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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.lang.reflect.Array;
import java.util.Arrays;
import java.util.Collection;
import java.util.Comparator;
import java.util.Iterator;
import java.util.NoSuchElementException;

import com.gs.collections.api.ByteIterable;
import com.gs.collections.api.LazyByteIterable;
import com.gs.collections.api.LazyIterable;
import com.gs.collections.api.RichIterable;
import com.gs.collections.api.bag.MutableBag;
import com.gs.collections.api.bag.sorted.MutableSortedBag;
import com.gs.collections.impl.bag.mutable.HashBag;
import com.gs.collections.impl.bag.sorted.mutable.TreeBag;
import com.gs.collections.api.bag.primitive.MutableByteBag;
import com.gs.collections.api.block.function.Function;
import com.gs.collections.api.block.function.Function0;
import com.gs.collections.api.block.function.Function2;
import com.gs.collections.api.block.function.primitive.BooleanFunction;
import com.gs.collections.api.block.function.primitive.ByteFunction;
import com.gs.collections.api.block.function.primitive.CharFunction;
import com.gs.collections.api.block.function.primitive.DoubleFunction;
import com.gs.collections.api.block.function.primitive.DoubleObjectToDoubleFunction;
import com.gs.collections.api.block.function.primitive.FloatFunction;
import com.gs.collections.api.block.function.primitive.FloatObjectToFloatFunction;
import com.gs.collections.api.block.function.primitive.IntFunction;
import com.gs.collections.api.block.function.primitive.IntObjectToIntFunction;
import com.gs.collections.api.block.function.primitive.ByteToObjectFunction;
import com.gs.collections.api.block.function.primitive.ObjectByteToObjectFunction;
import com.gs.collections.api.block.function.primitive.LongFunction;
import com.gs.collections.api.block.function.primitive.LongObjectToLongFunction;
import com.gs.collections.api.block.function.primitive.ShortFunction;
import com.gs.collections.api.block.predicate.Predicate;
import com.gs.collections.api.block.predicate.Predicate2;
import com.gs.collections.api.block.predicate.primitive.ByteObjectPredicate;
import com.gs.collections.api.block.predicate.primitive.BytePredicate;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.block.procedure.primitive.ByteObjectProcedure;
import com.gs.collections.api.block.procedure.primitive.ByteProcedure;
import com.gs.collections.api.collection.MutableCollection;
import com.gs.collections.api.collection.primitive.MutableBooleanCollection;
import com.gs.collections.api.collection.primitive.MutableByteCollection;
import com.gs.collections.api.collection.primitive.MutableCharCollection;
import com.gs.collections.api.collection.primitive.MutableDoubleCollection;
import com.gs.collections.api.collection.primitive.MutableFloatCollection;
import com.gs.collections.api.collection.primitive.MutableIntCollection;
import com.gs.collections.api.collection.primitive.MutableLongCollection;
import com.gs.collections.api.collection.primitive.MutableShortCollection;
import com.gs.collections.api.iterator.ByteIterator;
import com.gs.collections.api.iterator.MutableByteIterator;
import com.gs.collections.api.list.MutableList;
import com.gs.collections.api.list.primitive.MutableByteList;
import com.gs.collections.api.map.MutableMap;
import com.gs.collections.api.map.primitive.ObjectDoubleMap;
import com.gs.collections.api.map.primitive.ObjectLongMap;
import com.gs.collections.api.map.primitive.ByteObjectMap;
import com.gs.collections.api.map.primitive.ImmutableByteObjectMap;
import com.gs.collections.api.map.primitive.MutableByteObjectMap;
import com.gs.collections.api.map.sorted.MutableSortedMap;
import com.gs.collections.api.multimap.MutableMultimap;
import com.gs.collections.api.multimap.bag.MutableBagMultimap;
import com.gs.collections.api.partition.list.PartitionMutableList;
import com.gs.collections.api.partition.bag.PartitionMutableBag;
import com.gs.collections.impl.partition.bag.PartitionHashBag;
import com.gs.collections.api.set.MutableSet;
import com.gs.collections.api.set.primitive.ImmutableByteSet;
import com.gs.collections.api.set.primitive.ByteSet;
import com.gs.collections.api.set.primitive.MutableByteSet;
import com.gs.collections.api.set.sorted.MutableSortedSet;
import com.gs.collections.api.tuple.Pair;
import com.gs.collections.api.tuple.primitive.ByteObjectPair;
import com.gs.collections.impl.SpreadFunctions;
import com.gs.collections.impl.bag.mutable.primitive.ByteHashBag;
import com.gs.collections.impl.block.factory.Comparators;
import com.gs.collections.impl.block.factory.Functions0;
import com.gs.collections.impl.block.factory.Functions;
import com.gs.collections.impl.block.factory.Predicates;
import com.gs.collections.impl.block.factory.Procedures2;
import com.gs.collections.impl.block.factory.PrimitiveFunctions;
import com.gs.collections.impl.block.procedure.MapCollectProcedure;
import com.gs.collections.impl.block.procedure.MutatingAggregationProcedure;
import com.gs.collections.impl.block.procedure.NonMutatingAggregationProcedure;
import com.gs.collections.impl.block.procedure.PartitionProcedure;
import com.gs.collections.impl.block.procedure.SelectInstancesOfProcedure;
import com.gs.collections.impl.block.procedure.primitive.CollectBooleanProcedure;
import com.gs.collections.impl.block.procedure.primitive.CollectByteProcedure;
import com.gs.collections.impl.block.procedure.primitive.CollectCharProcedure;
import com.gs.collections.impl.block.procedure.primitive.CollectDoubleProcedure;
import com.gs.collections.impl.block.procedure.primitive.CollectFloatProcedure;
import com.gs.collections.impl.block.procedure.primitive.CollectIntProcedure;
import com.gs.collections.impl.block.procedure.primitive.CollectLongProcedure;
import com.gs.collections.impl.block.procedure.primitive.CollectShortProcedure;
import com.gs.collections.impl.factory.Bags;
import com.gs.collections.impl.factory.Lists;
import com.gs.collections.impl.factory.Sets;
import com.gs.collections.impl.factory.primitive.ByteSets;
import com.gs.collections.impl.iterator.UnmodifiableByteIterator;
import com.gs.collections.impl.lazy.AbstractLazyIterable;
import com.gs.collections.impl.lazy.primitive.AbstractLazyByteIterable;
import com.gs.collections.impl.lazy.primitive.LazyByteIterableAdapter;
import com.gs.collections.impl.list.mutable.FastList;
import com.gs.collections.impl.list.mutable.primitive.BooleanArrayList;
import com.gs.collections.impl.list.mutable.primitive.ByteArrayList;
import com.gs.collections.impl.list.mutable.primitive.CharArrayList;
import com.gs.collections.impl.list.mutable.primitive.DoubleArrayList;
import com.gs.collections.impl.list.mutable.primitive.FloatArrayList;
import com.gs.collections.impl.list.mutable.primitive.IntArrayList;
import com.gs.collections.impl.list.mutable.primitive.LongArrayList;
import com.gs.collections.impl.list.mutable.primitive.ShortArrayList;
import com.gs.collections.impl.map.mutable.UnifiedMap;
import com.gs.collections.impl.multimap.bag.HashBagMultimap;
import com.gs.collections.impl.map.sorted.mutable.TreeSortedMap;
import com.gs.collections.impl.multimap.list.FastListMultimap;
import com.gs.collections.impl.partition.list.PartitionFastList;
import com.gs.collections.impl.set.mutable.UnifiedSet;
import com.gs.collections.impl.set.mutable.primitive.ByteHashSet;
import com.gs.collections.impl.set.mutable.primitive.SynchronizedByteSet;
import com.gs.collections.impl.set.mutable.primitive.UnmodifiableByteSet;
import com.gs.collections.impl.set.sorted.mutable.TreeSortedSet;
import com.gs.collections.impl.tuple.primitive.PrimitiveTuples;
import com.gs.collections.impl.utility.Iterate;
import com.gs.collections.impl.utility.LazyIterate;
import com.gs.collections.impl.utility.internal.IterableIterate;
import com.gs.collections.impl.factory.primitive.ByteObjectMaps;

