com.anrisoftware.fractions.calculator.parser.FindFractionService Maven / Gradle / Ivy

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/*
 * Copyright 2013-2015 Erwin Müller 
 *
 * This file is part of fractions-calculator-cli.
 *
 * fractions-calculator-cli is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any
 * later version.
 *
 * fractions-calculator-cli 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 for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * fractions-calculator-cli. If not, see .
 */
package com.anrisoftware.fractions.calculator.parser;

import static java.util.ServiceLoader.load;

import javax.inject.Inject;

import com.anrisoftware.fractions.core.FractionService;

/**
 * Finds the continued fraction service.
 * 
 * @author Erwin Mueller, [email protected]
 * @since 2.0
 */
class FindFractionService {

	@Inject
	private FindFractionServiceLogger log;

	/**
	 * Finds the continued fraction service with the specified information.
	 * 
	 * @param info
	 *            the service information.
	 * 
	 * @return the {@link FractionService}.
	 * 
	 * @throws ArgsException
	 *             if the service with the specified information could not be
	 *             found.
	 */
	FractionService findService(Object info) throws ArgsException {
		for (FractionService service : load(FractionService.class)) {
			if (service.getInfo().equals(info)) {
				return service;
			}
		}
		throw log.errorFindService(info);
	}
}