these-days-backend/src/main/java/in/ocsf/these/days/app/state/BeanMapPersist.java

package in.ocsf.these.days.app.state;/* kpmy 20.02.2017 */

import org.apache.commons.beanutils.BeanMap;
import org.springframework.statemachine.StateMachineContext;

import java.util.HashMap;
import java.util.Map;

public interface BeanMapPersist {

    default Map<String, Object> toMap(StateMachineContext context) throws Exception {
        Map<String, Object> data = new HashMap<>(new BeanMap(context));
        data.replace("class", ((Class) data.get("class")).getCanonicalName());
        return data;
    }

    default StateMachineContext fromMap(Map<String, Object> data) throws Exception {
        if (data != null) {
            data.replace("class", Class.forName((String) data.get("class")));
            BeanMap beanMap = new BeanMap();
            beanMap.putAll(data);
            return (StateMachineContext) beanMap.getBean();
        } else {
            return null;
        }
    }
}