/**
 * This file was automatically generated from template file primitiveObjectHashMap.stg.
 *
 * @since 3.0.
 */
public class ByteObjectHashMap implements MutableByteObjectMap, Externalizable
{
    private static final long serialVersionUID = 1L;
    private static final int DEFAULT_INITIAL_CAPACITY = 8;
    private static final byte EMPTY_KEY = (byte) 0;
    private static final byte REMOVED_KEY = (byte) 1;
    private static final int OCCUPIED_DATA_RATIO = 2;
    private static final int OCCUPIED_SENTINEL_RATIO = 4;
    private static final int CACHE_LINE_SIZE = 64;
    private static final int KEY_SIZE = 1;
    private static final int INITIAL_LINEAR_PROBE = CACHE_LINE_SIZE / KEY_SIZE / 2; /* half a cache line */

    private byte[] keys;
    private V[] values;
    private int occupiedWithData;
    private int occupiedWithSentinels;

    private SentinelValues sentinelValues;

    private boolean copyKeysOnWrite = false;

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

    public ByteObjectHashMap(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);
    }

    public ByteObjectHashMap(ByteObjectMap map)
    {
        this(Math.max(map.size(), DEFAULT_INITIAL_CAPACITY));
        this.putAll(map);
    }

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

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

    public static  ByteObjectHashMap newMap()
    {
        return new ByteObjectHashMap();
    }

    public static  ByteObjectHashMap newMap(ByteObjectMap map)
    {
        return new ByteObjectHashMap(map);
    }

    public static  ByteObjectHashMap newWithKeysValues(byte key, V value)
    {
        return new ByteObjectHashMap(1).withKeyValue(key, value);
    }

    public static  ByteObjectHashMap newWithKeysValues(byte key1, V value1, byte key2, V value2)
    {
        return new ByteObjectHashMap(2).withKeysValues(key1, value1, key2, value2);
    }

    public static  ByteObjectHashMap newWithKeysValues(byte key1, V value1, byte key2, V value2, byte key3, V value3)
    {
        return new ByteObjectHashMap(3).withKeysValues(key1, value1, key2, value2, key3, value3);
    }

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

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

        ByteObjectMap other = (ByteObjectMap) 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) || !nullSafeEquals(this.sentinelValues.zeroValue, other.get(EMPTY_KEY))))
            {
                return false;
            }

            if (this.sentinelValues.containsOneKey && (!other.containsKey(REMOVED_KEY) || !nullSafeEquals(this.sentinelValues.oneValue, other.get(REMOVED_KEY))))
            {
                return false;
            }
        }

        for (int i = 0; i < this.keys.length; i++)
        {
            byte key = this.keys[i];
            if (isNonSentinel(key) && (!other.containsKey(key) || !nullSafeEquals(this.values[i], other.get(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 == null ? 0 : this.sentinelValues.zeroValue.hashCode());
            }

            if (this.sentinelValues.containsOneKey)
            {
                result += (int) REMOVED_KEY ^ (this.sentinelValues.oneValue == null ? 0 : this.sentinelValues.oneValue.hashCode());
            }
        }

        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]))
            {
                result += (int) this.keys[i] ^ (this.values[i] == null ? 0 : this.values[i].hashCode());
            }
        }
        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(EMPTY_KEY).append("=").append(this.sentinelValues.zeroValue);
                first = false;
            }
            if (this.sentinelValues.containsOneKey)
            {
                if (!first)
                {
                    appendable.append(", ");
                }
                appendable.append(REMOVED_KEY).append("=").append(this.sentinelValues.oneValue);
                first = false;
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            byte key = this.keys[i];
            if (isNonSentinel(key))
            {
                if (!first)
                {
                    appendable.append(", ");
                }
                appendable.append(key).append("=").append(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++)
            {
                byte 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 Iterator iterator()
    {
        return new InternalIterator();
    }

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

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

    public  T[] toArray(T[] a)
    {
        int size = this.size();

        final T[] result = a.length < size
                ? (T[]) Array.newInstance(a.getClass().getComponentType(), size)
                : a;

        this.forEachWithIndex(new ObjectIntProcedure()
        {
            public void value(Object each, int index)
            {
                result[index] = (T) each;
            }
        });
        if (result.length > size)
        {
            result[size] = null;
        }
        return result;
    }

    public boolean contains(Object object)
    {
        return this.containsValue(object);
    }

    public boolean containsAllIterable(Iterable source)
    {
        for (Object item : source)
        {
            if (!this.contains(item))
            {
                return false;
            }
        }
        return true;
    }

    public boolean containsAll(Collection source)
    {
        return this.containsAllIterable(source);
    }

    public boolean containsAllArguments(Object... elements)
    {
        for (Object item : elements)
        {
            if (!this.contains(item))
            {
                return false;
            }
        }
        return true;
    }

    public ByteObjectHashMap tap(Procedure procedure)
    {
        this.forEachValue(procedure);
        return this;
    }

    public void forEach(Procedure procedure)
    {
        this.each(procedure);
    }

    public void each(Procedure procedure)
    {
        this.forEachValue(procedure);
    }

    public void forEachWithIndex(ObjectIntProcedure objectIntProcedure)
    {
        int index = 0;
        if (this.sentinelValues != null)
        {
            if (this.sentinelValues.containsZeroKey)
            {
                objectIntProcedure.value(this.sentinelValues.zeroValue, index++);
            }
            if (this.sentinelValues.containsOneKey)
            {
                objectIntProcedure.value(this.sentinelValues.oneValue, index++);
            }
        }
        for (int i = 0; i < this.keys.length; i++)
        {
            if (isNonSentinel(this.keys[i]))
            {
                objectIntProcedure.value(this.values[i], index++);
            }
        }
    }

    public 

void forEachWith(Procedure2 procedure, P parameter) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { procedure.value(this.sentinelValues.zeroValue, parameter); } if (this.sentinelValues.containsOneKey) { procedure.value(this.sentinelValues.oneValue, parameter); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { procedure.value(this.values[i], parameter); } } } public void forEachValue(Procedure 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(ByteProcedure procedure) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { procedure.value(EMPTY_KEY); } if (this.sentinelValues.containsOneKey) { procedure.value(REMOVED_KEY); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { procedure.value(this.keys[i]); } } } public void forEachKeyValue(ByteObjectProcedure 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 ByteObjectHashMap select(ByteObjectPredicate predicate) { ByteObjectHashMap result = ByteObjectHashMap.newMap(); 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 ByteObjectHashMap reject(ByteObjectPredicate predicate) { ByteObjectHashMap result = ByteObjectHashMap.newMap(); 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 MutableCollection select(Predicate predicate) { MutableList result = FastList.newList(); 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 > R select(Predicate predicate, R target) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue)) { target.add(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue)) { target.add(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i])) { target.add(this.values[i]); } } return target; } public

MutableCollection selectWith(Predicate2 predicate, P parameter) { return this.select(Predicates.bind(predicate, parameter)); } public > R selectWith(Predicate2 predicate, P parameter, R targetCollection) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue, parameter)) { targetCollection.add(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue, parameter)) { targetCollection.add(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i], parameter)) { targetCollection.add(this.values[i]); } } return targetCollection; } public MutableCollection reject(Predicate predicate) { MutableList result = FastList.newList(); 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 > R reject(Predicate predicate, R target) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && !predicate.accept(this.sentinelValues.zeroValue)) { target.add(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey && !predicate.accept(this.sentinelValues.oneValue)) { target.add(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && !predicate.accept(this.values[i])) { target.add(this.values[i]); } } return target; } public

MutableCollection rejectWith(Predicate2 predicate, P parameter) { return this.reject(Predicates.bind(predicate, parameter)); } public > R rejectWith(Predicate2 predicate, P parameter, R targetCollection) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && !predicate.accept(this.sentinelValues.zeroValue, parameter)) { targetCollection.add(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey && !predicate.accept(this.sentinelValues.oneValue, parameter)) { targetCollection.add(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && !predicate.accept(this.values[i], parameter)) { targetCollection.add(this.values[i]); } } return targetCollection; } public PartitionMutableBag partition(Predicate predicate) { PartitionMutableBag partitionMutableBag = new PartitionHashBag(); this.forEach(new PartitionProcedure(predicate, partitionMutableBag)); return partitionMutableBag; } public

