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Assertions library provides facilities for the unit testing

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///////////////////////////////////////////////////////////////////////////////////////////////////
// Assertions library provides facilities for the unit testing.
// Copyright (C) 2017 Dmitry Shapovalov.
//
// This file is part of assertions library.
//
// Assertions library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Assertions library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see .
///////////////////////////////////////////////////////////////////////////////////////////////////
package ru.d_shap.assertions.asimp.array;

import ru.d_shap.assertions.asimp.HexString;
import ru.d_shap.assertions.converter.ConverterArgumentHelper;
import ru.d_shap.assertions.converter.ValueConverterProvider;

/**
 * Value converter from the int array to the hex string.
 *
 * @author Dmitry Shapovalov
 */
public final class IntArrayToHexStringValueConverter implements ValueConverterProvider {

    /**
     * Create new object.
     */
    public IntArrayToHexStringValueConverter() {
        super();
    }

    @Override
    public Class getValueClass() {
        return int[].class;
    }

    @Override
    public Class getTargetClass() {
        return HexString.class;
    }

    @Override
    public Object convert(final Object value, final Object... arguments) {
        int[] castedValue = ConverterArgumentHelper.getValue(value, int[].class);
        ConverterArgumentHelper.checkArgumentsLength(arguments, 2);
        int castedStart = ConverterArgumentHelper.getArgument(arguments, 0, Integer.class);
        int castedEnd = ConverterArgumentHelper.getArgument(arguments, 1, Integer.class);

        int start = Math.max(castedStart, 0);
        int end = Math.min(castedEnd, castedValue.length);
        HexString hexString = new HexString();
        for (int i = start; i < end; i++) {
            int shortValue = castedValue[i];
            hexString.addValue(shortValue);
        }
        return hexString;
    }

}