.convert(source, sourceType, targetType);
}
} catch (JsonProcessingException e) {
throw new RuntimeException(e);
}
}
}