PartitionMutableBag partitionWith(Predicate2 predicate, P parameter) { PartitionMutableBag partitionMutableBag = new PartitionHashBag(); this.forEach(new PartitionProcedure(Predicates.bind(predicate, parameter), partitionMutableBag)); return partitionMutableBag; } public MutableBag selectInstancesOf(Class clazz) { MutableBag result = HashBag.newBag(this.size()); this.forEach(new SelectInstancesOfProcedure(clazz, result)); return result; } public MutableCollection collect(Function function) { return this.collect(function, FastList.newList(this.size())); } public MutableBooleanCollection collectBoolean(BooleanFunction booleanFunction) { return this.collectBoolean(booleanFunction, new BooleanArrayList(this.size())); } public R collectBoolean(BooleanFunction booleanFunction, R target) { this.forEach(new CollectBooleanProcedure(booleanFunction, target)); return target; } public MutableByteCollection collectByte(ByteFunction byteFunction) { return this.collectByte(byteFunction, new ByteArrayList(this.size())); } public R collectByte(ByteFunction byteFunction, R target) { this.forEach(new CollectByteProcedure(byteFunction, target)); return target; } public MutableCharCollection collectChar(CharFunction charFunction) { return this.collectChar(charFunction, new CharArrayList(this.size())); } public R collectChar(CharFunction charFunction, R target) { this.forEach(new CollectCharProcedure(charFunction, target)); return target; } public MutableDoubleCollection collectDouble(DoubleFunction doubleFunction) { return this.collectDouble(doubleFunction, new DoubleArrayList(this.size())); } public R collectDouble(DoubleFunction doubleFunction, R target) { this.forEach(new CollectDoubleProcedure(doubleFunction, target)); return target; } public MutableFloatCollection collectFloat(FloatFunction floatFunction) { return this.collectFloat(floatFunction, new FloatArrayList(this.size())); } public R collectFloat(FloatFunction floatFunction, R target) { this.forEach(new CollectFloatProcedure(floatFunction, target)); return target; } public MutableIntCollection collectInt(IntFunction intFunction) { return this.collectInt(intFunction, new IntArrayList(this.size())); } public R collectInt(IntFunction intFunction, R target) { this.forEach(new CollectIntProcedure(intFunction, target)); return target; } public MutableLongCollection collectLong(LongFunction longFunction) { return this.collectLong(longFunction, new LongArrayList(this.size())); } public R collectLong(LongFunction longFunction, R target) { this.forEach(new CollectLongProcedure(longFunction, target)); return target; } public MutableShortCollection collectShort(ShortFunction shortFunction) { return this.collectShort(shortFunction, new ShortArrayList(this.size())); } public R collectShort(ShortFunction shortFunction, R target) { this.forEach(new CollectShortProcedure(shortFunction, target)); return target; } public MutableCollection collectWith(Function2 function, P parameter) { return this.collect(Functions.bind(function, parameter)); } public > R collectWith(Function2 function, P parameter, R targetCollection) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { targetCollection.add(function.value(this.sentinelValues.zeroValue, parameter)); } if (this.sentinelValues.containsOneKey) { targetCollection.add(function.value(this.sentinelValues.oneValue, parameter)); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { targetCollection.add(function.value(this.values[i], parameter)); } } return targetCollection; } public > R collect(Function function, R target) { 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 MutableBag collectIf(Predicate predicate, Function function) { return this.collectIf(predicate, function, HashBag.newBag()); } public > R collectIf(Predicate predicate, Function function, R target) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue)) { target.add(function.valueOf(this.sentinelValues.zeroValue)); } if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue)) { target.add(function.valueOf(this.sentinelValues.oneValue)); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i])) { target.add(function.valueOf(this.values[i])); } } return target; } public MutableList flatCollect(Function> function) { return this.flatCollect(function, FastList.newList()); } public > R flatCollect(Function> function, R target) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { Iterate.addAllTo(function.valueOf(this.sentinelValues.zeroValue), target); } if (this.sentinelValues.containsOneKey) { Iterate.addAllTo(function.valueOf(this.sentinelValues.oneValue), target); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { Iterate.addAllTo(function.valueOf(this.values[i]), target); } } return target; } public V detect(Predicate predicate) { 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 null; } public

V detectWith(Predicate2 predicate, P parameter) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue, parameter)) { return this.sentinelValues.zeroValue; } if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue, parameter)) { return this.sentinelValues.oneValue; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i], parameter)) { return this.values[i]; } } return null; } public V detectIfNone(Predicate predicate, Function0 function) { 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 function.value(); } public

V detectWithIfNone(Predicate2 predicate, P parameter, Function0 function) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue, parameter)) { return this.sentinelValues.zeroValue; } if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue, parameter)) { return this.sentinelValues.oneValue; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i], parameter)) { return this.values[i]; } } return function.value(); } public int count(Predicate 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

