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GS Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.

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/*
 * Copyright 2014 Goldman Sachs.
 *
 * 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.gs.collections.impl.map.mutable.primitive;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Arrays;
import java.util.Iterator;
import java.util.NoSuchElementException;

import com.gs.collections.api.ShortIterable;
import com.gs.collections.api.LazyShortIterable;
import com.gs.collections.api.LazyIntIterable;
import com.gs.collections.api.IntIterable;
import com.gs.collections.api.LazyIterable;
import com.gs.collections.api.RichIterable;
import com.gs.collections.api.bag.primitive.MutableShortBag;
import com.gs.collections.api.bag.primitive.MutableIntBag;
import com.gs.collections.api.block.function.primitive.ShortToObjectFunction;
import com.gs.collections.api.block.function.primitive.ShortToIntFunction;
import com.gs.collections.api.block.function.primitive.IntFunction;
import com.gs.collections.api.block.function.primitive.IntFunction0;
import com.gs.collections.api.block.function.primitive.IntToIntFunction;
import com.gs.collections.api.block.function.primitive.IntToObjectFunction;
import com.gs.collections.api.block.function.primitive.ObjectIntToObjectFunction;
import com.gs.collections.api.block.function.primitive.ObjectShortToObjectFunction;
import com.gs.collections.api.block.predicate.primitive.ShortIntPredicate;
import com.gs.collections.api.block.predicate.primitive.ShortPredicate;
import com.gs.collections.api.block.predicate.primitive.IntPredicate;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.block.procedure.primitive.ShortProcedure;
import com.gs.collections.api.block.procedure.primitive.ShortIntProcedure;
import com.gs.collections.api.block.procedure.primitive.IntProcedure;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.api.collection.MutableCollection;
import com.gs.collections.api.collection.primitive.ImmutableIntCollection;
import com.gs.collections.api.collection.primitive.MutableIntCollection;
import com.gs.collections.api.iterator.ShortIterator;
import com.gs.collections.api.iterator.IntIterator;
import com.gs.collections.api.list.primitive.MutableShortList;
import com.gs.collections.api.list.primitive.MutableIntList;
import com.gs.collections.api.map.primitive.ShortIntMap;
import com.gs.collections.api.map.primitive.ImmutableShortIntMap;
import com.gs.collections.api.map.primitive.MutableShortIntMap;
import com.gs.collections.api.set.MutableSet;
import com.gs.collections.api.set.primitive.ShortSet;
import com.gs.collections.api.set.primitive.IntSet;
import com.gs.collections.api.set.primitive.ImmutableShortSet;
import com.gs.collections.api.set.primitive.MutableShortSet;
import com.gs.collections.api.tuple.primitive.ShortIntPair;
import com.gs.collections.api.set.primitive.MutableIntSet;
import com.gs.collections.impl.bag.mutable.primitive.ShortHashBag;
import com.gs.collections.impl.bag.mutable.primitive.IntHashBag;
import com.gs.collections.impl.block.factory.primitive.ShortPredicates;
import com.gs.collections.impl.collection.mutable.primitive.SynchronizedIntCollection;
import com.gs.collections.impl.collection.mutable.primitive.UnmodifiableIntCollection;
import com.gs.collections.impl.factory.Sets;
import com.gs.collections.impl.factory.primitive.IntLists;
import com.gs.collections.impl.factory.primitive.ShortIntMaps;
import com.gs.collections.impl.factory.primitive.ShortSets;
import com.gs.collections.impl.lazy.AbstractLazyIterable;
import com.gs.collections.impl.lazy.primitive.AbstractLazyShortIterable;
import com.gs.collections.impl.lazy.primitive.LazyIntIterableAdapter;
import com.gs.collections.impl.lazy.primitive.LazyShortIterableAdapter;
import com.gs.collections.impl.list.mutable.FastList;
import com.gs.collections.impl.list.mutable.primitive.ShortArrayList;
import com.gs.collections.impl.list.mutable.primitive.IntArrayList;
import com.gs.collections.impl.set.mutable.primitive.ShortHashSet;
import com.gs.collections.impl.set.mutable.primitive.SynchronizedShortSet;
import com.gs.collections.impl.set.mutable.primitive.UnmodifiableShortSet;
import com.gs.collections.impl.set.mutable.primitive.IntHashSet;
import com.gs.collections.impl.tuple.primitive.PrimitiveTuples;

/**
 * This file was automatically generated from template file primitivePrimitiveHashMap.stg.
 *
 * @since 3.0.
 */
public class ShortIntHashMap implements MutableShortIntMap, Externalizable
{
    static final int EMPTY_VALUE = 0;
    private static final long serialVersionUID = 1L;
    private static final short EMPTY_KEY = (short) 0;
    private static final short REMOVED_KEY = (short) 1;

    private static final int OCCUPIED_DATA_RATIO = 2;
    private static final int OCCUPIED_SENTINEL_RATIO = 4;
    private static final int DEFAULT_INITIAL_CAPACITY = 8;

    private short[] keys;
    private int[] values;

    private int occupiedWithData;
    private int occupiedWithSentinels;

    private SentinelValues sentinelValues;

    public ShortIntHashMap()
    {
        this.allocateTable(DEFAULT_INITIAL_CAPACITY << 1);
    }

    public ShortIntHashMap(int initialCapacity)
    {
        if (initialCapacity < 0)
        {
            throw new IllegalArgumentException("initial capacity cannot be less than 0");
        }
        int capacity = this.smallestPowerOfTwoGreaterThan(this.fastCeil(initialCapacity * OCCUPIED_DATA_RATIO));
        this.allocateTable(capacity);
    }

    private int smallestPowerOfTwoGreaterThan(int n)
    {
        return n > 1 ? Integer.highestOneBit(n - 1) << 1 : 1;
    }

    public ShortIntHashMap(ShortIntMap map)
    {
        this(Math.max(map.size(), DEFAULT_INITIAL_CAPACITY));
        this.putAll(map);
    }

    private int fastCeil(float v)
    {
        int possibleResult = (int) v;
        if (v - possibleResult > 0.0F)
        {
            possibleResult++;
        }
        return possibleResult;
    }

    public static ShortIntHashMap newWithKeysValues(short key1, int value1)
    {
        return new ShortIntHashMap(1).withKeyValue(key1, value1);
    }

    public static ShortIntHashMap newWithKeysValues(short key1, int value1, short key2, int value2)
    {
        return new ShortIntHashMap(2).withKeysValues(key1, value1, key2, value2);
    }

    public static ShortIntHashMap newWithKeysValues(short key1, int value1, short key2, int value2, short key3, int value3)
    {
        return new ShortIntHashMap(3).withKeysValues(key1, value1, key2, value2, key3, value3);
    }

    public static ShortIntHashMap newWithKeysValues(short key1, int value1, short key2, int value2, short key3, int value3, short key4, int value4)
    {
        return new ShortIntHashMap(4).withKeysValues(key1, value1, key2, value2, key3, value3, key4, value4);
    }

