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/** Copyright (C) 2014 www.cybersearch2.com.au //from ww w .java 2 s . co m 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 this program. If not, see <http://www.gnu.org/licenses/> */ package au.com.cybersearch2.classyfy.helper; import android.net.Uri; /** * FileUtils * @author Andrew Bowley * 14/04/2014 */ public class FileUtils { public static void validateUri(Uri uri, String ...nameRegExs ) throws UnsupportedOperationException, IllegalArgumentException { if (uri == null) throw new IllegalArgumentException("Parameter \"uri\" is null"); if (!"file".equals(uri.getScheme())) // TODO support "content" scheme throw new UnsupportedOperationException("Protocol in " + uri.toString() + " not \"file\""); String filename = uri.getLastPathSegment(); int index = filename.lastIndexOf('\\'); if (index != -1) filename = filename.substring(index + 1); if (filename == null) throw new IllegalArgumentException("Parameter \"uri\" has null filename"); for (String nameRegEx: nameRegExs) { if (filename.matches("^" + nameRegEx + "$")) return; } throw new IllegalArgumentException("File " + filename + ": name has invalid format"); } }