int countWith(Predicate2 predicate, P parameter) { int count = 0; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue, parameter)) { count++; } if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue, parameter)) { count++; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i], parameter)) { count++; } } return count; } public boolean anySatisfy(Predicate 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 anySatisfyWith(Predicate2 predicate, P parameter) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue, parameter)) { return true; } if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue, parameter)) { return true; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i], parameter)) { return true; } } return false; } public boolean allSatisfy(Predicate 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 allSatisfyWith(Predicate2 predicate, P parameter) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && !predicate.accept(this.sentinelValues.zeroValue, parameter)) { return false; } if (this.sentinelValues.containsOneKey && !predicate.accept(this.sentinelValues.oneValue, parameter)) { return false; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && !predicate.accept(this.values[i], parameter)) { return false; } } return true; } public boolean noneSatisfy(Predicate 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 noneSatisfyWith(Predicate2 predicate, P parameter) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey && predicate.accept(this.sentinelValues.zeroValue, parameter)) { return false; } if (this.sentinelValues.containsOneKey && predicate.accept(this.sentinelValues.oneValue, parameter)) { return false; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && predicate.accept(this.values[i], parameter)) { return false; } } return true; } public IV injectInto(IV injectedValue, Function2 function) { IV result = injectedValue; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { result = function.value(result, this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { result = function.value(result, this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { result = function.value(result, this.values[i]); } } return result; } public int injectInto(int injectedValue, IntObjectToIntFunction function) { int result = injectedValue; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { result = function.intValueOf(result, this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { result = function.intValueOf(result, this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { result = function.intValueOf(result, this.values[i]); } } return result; } public long injectInto(long injectedValue, LongObjectToLongFunction function) { long result = injectedValue; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { result = function.longValueOf(result, this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { result = function.longValueOf(result, this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { result = function.longValueOf(result, this.values[i]); } } return result; } public float injectInto(float injectedValue, FloatObjectToFloatFunction function) { float result = injectedValue; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { result = function.floatValueOf(result, this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { result = function.floatValueOf(result, this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { result = function.floatValueOf(result, this.values[i]); } } return result; } public double injectInto(double injectedValue, DoubleObjectToDoubleFunction function) { double result = injectedValue; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { result = function.doubleValueOf(result, this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { result = function.doubleValueOf(result, this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { result = function.doubleValueOf(result, this.values[i]); } } return result; } /** * @deprecated in 7.0. Use {@link OrderedIterable#zip(Iterable)} instead. */ @Deprecated public MutableBag> zip(Iterable that) { return this.zip(that, HashBag.>newBag()); } public >> R zip(Iterable that, R target) { return IterableIterate.zip(this, that, target); } /** * @deprecated in 7.0. Use {@link OrderedIterable#zipWithIndex()} instead. */ @Deprecated public MutableSet> zipWithIndex() { return this.zipWithIndex(UnifiedSet.>newSet()); } public >> R zipWithIndex(R target) { return IterableIterate.zipWithIndex(this, target); } public RichIterable> chunk(int size) { if (size <= 0) { throw new IllegalArgumentException("Size for groups must be positive but was: " + size); } Iterator iterator = this.iterator(); MutableList> result = Lists.mutable.of(); while (iterator.hasNext()) { MutableList batch = FastList.newList(); for (int i = 0; i < size && iterator.hasNext(); i++) { batch.add(iterator.next()); } result.add(batch); } return result; } public MutableMap aggregateInPlaceBy(Function groupBy, Function0 zeroValueFactory, Procedure2 mutatingAggregator) { MutableMap map = UnifiedMap.newMap(); this.forEach(new MutatingAggregationProcedure(map, groupBy, zeroValueFactory, mutatingAggregator)); return map; } public MutableMap aggregateBy(Function groupBy, Function0 zeroValueFactory, Function2 nonMutatingAggregator) { MutableMap map = UnifiedMap.newMap(); this.forEach(new NonMutatingAggregationProcedure(map, groupBy, zeroValueFactory, nonMutatingAggregator)); return map; } public MutableBagMultimap groupBy(Function function) { return this.groupBy(function, HashBagMultimap.newMultimap()); } public > R groupBy(Function function, R target) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { target.put(function.valueOf(this.sentinelValues.zeroValue), this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { target.put(function.valueOf(this.sentinelValues.oneValue), this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { target.put(function.valueOf(this.values[i]), this.values[i]); } } return target; } public MutableBagMultimap groupByEach(Function> function) { return this.groupByEach(function, HashBagMultimap.newMultimap()); } public > R groupByEach( Function> function, R target) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { Iterable iterable = function.valueOf(this.sentinelValues.zeroValue); for (VV key : iterable) { target.put(key, this.sentinelValues.zeroValue); } } if (this.sentinelValues.containsOneKey) { Iterable iterable = function.valueOf(this.sentinelValues.oneValue); for (VV key : iterable) { target.put(key, this.sentinelValues.oneValue); } } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { Iterable iterable = function.valueOf(this.values[i]); for (VV key : iterable) { target.put(key, this.values[i]); } } } return target; } public MutableMap groupByUniqueKey(Function function) { return this.groupByUniqueKey(function, UnifiedMap.newMap()); } public > R groupByUniqueKey( Function function, R target) { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { if (target.put(function.valueOf(this.sentinelValues.zeroValue), this.sentinelValues.zeroValue) != null) { throw new IllegalStateException("Key " + function.valueOf(this.sentinelValues.zeroValue) + " already exists in map!"); } } if (this.sentinelValues.containsOneKey) { if (target.put(function.valueOf(this.sentinelValues.oneValue), this.sentinelValues.oneValue) != null) { throw new IllegalStateException("Key " + function.valueOf(this.sentinelValues.oneValue) + " already exists in map!"); } } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { if (target.put(function.valueOf(this.values[i]), this.values[i]) != null) { throw new IllegalStateException("Key " + function.valueOf(this.values[i]) + " already exists in map!"); } } } return target; } public V getFirst() { if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { return this.sentinelValues.zeroValue; } if (this.sentinelValues.containsOneKey) { return this.sentinelValues.oneValue; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { return this.values[i]; } } return null; } public V getLast() { for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { return this.values[i]; } } if (this.sentinelValues != null) { if (this.sentinelValues.containsOneKey) { return this.sentinelValues.oneValue; } if (this.sentinelValues.containsZeroKey) { return this.sentinelValues.zeroValue; } } return null; } public MutableList toList() { MutableList list = Lists.mutable.of(); this.forEachWith(Procedures2.addToCollection(), list); return list; } public MutableList toSortedList() { return this.toList().sortThis(); } public MutableList toSortedList(Comparator comparator) { return this.toList().sortThis(comparator); } public > MutableList toSortedListBy(Function function) { return this.toList().sortThis(Comparators.byFunction(function)); } public MutableSet toSet() { MutableSet set = UnifiedSet.newSet(); this.forEachWith(Procedures2.addToCollection(), set); return set; } public MutableSortedSet toSortedSet() { MutableSortedSet set = TreeSortedSet.newSet(); this.forEachWith(Procedures2.addToCollection(), set); return set; } public MutableSortedSet toSortedSet(Comparator comparator) { MutableSortedSet set = TreeSortedSet.newSet(comparator); this.forEachWith(Procedures2.addToCollection(), set); return set; } public > MutableSortedSet toSortedSetBy(Function function) { MutableSortedSet set = TreeSortedSet.newSet(Comparators.byFunction(function)); this.forEachWith(Procedures2.addToCollection(), set); return set; } public MutableBag toBag() { MutableBag bag = Bags.mutable.of(); this.forEachWith(Procedures2.addToCollection(), bag); return bag; } public MutableSortedBag toSortedBag() { MutableSortedBag sortedBag = TreeBag.newBag(); this.forEachWith(Procedures2.addToCollection(), sortedBag); return sortedBag; } public MutableSortedBag toSortedBag(Comparator comparator) { MutableSortedBag sortedBag = TreeBag.newBag(comparator); this.forEachWith(Procedures2.addToCollection(), sortedBag); return sortedBag; } public > MutableSortedBag toSortedBagBy(Function function) { return this.toSortedBag(Comparators.byFunction(function)); } public MutableMap toMap(Function keyFunction, Function valueFunction) { UnifiedMap map = UnifiedMap.newMap(); this.forEach(new MapCollectProcedure(map, keyFunction, valueFunction)); return map; } public MutableSortedMap toSortedMap(Function keyFunction, Function valueFunction) { return this.toSortedMap(Comparators.naturalOrder(), keyFunction, valueFunction); } public MutableSortedMap toSortedMap(Comparator comparator, Function keyFunction, Function valueFunction) { TreeSortedMap sortedMap = TreeSortedMap.newMap(comparator); this.forEach(new MapCollectProcedure(sortedMap, keyFunction, valueFunction)); return sortedMap; } public LazyIterable asLazy() { return LazyIterate.adapt(this); } public V min(Comparator comparator) { if (this.isEmpty()) { throw new NoSuchElementException(); } V min = null; boolean isMinSet = false; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { min = this.sentinelValues.zeroValue; isMinSet = true; } if (this.sentinelValues.containsOneKey && (!isMinSet || comparator.compare(min, this.sentinelValues.oneValue) > 0)) { min = this.sentinelValues.oneValue; isMinSet = true; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && (!isMinSet || comparator.compare(min, this.values[i]) > 0)) { min = this.values[i]; isMinSet = true; } } return min; } public V max(Comparator comparator) { if (this.isEmpty()) { throw new NoSuchElementException(); } V max = null; boolean isMaxSet = false; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { max = this.sentinelValues.zeroValue; isMaxSet = true; } if (this.sentinelValues.containsOneKey && (!isMaxSet || comparator.compare(max, this.sentinelValues.oneValue) < 0)) { max = this.sentinelValues.oneValue; isMaxSet = true; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && (!isMaxSet || comparator.compare(max, this.values[i]) < 0)) { max = this.values[i]; isMaxSet = true; } } return max; } public V min() { return this.min(Comparators.naturalOrder()); } public V max() { return this.max(Comparators.naturalOrder()); } public > V maxBy(Function function) { if (this.isEmpty()) { throw new NoSuchElementException(); } V max = null; boolean isMaxSet = false; VV maxValue = null; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { max = this.sentinelValues.zeroValue; isMaxSet = true; maxValue = function.valueOf(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { VV nextValue = function.valueOf(this.sentinelValues.oneValue); if (!isMaxSet || nextValue.compareTo(maxValue) > 0) { max = this.sentinelValues.oneValue; isMaxSet = true; maxValue = nextValue; } } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { V next = this.values[i]; VV nextValue = function.valueOf(next); if (!isMaxSet || nextValue.compareTo(maxValue) > 0) { max = next; isMaxSet = true; maxValue = nextValue; } } } return max; } public > V minBy(Function function) { if (this.isEmpty()) { throw new NoSuchElementException(); } V min = null; boolean isMinSet = false; VV minValue = null; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { min = this.sentinelValues.zeroValue; isMinSet = true; minValue = function.valueOf(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { VV nextValue = function.valueOf(this.sentinelValues.oneValue); if (!isMinSet || nextValue.compareTo(minValue) < 0) { min = this.sentinelValues.oneValue; isMinSet = true; minValue = nextValue; } } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { V next = this.values[i]; VV nextValue = function.valueOf(next); if (!isMinSet || nextValue.compareTo(minValue) < 0) { min = next; isMinSet = true; minValue = nextValue; } } } return min; } public long sumOfInt(IntFunction function) { long sum = 0L; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { sum += function.intValueOf(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { sum += function.intValueOf(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { sum += function.intValueOf(this.values[i]); } } return sum; } public double sumOfFloat(FloatFunction function) { double sum = 0.0; double compensation = 0.0; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { double adjustedValue = function.floatValueOf(this.sentinelValues.zeroValue) - compensation; double nextSum = sum + adjustedValue; compensation = nextSum - sum - adjustedValue; sum = nextSum; } if (this.sentinelValues.containsOneKey) { double adjustedValue = function.floatValueOf(this.sentinelValues.oneValue) - compensation; double nextSum = sum + adjustedValue; compensation = nextSum - sum - adjustedValue; sum = nextSum; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { double adjustedValue = function.floatValueOf(this.values[i]) - compensation; double nextSum = sum + adjustedValue; compensation = nextSum - sum - adjustedValue; sum = nextSum; } } return sum; } public long sumOfLong(LongFunction function) { long sum = 0L; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { sum += function.longValueOf(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { sum += function.longValueOf(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { sum += function.longValueOf(this.values[i]); } } return sum; } public double sumOfDouble(DoubleFunction function) { double sum = 0.0; double compensation = 0.0; if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { double adjustedValue = function.doubleValueOf(this.sentinelValues.zeroValue) - compensation; double nextSum = sum + adjustedValue; compensation = nextSum - sum - adjustedValue; sum = nextSum; } if (this.sentinelValues.containsOneKey) { double adjustedValue = function.doubleValueOf(this.sentinelValues.oneValue) - compensation; double nextSum = sum + adjustedValue; compensation = nextSum - sum - adjustedValue; sum = nextSum; } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { double adjustedValue = function.doubleValueOf(this.values[i]) - compensation; double nextSum = sum + adjustedValue; compensation = nextSum - sum - adjustedValue; sum = nextSum; } } return sum; } public ObjectLongMap sumByInt(Function groupBy, IntFunction function) { ObjectLongHashMap result = ObjectLongHashMap.newMap(); return this.injectInto(result, PrimitiveFunctions.sumByIntFunction(groupBy, function)); } public ObjectDoubleMap sumByFloat(Function groupBy, FloatFunction function) { ObjectDoubleHashMap result = ObjectDoubleHashMap.newMap(); return this.injectInto(result, PrimitiveFunctions.sumByFloatFunction(groupBy, function)); } public ObjectLongMap sumByLong(Function groupBy, LongFunction function) { ObjectLongHashMap result = ObjectLongHashMap.newMap(); return this.injectInto(result, PrimitiveFunctions.sumByLongFunction(groupBy, function)); } public ObjectDoubleMap sumByDouble(Function groupBy, DoubleFunction function) { ObjectDoubleHashMap result = ObjectDoubleHashMap.newMap(); return this.injectInto(result, PrimitiveFunctions.sumByDoubleFunction(groupBy, function)); } public void clear() { this.sentinelValues = null; this.occupiedWithData = 0; this.occupiedWithSentinels = 0; if (this.copyKeysOnWrite) { this.keys = new byte[this.keys.length]; this.copyKeysOnWrite = false; } Arrays.fill(this.keys, EMPTY_KEY); Arrays.fill(this.values, null); } public V put(byte key, V value) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); } V oldValue = this.sentinelValues.zeroValue; this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return oldValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); } V oldValue = this.sentinelValues.oneValue; this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; return oldValue; } int index = this.probe(key); if (this.keys[index] == key) { // key already present in map V oldValue = this.values[index]; this.values[index] = value; return oldValue; } this.addKeyValueAtIndex(key, value, index); return null; } public void putAll(ByteObjectMap map) { map.forEachKeyValue(new ByteObjectProcedure() { public void value(byte key, V value) { ByteObjectHashMap.this.put(key, value); } }); } public boolean containsKey(byte 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(Object value) { if (this.sentinelValues != null && this.sentinelValues.containsValue((V) value)) { return true; } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i]) && nullSafeEquals(this.values[i], value)) { return true; } } return false; } public V get(byte key) { return this.getIfAbsent(key, Functions0.nullValue()); } public V getIfAbsent(byte key, Function0 ifAbsent) { if (isEmptyKey(key)) { if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey) { return ifAbsent.value(); } return this.sentinelValues.zeroValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null || !this.sentinelValues.containsOneKey) { return ifAbsent.value(); } return this.sentinelValues.oneValue; } int index = this.probe(key); if (this.keys[this.probe(key)] == key) { return this.values[index]; } return ifAbsent.value(); } public V getIfAbsentPut(byte key, V value) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return value; } if (this.sentinelValues.containsZeroKey) { return this.sentinelValues.zeroValue; } this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return value; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; return value; } if (this.sentinelValues.containsOneKey) { return this.sentinelValues.oneValue; } this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = 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 V getIfAbsentPut(byte key, Function0 function) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { V value = function.value(); this.sentinelValues = new SentinelValues(); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return value; } if (this.sentinelValues.containsZeroKey) { return this.sentinelValues.zeroValue; } V value = function.value(); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return value; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { V value = function.value(); this.sentinelValues = new SentinelValues(); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; return value; } if (this.sentinelValues.containsOneKey) { return this.sentinelValues.oneValue; } V value = function.value(); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; return value; } int index = this.probe(key); if (this.keys[index] == key) { return this.values[index]; } V value = function.value(); this.addKeyValueAtIndex(key, value, index); return value; } public

