Java tutorial
/** * This file is part of Aion X Emu <aionxemu.com> * * This is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This software 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 Public License for more details. * * You should have received a copy of the GNU Lesser Public License * along with this software. If not, see <http://www.gnu.org/licenses/>. */ package com.aionemu.commons.utils; import org.apache.commons.io.FileUtils; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.util.Collection; import java.util.Properties; /** * This class is designed to simplify routine job with properties * * @author SoulKeeper */ public class PropertiesUtils { /** * Loads properties by given file * * @param file filename * @return loaded properties * @throws java.io.IOException if can't load file */ public static Properties load(String file) throws IOException { return load(new File(file)); } /** * Loads properties by given file * * @param file filename * @return loaded properties * @throws java.io.IOException if can't load file */ public static Properties load(File file) throws IOException { FileInputStream fis = new FileInputStream(file); Properties p = new Properties(); p.load(fis); fis.close(); return p; } /** * Loades properties from given files * * @param files list of string that represents files * @return array of loaded properties * @throws IOException if was unable to read properties */ public static Properties[] load(String... files) throws IOException { Properties[] result = new Properties[files.length]; for (int i = 0; i < result.length; i++) { result[i] = load(files[i]); } return result; } /** * Loades properties from given files * * @param files list of files * @return array of loaded properties * @throws IOException if was unable to read properties */ public static Properties[] load(File... files) throws IOException { Properties[] result = new Properties[files.length]; for (int i = 0; i < result.length; i++) { result[i] = load(files[i]); } return result; } /** * Loads non-recursively all .property files form directory * * @param dir string that represents directory * @return array of loaded properties * @throws IOException if was unable to read properties */ public static Properties[] loadAllFromDirectory(String dir) throws IOException { return loadAllFromDirectory(new File(dir), false); } /** * Loads non-recursively all .property files form directory * * @param dir directory * @return array of loaded properties * @throws IOException if was unable to read properties */ public static Properties[] loadAllFromDirectory(File dir) throws IOException { return loadAllFromDirectory(dir, false); } /** * Loads all .property files form directory * * @param dir string that represents directory * @param recursive parse subdirectories or not * @return array of loaded properties * @throws IOException if was unable to read properties */ public static Properties[] loadAllFromDirectory(String dir, boolean recursive) throws IOException { return loadAllFromDirectory(new File(dir), recursive); } /** * Loads all .property files form directory * * @param dir directory * @param recursive parse subdirectories or not * @return array of loaded properties * @throws IOException if was unable to read properties */ @SuppressWarnings("unchecked") public static Properties[] loadAllFromDirectory(File dir, boolean recursive) throws IOException { Collection<File> files = FileUtils.listFiles(dir, new String[] { "properties" }, recursive); return load(files.toArray(new File[files.size()])); } }