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/*
 * SimMetrics - SimMetrics is a java library of Similarity or Distance Metrics,
 * e.g. Levenshtein Distance, that provide float based similarity measures
 * between String Data. All metrics return consistent measures rather than
 * unbounded similarity scores.
 * 
 * Copyright (C) 2014 SimMetrics authors
 * 
 * This file is part of SimMetrics. This program 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.
 * 
 * This program 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
 * SimMetrics. If not, see .
 */

package org.simmetrics.utils;

import static com.google.common.base.Joiner.on;

import org.simmetrics.simplifiers.Simplifier;

/**
 * Simplifier composed of multiple simplifiers. Applies the simplifiers in their
 * iteration order.
 * 
 * This class is immutable and thread-safe if its components are.
 */
public class CompositeSimplifier implements Simplifier {

	private final Iterable simplifiers;

	/**
	 * Constructs a new composite simplifier.
	 * 
	 * @param simplifiers
	 *            an iteration of simplifiers
	 */
	public CompositeSimplifier(Iterable simplifiers) {
		this.simplifiers = simplifiers;
	}

	@Override
	public String simplify(String input) {
		for (Simplifier s : simplifiers) {
			input = s.simplify(input);
		}

		return input;

	}

	@Override
	public String toString() {
		return on(" -> ").join(simplifiers);
	}

}