Package com.gs.collections.impl.list.immutable.primitive

Source Code of com.gs.collections.impl.list.immutable.primitive.ImmutableShortArrayList$InternalShortIterator

/*
* 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.list.immutable.primitive;

import java.io.IOException;
import java.io.Serializable;
import java.util.Arrays;
import java.util.NoSuchElementException;

import com.gs.collections.api.ShortIterable;
import com.gs.collections.api.LazyShortIterable;
import com.gs.collections.api.bag.primitive.MutableShortBag;
import com.gs.collections.api.block.function.primitive.ShortToObjectFunction;
import com.gs.collections.api.block.function.primitive.ObjectShortToObjectFunction;
import com.gs.collections.api.block.function.primitive.ObjectShortIntToObjectFunction;
import com.gs.collections.api.block.predicate.primitive.ShortPredicate;
import com.gs.collections.api.block.procedure.primitive.ShortProcedure;
import com.gs.collections.api.block.procedure.primitive.ShortIntProcedure;
import com.gs.collections.api.iterator.ShortIterator;
import com.gs.collections.api.list.ImmutableList;
import com.gs.collections.api.list.primitive.ImmutableShortList;
import com.gs.collections.api.list.primitive.ShortList;
import com.gs.collections.api.list.primitive.MutableShortList;
import com.gs.collections.api.set.primitive.MutableShortSet;
import com.gs.collections.impl.bag.mutable.primitive.ShortHashBag;
import com.gs.collections.impl.factory.primitive.ShortLists;
import com.gs.collections.impl.lazy.primitive.LazyShortIterableAdapter;
import com.gs.collections.impl.lazy.primitive.ReverseShortIterable;
import com.gs.collections.impl.list.mutable.FastList;
import com.gs.collections.impl.list.mutable.primitive.ShortArrayList;
import com.gs.collections.impl.set.mutable.primitive.ShortHashSet;
import net.jcip.annotations.Immutable;

/**
* ImmutableShortArrayList is the non-modifiable equivalent of {@link ShortArrayList}.
* It wraps a Java short array.
* This file was automatically generated from template file immutablePrimitiveArrayList.stg.
*
* @since 3.2.
*/
@Immutable
final class ImmutableShortArrayList
        implements ImmutableShortList, Serializable
{
    private static final long serialVersionUID = 1L;
    private final short[] items;

    private ImmutableShortArrayList(short[] newElements)
    {
        if (newElements.length <= 1)
        {
            throw new IllegalArgumentException("Use ShortLists.immutable.with() to instantiate an optimized collection");
        }
        this.items = newElements;
    }

    public static ImmutableShortArrayList newList(ShortIterable iterable)
    {
        return new ImmutableShortArrayList(iterable.toArray());
    }

    public static ImmutableShortArrayList newListWith(short... elements)
    {
        short[] newArray = new short[elements.length];
        System.arraycopy(elements, 0, newArray, 0, elements.length);
        return new ImmutableShortArrayList(newArray);
    }

    public short get(int index)
    {
        return this.items[index];
    }

    public short getFirst()
    {
        return this.items[0];
    }

    public short getLast()
    {
        return this.items[this.items.length - 1];
    }

    public int indexOf(short value)
    {
        for (int i = 0; i < this.items.length; i++)
        {
            if (this.items[i] == value)
            {
                return i;
            }
        }
        return -1;
    }

    public int lastIndexOf(short value)
    {
        for (int i = this.items.length - 1; i >= 0; i--)
        {
            if (this.items[i] == value)
            {
                return i;
            }
        }
        return -1;
    }

    public ShortIterator shortIterator()
    {
        return new InternalShortIterator();
    }

    public void forEach(ShortProcedure procedure)
    {
        for (short item : this.items)
        {
            procedure.value(item);
        }
    }

    public void forEachWithIndex(ShortIntProcedure procedure)
    {
        for (int i = 0; i < this.items.length; i++)
        {
            procedure.value(this.items[i], i);
        }
    }

    public int count(ShortPredicate predicate)
    {
        int count = 0;
        for (short item : this.items)
        {
            if (predicate.accept(item))
            {
                count++;
            }
        }
        return count;
    }