V getIfAbsentPutWith(byte key, Function function, P parameter) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { V value = function.valueOf(parameter); this.sentinelValues = new SentinelValues(); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return value; } if (this.sentinelValues.containsZeroKey) { return this.sentinelValues.zeroValue; } V value = function.valueOf(parameter); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return value; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { V value = function.valueOf(parameter); this.sentinelValues = new SentinelValues(); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; return value; } if (this.sentinelValues.containsOneKey) { return this.sentinelValues.oneValue; } V value = function.valueOf(parameter); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; return value; } int index = this.probe(key); if (this.keys[index] == key) { return this.values[index]; } V value = function.valueOf(parameter); this.addKeyValueAtIndex(key, value, index); return value; } public V getIfAbsentPutWithKey(byte key, ByteToObjectFunction function) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { V value = function.valueOf(key); this.sentinelValues = new SentinelValues(); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return value; } if (this.sentinelValues.containsZeroKey) { return this.sentinelValues.zeroValue; } V value = function.valueOf(key); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = value; return value; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { V value = function.valueOf(key); this.sentinelValues = new SentinelValues(); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; return value; } if (this.sentinelValues.containsOneKey) { return this.sentinelValues.oneValue; } V value = function.valueOf(key); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = value; return value; } int index = this.probe(key); if (this.keys[index] == key) { return this.values[index]; } V value = function.valueOf(key); this.addKeyValueAtIndex(key, value, index); return value; } public V updateValue(byte key, Function0 factory, Function function) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = function.valueOf(factory.value()); } else if (this.sentinelValues.containsZeroKey) { this.sentinelValues.zeroValue = function.valueOf(this.sentinelValues.zeroValue); } else { this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = function.valueOf(factory.value()); } return this.sentinelValues.zeroValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = function.valueOf(factory.value()); } else if (this.sentinelValues.containsOneKey) { this.sentinelValues.oneValue = function.valueOf(this.sentinelValues.oneValue); } else { this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = function.valueOf(factory.value()); } 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]; } V value = function.valueOf(factory.value()); this.addKeyValueAtIndex(key, value, index); return value; } public

