Что тут не так вроде все правильно сделано,или я чего то не понимаю...
package com.javarush.task.task33.task3304;
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.*;
import java.util.*;
import java.io.StringWriter;
/*
Конвертация из одного класса в другой используя JSON Ӏ 3304
*/
public class Solution {
public static void main(String[] args) throws IOException {
Second s = (Second) convertOneToAnother(new First(), Second.class);
First f = (First) convertOneToAnother(new Second(), First.class);
}
public static Object convertOneToAnother(Object one, Class resultClassObject) throws IOException {
boolean flag = false;
if (one.getClass().getSimpleName().toLowerCase(Locale.ROOT).equals(new First().name)) {
flag = true;
}
ObjectMapper objectMapper = new ObjectMapper();
StringWriter writer = new StringWriter();
objectMapper.writeValue(writer, one);
if (flag) {
return objectMapper.readValue(new First().name, resultClassObject);
} else {
return objectMapper.readValue(new Second().name, resultClassObject);
}
}
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "className")
@JsonSubTypes(@JsonSubTypes.Type(value = First.class, name = "first"))
public static class First {
public int i;
public String name;
}
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "className")
@JsonSubTypes(@JsonSubTypes.Type(value = Second.class, name = "second"))
public static class Second {
public int i;
public String name;
}
}