    public boolean anySatisfy(ShortPredicate predicate)
    {
        for (short item : this.items)
        {
            if (predicate.accept(item))
            {
                return true;
            }
        }
        return false;
    }

    public boolean allSatisfy(ShortPredicate predicate)
    {
        for (short item : this.items)
        {
            if (!predicate.accept(item))
            {
                return false;
            }
        }
        return true;
    }

    public boolean noneSatisfy(ShortPredicate predicate)
    {
        for (short item : this.items)
        {
            if (predicate.accept(item))
            {
                return false;
            }
        }
        return true;
    }

    public ImmutableShortList select(ShortPredicate predicate)
    {
        ShortArrayList result = new ShortArrayList();
        for (short item : this.items)
        {
            if (predicate.accept(item))
            {
                result.add(item);
            }
        }
        return result.toImmutable();
    }

    public ImmutableShortList reject(ShortPredicate predicate)
    {
        ShortArrayList result = new ShortArrayList();
        for (short item : this.items)
        {
            if (!predicate.accept(item))
            {
                result.add(item);
            }
        }
        return result.toImmutable();
    }

    public short detectIfNone(ShortPredicate predicate, short ifNone)
    {
        for (short item : this.items)
        {
            if (predicate.accept(item))
            {
                return item;
            }
        }
        return ifNone;
    }

    public <V> ImmutableList<V> collect(ShortToObjectFunction<? extends V> function)
    {
        FastList<V> target = FastList.newList(this.items.length);
        for (short item : this.items)
        {
            target.add(function.valueOf(item));
        }
        return target.toImmutable();
    }

    public long sum()
    {
        long result = 0L;
        for (short item : this.items)
        {
            result += item;
        }
        return result;
    }

    public short max()
    {
        short max = this.items[0];
        for (int i = 1; i < this.items.length; i++)
        {
            short value = this.items[i];
            if (max < value)
            {
                max = value;
            }
        }
        return max;
    }

    public short maxIfEmpty(short defaultValue)
    {
        return this.max();
    }

    public short min()
    {
        short min = this.items[0];
        for (int i = 1; i < this.items.length; i++)
        {
            short value = this.items[i];
            if (value < min)
            {
                min = value;
            }
        }
        return min;
    }

    public short minIfEmpty(short defaultValue)
    {
        return this.min();
    }

    public double average()
    {
        return (double) this.sum() / (double) this.size();
    }

    public double median()
    {
        short[] sortedArray = this.toSortedArray();
        int middleIndex = sortedArray.length >> 1;
        if (sortedArray.length > 1 && (sortedArray.length & 1) == 0)
        {
            short first = sortedArray[middleIndex];
            short second = sortedArray[middleIndex - 1];
            return ((double) first + (double) second) / 2.0;
        }
        return (double) sortedArray[middleIndex];
    }

    public short[] toSortedArray()
    {
        short[] array = this.toArray();
        Arrays.sort(array);
        return array;
    }

    public long dotProduct(ShortList list)
    {
        if (this.size() != list.size())
        {
            throw new IllegalArgumentException("Lists used in dotProduct must be the same size");
        }
        long sum = 0L;
        for (int i = 0; i < this.size(); i++)
        {
            sum += (long) this.items[i] * list.get(i);
        }
        return sum;
    }

    public LazyShortIterable asReversed()
    {
        return ReverseShortIterable.adapt(this);
    }

    public MutableShortList toSortedList()
    {
        return ShortArrayList.newList(this).sortThis();
    }

    public short[] toArray()
    {
        short[] newItems = new short[this.items.length];
        System.arraycopy(this.items, 0, newItems, 0, this.items.length);
        return newItems;
    }

    public boolean contains(short value)
    {
        for (short item : this.items)
        {
            if (item == value)
            {
                return true;
            }
        }
        return false;
    }