V updateValueWith(byte key, Function0 factory, Function2 function, P parameter) { if (isEmptyKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = function.value(factory.value(), parameter); } else if (this.sentinelValues.containsZeroKey) { this.sentinelValues.zeroValue = function.value(this.sentinelValues.zeroValue, parameter); } else { this.sentinelValues.containsZeroKey = true; this.sentinelValues.zeroValue = function.value(factory.value(), parameter); } return this.sentinelValues.zeroValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null) { this.sentinelValues = new SentinelValues(); this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = function.value(factory.value(), parameter); } else if (this.sentinelValues.containsOneKey) { this.sentinelValues.oneValue = function.value(this.sentinelValues.oneValue, parameter); } else { this.sentinelValues.containsOneKey = true; this.sentinelValues.oneValue = function.value(factory.value(), parameter); } return this.sentinelValues.oneValue; } int index = this.probe(key); if (this.keys[index] == key) { this.values[index] = function.value(this.values[index], parameter); return this.values[index]; } V value = function.value(factory.value(), parameter); this.addKeyValueAtIndex(key, value, index); return value; } public V removeKey(byte key) { if (isEmptyKey(key)) { if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey) { return null; } V oldValue = this.sentinelValues.zeroValue; if (this.sentinelValues.containsOneKey) { this.sentinelValues.containsZeroKey = false; this.sentinelValues.zeroValue = null; } else { this.sentinelValues = null; } return oldValue; } if (isRemovedKey(key)) { if (this.sentinelValues == null || !this.sentinelValues.containsOneKey) { return null; } V oldValue = this.sentinelValues.oneValue; if (this.sentinelValues.containsZeroKey) { this.sentinelValues.containsOneKey = false; this.sentinelValues.oneValue = null; } else { this.sentinelValues = null; } return oldValue; } int index = this.probe(key); if (this.keys[index] == key) { V oldValue = this.values[index]; this.removeKeyAtIndex(index); return oldValue; } return null; } public V remove(byte key) { return this.removeKey(key); } public ByteObjectHashMap withKeyValue(byte key, V value) { this.put(key, value); return this; } public MutableByteObjectMap withoutKey(byte key) { this.removeKey(key); return this; } public MutableByteObjectMap withoutAllKeys(ByteIterable keys) { ByteIterator iterator = keys.byteIterator(); while (iterator.hasNext()) { byte item = iterator.next(); this.removeKey(item); } return this; } public ByteObjectHashMap withKeysValues(byte key1, V value1, byte key2, V value2) { this.put(key1, value1); this.put(key2, value2); return this; } public ByteObjectHashMap withKeysValues(byte key1, V value1, byte key2, V value2, byte key3, V value3) { this.put(key1, value1); this.put(key2, value2); this.put(key3, value3); return this; } public ByteObjectHashMap withKeysValues(byte key1, V value1, byte key2, V value2, byte key3, V value3, byte key4, V value4) { this.put(key1, value1); this.put(key2, value2); this.put(key3, value3); this.put(key4, value4); return this; } public MutableByteObjectMap asUnmodifiable() { return new UnmodifiableByteObjectMap(this); } public MutableByteObjectMap asSynchronized() { return new SynchronizedByteObjectMap(this); } public ImmutableByteObjectMap toImmutable() { return ByteObjectMaps.immutable.withAll(this); } public void writeExternal(ObjectOutput out) throws IOException { out.writeInt(this.size()); if (this.sentinelValues != null) { if (this.sentinelValues.containsZeroKey) { out.writeByte(EMPTY_KEY); out.writeObject(this.sentinelValues.zeroValue); } if (this.sentinelValues.containsOneKey) { out.writeByte(REMOVED_KEY); out.writeObject(this.sentinelValues.oneValue); } } for (int i = 0; i < this.keys.length; i++) { if (isNonSentinel(this.keys[i])) { out.writeByte(this.keys[i]); out.writeObject(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.readByte(), (V) in.readObject()); } } private void addKeyValueAtIndex(byte key, V value, int index) { if (this.keys[index] == REMOVED_KEY) { this.occupiedWithSentinels--; } if (this.copyKeysOnWrite) { this.copyKeys(); } this.keys[index] = key; this.values[index] = value; ++this.occupiedWithData; if (this.occupiedWithData > this.maxOccupiedWithData()) { this.rehashAndGrow(); } } private void removeKeyAtIndex(int index) { if (this.copyKeysOnWrite) { this.copyKeys(); } this.keys[index] = REMOVED_KEY; this.values[index] = null; this.occupiedWithData--; this.occupiedWithSentinels++; if (this.occupiedWithSentinels > this.maxOccupiedWithSentinels()) { this.rehash(); } } private void copyKeys() { byte[] copy = new byte[this.keys.length]; System.arraycopy(this.keys, 0, copy, 0, this.keys.length); this.keys = copy; this.copyKeysOnWrite = false; } private static final class SentinelValues { private boolean containsZeroKey; private boolean containsOneKey; private V zeroValue; private V oneValue; public int size() { return (this.containsZeroKey ? 1 : 0) + (this.containsOneKey ? 1 : 0); } public boolean containsValue(V value) { boolean valueEqualsZeroValue = this.containsZeroKey && nullSafeEquals(this.zeroValue, value); boolean valueEqualsOneValue = this.containsOneKey && nullSafeEquals(this.oneValue, value); return valueEqualsZeroValue || valueEqualsOneValue; } } private static boolean nullSafeEquals(Object value, Object other) { if (value == null) { if (other == null) { return true; } } else if (other == value || value.equals(other)) { return true; } return false; } private class InternalIterator implements Iterator { private int count; private int position; private byte currentKey; private boolean isCurrentKeySet; private boolean handledZeroKey; private boolean handledOneKey; public boolean hasNext() { return this.count != ByteObjectHashMap.this.size(); } public V next() { if (!this.hasNext()) { throw new NoSuchElementException(); } this.count++; if (!this.handledZeroKey) { this.handledZeroKey = true; if (ByteObjectHashMap.this.containsKey(EMPTY_KEY)) { this.currentKey = ByteObjectHashMap.EMPTY_KEY; this.isCurrentKeySet = true; return ByteObjectHashMap.this.sentinelValues.zeroValue; } } if (!this.handledOneKey) { this.handledOneKey = true; if (ByteObjectHashMap.this.containsKey(REMOVED_KEY)) { this.currentKey = ByteObjectHashMap.REMOVED_KEY; this.isCurrentKeySet = true; return ByteObjectHashMap.this.sentinelValues.oneValue; } } byte[] keys = ByteObjectHashMap.this.keys; while (!isNonSentinel(keys[this.position])) { this.position++; } this.currentKey = ByteObjectHashMap.this.keys[this.position]; this.isCurrentKeySet = true; V result = ByteObjectHashMap.this.values[this.position]; this.position++; return result; } public void remove() { if (!this.isCurrentKeySet) { throw new IllegalStateException(); } this.isCurrentKeySet = false; this.count--; if (isNonSentinel(this.currentKey)) { int index = this.position - 1; ByteObjectHashMap.this.removeKeyAtIndex(index); } else { ByteObjectHashMap.this.removeKey(this.currentKey); } } } public MutableByteSet keySet() { return new KeySet(); } /** * 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; byte[] old = this.keys; V[] 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]); } } this.copyKeysOnWrite = false; } // exposed for testing int probe(byte element) { int index = this.spreadAndMask(element); byte 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 spreadAndMask(byte element) { // No spreading necessary for 8-bit types return this.mask(element); } private int mask(int spread) { return spread & (this.keys.length - 1); } private void allocateTable(int sizeToAllocate) { this.keys = new byte[sizeToAllocate]; this.values = (V[]) new Object[sizeToAllocate]; } private static boolean isEmptyKey(byte key) { return key == EMPTY_KEY; } private static boolean isRemovedKey(byte key) { return key == REMOVED_KEY; } private static boolean isNonSentinel(byte 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 class KeySet implements MutableByteSet { public MutableByteIterator byteIterator() { return new KeysSetIterator(); } public void forEach(ByteProcedure procedure) { this.each(procedure); } /** * @since 7.0. */ public void each(ByteProcedure procedure) { ByteObjectHashMap.this.forEachKey(procedure); } public int count(BytePredicate predicate) { int count = 0; if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { count++; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { count++; } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { count++; } } return count; } public boolean anySatisfy(BytePredicate predicate) { if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { return true; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { return true; } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { return true; } } return false; } public T injectInto(T injectedValue, ObjectByteToObjectFunction function) { T result = injectedValue; if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { result = function.valueOf(result, EMPTY_KEY); } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { result = function.valueOf(result, REMOVED_KEY); } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key)) { result = function.valueOf(result, key); } } return result; } public boolean allSatisfy(BytePredicate predicate) { if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey && !predicate.accept(EMPTY_KEY)) { return false; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey && !predicate.accept(REMOVED_KEY)) { return false; } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key) && !predicate.accept(key)) { return false; } } return true; } public boolean noneSatisfy(BytePredicate predicate) { if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { return false; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { return false; } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { return false; } } return true; } public boolean add(byte element) { throw new UnsupportedOperationException("Cannot call add() on " + this.getClass().getSimpleName()); } public boolean addAll(byte... source) { throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName()); } public boolean addAll(ByteIterable source) { throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName()); } public boolean remove(byte key) { int oldSize = ByteObjectHashMap.this.size(); ByteObjectHashMap.this.removeKey(key); return oldSize != ByteObjectHashMap.this.size(); } public boolean removeAll(ByteIterable source) { int oldSize = ByteObjectHashMap.this.size(); ByteIterator iterator = source.byteIterator(); while (iterator.hasNext()) { ByteObjectHashMap.this.removeKey(iterator.next()); } return oldSize != ByteObjectHashMap.this.size(); } public boolean removeAll(byte... source) { int oldSize = ByteObjectHashMap.this.size(); for (byte item : source) { ByteObjectHashMap.this.removeKey(item); } return oldSize != ByteObjectHashMap.this.size(); } public boolean retainAll(ByteIterable source) { int oldSize = this.size(); final ByteSet sourceSet = source instanceof ByteSet ? (ByteSet) source : source.toSet(); ByteObjectHashMap retained = ByteObjectHashMap.this.select(new ByteObjectPredicate() { public boolean accept(byte key, V value) { return sourceSet.contains(key); } }); if (retained.size() != oldSize) { ByteObjectHashMap.this.keys = retained.keys; ByteObjectHashMap.this.values = retained.values; ByteObjectHashMap.this.sentinelValues = retained.sentinelValues; ByteObjectHashMap.this.occupiedWithData = retained.occupiedWithData; ByteObjectHashMap.this.occupiedWithSentinels = retained.occupiedWithSentinels; return true; } return false; } public boolean retainAll(byte... source) { return this.retainAll(ByteHashSet.newSetWith(source)); } public void clear() { ByteObjectHashMap.this.clear(); } public MutableByteSet select(BytePredicate predicate) { MutableByteSet result = new ByteHashSet(); if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { result.add(EMPTY_KEY); } if (ByteObjectHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { result.add(REMOVED_KEY); } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { result.add(key); } } return