Java tutorial
package hadoopInstaller.logging; /* * #%L * Hadoop Installer * %% * Copyright (C) 2015 - 2016 Julin Maestri * %% * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * #L% */ import java.util.ArrayList; import java.util.List; import org.apache.commons.logging.Log; public class CompositeLog implements Log { private List<Log> logs; public CompositeLog() { this.logs = new ArrayList<>(); } public void addLog(Log log) { this.logs.add(log); } @Override public void debug(Object message) { for (Log log : this.logs) { log.debug(message); } } @Override public void debug(Object message, Throwable t) { for (Log log : this.logs) { log.debug(message, t); } } @Override public void error(Object message) { for (Log log : this.logs) { log.error(message); } } @Override public void error(Object message, Throwable t) { for (Log log : this.logs) { log.error(message, t); } } @Override public void fatal(Object message) { for (Log log : this.logs) { log.fatal(message); } } @Override public void fatal(Object message, Throwable t) { for (Log log : this.logs) { log.fatal(message, t); } } @Override public void info(Object message) { for (Log log : this.logs) { log.info(message); } } @Override public void info(Object message, Throwable t) { for (Log log : this.logs) { log.info(message, t); } } @Override public boolean isDebugEnabled() { boolean enabled = true; for (Log log : this.logs) { enabled = enabled && log.isDebugEnabled(); } return enabled; } @Override public boolean isErrorEnabled() { boolean enabled = true; for (Log log : this.logs) { enabled = enabled && log.isErrorEnabled(); } return enabled; } @Override public boolean isFatalEnabled() { boolean enabled = true; for (Log log : this.logs) { enabled = enabled && log.isFatalEnabled(); } return enabled; } @Override public boolean isInfoEnabled() { boolean enabled = true; for (Log log : this.logs) { enabled = enabled && log.isInfoEnabled(); } return enabled; } @Override public boolean isTraceEnabled() { boolean enabled = true; for (Log log : this.logs) { enabled = enabled && log.isTraceEnabled(); } return enabled; } @Override public boolean isWarnEnabled() { boolean enabled = true; for (Log log : this.logs) { enabled = enabled && log.isWarnEnabled(); } return enabled; } @Override public void trace(Object message) { for (Log log : this.logs) { log.trace(message); } } @Override public void trace(Object message, Throwable t) { for (Log log : this.logs) { log.trace(message, t); } } @Override public void warn(Object message) { for (Log log : this.logs) { log.warn(message); } } @Override public void warn(Object message, Throwable t) { for (Log log : this.logs) { log.warn(message, t); } } }