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

    public boolean containsAll(ShortIterable source)
    {
        for (ShortIterator iterator = source.shortIterator(); iterator.hasNext(); )
        {
            if (!this.contains(iterator.next()))
            {
                return false;
            }
        }
        return true;
    }

    public MutableShortList toList()
    {
        return ShortArrayList.newList(this);
    }

    public MutableShortSet toSet()
    {
        return ShortHashSet.newSet(this);
    }

    public MutableShortBag toBag()
    {
        return ShortHashBag.newBag(this);
    }

    public LazyShortIterable asLazy()
    {
        return new LazyShortIterableAdapter(this);
    }

    public ImmutableShortList toImmutable()
    {
        return this;
    }

    public ImmutableShortArrayList toReversed()
    {
        return ImmutableShortArrayList.newList(this.asReversed());
    }

    public ImmutableShortList newWith(short element)
    {
        short[] newItems = new short[this.items.length + 1];
        System.arraycopy(this.items, 0, newItems, 0, this.items.length);
        newItems[this.items.length] = element;
        return new ImmutableShortArrayList(newItems);
    }

    public ImmutableShortList newWithout(short element)
    {
        int index = this.indexOf(element);
        if (index != -1)
        {
            short[] newItems = new short[this.items.length - 1];
            System.arraycopy(this.items, 0, newItems, 0, index);
            System.arraycopy(this.items, index + 1, newItems, index, this.items.length - index - 1);
            return ShortLists.immutable.with(newItems);
        }
        return this;
    }

    public ImmutableShortList newWithAll(ShortIterable elements)
    {
        short[] newItems = new short[this.items.length + elements.size()];
        System.arraycopy(this.items, 0, newItems, 0, this.items.length);
        int index = 0;
        for (ShortIterator iterator = elements.shortIterator(); iterator.hasNext(); index++)
        {
            newItems[this.items.length + index] = iterator.next();
        }
        return new ImmutableShortArrayList(newItems);
    }

    public ImmutableShortList newWithoutAll(ShortIterable elements)
    {
        MutableShortList mutableShortList = this.toList();
        mutableShortList.removeAll(elements);
        return mutableShortList.toImmutable();
    }

    public int size()
    {
        return this.items.length;
    }

    public boolean isEmpty()
    {
        return false;
    }

    public boolean notEmpty()
    {
        return true;
    }

    public <T> T injectInto(T injectedValue, ObjectShortToObjectFunction<? super T, ? extends T> function)
    {
        T result = injectedValue;
        for (int i = 0; i < this.items.length; i++)
        {
            result = function.valueOf(result, this.items[i]);
        }
        return result;
    }

    public <T> T injectIntoWithIndex(T injectedValue, ObjectShortIntToObjectFunction<? super T, ? extends T> function)
    {
        T result = injectedValue;
        for (int i = 0; i < this.items.length; i++)
        {
            result = function.valueOf(result, this.items[i], i);
        }
        return result;
    }

    @Override
    public boolean equals(Object otherList)
    {
        if (otherList == this)
        {
            return true;
        }
        if (!(otherList instanceof ShortList))
        {
            return false;
        }
        ShortList list = (ShortList) otherList;
        if (this.items.length != list.size())
        {
            return false;
        }
        for (int i = 0; i < this.items.length; i++)
        {
            if (this.items[i] != list.get(i))
            {
                return false;
            }
        }
        return true;
    }

    @Override
    public int hashCode()
    {
        int hashCode = 1;
        for (short item : this.items)
        {
            hashCode = 31 * hashCode + (int) item;
        }
        return hashCode;
    }

    @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);
            for (int i = 0; i < this.items.length; i++)
            {
                if (i > 0)
                {
                    appendable.append(separator);
                }
                short value = this.items[i];
                appendable.append(String.valueOf(value));
            }
            appendable.append(end);
        }
        catch (IOException e)
        {
            throw new RuntimeException(e);
        }
    }

    public ImmutableShortList subList(int fromIndex, int toIndex)
    {
        throw new UnsupportedOperationException("subList not yet implemented!");
    }

    private class InternalShortIterator implements ShortIterator
    {
        /**
         * Index of element to be returned by subsequent call to next.
         */
        private int currentIndex;

        public boolean hasNext()
        {
            return this.currentIndex != ImmutableShortArrayList.this.items.length;
        }

        public short next()
        {
            if (!this.hasNext())
            {
                throw new NoSuchElementException();
            }
            short next = ImmutableShortArrayList.this.items[this.currentIndex];
            this.currentIndex++;
            return next;
        }
    }
}
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