/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.cyclop.common;
import java.lang.reflect.Field;
import org.cyclop.model.exception.ServiceException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SerializationUtil {
private final static Logger LOG = LoggerFactory.getLogger(SerializationUtil.class);
public static void setField(Object obj, String fieldName, Object val) {
LOG.debug("Set filed {} to {} on {}", fieldName, val, obj);
try {
Class<?> clazz = obj.getClass();
Field field = findField(clazz, fieldName);
if (field == null) {
throw new ServiceException("Field: " + fieldName + " not found on in class heirarchy: " + clazz);
}
field.setAccessible(true);
field.set(obj, val);
} catch (SecurityException | IllegalArgumentException | IllegalAccessException e) {
throw new ServiceException("Error setting final field: " + fieldName + " on: " + obj + " to: " + val
+ " - Error: " + e.getClass() + ", Msg: " + e.getMessage(), e);
}
}
private static Field findField(Class<?> clazz, String fieldName) {
Field field = null;
Class<?> fieldClass = clazz;
do {
try {
field = fieldClass.getDeclaredField(fieldName);
} catch (NoSuchFieldException e) {
if (LOG.isDebugEnabled()) {
LOG.debug("Field: {} not found on: {}, message:{}", fieldName, fieldClass, e.getMessage());
}
}
fieldClass = fieldClass.getSuperclass();
} while (fieldClass != null && field == null);
LOG.debug("Found filed {} on {}", fieldName, clazz);
return field;
}
}