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package uncle.utils;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Created by hujianbo on 2018/1/18.
 */
public final class JsonUtil {
    private static final Logger LOGGER = LoggerFactory.getLogger(JsonUtil.class);
    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();

    /**
     * 将POJO转化为json
     *
     * @param object
     * @param 
     * @return
     */
    public static  String toJson(Object object) {
        String json;
        try {
            json = OBJECT_MAPPER.writeValueAsString(object);
        } catch (Exception e) {
            LOGGER.error("convert POJO to JSON failure ", e);
            throw new RuntimeException(e);
        }
        return json;
    }

    /**
     * 将json转为pojo
     *
     * @param json
     * @param type
     * @param 
     * @return
     */
    public static  T fromJson(String json, Class type) {
        T pojo;
        try {
            pojo = OBJECT_MAPPER.readValue(json, type);
        } catch (Exception e) {
            LOGGER.error("convert JSON to POJO failure", e);
            throw new RuntimeException(e);
        }
        return pojo;
    }
}