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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.lazy.primitive;

import java.util.NoSuchElementException;

import com.gs.collections.api.BooleanIterable;
import com.gs.collections.api.LazyBooleanIterable;
import com.gs.collections.api.bag.primitive.MutableBooleanBag;
import com.gs.collections.api.block.procedure.primitive.BooleanProcedure;
import com.gs.collections.api.iterator.BooleanIterator;
import com.gs.collections.api.list.primitive.BooleanList;
import com.gs.collections.api.list.primitive.MutableBooleanList;
import com.gs.collections.api.set.primitive.MutableBooleanSet;
import com.gs.collections.impl.bag.mutable.primitive.BooleanHashBag;
import com.gs.collections.impl.lazy.ReverseIterable;
import com.gs.collections.impl.list.mutable.primitive.BooleanArrayList;
import com.gs.collections.impl.set.mutable.primitive.BooleanHashSet;

/**
 * This file was automatically generated from template file reversePrimitiveIterable.stg.
 *
 * @see ReverseIterable
 * @since 5.0.
 */
public class ReverseBooleanIterable extends AbstractLazyBooleanIterable
{
    private final BooleanList adapted;

    public ReverseBooleanIterable(BooleanList newAdapted)
    {
        this.adapted = newAdapted;
    }

    public static ReverseBooleanIterable adapt(BooleanList booleanList)
    {
        return new ReverseBooleanIterable(booleanList);
    }

    public BooleanIterator booleanIterator()
    {
        return new ReverseBooleanIterator();
    }

    /**
     * @since 7.0.
     */
    public void each(BooleanProcedure procedure)
    {
        BooleanIterator iterator = this.booleanIterator();
        while (iterator.hasNext())
        {
            procedure.value(iterator.next());
        }
    }

    @Override
    public boolean[] toArray()
    {
        boolean[] results = new boolean[this.adapted.size()];
        int index = 0;
        BooleanIterator iterator = this.booleanIterator();
        while (iterator.hasNext())
        {
            results[index] = iterator.next();
            index++;
        }
        return results;
    }

    @Override
    public boolean contains(boolean value)
    {
        return this.adapted.contains(value);
    }

    @Override
    public boolean containsAll(boolean... source)
    {
        return this.adapted.containsAll(source);
    }

    @Override
    public boolean containsAll(BooleanIterable source)
    {
        return this.adapted.containsAll(source);
    }

    @Override
    public int size()
    {
        return this.adapted.size();
    }

    @Override
    public boolean isEmpty()
    {
        return this.adapted.isEmpty();
    }

    @Override
    public boolean notEmpty()
    {
        return this.adapted.notEmpty();
    }

    @Override
    public MutableBooleanList toList()
    {
        return BooleanArrayList.newList(this);
    }

    @Override
    public MutableBooleanSet toSet()
    {
        return BooleanHashSet.newSet(this);
    }

    @Override
    public MutableBooleanBag toBag()
    {
        return BooleanHashBag.newBag(this);
    }

    @Override
    public LazyBooleanIterable asLazy()
    {
        return new LazyBooleanIterableAdapter(this);
    }

    private class ReverseBooleanIterator implements BooleanIterator
    {
        /**
         * Index of element to be returned by subsequent call to next.
         */
        private int currentIndex = ReverseBooleanIterable.this.adapted.size() - 1;

        public boolean hasNext()
        {
            return this.currentIndex != -1;
        }

        public boolean next()
        {
            if (!this.hasNext())
            {
                throw new NoSuchElementException();
            }
            boolean next = ReverseBooleanIterable.this.adapted.get(this.currentIndex);
            this.currentIndex--;
            return next;
        }
    }
}