    @Override
    public boolean equals(Object obj)
    {
        if (this == obj)
        {
            return true;
        }

        if (!(obj instanceof ShortIntMap))
        {
            return false;
        }

        ShortIntMap other = (ShortIntMap) obj;

        if (this.size() != other.size())
        {
            return false;
        }

        if (this.sentinelValues == null)
        {
            if (other.containsKey(EMPTY_KEY) || other.containsKey(REMOVED_KEY))
            {
                return false;
            }
        }
        else
        {
            if (this.sentinelValues.containsZeroKey && (!other.containsKey(EMPTY_KEY) || this.sentinelValues.zeroValue != other.getOrThrow(EMPTY_KEY)))
            {
                return false;
            }

            if (this.sentinelValues.containsOneKey && (!other.containsKey(REMOVED_KEY) || this.sentinelValues.oneValue != other.getOrThrow(REMOVED_KEY)))
            {
                return false;
            }
        }

        for (int i = 0; i < this.keys.length; i++)
        {
            short key = this.keys[i];
            if (isNonSentinel(key) && (!other.containsKey(key) || this.values[i] != other.getOrThrow(key)))
            {
                return false;
            }
        }
        return true;
    }

    @Override
    public int hashCode()
    {
        int result = 0;

        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey)
            {
                result += (int) EMPTY_KEY ^ this.sentinelValues.zeroValue;
            }
            if (this.sentinelValues.containsOneKey)
            {
                result += (int) REMOVED_KEY ^ this.sentinelValues.oneValue;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]))
            {
                result += (int) this.keys[i] ^ this.values[i];
            }
        }

        return result;
    }

    @Override
    public String toString()
    {
        StringBuilder appendable = new StringBuilder();

        appendable.append("{");

        boolean first = true;

        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey)
            {
                appendable.append(String.valueOf(EMPTY_KEY)).append("=").append(String.valueOf(this.sentinelValues.zeroValue));
                first = false;
            }
            if (this.sentinelValues.containsOneKey)
            {
                if (!first)
                {
                    appendable.append(", ");
                }
                appendable.append(String.valueOf(REMOVED_KEY)).append("=").append(String.valueOf(this.sentinelValues.oneValue));
                first = false;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            short key = this.keys[i];
            if (isNonSentinel(key))
            {
                if (!first)
                {
                    appendable.append(", ");
                }
                appendable.append(String.valueOf(key)).append("=").append(String.valueOf(this.values[i]));
                first = false;
            }
        }
        appendable.append("}");

        return appendable.toString();
    }

    public int size()
    {
        return this.occupiedWithData + (this.sentinelValues == null ? 0 : this.sentinelValues.size());
    }

    public boolean isEmpty()
    {
        return this.occupiedWithData == 0 && (this.sentinelValues == null || this.sentinelValues.size() == 0);
    }

    public boolean notEmpty()
    {
        return this.occupiedWithData != 0 || (this.sentinelValues != null && this.sentinelValues.size() != 0);
    }

    public String makeString()
    {
        return this.makeString(", ");
    }

    public String makeString(String separator)
    {
        return this.makeString("", separator, "");
    }

    public String makeString(String start, String separator, String end)
    {
        Appendable stringBuilder = new StringBuilder();
        this.appendString(stringBuilder, start, separator, end);
        return stringBuilder.toString();
    }

    public void appendString(Appendable appendable)
    {
        this.appendString(appendable, ", ");
    }

    public void appendString(Appendable appendable, String separator)
    {
        this.appendString(appendable, "", separator, "");
    }

    public void appendString(Appendable appendable, String start, String separator, String end)
    {
        try
        {
            appendable.append(start);

            boolean first = true;

            if (this.sentinelValues != null)
            {
                if (this.sentinelValues.containsZeroKey)
                {
                    appendable.append(String.valueOf(this.sentinelValues.zeroValue));
                    first = false;
                }
                if (this.sentinelValues.containsOneKey)
                {
                    if (!first)
                    {
                        appendable.append(separator);
                    }
                    appendable.append(String.valueOf(this.sentinelValues.oneValue));
                    first = false;
                }
            }
            for (int i = 0; i < this.keys.length; i++)
            {
                short key = this.keys[i];
                if (isNonSentinel(key))
                {
                    if (!first)
                    {
                        appendable.append(separator);
                    }
                    appendable.append(String.valueOf(this.values[i]));
                    first = false;
                }
            }
            appendable.append(end);
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }
    }

    public IntIterator intIterator()
    {
        return new InternalIntIterator();
    }

    public int[] toArray()
    {
        int[] array = new int[this.size()];
        int index = 0;

        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey)
            {
                array[index] = this.sentinelValues.zeroValue;
                index++;
            }
            if (this.sentinelValues.containsOneKey)
            {
                array[index] = this.sentinelValues.oneValue;
                index++;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]))
            {
                array[index] = this.values[i];
                index++;
            }
        }

        return array;
    }

    public boolean contains(int value)
    {
        return this.containsValue(value);
    }

    public boolean containsAll(int... source)
    {
        for (int each : source)
        {
            if (!this.contains(each))
            {
                return false;
            }
        }
        return true;
    }

    public boolean containsAll(IntIterable source)
    {
        return source.allSatisfy(new IntPredicate()
        {
            public boolean accept(int value)
            {
                return ShortIntHashMap.this.contains(value);
            }
        });
    }

    public void forEach(IntProcedure procedure)
    {
        this.forEachValue(procedure);
    }

    public MutableIntCollection select(IntPredicate predicate)
    {
        IntArrayList result = new IntArrayList();

        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue))
            {
                result.add(this.sentinelValues.zeroValue);
            }
            if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue))
            {
                result.add(this.sentinelValues.oneValue);
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i]))
            {
                result.add(this.values[i]);
            }
        }

        return result;
    }

    public MutableIntCollection reject(IntPredicate predicate)
    {
        IntArrayList result = new IntArrayList();
        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey && !predicate.accept(this.sentinelValues.zeroValue))
            {
                result.add(this.sentinelValues.zeroValue);
            }
            if (this.sentinelValues.containsOneKey && !predicate.accept(this.sentinelValues.oneValue))
            {
                result.add(this.sentinelValues.oneValue);
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]) && !predicate.accept(this.values[i]))
            {
                result.add(this.values[i]);
            }
        }
        return result;
    }

    public  MutableCollection collect(IntToObjectFunction function)
    {
        FastList target = FastList.newList(this.size());
        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey)
            {
                target.add(function.valueOf(this.sentinelValues.zeroValue));
            }
            if (this.sentinelValues.containsOneKey)
            {
                target.add(function.valueOf(this.sentinelValues.oneValue));
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]))
            {
                target.add(function.valueOf(this.values[i]));
            }
        }
        return target;
    }

    public int detectIfNone(IntPredicate predicate, int value)
    {
        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue))
            {
                return this.sentinelValues.zeroValue;
            }
            if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue))
            {
                return this.sentinelValues.oneValue;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i]))
            {
                return this.values[i];
            }
        }
        return value;
    }

    public int count(IntPredicate predicate)
    {
        int count = 0;
        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue))
            {
                count++;
            }
            if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue))
            {
                count++;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i]))
            {
                count++;
            }
        }
        return count;
    }

    public boolean anySatisfy(IntPredicate predicate)
    {
        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue))
            {
                return true;
            }
            if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue))
            {
                return true;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i]))
            {
                return true;
            }
        }
        return false;
    }

    public boolean allSatisfy(IntPredicate predicate)
    {
        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey && !predicate.accept(this.sentinelValues.zeroValue))
            {
                return false;
            }
            if (this.sentinelValues.containsOneKey && !predicate.accept(this.sentinelValues.oneValue))
            {
                return false;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]) && !predicate.accept(this.values[i]))
            {
                return false;
            }
        }
        return true;
    }

    public boolean noneSatisfy(IntPredicate predicate)
    {
        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue))
            {
                return false;
            }
            if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue))
            {
                return false;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i]))
            {
                return false;
            }
        }
        return true;
    }

    public  V injectInto(V injectedValue, ObjectIntToObjectFunction function)
    {
        V result = injectedValue;