result; } public MutableByteSet reject(BytePredicate predicate) { MutableByteSet result = new ByteHashSet(); if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey && !predicate.accept(EMPTY_KEY)) { result.add(EMPTY_KEY); } if (ByteObjectHashMap.this.sentinelValues.containsOneKey && !predicate.accept(REMOVED_KEY)) { result.add(REMOVED_KEY); } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key) && !predicate.accept(key)) { result.add(key); } } return result; } public MutableByteSet with(byte element) { throw new UnsupportedOperationException("Cannot call with() on " + this.getClass().getSimpleName()); } public MutableByteSet without(byte element) { throw new UnsupportedOperationException("Cannot call without() on " + this.getClass().getSimpleName()); } public MutableByteSet withAll(ByteIterable elements) { throw new UnsupportedOperationException("Cannot call withAll() on " + this.getClass().getSimpleName()); } public MutableByteSet withoutAll(ByteIterable elements) { throw new UnsupportedOperationException("Cannot call withoutAll() on " + this.getClass().getSimpleName()); } public byte detectIfNone(BytePredicate predicate, byte ifNone) { if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY)) { return EMPTY_KEY; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY)) { return REMOVED_KEY; } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key) && predicate.accept(key)) { return key; } } return ifNone; } public MutableSet collect(ByteToObjectFunction function) { MutableSet result = Sets.mutable.with(); if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { result.add(function.valueOf(EMPTY_KEY)); } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { result.add(function.valueOf(REMOVED_KEY)); } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key)) { result.add(function.valueOf(key)); } } return result; } public MutableByteSet asUnmodifiable() { return UnmodifiableByteSet.of(this); } public MutableByteSet asSynchronized() { return SynchronizedByteSet.of(this); } public long sum() { long result = 0L; if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { result += EMPTY_KEY; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { result += REMOVED_KEY; } } for (byte key : ByteObjectHashMap.this.keys) { if (isNonSentinel(key)) { result += key; } } return result; } public byte max() { if (ByteObjectHashMap.this.isEmpty()) { throw new NoSuchElementException(); } byte max = (byte) 0; boolean isMaxSet = false; if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { max = EMPTY_KEY; isMaxSet = true; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { max = REMOVED_KEY; isMaxSet = true; } } for (int i = 0; i < ByteObjectHashMap.this.keys.length; i++) { if (isNonSentinel(ByteObjectHashMap.this.keys[i]) && (!isMaxSet || max < ByteObjectHashMap.this.keys[i])) { max = ByteObjectHashMap.this.keys[i]; isMaxSet = true; } } return max; } public byte maxIfEmpty(byte defaultValue) { if (ByteObjectHashMap.this.isEmpty()) { return defaultValue; } return this.max(); } public byte min() { if (ByteObjectHashMap.this.isEmpty()) { throw new NoSuchElementException(); } byte min = (byte) 0; boolean isMinSet = false; if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { min = EMPTY_KEY; isMinSet = true; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey && !isMinSet) { min = REMOVED_KEY; isMinSet = true; } } for (int i = 0; i < ByteObjectHashMap.this.keys.length; i++) { if (isNonSentinel(ByteObjectHashMap.this.keys[i]) && (!isMinSet || ByteObjectHashMap.this.keys[i] < min)) { min = ByteObjectHashMap.this.keys[i]; isMinSet = true; } } return min; } public byte minIfEmpty(byte defaultValue) { if (ByteObjectHashMap.this.isEmpty()) { return defaultValue; } return this.min(); } public double average() { if (ByteObjectHashMap.this.isEmpty()) { throw new ArithmeticException(); } return (double) this.sum() / (double) this.size(); } public double median() { if (ByteObjectHashMap.this.isEmpty()) { throw new ArithmeticException(); } byte[] sortedArray = this.toSortedArray(); int middleIndex = sortedArray.length >> 1; if (sortedArray.length > 1 && (sortedArray.length & 1) == 0) { byte first = sortedArray[middleIndex]; byte second = sortedArray[middleIndex - 1]; return ((double) first + (double) second) / 2.0; } return (double) sortedArray[middleIndex]; } public byte[] toSortedArray() { byte[] array = this.toArray(); Arrays.sort(array); return array; } public MutableByteList toSortedList() { return ByteArrayList.newList(this).sortThis(); } public byte[] toArray() { int size = ByteObjectHashMap.this.size(); final byte[] result = new byte[size]; ByteObjectHashMap.this.forEachKey(new ByteProcedure() { private int index; public void value(byte each) { result[this.index] = each; this.index++; } }); return result; } public boolean contains(byte value) { return ByteObjectHashMap.this.containsKey(value); } public boolean containsAll(byte... source) { for (byte item : source) { if (!ByteObjectHashMap.this.containsKey(item)) { return false; } } return true; } public boolean containsAll(ByteIterable source) { ByteIterator iterator = source.byteIterator(); while (iterator.hasNext()) { if (!ByteObjectHashMap.this.containsKey(iterator.next())) { return false; } } return true; } public MutableByteList toList() { return ByteArrayList.newList(this); } public MutableByteSet toSet() { return ByteHashSet.newSet(this); } public MutableByteBag toBag() { return ByteHashBag.newBag(this); } public LazyByteIterable asLazy() { return new LazyByteIterableAdapter(this); } public ByteSet freeze() { ByteObjectHashMap.this.copyKeysOnWrite = true; boolean containsZeroKey = false; boolean containsOneKey = false; if (ByteObjectHashMap.this.sentinelValues != null) { containsZeroKey = ByteObjectHashMap.this.sentinelValues.containsZeroKey; containsOneKey = ByteObjectHashMap.this.sentinelValues.containsOneKey; } return new ImmutableByteMapKeySet(ByteObjectHashMap.this.keys, ByteObjectHashMap.this.occupiedWithData, containsZeroKey, containsOneKey); } public ImmutableByteSet toImmutable() { return ByteSets.immutable.withAll(this); } public int size() { return ByteObjectHashMap.this.size(); } public boolean isEmpty() { return ByteObjectHashMap.this.isEmpty(); } public boolean notEmpty() { return ByteObjectHashMap.this.notEmpty(); } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (!(obj instanceof ByteSet)) { return false; } ByteSet other = (ByteSet) obj; return this.size() == other.size() && this.containsAll(other.toArray()); } @Override public int hashCode() { int result = 0; if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { result += (int) EMPTY_KEY; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { result += (int) REMOVED_KEY; } } for (int i = 0; i < ByteObjectHashMap.this.keys.length; i++) { if (isNonSentinel(ByteObjectHashMap.this.keys[i])) { result += (int) ByteObjectHashMap.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 (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { appendable.append(String.valueOf(EMPTY_KEY)); first = false; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { if (!first) { appendable.append(separator); } appendable.append(String.valueOf(REMOVED_KEY)); first = false; } } for (byte key : ByteObjectHashMap.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); } } } private class KeysSetIterator implements MutableByteIterator { private int count; private int position; private byte lastKey; private boolean handledZeroKey; private boolean handledOneKey; private boolean canRemove; public boolean hasNext() { return this.count != ByteObjectHashMap.this.size(); } public byte next() { if (!this.hasNext()) { throw new NoSuchElementException(); } this.count++; this.canRemove = true; if (!this.handledZeroKey) { this.handledZeroKey = true; if (ByteObjectHashMap.this.containsKey(EMPTY_KEY)) { this.lastKey = EMPTY_KEY; return this.lastKey; } } if (!this.handledOneKey) { this.handledOneKey = true; if (ByteObjectHashMap.this.containsKey(REMOVED_KEY)) { this.lastKey = REMOVED_KEY; return this.lastKey; } } byte[] keys = ByteObjectHashMap.this.keys; while (!isNonSentinel(keys[this.position])) { this.position++; } this.lastKey = keys[this.position]; this.position++; return this.lastKey; } public void remove() { if (!this.canRemove) { throw new IllegalStateException(); } ByteObjectHashMap.this.removeKey(this.lastKey); this.count--; this.canRemove = false; } } public Collection values() { return new ValuesCollection(); } public LazyByteIterable keysView() { return new KeysView(); } public RichIterable> keyValuesView() { return new KeyValuesView(); } protected class ValuesCollection implements Collection { public boolean add(V v) { throw new UnsupportedOperationException("Cannot call add() on " + this.getClass().getSimpleName()); } public boolean addAll(Collection collection) { throw new UnsupportedOperationException("Cannot call addAll() on " + this.getClass().getSimpleName()); } public void clear() { ByteObjectHashMap.this.clear(); } public boolean contains(Object o) { return ByteObjectHashMap.this.containsValue(o); } public boolean containsAll(Collection collection) { // todo: this is N^2. if c is large, we should copy the values to a set. return Iterate.allSatisfy(collection, Predicates.in(this)); } public boolean isEmpty() { return ByteObjectHashMap.this.isEmpty(); } public Iterator iterator() { return ByteObjectHashMap.this.iterator(); } public boolean remove(Object o) { // this is so slow that the extra overhead of the iterator won't be noticeable if (o == null) { for (Iterator it = this.iterator(); it.hasNext(); ) { if (it.next() == null) { it.remove(); return true; } } } else { for (Iterator it = this.iterator(); it.hasNext(); ) { V o2 = it.next(); if (o == o2 || o2.equals(o)) { it.remove(); return true; } } } return false; } public boolean removeAll(Collection collection) { // todo: this is N^2. if c is large, we should copy the values to a set. boolean changed = false; for (Object obj : collection) { if (this.remove(obj)) { changed = true; } } return changed; } public boolean retainAll(Collection collection) { boolean modified = false; Iterator e = this.iterator(); while (e.hasNext()) { if (!collection.contains(e.next())) { e.remove(); modified = true; } } return modified; } public int size() { return ByteObjectHashMap.this.size(); } public Object[] toArray() { return ByteObjectHashMap.this.toArray(); } public T[] toArray(T[] result) { return ByteObjectHashMap.this.toArray(result); } } private class KeysView extends AbstractLazyByteIterable { public ByteIterator byteIterator() { return new UnmodifiableByteIterator(new KeysSetIterator()); } public void forEach(ByteProcedure procedure) { this.each(procedure); } public void each(ByteProcedure procedure) { ByteObjectHashMap.this.forEachKey(procedure); } } private class KeyValuesView extends AbstractLazyIterable> { public void each(Procedure> procedure) { if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { procedure.value(PrimitiveTuples.pair(EMPTY_KEY, ByteObjectHashMap.this.sentinelValues.zeroValue)); } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { procedure.value(PrimitiveTuples.pair(REMOVED_KEY, ByteObjectHashMap.this.sentinelValues.oneValue)); } } for (int i = 0; i < ByteObjectHashMap.this.keys.length; i++) { if (isNonSentinel(ByteObjectHashMap.this.keys[i])) { procedure.value(PrimitiveTuples.pair(ByteObjectHashMap.this.keys[i], ByteObjectHashMap.this.values[i])); } } } public void forEachWithIndex(ObjectIntProcedure> objectIntProcedure) { int index = 0; if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { objectIntProcedure.value(PrimitiveTuples.pair(EMPTY_KEY, ByteObjectHashMap.this.sentinelValues.zeroValue), index); index++; } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { objectIntProcedure.value(PrimitiveTuples.pair(REMOVED_KEY, ByteObjectHashMap.this.sentinelValues.oneValue), index); index++; } } for (int i = 0; i < ByteObjectHashMap.this.keys.length; i++) { if (isNonSentinel(ByteObjectHashMap.this.keys[i])) { objectIntProcedure.value(PrimitiveTuples.pair(ByteObjectHashMap.this.keys[i], ByteObjectHashMap.this.values[i]), index); index++; } } } public

