/**
 * Copyright (C) 2010-2017 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 <http://www.gnu.org/licenses/>.
 */
package org.evosuite.utils;
public class IterUtil {
	/** Constant <code>DEFAULT_JOIN_SEPARATOR=", "</code> */
	public static final String DEFAULT_JOIN_SEPARATOR = ", ";

	/**
	 * <p>join</p>
	 *
	 * @param iter a {@link java.lang.Iterable} object.
	 * @param separator a {@link java.lang.String} object.
	 * @return a {@link java.lang.String} object.
	 */
	public static String join(Iterable<?> iter, String separator) {
		StringBuilder result = new StringBuilder();
		boolean isFirst = true;
		
		for (Object item : iter) {
			if (!isFirst) {
				result.append(separator);
			}
			
			result.append(item);
			isFirst = false;
		}
		
		return result.toString();
	}
	
	/**
	 * <p>join</p>
	 *
	 * @param iter a {@link java.lang.Iterable} object.
	 * @return a {@link java.lang.String} object.
	 */
	public static String join(Iterable<?> iter) {
		return join(iter, DEFAULT_JOIN_SEPARATOR);
	}
}