/**
*
* Funf: Open Sensing Framework
* Copyright (C) 2010-2011 Nadav Aharony, Wei Pan, Alex Pentland.
* Acknowledgments: Alan Gardner
* Contact: nadav@media.mit.edu
*
* This file is part of Funf.
*
* Funf 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.
*
* Funf 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 Funf. If not, see <http://www.gnu.org/licenses/>.
*
*/
package edu.mit.media.funf.util;
import java.util.Collection;
import java.util.Iterator;
public class StringUtil {
private StringUtil() {
}
/**
* Convenience function for joining strings using a delimeter
* @param strings
* @param delimeter
* @return
*/
public static String join(final Collection<?> strings, String delimeter) {
if (delimeter == null) {
delimeter = ",";
}
if (strings.isEmpty()) {
return "";
}
StringBuffer joined = new StringBuffer();
Iterator<?> stringIter = strings.iterator();
joined.append(stringIter.next().toString());
while (stringIter.hasNext()) {
joined.append(delimeter);
joined.append(stringIter.next().toString());
}
return joined.toString();
}
public static String simpleFilesafe(String value) {
return value == null ? "" : value.replaceAll("[^a-zA-Z0-9-_\\.]", "_").toLowerCase();
}
}