/*
 * Copyright (c) 2014, Michael
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the jo-widgets.org nor the
 *   names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

package org.jowidgets.util.collection;

import java.util.Iterator;

import org.jowidgets.util.Assert;
import org.jowidgets.util.wrapper.IWrapper;
import org.jowidgets.util.wrapper.WrapperUtil;

public class UnmodifieableArrayWrapper<VALUE_TYPE> implements
        IUnmodifiableArray<VALUE_TYPE>,
        IWrapper<IUnmodifiableArray<VALUE_TYPE>> {

    private final IUnmodifiableArray<VALUE_TYPE> original;

    public UnmodifieableArrayWrapper(final IUnmodifiableArray<VALUE_TYPE> original) {
        Assert.paramNotNull(original, "original");
        this.original = original;
    }

    @Override
    public final Iterator<VALUE_TYPE> iterator() {
        return original.iterator();
    }

    @Override
    public final int size() {
        return original.size();
    }

    @Override
    public final VALUE_TYPE get(final int index) {
        return original.get(index);
    }

    @Override
    public String toString() {
        return "UnmodifieableArrayWrapper [original=" + original + "]";
    }

    @Override
    public IUnmodifiableArray<VALUE_TYPE> unwrap() {
        return WrapperUtil.unwrap(this);
    }

    @Override
    public int hashCode() {
        final IUnmodifiableArray<VALUE_TYPE> unwrappedThis = unwrap();

        final int prime = 31;
        int result = 1;
        result = prime * result + ((unwrappedThis == null) ? 0 : unwrappedThis.hashCode());
        return result;
    }

    @Override
    public boolean equals(final Object obj) {
        return WrapperUtil.nullCompatibleEquivalence(this, obj);
    }

}