org.graylog.plugins.views.search.searchtypes.pivot.buckets.FieldsSortingComparator Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog.plugins.views.search.searchtypes.pivot.buckets;
import java.util.Comparator;
import java.util.List;
public class FieldsSortingComparator implements Comparator {
private final List sortFields;
public FieldsSortingComparator(List sortFields) {
this.sortFields = sortFields;
}
@Override
public int compare(String s1, String s2) {
if (sortFields.isEmpty()) {
return 0;
}
int s1Index = sortFields.indexOf(s1);
int s2Index = sortFields.indexOf(s2);
if (s1Index == s2Index) {
return 0;
}
if (s1Index == -1) {
return 1;
}
if (s2Index == -1) {
return -1;
}
return Integer.compare(s1Index, s2Index);
}
}