        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey)
            {
                result = function.valueOf(result, this.sentinelValues.zeroValue);
            }
            if (this.sentinelValues.containsOneKey)
            {
                result = function.valueOf(result, this.sentinelValues.oneValue);
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]))
            {
                result = function.valueOf(result, this.values[i]);
            }
        }

        return result;
    }

    public MutableIntList toList()
    {
        return IntArrayList.newList(this);
    }

    public MutableIntSet toSet()
    {
        return IntHashSet.newSet(this);
    }

    public MutableIntBag toBag()
    {
        return IntHashBag.newBag(this);
    }

    public LazyIntIterable asLazy()
    {
        return new LazyIntIterableAdapter(this);
    }

    public void clear()
    {
        this.sentinelValues = null;
        this.occupiedWithData = 0;
        this.occupiedWithSentinels = 0;
        Arrays.fill(this.keys, EMPTY_KEY);
        Arrays.fill(this.values, EMPTY_VALUE);
    }

    public void put(short key, int value)
    {
        if (isEmptyKey(key))
        {
            if (this.sentinelValues == null)
            {
                this.sentinelValues = new SentinelValues();
            }
            this.addEmptyKeyValue(value);
            return;
        }

        if (isRemovedKey(key))
        {
            if (this.sentinelValues == null)
            {
                this.sentinelValues = new SentinelValues();
            }
            this.addRemovedKeyValue(value);
            return;
        }

        int index = this.probe(key);

        if (this.keys[index] == key)
        {
            // key already present in map
            this.values[index] = value;
            return;
        }

        this.addKeyValueAtIndex(key, value, index);
    }

    public void putAll(ShortIntMap map)
    {
        map.forEachKeyValue(new ShortIntProcedure()
        {
            public void value(short key, int value)
            {
                ShortIntHashMap.this.put(key, value);
            }
        });
    }

    public void removeKey(short key)
    {
        if (isEmptyKey(key))
        {
            if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey)
            {
                return;
            }
            this.removeEmptyKey();
            return;
        }
        if (isRemovedKey(key))
        {
            if (this.sentinelValues == null || !this.sentinelValues.containsOneKey)
            {
                return;
            }
            this.removeRemovedKey();
            return;
        }
        int index = this.probe(key);
        if (this.keys[index] == key)
        {
            this.keys[index] = REMOVED_KEY;
            this.values[index] = EMPTY_VALUE;
            this.occupiedWithData--;
            this.occupiedWithSentinels++;
            if (this.occupiedWithSentinels > this.maxOccupiedWithSentinels())
            {
                this.rehash();
            }
        }
    }

    public void remove(short key)
    {
        this.removeKey(key);
    }

    public int removeKeyIfAbsent(short key, int value)
    {
        if (isEmptyKey(key))
        {
            if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey)
            {
                return value;
            }
            int oldValue = this.sentinelValues.zeroValue;
            this.removeEmptyKey();
            return oldValue;
        }
        if (isRemovedKey(key))
        {
            if (this.sentinelValues == null || !this.sentinelValues.containsOneKey)
            {
                return value;
            }
            int oldValue = this.sentinelValues.oneValue;
            this.removeRemovedKey();
            return oldValue;
        }
        int index = this.probe(key);
        if (this.keys[index] == key)
        {
            this.keys[index] = REMOVED_KEY;
            int oldValue = this.values[index];
            this.values[index] = EMPTY_VALUE;
            this.occupiedWithData--;
            this.occupiedWithSentinels++;
            if (this.occupiedWithSentinels > this.maxOccupiedWithSentinels())
            {
                this.rehash();
            }

            return oldValue;
        }
        return value;
    }

    public int getIfAbsentPut(short key, int value)
    {
        if (isEmptyKey(key))
        {
            if (this.sentinelValues == null)
            {
                this.sentinelValues = new SentinelValues();
                this.addEmptyKeyValue(value);
                return value;
            }
            if (this.sentinelValues.containsZeroKey)
            {
                return this.sentinelValues.zeroValue;
            }
            this.addEmptyKeyValue(value);
            return value;
        }
        if (isRemovedKey(key))
        {
            if (this.sentinelValues == null)
            {
                this.sentinelValues = new SentinelValues();
                this.addRemovedKeyValue(value);
                return value;
            }
            if (this.sentinelValues.containsOneKey)
            {
                return this.sentinelValues.oneValue;
            }
            this.addRemovedKeyValue(value);
            return value;
        }
        int index = this.probe(key);
        if (this.keys[index] == key)
        {
            return this.values[index];
        }
        this.addKeyValueAtIndex(key, value, index);
        return value;
    }

    public int getIfAbsentPut(short key, IntFunction0 function)
    {
        if (isEmptyKey(key))
        {
            if (this.sentinelValues == null)
            {
                int value = function.value();
                this.sentinelValues = new SentinelValues();
                this.addEmptyKeyValue(value);
                return value;
            }
            if (this.sentinelValues.containsZeroKey)
            {
                return this.sentinelValues.zeroValue;
            }
            int value = function.value();
            this.addEmptyKeyValue(value);
            return value;
        }
        if (isRemovedKey(key))
        {
            if (this.sentinelValues == null)
            {
                int value = function.value();
                this.sentinelValues = new SentinelValues();
                this.addRemovedKeyValue(value);
                return value;
            }
            if (this.sentinelValues.containsOneKey)
            {
                return this.sentinelValues.oneValue;
            }
            int value = function.value();
            this.addRemovedKeyValue(value);
            return value;
        }
        int index = this.probe(key);
        if (this.keys[index] == key)
        {
            return this.values[index];
        }
        int value = function.value();
        this.addKeyValueAtIndex(key, value, index);
        return value;
    }

