/*
* 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.apache.flink.api.common.typeutils.base.array;
import static java.lang.Math.min;
import org.apache.flink.annotation.Internal;
import org.apache.flink.api.common.typeutils.TypeComparator;
import org.apache.flink.api.common.typeutils.base.BooleanComparator;
@Internal
public class BooleanPrimitiveArrayComparator extends PrimitiveArrayComparator<boolean[], BooleanComparator> {
public BooleanPrimitiveArrayComparator(boolean ascending) {
super(ascending, new BooleanComparator(ascending));
}
@Override
public int hash(boolean[] record) {
int result = 0;
for (boolean field : record) {
result += field ? 1231 : 1237;
}
return result;
}
@Override
public int compare(boolean[] first, boolean[] second) {
for (int x = 0; x < min(first.length, second.length); x++) {
int cmp = (second[x] == first[x] ? 0 : (first[x] ? 1 : -1));
if (cmp != 0) {
return ascending ? cmp : -cmp;
}
}
int cmp = first.length - second.length;
return ascending ? cmp : -cmp;
}
@Override
public TypeComparator<boolean[]> duplicate() {
BooleanPrimitiveArrayComparator dupe = new BooleanPrimitiveArrayComparator(this.ascending);
dupe.setReference(this.reference);
return dupe;
}
}