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The Adobe Experience Manager SDK
There is a newer version: 2024.11.18751.20241128T090041Z-241100
/*
 * Copyright (C) 2011 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 static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkPositionIndexes;
import static com.google.common.collect.BoundType.CLOSED;
import com.google.common.primitives.Ints;
import javax.annotation.Nullable;

/**
 *  An immutable sorted multiset with one or more distinct elements.
 *
 *  @author Louis Wasserman
 *
 * @deprecated The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
 */
// uses writeReplace, not default serialization
@SuppressWarnings("serial")
@Deprecated(since = "2022-12-01")
final class RegularImmutableSortedMultiset extends ImmutableSortedMultiset {

    private final transient RegularImmutableSortedSet elementSet;

    private final transient int[] counts;

    private final transient long[] cumulativeCounts;

    private final transient int offset;

    private final transient int length;

    RegularImmutableSortedMultiset(RegularImmutableSortedSet elementSet, int[] counts, long[] cumulativeCounts, int offset, int length) {
        this.elementSet = elementSet;
        this.counts = counts;
        this.cumulativeCounts = cumulativeCounts;
        this.offset = offset;
        this.length = length;
    }

    @Override
    Entry getEntry(int index) {
        return Multisets.immutableEntry(elementSet.asList().get(index), counts[offset + index]);
    }

    @Override
    public Entry firstEntry() {
        return getEntry(0);
    }

    @Override
    public Entry lastEntry() {
        return getEntry(length - 1);
    }

    @Override
    public int count(@Nullable Object element) {
        int index = elementSet.indexOf(element);
        return (index == -1) ? 0 : counts[index + offset];
    }

    @Override
    public int size() {
        long size = cumulativeCounts[offset + length] - cumulativeCounts[offset];
        return Ints.saturatedCast(size);
    }

    @Override
    public ImmutableSortedSet elementSet() {
        return elementSet;
    }

    @Override
    public ImmutableSortedMultiset headMultiset(E upperBound, BoundType boundType) {
        return getSubMultiset(0, elementSet.headIndex(upperBound, checkNotNull(boundType) == CLOSED));
    }

    @Override
    public ImmutableSortedMultiset tailMultiset(E lowerBound, BoundType boundType) {
        return getSubMultiset(elementSet.tailIndex(lowerBound, checkNotNull(boundType) == CLOSED), length);
    }

    ImmutableSortedMultiset getSubMultiset(int from, int to) {
        checkPositionIndexes(from, to, length);
        if (from == to) {
            return emptyMultiset(comparator());
        } else if (from == 0 && to == length) {
            return this;
        } else {
            RegularImmutableSortedSet subElementSet = (RegularImmutableSortedSet) elementSet.getSubSet(from, to);
            return new RegularImmutableSortedMultiset(subElementSet, counts, cumulativeCounts, offset + from, to - from);
        }
    }

    @Override
    boolean isPartialView() {
        return offset > 0 || length < counts.length;
    }
}