/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC.

 */

package com.sun.xml.internal.fastinfoset.util;

import com.sun.xml.internal.fastinfoset.CommonResourceBundle;

public class StringArray extends ValueArray {

    public String[] _array;

    private StringArray _readOnlyArray;

    private boolean _clear;

    public StringArray(int initialCapacity, int maximumCapacity, boolean clear) {

        _array = new String[initialCapacity];

        _maximumCapacity = maximumCapacity;

        _clear = clear;

    }

    public StringArray() {

        this(DEFAULT_CAPACITY, MAXIMUM_CAPACITY, false);

    }

    public final void clear() {

        if (_clear) for (int i = _readOnlyArraySize; i < _size; i++) {

            _array[i] = null;

        }

        _size = _readOnlyArraySize;

    }

    /**

     * Returns cloned version of internal String[].

     * @return cloned version of internal String[].

     */

    public final String[] getArray() {

        if (_array == null) return null;

        final String[] clonedArray = new String[_array.length];

        System.arraycopy(_array, 0, clonedArray, 0, _array.length);

        return clonedArray;

    }

    public final void setReadOnlyArray(ValueArray readOnlyArray, boolean clear) {

        if (!(readOnlyArray instanceof StringArray)) {

            throw new IllegalArgumentException(CommonResourceBundle.getInstance().

                    getString("message.illegalClass", new Object[]{readOnlyArray}));

        }

        setReadOnlyArray((StringArray)readOnlyArray, clear);

    }

    public final void setReadOnlyArray(StringArray readOnlyArray, boolean clear) {

        if (readOnlyArray != null) {

            _readOnlyArray = readOnlyArray;

            _readOnlyArraySize = readOnlyArray.getSize();

            if (clear) {

                clear();

            }

            _array = getCompleteArray();

            _size = _readOnlyArraySize;

        }

    }

    public final String[] getCompleteArray() {

        if (_readOnlyArray == null) {

            // Return cloned version of internal _array

            return getArray();

//            return _array;

        } else {

            final String[] ra = _readOnlyArray.getCompleteArray();

            final String[] a = new String[_readOnlyArraySize + _array.length];

            System.arraycopy(ra, 0, a, 0, _readOnlyArraySize);

            return a;

        }

    }

    public final String get(int i) {

        return _array[i];

    }

    public final int add(String s) {

        if (_size == _array.length) {

            resize();

        }

       _array[_size++] = s;

       return _size;

    }

    protected final void resize() {

        if (_size == _maximumCapacity) {

            throw new ValueArrayResourceException(CommonResourceBundle.getInstance().getString("message.arrayMaxCapacity"));

        }

        int newSize = _size * 3 / 2 + 1;

        if (newSize > _maximumCapacity) {

            newSize = _maximumCapacity;

        }

        final String[] newArray = new String[newSize];

        System.arraycopy(_array, 0, newArray, 0, _size);

        _array = newArray;

    }

}