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/*
 * Copyright (c) 2016 Goldman Sachs and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompany this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */

package org.eclipse.collections.impl.multimap.set;

import org.eclipse.collections.api.block.function.Function;
import org.eclipse.collections.api.block.function.Function2;
import org.eclipse.collections.api.map.MutableMap;
import org.eclipse.collections.api.multimap.bag.MutableBagMultimap;
import org.eclipse.collections.api.multimap.set.ImmutableSetMultimap;
import org.eclipse.collections.api.multimap.set.MutableSetMultimap;
import org.eclipse.collections.api.set.ImmutableSet;
import org.eclipse.collections.api.set.MutableSet;
import org.eclipse.collections.api.tuple.Pair;
import org.eclipse.collections.impl.map.mutable.UnifiedMap;
import org.eclipse.collections.impl.multimap.AbstractMutableMultimap;
import org.eclipse.collections.impl.multimap.bag.HashBagMultimap;

public abstract class AbstractMutableSetMultimap extends AbstractMutableMultimap> implements MutableSetMultimap
{
    protected AbstractMutableSetMultimap()
    {
    }

    protected AbstractMutableSetMultimap(Pair... pairs)
    {
        super(pairs);
    }

    protected AbstractMutableSetMultimap(Iterable> inputIterable)
    {
        super(inputIterable);
    }

    protected AbstractMutableSetMultimap(int size)
    {
        super(size);
    }

    @Override
    public MutableSetMultimap toMutable()
    {
        return new UnifiedSetMultimap<>(this);
    }

    @Override
    public ImmutableSetMultimap toImmutable()
    {
        MutableMap> map = UnifiedMap.newMap();

        this.map.forEachKeyValue((key, set) -> map.put(key, set.toImmutable()));

        return new ImmutableSetMultimapImpl<>(map);
    }

    @Override
    public  MutableBagMultimap collectKeysValues(Function2> function)
    {
        return this.collectKeysValues(function, HashBagMultimap.newMultimap());
    }

    @Override
    public  MutableBagMultimap collectValues(Function function)
    {
        return this.collectValues(function, HashBagMultimap.newMultimap());
    }

    @Override
    public MutableSetMultimap asSynchronized()
    {
        return SynchronizedSetMultimap.of(this);
    }
}