/*******************************************************************************
* gMix open source project - https://svs.informatik.uni-hamburg.de/gmix/
* Copyright (C) 2014 SVS
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*******************************************************************************/
package staticContent.evaluation.traceParser.engine.comparator;
import java.util.Comparator;
import staticContent.framework.util.Util;
public class FlowGroupComparator implements Comparator<String> {
/**
* Returns a negative integer, zero, or a positive integer as the first
* argument is less than, equal to, or greater than the second.
*
* Note: this comparator imposes orderings that are inconsistent with
* equals. This comparator will only compare the
* "senderId" and "start" values of class FlowGroup.
*/
@Override
public int compare(String s1, String s2) {
String id1AsString = s1.substring(0, s1.indexOf('|'));
String id2AsString = s2.substring(0, s2.indexOf('|'));
long id1 = Long.parseLong(id1AsString);
long id2 = Long.parseLong(id2AsString);
if (id1 < id2) {
return -1;
} else if (id1 > id2) {
return 1;
} else { // decide by start offset
String offset1AsString = s1.substring(s1.indexOf('|')+1, Util.getIthIndexOf('|', s1, 2));
String offset2AsString = s2.substring(s2.indexOf('|')+1, Util.getIthIndexOf('|', s2, 2));
long offset1 = Long.parseLong(offset1AsString);
long offset2 = Long.parseLong(offset2AsString);
return (offset1 == offset2 ? 0 : // Values are equal
(offset1 < offset2 ? -1 : // (-0.0, 0.0) or (!NaN, NaN)
1)); // (0.0, -0.0) or (NaN, !NaN)
}
}
}