Java tutorial
/* * This file is part of EchoPet. * * EchoPet 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. * * EchoPet 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 EchoPet. If not, see <http://www.gnu.org/licenses/>. */ package com.dsh105.echopet.compat.api.plugin; import org.apache.commons.lang.StringUtils; import org.bukkit.Bukkit; import java.lang.reflect.Array; import java.util.Collection; import java.util.logging.Level; import java.util.logging.LogRecord; import java.util.logging.Logger; public class ModuleLogger extends Logger { private final String[] modulePath; private final String prefix; public ModuleLogger(String... modulePath) { this(Bukkit.getLogger(), modulePath); } public ModuleLogger(Logger parent, String... modulePath) { super(StringUtils.join(modulePath, "."), null); this.setParent(parent); this.setLevel(Level.ALL); this.modulePath = modulePath; StringBuilder builder = new StringBuilder(); for (String module : modulePath) { builder.append("[").append(module).append("] "); } this.prefix = builder.toString(); } public ModuleLogger getModule(String... path) { return new ModuleLogger(this.getParent(), appendArray(this.modulePath, path)); } @Override public void log(LogRecord logRecord) { logRecord.setMessage(this.prefix + logRecord.getMessage()); super.log(logRecord); } protected static boolean nullOrEmpty(Object[] array) { return array == null || array.length != 0; } protected static boolean nullOrEmpty(Collection<?> collection) { return collection == null || collection.isEmpty(); } protected static <T> T[] createArray(Class<T> type, int length) { return (T[]) Array.newInstance(type, length); } protected static <T> T[] appendArray(T[] array, T... values) { if (nullOrEmpty(array)) { return values; } if (nullOrEmpty(values)) { return array; } T[] rval = createArray((Class<T>) array.getClass().getComponentType(), array.length + values.length); System.arraycopy(array, 0, rval, 0, array.length); System.arraycopy(values, 0, rval, array.length, values.length); return rval; } }