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/**
 * Copyright (C) 2010-2018 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite 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 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite 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 Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see .
 */
package org.evosuite.symbolic.solver;

import java.math.BigDecimal;

public abstract class ResultParser {

	private static final int BIG_DECIMAL_SCALE = 100;
	protected static Double parseRational(boolean sign, String numeratorStr, String denominatorStr) {
		double value;
		try {
			double numerator = Double.parseDouble(numeratorStr);
			double denominator = Double.parseDouble(denominatorStr);
			value = (numerator / denominator);
		} catch (NumberFormatException ex) {
			// Perhaps the numerator or denominator are just bigger than
			// Long.MAX_VALUE
			BigDecimal bigNumerator = new BigDecimal(numeratorStr);
			BigDecimal bigDenominator = new BigDecimal(denominatorStr);
			BigDecimal rational = bigNumerator.divide(bigDenominator, BIG_DECIMAL_SCALE, BigDecimal.ROUND_UP);
			value = rational.doubleValue();
		}
		if (sign == true) {
			return -value;
		} else {
			return value;
		}
	}

}