/*************************GO-LICENSE-START*********************************
* Copyright 2014 ThoughtWorks, Inc.
*
* 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.
*************************GO-LICENSE-END***********************************/
package com.thoughtworks.go.server.ui;
import java.util.Comparator;
/**
* @understands sort direction
*/
public enum SortOrder {
ASC {
public <T> Comparator<T> comparator(final Comparator<T> comparator) {
return comparator;
}
},
DESC {
public <T> Comparator<T> comparator(final Comparator<T> comparator) {
return new Comparator<T>() {
public int compare(T one, T other) {
return comparator.compare(one, other) * -1;
}
};
}
};
public abstract <T> Comparator<T> comparator(final Comparator<T> comparator);
public static SortOrder orderFor(String order) {
return "DESC".equals(order) ? DESC : ASC;
}
}