    public 

int getIfAbsentPutWith(short key, IntFunction function, P parameter) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { int value = function.intValueOf(parameter); this.sentinelValues = new SentinelValues(); this.addEmptyKeyValue(value); return value; } if (this.sentinelValues.containsZeroKey) { return this.sentinelValues.zeroValue; } int value = function.intValueOf(parameter); this.addEmptyKeyValue(value); return value; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { int value = function.intValueOf(parameter); this.sentinelValues = new SentinelValues(); this.addRemovedKeyValue(value); return value; } if (this.sentinelValues.containsOneKey) { return this.sentinelValues.oneValue; } int value = function.intValueOf(parameter); this.addRemovedKeyValue(value); return value; } int index = this.probe(key); if (this.keys[index] == key) { return this.values[index]; } int value = function.intValueOf(parameter); this.addKeyValueAtIndex(key, value, index); return value; } public int getIfAbsentPutWithKey(short key, ShortToIntFunction function) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { int value = function.valueOf(key); this.sentinelValues = new SentinelValues(); this.addEmptyKeyValue(value); return value; } if (this.sentinelValues.containsZeroKey) { return this.sentinelValues.zeroValue; } int value = function.valueOf(key); this.addEmptyKeyValue(value); return value; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { int value = function.valueOf(key); this.sentinelValues = new SentinelValues(); this.addRemovedKeyValue(value); return value; } if (this.sentinelValues.containsOneKey) { return this.sentinelValues.oneValue; } int value = function.valueOf(key); this.addRemovedKeyValue(value); return value; } int index = this.probe(key); if (this.keys[index] == key) { return this.values[index]; } int value = function.valueOf(key); this.addKeyValueAtIndex(key, value, index); return value; } public int addToValue(short key, int toBeAdded) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.addEmptyKeyValue(toBeAdded); } else if (this.sentinelValues.containsZeroKey) { this.sentinelValues.zeroValue += toBeAdded; } else { this.addEmptyKeyValue(toBeAdded); } return this.sentinelValues.zeroValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.addRemovedKeyValue(toBeAdded); } else if (this.sentinelValues.containsOneKey) { this.sentinelValues.oneValue += toBeAdded; } else { this.addRemovedKeyValue(toBeAdded); } return this.sentinelValues.oneValue; } int index = this.probe(key); if (this.keys[index] == key) { this.values[index] += toBeAdded; return this.values[index]; } this.addKeyValueAtIndex(key, toBeAdded, index); return this.values[index]; } private void addKeyValueAtIndex(short key, int value, int index) { if (this.keys[index] == REMOVED_KEY) { this.occupiedWithSentinels--; } this.keys[index] = key; this.values[index] = value; this.occupiedWithData++; if (this.occupiedWithData > this.maxOccupiedWithData()) { this.rehashAndGrow(); } } private void addEmptyKeyValue(int value) { this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; } private void removeEmptyKey() { if (this.sentinelValues.containsOneKey) { this.sentinelValues.containsZeroKey = false; this.sentinelValues.zeroValue = EMPTY_VALUE; } else { this.sentinelValues = null; } } private void addRemovedKeyValue(int value) { this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; } private void removeRemovedKey() { if (this.sentinelValues.containsZeroKey) { this.sentinelValues.containsOneKey = false; this.sentinelValues.oneValue = EMPTY_VALUE; } else { this.sentinelValues = null; } } public int updateValue(short key, int initialValueIfAbsent, IntToIntFunction function) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.addEmptyKeyValue(function.valueOf(initialValueIfAbsent)); } else if (this.sentinelValues.containsZeroKey) { this.sentinelValues.zeroValue = function.valueOf(this.sentinelValues.zeroValue); } else { this.addEmptyKeyValue(function.valueOf(initialValueIfAbsent)); } return this.sentinelValues.zeroValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.addRemovedKeyValue(function.valueOf(initialValueIfAbsent)); } else if (this.sentinelValues.containsOneKey) { this.sentinelValues.oneValue = function.valueOf(this.sentinelValues.oneValue); } else { this.addRemovedKeyValue(function.valueOf(initialValueIfAbsent)); } return this.sentinelValues.oneValue; } int index = this.probe(key); if (this.keys[index] == key) { this.values[index] = function.valueOf(this.values[index]); return this.values[index]; } int value = function.valueOf(initialValueIfAbsent); this.addKeyValueAtIndex(key, value, index); return value; } public ShortIntHashMap withKeyValue(short key1, int value1) { this.put(key1, value1); return this; } public ShortIntHashMap withKeysValues(short key1, int value1, short key2, int value2) { this.put(key1, value1); this.put(key2, value2); return this; } public ShortIntHashMap withKeysValues(short key1, int value1, short key2, int value2, short key3, int value3) { this.put(key1, value1); this.put(key2, value2); this.put(key3, value3); return this; } public ShortIntHashMap withKeysValues(short key1, int value1, short key2, int value2, short key3, int value3, short key4, int value4) { this.put(key1, value1); this.put(key2, value2); this.put(key3, value3); this.put(key4, value4); return this; } public ShortIntHashMap withoutKey(short key) { this.removeKey(key); return this; } public ShortIntHashMap withoutAllKeys(ShortIterable keys) { keys.forEach(new ShortProcedure() { public void value(short key) { ShortIntHashMap.this.removeKey(key); } }); return this; } public MutableShortIntMap asUnmodifiable() { return new UnmodifiableShortIntMap(this); } public MutableShortIntMap asSynchronized() { return new SynchronizedShortIntMap(this); } public ImmutableShortIntMap toImmutable() { return ShortIntMaps.immutable.ofAll(this); } public int get(short key) { return this.getIfAbsent(key, EMPTY_VALUE); } public int getIfAbsent(short key, int ifAbsent) { if (isEmptyKey(key)) { if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey) { return ifAbsent; } return this.sentinelValues.zeroValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null || !this.sentinelValues.containsOneKey) { return ifAbsent; } return this.sentinelValues.oneValue; } int index = this.probe(key); if (this.keys[index] == key) { return this.values[index]; } return ifAbsent; } public int getOrThrow(short key) { if (isEmptyKey(key)) { if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey) { throw new IllegalStateException("Key " + key + " not present."); } return this.sentinelValues.zeroValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null || !this.sentinelValues.containsOneKey) { throw new IllegalStateException("Key " + key + " not present."); } return this.sentinelValues.oneValue; } int index = this.probe(key); if (isNonSentinel(this.keys[index])) { return this.values[index]; } throw new IllegalStateException("Key " + key + " not present."); } public boolean containsKey(short key) { if (isEmptyKey(key)) { return this.sentinelValues != null && this.sentinelValues.containsZeroKey; } if (isRemovedKey(key)) { return this.sentinelValues != null && this.sentinelValues.containsOneKey; } return this.keys[this.probe(key)] == key; } public boolean containsValue(int value) { if (this.sentinelValues != null && this.sentinelValues.containsValue(value)) { return true; } for (int i = 0; i < this.values.length; i++) { if (isNonSentinel(this.keys[i]) && this.values[i] == value) { return true; } } return false; } public void forEachValue(IntProcedure procedure) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { procedure.value(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { procedure.value(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { procedure.value(this.values[i]); } } } public void forEachKey(ShortProcedure procedure) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { procedure.value(EMPTY_KEY); } if (this.sentinelValues.containsOneKey) { procedure.value(REMOVED_KEY); } } for (short key : this.keys) { if (isNonSentinel(key)) { procedure.value(key); } } } public void forEachKeyValue(ShortIntProcedure procedure) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { procedure.value(EMPTY_KEY, this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { procedure.value(REMOVED_KEY, this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { procedure.value(this.keys[i], this.values[i]); } } } public LazyShortIterable keysView() { return new KeysView(); } public RichIterable keyValuesView() { return new KeyValuesView(); } public ShortIntHashMap select(ShortIntPredicate predicate) { ShortIntHashMap result = new ShortIntHashMap(); if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY, this.sentinelValues.zeroValue)) { result.put(EMPTY_KEY, this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY, this.sentinelValues.oneValue)) { result.put(REMOVED_KEY, this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.keys[i], this.values[i])) { result.put(this.keys[i], this.values[i]); } } return result; } public ShortIntHashMap reject(ShortIntPredicate predicate) { ShortIntHashMap result = new ShortIntHashMap(); if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && !predicate.accept(EMPTY_KEY, this.sentinelValues.zeroValue)) { result.put(EMPTY_KEY, this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey && !predicate.accept(REMOVED_KEY, this.sentinelValues.oneValue)) { result.put(REMOVED_KEY, this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && !predicate.accept(this.keys[i], this.values[i])) { result.put(this.keys[i], this.values[i]); } } return result; } public long sum() { long result = 0L; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { result += this.sentinelValues.zeroValue; } if (this.sentinelValues.containsOneKey) { result += this.sentinelValues.oneValue; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { result += this.values[i]; } } return result; } public int max() { if (this.isEmpty()) { throw new NoSuchElementException(); } IntIterator iterator = this.intIterator(); int max = iterator.next(); while (iterator.hasNext()) { int value = iterator.next(); if (max < value) { max = value; } } return max; } public int maxIfEmpty(int defaultValue) { if (this.isEmpty()) { return defaultValue; } return this.max(); } public int min() { if (this.isEmpty()) { throw new NoSuchElementException(); } IntIterator iterator = this.intIterator(); int min = iterator.next(); while (iterator.hasNext()) { int value = iterator.next(); if (value < min) { min = value; } } return min; } public int minIfEmpty(int defaultValue) { if (this.isEmpty()) { return defaultValue; } return this.min(); } public double average() { if (this.isEmpty()) { throw new ArithmeticException(); } return (double) this.sum() / (double) this.size(); } public double median() { if (this.isEmpty()) { throw new ArithmeticException(); } int[] sortedArray = this.toSortedArray(); int middleIndex = sortedArray.length >> 1; if (sortedArray.length > 1 && (sortedArray.length & 1) == 0) { int first = sortedArray[middleIndex]; int second = sortedArray[middleIndex - 1]; return ((double) first + (double) second) / 2.0; } return (double) sortedArray[middleIndex]; } public int[] toSortedArray() { int[] array = this.toArray(); Arrays.sort(array); return array; } public MutableIntList toSortedList() { return IntArrayList.newList(this).sortThis(); } public void writeExternal(ObjectOutput out) throws IOException { out.writeInt(this.size()); if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { out.writeShort(EMPTY_KEY); out.writeInt(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { out.writeShort(REMOVED_KEY); out.writeInt(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { out.writeShort(this.keys[i]); out.writeInt(this.values[i]); } } } public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { int size = in.readInt(); for (int i = 0; i < size; i++) { this.put(in.readShort(), in.readInt()); } } /** * Rehashes every element in the set into a new backing table of the smallest possible size and eliminating removed sentinels. */ public void compact() { this.rehash(this.smallestPowerOfTwoGreaterThan(this.size())); } private void rehash() { this.rehash(this.keys.length); } private void rehashAndGrow() { this.rehash(this.keys.length << 1); } private void rehash(int newCapacity) { int oldLength = this.keys.length; short[] old = this.keys; int[] oldValues = this.values; this.allocateTable(newCapacity); this.occupiedWithData = 0; this.occupiedWithSentinels = 0; for (int i = 0; i < oldLength; i++) { if (isNonSentinel(old[i])) { this.put(old[i], oldValues[i]); } } } // exposed for testing int probe(short element) { int index = this.spread(element); short keyAtIndex = this.keys[index]; if (keyAtIndex == element || keyAtIndex == EMPTY_KEY) { return index; } int removedIndex = keyAtIndex == REMOVED_KEY ? index : -1; int nextIndex = index; int probe = 17; // loop until an empty slot is reached while (true) { // Probe algorithm: 17*n*(n+1)/2 where n = number of collisions nextIndex += probe; probe += 17; nextIndex &= this.keys.length - 1; if (this.keys[nextIndex] == element) { return nextIndex; } if (this.keys[nextIndex] == REMOVED_KEY) { if (removedIndex == -1) { removedIndex = nextIndex; } } else if (this.keys[nextIndex] == EMPTY_KEY) { return removedIndex == -1 ? nextIndex : removedIndex; } } } // exposed for testing int spread(short element) { int code = (int) element; code ^= 61 ^ (code >> 16); code += code << 3; code ^= code >> 4; code *= 0x27d4eb2d; code ^= code >> 15; return code & (this.keys.length - 1); } private void allocateTable(int sizeToAllocate) { this.keys = new short[sizeToAllocate]; this.values = new int[sizeToAllocate]; } private static boolean isEmptyKey(short key) { return key == EMPTY_KEY; } private static boolean isRemovedKey(short key) { return key == REMOVED_KEY; } private static boolean isNonSentinel(short key) { return !isEmptyKey(key) && !isRemovedKey(key); } private int maxOccupiedWithData() { int capacity = this.keys.length; // need at least one free slot for open addressing return Math.min(capacity - 1, capacity / OCCUPIED_DATA_RATIO); } private int maxOccupiedWithSentinels() { return this.keys.length / OCCUPIED_SENTINEL_RATIO; } private static final class SentinelValues { private boolean containsZeroKey; private boolean containsOneKey; private int zeroValue; private int oneValue; public int size() { return (this.containsZeroKey ? 1 : 0) + (this.containsOneKey ? 1 : 0); } public boolean containsValue(int value) { boolean valueEqualsZeroValue = this.containsZeroKey && this.zeroValue == value; boolean valueEqualsOneValue = this.containsOneKey && this.oneValue == value; return valueEqualsZeroValue || valueEqualsOneValue; } } private class InternalIntIterator implements IntIterator { private int count; private int position; private boolean handledZero; private boolean handledOne; public boolean hasNext() { return this.count < ShortIntHashMap.this.size(); } public int next() { if (!this.hasNext()) { throw new NoSuchElementException("next() called, but the iterator is exhausted"); } this.count++; if (!this.handledZero) { this.handledZero = true; if (ShortIntHashMap.this.containsKey(EMPTY_KEY)) { return ShortIntHashMap.this.get(EMPTY_KEY); } } if (!this.handledOne) { this.handledOne = true; if (ShortIntHashMap.this.containsKey(REMOVED_KEY)) { return ShortIntHashMap.this.get(REMOVED_KEY); } } short[] keys = ShortIntHashMap.this.keys; while (!isNonSentinel(keys[this.position])) { this.position++; } int result = ShortIntHashMap.this.values[this.position]; this.position++; return result; } } private class KeysView extends AbstractLazyShortIterable { public ShortIterator shortIterator() { return new KeySetIterator(); } public void forEach(ShortProcedure procedure) { ShortIntHashMap.this.forEachKey(procedure); } } private class KeySetIterator implements ShortIterator { private int count; private int position; private boolean handledZero; private boolean handledOne; public boolean hasNext() { return this.count < ShortIntHashMap.this.size(); } public short next() { if (!this.hasNext()) { throw new NoSuchElementException("next() called, but the iterator is exhausted"); } this.count++; if (!this.handledZero) { this.handledZero = true; if (ShortIntHashMap.this.containsKey(EMPTY_KEY)) { return EMPTY_KEY; } } if (!this.handledOne) { this.handledOne = true; if (ShortIntHashMap.this.containsKey(REMOVED_KEY)) { return REMOVED_KEY; } } short[] keys = ShortIntHashMap.this.keys; while (!isNonSentinel(keys[this.position])) { this.position++; } short result = keys[this.position]; this.position++; return result; } } public MutableShortSet keySet() { return new KeySet(); } private class KeySet implements MutableShortSet { public ShortIterator shortIterator() { return new KeySetIterator(); } public void forEach(ShortProcedure procedure) { ShortIntHashMap.this.forEachKey(procedure); } public int count(ShortPredicate predicate) { int count = 0; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { count++; } if (ShortIntHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { count++; } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { count++; } } return count; } public boolean anySatisfy(ShortPredicate predicate) { if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { return true; } if (ShortIntHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { return true; } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { return true; } } return false; } public boolean allSatisfy(ShortPredicate predicate) { if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey && !predicate.accept(EMPTY_KEY)) { return false; } if (ShortIntHashMap.this.sentinelValues.containsOneKey && !predicate.accept(REMOVED_KEY)) { return false; } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key) && !predicate.accept(key)) { return false; } } return true; } public boolean noneSatisfy(ShortPredicate predicate) { if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { return false; } if (ShortIntHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { return false; } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { return false; } } return true; } public boolean add(short element) { throw new UnsupportedOperationException("Cannot call add() on " + this.getClass().getSimpleName()); } public boolean addAll(short... source) { throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName()); } public boolean addAll(ShortIterable source) { throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName()); } public boolean remove(short key) { int oldSize = ShortIntHashMap.this.size(); ShortIntHashMap.this.removeKey(key); return oldSize != ShortIntHashMap.this.size(); } public boolean removeAll(ShortIterable source) { int oldSize = ShortIntHashMap.this.size(); ShortIterator iterator = source.shortIterator(); while (iterator.hasNext()) { ShortIntHashMap.this.removeKey(iterator.next()); } return oldSize != ShortIntHashMap.this.size(); } public boolean removeAll(short... source) { int oldSize = ShortIntHashMap.this.size(); for (short item : source) { ShortIntHashMap.this.removeKey(item); } return oldSize != ShortIntHashMap.this.size(); } public boolean retainAll(ShortIterable source) { int oldSize = this.size(); final ShortSet sourceSet = source instanceof ShortSet ? (ShortSet) source : source.toSet(); ShortIntHashMap retained = ShortIntHashMap.this.select(new ShortIntPredicate() { public boolean accept(short key, int value) { return sourceSet.contains(key); } }); if (retained.size() != oldSize) { ShortIntHashMap.this.keys = retained.keys; ShortIntHashMap.this.values = retained.values; ShortIntHashMap.this.sentinelValues = retained.sentinelValues; ShortIntHashMap.this.occupiedWithData = retained.occupiedWithData; ShortIntHashMap.this.occupiedWithSentinels = retained.occupiedWithSentinels; return true; } return false; } public boolean retainAll(short... source) { return this.retainAll(ShortHashSet.newSetWith(source)); } public void clear() { ShortIntHashMap.this.clear(); } public MutableShortSet select(ShortPredicate predicate) { MutableShortSet result = new ShortHashSet(); if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { result.add(EMPTY_KEY); } if (ShortIntHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { result.add(REMOVED_KEY); } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { result.add(key); } } return result; } public MutableShortSet reject(ShortPredicate predicate) { MutableShortSet result = new ShortHashSet(); if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey && !predicate.accept(EMPTY_KEY)) { result.add(EMPTY_KEY); } if (ShortIntHashMap.this.sentinelValues.containsOneKey && !predicate.accept(REMOVED_KEY)) { result.add(REMOVED_KEY); } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key) && !predicate.accept(key)) { result.add(key); } } return result; } public MutableShortSet with(short element) { throw new UnsupportedOperationException("Cannot call with() on " + this.getClass().getSimpleName()); } public MutableShortSet without(short element) { throw new UnsupportedOperationException("Cannot call without() on " + this.getClass().getSimpleName()); } public MutableShortSet withAll(ShortIterable elements) { throw new UnsupportedOperationException("Cannot call withAll() on " + this.getClass().getSimpleName()); } public MutableShortSet withoutAll(ShortIterable elements) { throw new UnsupportedOperationException("Cannot call withoutAll() on " + this.getClass().getSimpleName()); } public short detectIfNone(ShortPredicate predicate, short ifNone) { if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { return EMPTY_KEY; } if (ShortIntHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { return REMOVED_KEY; } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { return key; } } return ifNone; } public MutableSet collect(ShortToObjectFunction function) { MutableSet result = Sets.mutable.with(); if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { result.add(function.valueOf(EMPTY_KEY)); } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { result.add(function.valueOf(REMOVED_KEY)); } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key)) { result.add(function.valueOf(key)); } } return result; } public MutableShortSet asUnmodifiable() { return UnmodifiableShortSet.of(this); } public MutableShortSet asSynchronized() { return SynchronizedShortSet.of(this); } public long sum() { long sum = 0L; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { sum += EMPTY_KEY; } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { sum += REMOVED_KEY; } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key)) { sum += key; } } return sum; } public short max() { if (ShortIntHashMap.this.isEmpty()) { throw new NoSuchElementException(); } short max = 0; boolean isMaxSet = false; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { max = EMPTY_KEY; isMaxSet = true; } if (ShortIntHashMap.this.sentinelValues.containsOneKey && (!isMaxSet || max < REMOVED_KEY)) { max = REMOVED_KEY; isMaxSet = true; } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { if (isNonSentinel(ShortIntHashMap.this.keys[i]) && (!isMaxSet || max < ShortIntHashMap.this.keys[i])) { max = ShortIntHashMap.this.keys[i]; isMaxSet = true; } } return max; } public short maxIfEmpty(short defaultValue) { if (ShortIntHashMap.this.isEmpty()) { return defaultValue; } return this.max(); } public short min() { if (ShortIntHashMap.this.isEmpty()) { throw new NoSuchElementException(); } short min = 0; boolean isMinSet = false; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { min = EMPTY_KEY; isMinSet = true; } if (ShortIntHashMap.this.sentinelValues.containsOneKey && (!isMinSet || REMOVED_KEY < min)) { min = REMOVED_KEY; isMinSet = true; } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { if (isNonSentinel(ShortIntHashMap.this.keys[i]) && (!isMinSet || ShortIntHashMap.this.keys[i] < min)) { min = ShortIntHashMap.this.keys[i]; isMinSet = true; } } return min; } public short minIfEmpty(short defaultValue) { if (ShortIntHashMap.this.isEmpty()) { return defaultValue; } return this.min(); } public double average() { if (this.isEmpty()) { throw new ArithmeticException(); } return (double) this.sum() / (double) this.size(); } public double median() { if (this.isEmpty()) { throw new ArithmeticException(); } short[] sortedArray = this.toSortedArray(); int middleIndex = sortedArray.length >> 1; if (sortedArray.length > 1 && (sortedArray.length & 1) == 0) { short first = sortedArray[middleIndex]; short second = sortedArray[middleIndex - 1]; return ((double) first + (double) second) / 2.0; } return (double) sortedArray[middleIndex]; } public short[] toSortedArray() { short[] array = this.toArray(); Arrays.sort(array); return array; } public MutableShortList toSortedList() { return ShortArrayList.newList(this).sortThis(); } public short[] toArray() { int size = ShortIntHashMap.this.size(); final short[] result = new short[size]; ShortIntHashMap.this.forEachKey(new ShortProcedure() { private int index; public void value(short each) { result[this.index] = each; this.index++; } }); return result; } public boolean contains(short value) { return ShortIntHashMap.this.containsKey(value); } public boolean containsAll(short... source) { for (short item : source) { if (!ShortIntHashMap.this.containsKey(item)) { return false; } } return true; } public boolean containsAll(ShortIterable source) { ShortIterator iterator = source.shortIterator(); while (iterator.hasNext()) { if (!ShortIntHashMap.this.containsKey(iterator.next())) { return false; } } return true; } public MutableShortList toList() { return ShortArrayList.newList(this); } public MutableShortSet toSet() { return ShortHashSet.newSet(this); } public MutableShortBag toBag() { return ShortHashBag.newBag(this); } public LazyShortIterable asLazy() { return new LazyShortIterableAdapter(this); } public T injectInto(T injectedValue, ObjectShortToObjectFunction function) { T result = injectedValue; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { result = function.valueOf(result, EMPTY_KEY); } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { result = function.valueOf(result, REMOVED_KEY); } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { if (isNonSentinel(ShortIntHashMap.this.keys[i])) { result = function.valueOf(result, ShortIntHashMap.this.keys[i]); } } return result; } public ShortSet freeze() { throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".freeze() not implemented yet"); } public ImmutableShortSet toImmutable() { return ShortSets.immutable.withAll(this); } public int size() { return ShortIntHashMap.this.size(); } public boolean isEmpty() { return ShortIntHashMap.this.isEmpty(); } public boolean notEmpty() { return ShortIntHashMap.this.notEmpty(); } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (!(obj instanceof ShortSet)) { return false; } ShortSet other = (ShortSet) obj; return this.size() == other.size() && this.containsAll(other.toArray()); } @Override public int hashCode() { int result = 0; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { result += (int) EMPTY_KEY; } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { result += (int) REMOVED_KEY; } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { if (isNonSentinel(ShortIntHashMap.this.keys[i])) { result += (int) ShortIntHashMap.this.keys[i]; } } return result; } @Override public String toString() { return this.makeString("[", ", ", "]"); } public String makeString() { return this.makeString(", "); } public String makeString(String separator) { return this.makeString("", separator, ""); } public String makeString(String start, String separator, String end) { Appendable stringBuilder = new StringBuilder(); this.appendString(stringBuilder, start, separator, end); return stringBuilder.toString(); } public void appendString(Appendable appendable) { this.appendString(appendable, ", "); } public void appendString(Appendable appendable, String separator) { this.appendString(appendable, "", separator, ""); } public void appendString(Appendable appendable, String start, String separator, String end) { try { appendable.append(start); boolean first = true; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { appendable.append(String.valueOf(EMPTY_KEY)); first = false; } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { if (!first) { appendable.append(separator); } appendable.append(String.valueOf(REMOVED_KEY)); first = false; } } for (short key : ShortIntHashMap.this.keys) { if (isNonSentinel(key)) { if (!first) { appendable.append(separator); } appendable.append(String.valueOf(key)); first = false; } } appendable.append(end); } catch (IOException e) { throw new RuntimeException(e); } } } public MutableIntCollection values() { return new ValuesCollection(); } private class ValuesCollection implements MutableIntCollection { public void clear() { ShortIntHashMap.this.clear(); } public MutableIntCollection select(IntPredicate predicate) { return ShortIntHashMap.this.select(predicate); } public MutableIntCollection reject(IntPredicate predicate) { return ShortIntHashMap.this.reject(predicate); } public int detectIfNone(IntPredicate predicate, int ifNone) { return ShortIntHashMap.this.detectIfNone(predicate, ifNone); } public MutableCollection collect(IntToObjectFunction function) { return ShortIntHashMap.this.collect(function); } public T injectInto(T injectedValue, ObjectIntToObjectFunction function) { return ShortIntHashMap.this.injectInto(injectedValue, function); } public long sum() { return ShortIntHashMap.this.sum(); } public int max() { return ShortIntHashMap.this.max(); } public int maxIfEmpty(int defaultValue) { return ShortIntHashMap.this.maxIfEmpty(defaultValue); } public int min() { return ShortIntHashMap.this.min(); } public int minIfEmpty(int defaultValue) { return ShortIntHashMap.this.minIfEmpty(defaultValue); } public double average() { return ShortIntHashMap.this.average(); } public double median() { return ShortIntHashMap.this.median(); } public int[] toSortedArray() { return ShortIntHashMap.this.toSortedArray(); } public MutableIntList toSortedList() { return ShortIntHashMap.this.toSortedList(); } public MutableIntCollection with(int element) { throw new UnsupportedOperationException("Cannot call with() on " + this.getClass().getSimpleName()); } public MutableIntCollection without(int element) { throw new UnsupportedOperationException("Cannot call without() on " + this.getClass().getSimpleName()); } public MutableIntCollection withAll(IntIterable elements) { throw new UnsupportedOperationException("Cannot call withAll() on " + this.getClass().getSimpleName()); } public MutableIntCollection withoutAll(IntIterable elements) { throw new UnsupportedOperationException("Cannot call withoutAll() on " + this.getClass().getSimpleName()); } public MutableIntCollection asUnmodifiable() { return UnmodifiableIntCollection.of(this); } public MutableIntCollection asSynchronized() { return SynchronizedIntCollection.of(this); } public ImmutableIntCollection toImmutable() { return IntLists.immutable.withAll(this); } public boolean contains(int value) { return ShortIntHashMap.this.containsValue(value); } public boolean containsAll(int... source) { return ShortIntHashMap.this.containsAll(source); } public boolean containsAll(IntIterable source) { return ShortIntHashMap.this.containsAll(source); } public MutableIntList toList() { return ShortIntHashMap.this.toList(); } public MutableIntSet toSet() { return ShortIntHashMap.this.toSet(); } public MutableIntBag toBag() { return ShortIntHashMap.this.toBag(); } public LazyIntIterable asLazy() { return new LazyIntIterableAdapter(this); } public boolean isEmpty() { return ShortIntHashMap.this.isEmpty(); } public boolean notEmpty() { return ShortIntHashMap.this.notEmpty(); } public String makeString() { return this.makeString(", "); } public String makeString(String separator) { return this.makeString("", separator, ""); } public String makeString(String start, String separator, String end) { Appendable stringBuilder = new StringBuilder(); this.appendString(stringBuilder, start, separator, end); return stringBuilder.toString(); } public void appendString(Appendable appendable) { this.appendString(appendable, ", "); } public void appendString(Appendable appendable, String separator) { this.appendString(appendable, "", separator, ""); } public void appendString(Appendable appendable, String start, String separator, String end) { try { appendable.append(start); boolean first = true; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { appendable.append(String.valueOf(ShortIntHashMap.this.sentinelValues.zeroValue)); first = false; } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { if (!first) { appendable.append(separator); } appendable.append(String.valueOf(ShortIntHashMap.this.sentinelValues.oneValue)); first = false; } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { short key = ShortIntHashMap.this.keys[i]; if (isNonSentinel(key)) { if (!first) { appendable.append(separator); } appendable.append(String.valueOf(ShortIntHashMap.this.values[i])); first = false; } } appendable.append(end); } catch (IOException e) { throw new RuntimeException(e); } } public IntIterator intIterator() { return ShortIntHashMap.this.intIterator(); } public void forEach(IntProcedure procedure) { ShortIntHashMap.this.forEach(procedure); } public int count(IntPredicate predicate) { return ShortIntHashMap.this.count(predicate); } public boolean anySatisfy(IntPredicate predicate) { return ShortIntHashMap.this.anySatisfy(predicate); } public boolean allSatisfy(IntPredicate predicate) { return ShortIntHashMap.this.allSatisfy(predicate); } public boolean noneSatisfy(IntPredicate predicate) { return ShortIntHashMap.this.noneSatisfy(predicate); } public boolean add(int element) { throw new UnsupportedOperationException("Cannot call add() on " + this.getClass().getSimpleName()); } public boolean addAll(int... source) { throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName()); } public boolean addAll(IntIterable source) { throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName()); } public boolean remove(int item) { int oldSize = ShortIntHashMap.this.size(); if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey && item == ShortIntHashMap.this.sentinelValues.zeroValue) { ShortIntHashMap.this.removeKey(EMPTY_KEY); } if (ShortIntHashMap.this.sentinelValues.containsOneKey && item == ShortIntHashMap.this.sentinelValues.oneValue) { ShortIntHashMap.this.removeKey(REMOVED_KEY); } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { if (isNonSentinel(ShortIntHashMap.this.keys[i]) && item == ShortIntHashMap.this.values[i]) { ShortIntHashMap.this.removeKey(ShortIntHashMap.this.keys[i]); } } return oldSize != ShortIntHashMap.this.size(); } public boolean removeAll(IntIterable source) { int oldSize = ShortIntHashMap.this.size(); IntIterator iterator = source.intIterator(); while (iterator.hasNext()) { this.remove(iterator.next()); } return oldSize != ShortIntHashMap.this.size(); } public boolean removeAll(int... source) { int oldSize = ShortIntHashMap.this.size(); for (int item : source) { this.remove(item); } return oldSize != ShortIntHashMap.this.size(); } public boolean retainAll(IntIterable source) { int oldSize = this.size(); final IntSet sourceSet = source instanceof IntSet ? (IntSet) source : source.toSet(); ShortIntHashMap retained = ShortIntHashMap.this.select(new ShortIntPredicate() { public boolean accept(short key, int value) { return sourceSet.contains(value); } }); if (retained.size() != oldSize) { ShortIntHashMap.this.keys = retained.keys; ShortIntHashMap.this.values = retained.values; ShortIntHashMap.this.sentinelValues = retained.sentinelValues; ShortIntHashMap.this.occupiedWithData = retained.occupiedWithData; ShortIntHashMap.this.occupiedWithSentinels = retained.occupiedWithSentinels; return true; } return false; } public boolean retainAll(int... source) { return this.retainAll(IntHashSet.newSetWith(source)); } public int size() { return ShortIntHashMap.this.size(); } public int[] toArray() { return ShortIntHashMap.this.toArray(); } } private class KeyValuesView extends AbstractLazyIterable { public void forEach(Procedure procedure) { if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { procedure.value(PrimitiveTuples.pair(EMPTY_KEY, ShortIntHashMap.this.sentinelValues.zeroValue)); } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { procedure.value(PrimitiveTuples.pair(REMOVED_KEY, ShortIntHashMap.this.sentinelValues.oneValue)); } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { if (isNonSentinel(ShortIntHashMap.this.keys[i])) { procedure.value(PrimitiveTuples.pair(ShortIntHashMap.this.keys[i], ShortIntHashMap.this.values[i])); } } } public void forEachWithIndex(ObjectIntProcedure objectIntProcedure) { int index = 0; if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { objectIntProcedure.value(PrimitiveTuples.pair(EMPTY_KEY, ShortIntHashMap.this.sentinelValues.zeroValue), index); index++; } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { objectIntProcedure.value(PrimitiveTuples.pair(REMOVED_KEY, ShortIntHashMap.this.sentinelValues.oneValue), index); index++; } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { if (isNonSentinel(ShortIntHashMap.this.keys[i])) { objectIntProcedure.value(PrimitiveTuples.pair(ShortIntHashMap.this.keys[i], ShortIntHashMap.this.values[i]), index); index++; } } } public

