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package org.openecomp.sdc.securityutil;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
public class RepresentationUtils {
private static final Logger log = LoggerFactory.getLogger(RepresentationUtils.class.getName());
/**
* Build JSON Representation of given Object
*
* @param elementToRepresent
* @return
* @throws IOException
*/
public static <T> String toRepresentation(T elementToRepresent) throws IOException {
ObjectMapper mapper = new ObjectMapper();
mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
return mapper.writeValueAsString(elementToRepresent);
}
/**
* Convert JSON representation to given class
*
* @param json
* @param clazz
* @param <T>
* @return
*/
public static <T> T fromRepresentation(String json, Class<T> clazz) {
ObjectMapper mapper = new ObjectMapper();
T object = null;
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
try {
object = mapper.readValue(json, clazz);
} catch (Exception e) {
log.error("Error when parsing JSON of object of type {}", clazz.getSimpleName(), e);
} // return null in case of exception
return object;
}
}
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