Java tutorial
/* Copywrite 2016 Will Winder This file is part of Universal Gcode Sender (UGS). UGS 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. UGS 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 UGS. If not, see <http://www.gnu.org/licenses/>. */ package com.willwinder.universalgcodesender.utils; import com.google.common.collect.Lists; import com.willwinder.universalgcodesender.i18n.Localization; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.URL; import java.util.HashMap; import java.util.List; import org.apache.commons.csv.CSVFormat; import org.apache.commons.csv.CSVRecord; /** * * @author wwinder */ public class GrblLookups { private HashMap<String, String[]> lookups = new HashMap<>(); private static String pathFor(String filename) { return "/resources/grbl/" + filename; } public GrblLookups(String prefix) { String filename = prefix + "_" + Localization.loadedLocale() + ".csv"; URL u = GrblLookups.class.getResource(pathFor(filename)); if (u == null) { filename = prefix + "_en_US.csv"; } try { try (BufferedReader reader = new BufferedReader( new InputStreamReader(GrblLookups.class.getResourceAsStream(pathFor(filename))))) { Iterable<CSVRecord> records = CSVFormat.RFC4180.withFirstRecordAsHeader().parse(reader); for (CSVRecord record : records) { List<String> list = Lists.newArrayList(record.iterator()); lookups.put(record.get(0), list.toArray(new String[0])); } } } catch (IOException ex) { System.out.println("Unable to load GRBL resources."); ex.printStackTrace(); } } public String[] lookup(String idx) { return lookups.get(idx); } }