Через регулярку работает, но Валя не принимает:(
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.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.Arrays;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/*
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 {
StringWriter stringWriter = new StringWriter();
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.writeValue(stringWriter, one);
String JSONString = stringWriter.toString()
.replaceAll("(?<=\"className\":\")[^\"]+"
, resultClassObject.getSimpleName().toLowerCase());
StringReader stringReader = new StringReader(JSONString);
return objectMapper.readValue(stringReader, resultClassObject);
}
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "className")
@JsonSubTypes(@JsonSubTypes.Type(value = First.class, name = "first"))
public static class First {
public int i = 5;
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 = 10;
public String name;
}
}