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The Adobe Experience Manager SDK

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/*
 * Copyright (C) 2007 The Guava Authors
 *
 * 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 com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import java.io.Serializable;
import java.util.Comparator;

/**
 *  An ordering that tries several comparators in order.
 * @deprecated The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
 */
@GwtCompatible(serializable = true)
@Deprecated(since = "2022-12-01")
final class CompoundOrdering extends Ordering implements Serializable {

    final ImmutableList> comparators;

    CompoundOrdering(Comparator primary, Comparator secondary) {
        this.comparators = ImmutableList.>of(primary, secondary);
    }

    CompoundOrdering(Iterable> comparators) {
        this.comparators = ImmutableList.copyOf(comparators);
    }

    @Override
    public int compare(T left, T right) {
        // Avoid using the Iterator to avoid generating garbage (issue 979).
        int size = comparators.size();
        for (int i = 0; i < size; i++) {
            int result = comparators.get(i).compare(left, right);
            if (result != 0) {
                return result;
            }
        }
        return 0;
    }

    @Override
    public boolean equals(Object object) {
        if (object == this) {
            return true;
        }
        if (object instanceof CompoundOrdering) {
            CompoundOrdering that = (CompoundOrdering) object;
            return this.comparators.equals(that.comparators);
        }
        return false;
    }

    @Override
    public int hashCode() {
        return comparators.hashCode();
    }

    @Override
    public String toString() {
        return "Ordering.compound(" + comparators + ")";
    }

    private static final long serialVersionUID = 0;
}