io.github.jinghui70.rainbow.dbaccess.fieldmapper.BlobObjectField Maven / Gradle / Ivy
package io.github.jinghui70.rainbow.dbaccess.fieldmapper;
import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONUtil;
import java.lang.reflect.Field;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.nio.charset.StandardCharsets;
import java.util.List;
public class BlobObjectField extends BlobField {
private final Class fieldClass;
private Class comonentClass;
public BlobObjectField(Class fieldClass) {
this.fieldClass = fieldClass;
if (fieldClass.isArray())
comonentClass = fieldClass.getComponentType();
}
public BlobObjectField(Class fieldClass, Class componentClass) {
this.fieldClass = fieldClass;
this.comonentClass = componentClass;
}
public BlobObjectField(Class fieldClass, Field field) {
this.fieldClass = fieldClass;
if (fieldClass.isAssignableFrom(List.class)) {
ParameterizedType parameterizedType = (ParameterizedType) field.getGenericType();
Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
comonentClass = (Class) actualTypeArguments[0];
}
}
@Override
protected byte[] getBytes(Object value) {
String json = JSONUtil.toJsonStr(value);
return json.getBytes(StandardCharsets.UTF_8);
}
@SuppressWarnings("unchecked")
@Override
protected T parse(byte[] bytes) {
String json = new String(bytes, StandardCharsets.UTF_8);
if (fieldClass.isArray()) {
JSONArray array = JSONUtil.parseArray(json);
return (T) array.toArray(comonentClass);
}
if (fieldClass.isAssignableFrom(List.class)) {
JSONArray array = JSONUtil.parseArray(json);
return (T) array.toList(comonentClass);
}
return JSONUtil.toBean(json, fieldClass);
}
}