Java tutorial
/* * CMISBox - Synchronize and share your files with your CMIS Repository * * Copyright (C) 2011 - Andrea Agili * * CMISBox 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. * * CMISBox 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 CMISBox. If not, see <http://www.gnu.org/licenses/>. * */ package com.github.cmisbox.core; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.util.Properties; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.log4j.PropertyConfigurator; import com.github.cmisbox.ui.UI; public class Config { public static enum OS { LINUX, WINDOWS, MACOSX; } private static final String REPOSITORY_USERNAME = "repository.username"; private static final String REPOSITORY_URL = "repository.url"; private static final String REPOSITORY_PASSWORD = "repository.password"; private static final String WATCHPARENT = "watchparent"; private static final String PROPERTIES_FILE = "cmisbox.properties"; private static final String CHANGE_LOG_TOKEN = "change.log.token"; private File configHome; private OS os; private Properties properties; private Log log; private static Config instance = new Config(); public static Config getInstance() { return Config.instance; } private Config() { String osName = System.getProperty("os.name").toLowerCase(); if (osName.equals("linux")) { this.os = OS.LINUX; } else if (osName.startsWith("windows")) { this.os = OS.WINDOWS; } else if (osName.startsWith("mac os x")) { this.os = OS.MACOSX; } else { throw new RuntimeException(Messages.unsupportedOs + ": " + osName); } String homePath = System.getProperty("user.home"); if (this.os == OS.LINUX) { homePath += "/.cmisbox"; } else if (this.os == OS.MACOSX) { homePath += "/Library/Application Support/CMISBox"; } else if (this.os == OS.WINDOWS) { homePath = System.getenv("APPDATA") + "/CMISBox"; } this.configHome = new File(homePath); if (!this.configHome.exists()) { this.configHome.mkdirs(); } File logdir = new File(this.configHome, "logs"); if (!logdir.exists()) { logdir.mkdirs(); } System.getProperties().setProperty("cmisbox.home", this.configHome.getAbsolutePath()); PropertyConfigurator.configure(this.getClass().getResource("log4j.properties")); this.log = LogFactory.getLog(this.getClass()); this.properties = this.createDefaultProperties(); try { File propertiesFile = new File(this.configHome, Config.PROPERTIES_FILE); if (!propertiesFile.exists()) { FileOutputStream out = new FileOutputStream(propertiesFile); this.properties.store(out, null); out.close(); } this.properties.load(new FileInputStream(propertiesFile)); } catch (IOException e) { } this.log.info(Messages.cmisBoxConfigHome + ": " + this.configHome); String watchParent = this.properties.getProperty(Config.WATCHPARENT); UI ui = UI.getInstance(); while (watchParent == null) { if (ui.isAvailable()) { File f = ui.getWatchFolder(); watchParent = f != null ? f.getAbsolutePath() : null; if (watchParent != null) { this.saveProperties(); File box = new File(f, "Box"); box.mkdirs(); this.setWatchParent(box.getAbsolutePath()); } } else { System.err.print(Messages.unableToLocateParent + ", " + Messages.pleaseInsertInProps); this.log.error(Messages.unableToLocateParent); Main.exit(1); } } } private Properties createDefaultProperties() { Properties p = new Properties(); return p; } public String getChangeLogToken() { return this.properties.getProperty(Config.CHANGE_LOG_TOKEN); } public File getConfigHome() { return this.configHome; } public OS getOS() { return this.os; } public String getRepositoryPassword() { return this.properties.getProperty(Config.REPOSITORY_PASSWORD); } public String getRepositoryUrl() { return this.properties.getProperty(Config.REPOSITORY_URL); } public String getRepositoryUsername() { return this.properties.getProperty(Config.REPOSITORY_USERNAME); } public String getWatchParent() { return this.properties.getProperty(Config.WATCHPARENT); } public boolean isLinux() { return this.getOS() == OS.LINUX; } public boolean isMacOSX() { return this.getOS() == OS.MACOSX; } public boolean isWindows() { return this.getOS() == OS.WINDOWS; } private void saveProperties() { File f = new File(this.configHome, Config.PROPERTIES_FILE); try { FileOutputStream fos = new FileOutputStream(f); this.properties.store(fos, null); fos.close(); } catch (Exception e) { this.log.error(e); UI ui = UI.getInstance(); if (ui.isAvailable()) { ui.notify(e.getLocalizedMessage()); } } } public void setChangeLogToken(String token) { try { token = (Integer.parseInt(token) + 1) + ""; } catch (Exception e) { } this.properties.setProperty(Config.CHANGE_LOG_TOKEN, token); this.saveProperties(); } public void setCredentials(String username, String password, String url) { this.properties.setProperty(Config.REPOSITORY_USERNAME, username); this.properties.setProperty(Config.REPOSITORY_PASSWORD, password); this.properties.setProperty(Config.REPOSITORY_URL, url); this.saveProperties(); } public void setWatchParent(String watchParent) { this.properties.setProperty(Config.WATCHPARENT, watchParent); this.saveProperties(); } }