void forEachWith(Procedure2, ? super P> procedure, P parameter) { if (ByteObjectHashMap.this.sentinelValues != null) { if (ByteObjectHashMap.this.sentinelValues.containsZeroKey) { procedure.value(PrimitiveTuples.pair(EMPTY_KEY, ByteObjectHashMap.this.sentinelValues.zeroValue), parameter); } if (ByteObjectHashMap.this.sentinelValues.containsOneKey) { procedure.value(PrimitiveTuples.pair(REMOVED_KEY, ByteObjectHashMap.this.sentinelValues.oneValue), parameter); } } for (int i = 0; i < ByteObjectHashMap.this.keys.length; i++) { if (isNonSentinel(ByteObjectHashMap.this.keys[i])) { procedure.value(PrimitiveTuples.pair(ByteObjectHashMap.this.keys[i], ByteObjectHashMap.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 ByteObjectPair next() { if (!this.hasNext()) { throw new NoSuchElementException("next() called, but the iterator is exhausted"); } this.count++; if (!this.handledZero) { this.handledZero = true; if (ByteObjectHashMap.this.containsKey(EMPTY_KEY)) { return PrimitiveTuples.pair(EMPTY_KEY, ByteObjectHashMap.this.sentinelValues.zeroValue); } } if (!this.handledOne) { this.handledOne = true; if (ByteObjectHashMap.this.containsKey(REMOVED_KEY)) { return PrimitiveTuples.pair(REMOVED_KEY, ByteObjectHashMap.this.sentinelValues.oneValue); } } byte[] keys = ByteObjectHashMap.this.keys; while (!isNonSentinel(keys[this.position])) { this.position++; } ByteObjectPair result = PrimitiveTuples.pair(keys[this.position], ByteObjectHashMap.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 != ByteObjectHashMap.this.size(); } } } }