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CustomTypeResolver.java
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CustomTypeResolver.java
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package io.quarkus.it.jackson.model;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.databind.DatabindContext;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.jsontype.impl.TypeIdResolverBase;
import com.fasterxml.jackson.databind.type.TypeFactory;
public class CustomTypeResolver extends TypeIdResolverBase {
private JavaType baseType;
public CustomTypeResolver() {
}
@Override
public void init(JavaType bt) {
baseType = bt;
}
@Override
public String idFromValue(Object value) {
return getId(value);
}
@Override
public String idFromValueAndType(Object value, Class<?> suggestedType) {
return getId(value);
}
@Override
public JsonTypeInfo.Id getMechanism() {
return JsonTypeInfo.Id.CUSTOM;
}
private String getId(Object value) {
if (value instanceof ModelWithJsonTypeIdResolver) {
return ((ModelWithJsonTypeIdResolver) value).getType();
}
return null;
}
@Override
public JavaType typeFromId(DatabindContext context, String id) {
if (id != null) {
switch (id) {
case "ONE":
return context.constructSpecializedType(baseType, ModelWithJsonTypeIdResolver.SubclassOne.class);
case "TWO":
return context.constructSpecializedType(baseType, ModelWithJsonTypeIdResolver.SubclassTwo.class);
}
}
return TypeFactory.unknownType();
}
}