/*
* Seldon -- open source prediction engine
* =======================================
*
* Copyright 2011-2015 Seldon Technologies Ltd and Rummble Ltd (http://www.seldon.io/)
*
* ********************************************************************************************
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* ********************************************************************************************
*/
package io.seldon.general.jdo;
import javax.jdo.JDOHelper;
import java.lang.reflect.Field;
import org.apache.log4j.Logger;
/**
* Created by: marc on 18/10/2011 at 14:04
*/
public class JdoPeerUtil {
private static final Logger logger = Logger.getLogger(JdoPeerUtil.class);
public static <T> void updateRetrievedItem(Class<T> clazz, T candidateObject, T retrievedObject) {
final Field[] itemFields = clazz.getDeclaredFields();
for (Field itemField : itemFields) {
itemField.setAccessible(true);
try {
final Object submissionFieldValue = itemField.get(candidateObject);
if (submissionFieldValue != null) {
final String fieldName = itemField.getName();
if (fieldName.startsWith("jdo")) {
continue;
}
logger.info("Setting retrieved candidateObject's " + fieldName + " to " + submissionFieldValue);
itemField.set(retrievedObject, submissionFieldValue);
JDOHelper.makeDirty(retrievedObject, fieldName);
}
} catch (IllegalAccessException e) {
logger.info(e.getMessage());
}
}
}
}