Java tutorial
/* Copywrite 2013-2016 Christian Moll, Will Winder, Bob Jones 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.massabot.codesender.utils; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.Properties; import java.util.logging.Level; import java.util.logging.Logger; import org.apache.commons.io.FileUtils; import com.google.gson.Gson; import com.google.gson.GsonBuilder; import com.massabot.codesender.i18n.Localization; /** * * @author moll */ public class SettingsFactory { private static final Logger logger = Logger.getLogger(SettingsFactory.class.getName()); private static final String USER_HOME = "user.home"; private static final String FALSE = "false"; public static final String SETTINGS_DIRECTORY_NAME = "ugs"; public static final String PROPERTIES_FILENAME = "UniversalGcodeSender.properties"; public static final String JSON_FILENAME = "UniversalGcodeSender.json"; public static final String MAC_LIBRARY = "/Library/Preferences/"; public static Settings loadSettings() { migrateOldSettings(); // the defaults are now in the settings bean Settings out = null; File settingsFile = getSettingsFile(); if (!settingsFile.exists()) { out = new Settings(); } else { try { // logger.log(Level.INFO, "{0}: {1}", new // Object[]{Localization.getString("settings.log.location"), settingsFile}); logger.log(Level.INFO, "Log location: {0}", settingsFile.getAbsolutePath()); logger.info("Loading settings."); out = new Gson().fromJson(new FileReader(settingsFile), Settings.class); if (out != null) { out.finalizeInitialization(); } // Localized setting not available here. // logger.info(Localization.getString("settings.log.loading")); } catch (FileNotFoundException ex) { // logger.warning(Localization.getString("settings.log.error")); logger.log(Level.SEVERE, "Can't load settings, using defaults.", ex); } } if (out == null) return new Settings(); return out; } public static void saveSettings(Settings settings) { logger.info(Localization.getString("settings.log.saving")); try { // Save json file. File jsonFile = getSettingsFile(); try (FileWriter fileWriter = new FileWriter(jsonFile)) { Gson gson = new GsonBuilder().setPrettyPrinting().create(); fileWriter.write(gson.toJson(settings, Settings.class)); } } catch (Exception e) { e.printStackTrace(); logger.warning(Localization.getString("settings.log.saveerror")); } } /** * This is public in case other classes need to save settings somewhere. */ public static File getSettingsDirectory() { String homeDir = System.getProperty(USER_HOME); String osName = System.getProperty("os.name").toLowerCase(); if (osName.contains("mac")) { homeDir = homeDir + MAC_LIBRARY; } if (!homeDir.endsWith(File.separator)) { homeDir = homeDir + File.separator + "."; } File dir = new File(homeDir + SETTINGS_DIRECTORY_NAME); dir.mkdirs(); return dir; } /** * Convert legacy property file to JSON, move files from top level setting directory to UGS * settings directory. */ private static void migrateOldSettings() { File newSettingsDir = getSettingsDirectory(); File oldSettingDir = newSettingsDir.getParentFile(); File oldPropertyFile = new File(oldSettingDir, PROPERTIES_FILENAME); File oldJsonFile = new File(oldSettingDir, JSON_FILENAME); // Convert property file in old location to json file in new location. if (oldPropertyFile.exists()) { try { Settings out = new Settings(); // logger.log(Level.INFO, "{0}: {1}", new // Object[]{Localization.getString("settings.log.location"), settingsFile}); logger.log(Level.INFO, "Log location: {0}", oldPropertyFile.getAbsolutePath()); Properties properties = new Properties(); properties.load(new FileInputStream(oldPropertyFile)); out.setLastOpenedFilename(properties.getProperty("last.dir", System.getProperty(USER_HOME))); out.setPort(properties.getProperty("port", "")); out.setPortRate(properties.getProperty("port.rate", "9600")); out.setManualModeEnabled(Boolean.valueOf(properties.getProperty("manualMode.enabled", FALSE))); out.setManualModeStepSize(Double.valueOf(properties.getProperty("manualMode.stepsize", "1"))); out.setScrollWindowEnabled(Boolean.valueOf(properties.getProperty("scrollWindow.enabled", "true"))); out.setVerboseOutputEnabled( Boolean.valueOf(properties.getProperty("verboseOutput.enabled", FALSE))); out.setFirmwareVersion(properties.getProperty("firmwareVersion", "GRBL")); out.setSingleStepMode(Boolean.valueOf(properties.getProperty("singleStepMode", FALSE))); out.setStatusUpdatesEnabled( Boolean.valueOf(properties.getProperty("statusUpdatesEnabled", "true"))); out.setStatusUpdateRate(Integer.valueOf(properties.getProperty("statusUpdateRate", "200"))); out.setDisplayStateColor(Boolean.valueOf(properties.getProperty("displayStateColor", "true"))); out.updateMacro(1, null, null, properties.getProperty("customGcode1", "G0 X0 Y0;")); out.updateMacro(2, null, null, properties.getProperty("customGcode2", "G0 G91 X10;G0 G91 Y10;")); out.updateMacro(3, null, null, properties.getProperty("customGcode3", "")); out.updateMacro(4, null, null, properties.getProperty("customGcode4", "")); out.updateMacro(5, null, null, properties.getProperty("customGcode5", "")); out.setLanguage(properties.getProperty("language", "en_US")); saveSettings(out); // Delete the old settings file if it exists. oldPropertyFile.delete(); } catch (IOException ex) { Logger.getLogger(SettingsFactory.class.getName()).log(Level.SEVERE, null, ex); } } // Move old json file from old location to new location. else if (oldJsonFile.exists()) { try { // If the new file doesn't exist, move the old one. if (!getSettingsFile().exists()) { FileUtils.moveFile(oldJsonFile, getSettingsFile()); } // Delete the old settings file if it exists. oldJsonFile.delete(); } catch (IOException ex) { Logger.getLogger(SettingsFactory.class.getName()).log(Level.SEVERE, null, ex); } } } private static File getSettingsFile() { File settingDir = SettingsFactory.getSettingsDirectory(); File json = new File(settingDir, JSON_FILENAME); return json; } }