void forEachWith(Procedure2 procedure, P parameter) { if (ShortIntHashMap.this.sentinelValues != null) { if (ShortIntHashMap.this.sentinelValues.containsZeroKey) { procedure.value(PrimitiveTuples.pair(EMPTY_KEY, ShortIntHashMap.this.sentinelValues.zeroValue), parameter); } if (ShortIntHashMap.this.sentinelValues.containsOneKey) { procedure.value(PrimitiveTuples.pair(REMOVED_KEY, ShortIntHashMap.this.sentinelValues.oneValue), parameter); } } for (int i = 0; i < ShortIntHashMap.this.keys.length; i++) { if (isNonSentinel(ShortIntHashMap.this.keys[i])) { procedure.value(PrimitiveTuples.pair(ShortIntHashMap.this.keys[i], ShortIntHashMap.this.values[i]), parameter); } } } public Iterator iterator() { return new InternalKeyValuesIterator(); } public class InternalKeyValuesIterator implements Iterator { private int count; private int position; private boolean handledZero; private boolean handledOne; public ShortIntPair next() { if (!this.hasNext()) { throw new NoSuchElementException("next() called, but the iterator is exhausted"); } this.count++; if (!this.handledZero) { this.handledZero = true; if (ShortIntHashMap.this.containsKey(EMPTY_KEY)) { return PrimitiveTuples.pair(EMPTY_KEY, ShortIntHashMap.this.sentinelValues.zeroValue); } } if (!this.handledOne) { this.handledOne = true; if (ShortIntHashMap.this.containsKey(REMOVED_KEY)) { return PrimitiveTuples.pair(REMOVED_KEY, ShortIntHashMap.this.sentinelValues.oneValue); } } short[] keys = ShortIntHashMap.this.keys; while (!isNonSentinel(keys[this.position])) { this.position++; } ShortIntPair result = PrimitiveTuples.pair(keys[this.position], ShortIntHashMap.this.values[this.position]); this.position++; return result; } public void remove() { throw new UnsupportedOperationException("Cannot call remove() on " + this.getClass().getSimpleName()); } public boolean hasNext() { return this.count != ShortIntHashMap.this.size(); } } } }





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