/**
* 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 org.apache.aurora.scheduler.storage.mem;
import com.google.common.base.Function;
import org.apache.thrift.TBase;
/**
* Utility class for common operations amongst in-memory store implementations.
*/
final class Util {
private Util() {
// Utility class.
}
/**
* Creates a function that performs a 'deep copy' on a thrift struct of a specific type. The
* resulting copied objects will be exactly identical to the original. Mutations to the original
* object will not be reflected in the copy, and vice versa.
*
* @return A copier for the provided type of thrift structs.
*/
static <T extends TBase<T, ?>> Function<T, T> deepCopier() {
return input -> {
if (input == null) {
return null;
}
@SuppressWarnings("unchecked")
T t = (T) input.deepCopy();
return t;
};
}
}