Java tutorial
/* * Copyright (c) 2002-2017, Mairie de Paris * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright notice * and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice * and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * License 1.0 */ package fr.paris.lutece.portal.service.util; import org.apache.commons.lang3.exception.ExceptionUtils; /** * This kind of exception is thrown when the application encounters a critical problem. This class extends RuntimeException in order to avoid try/catch blocks * This class forces to write to the logs immediatly to protect against swallowing exceptions. */ public class AppException extends RuntimeException { /** * Generated serialVersionUID */ private static final long serialVersionUID = -742252097057629674L; /** * Constructor 1 * * @param strMessage * The error message */ public AppException(String strMessage) { super(strMessage); writeToLogs(); } /** * Constructor 2 * * @param strMessage * The error message * @param t * The initial throwable */ public AppException(String strMessage, Throwable t) { super(strMessage, t); writeToLogs(); } /** * Constructor for backwards binary compatibility, same as AppException( String s, Throwable t ) * * @param strMessage * The error message * @param e * The initial exception */ public AppException(String strMessage, Exception e) { this(strMessage, (Throwable) e); } /** * Constructor 3 */ public AppException() { writeToLogs(); } /** * Constructor 4 * * @param strMessage * The error message * @param e * The initial exception * @param enableSuppression * enableSuppresion * @param writableStackTrace * writableStackTrace */ public AppException(String strMessage, Throwable t, boolean enableSuppression, boolean writableStackTrace) { super(strMessage, t, enableSuppression, writableStackTrace); writeToLogs(); } private void writeToLogs() { StringBuilder sb = new StringBuilder("Critical AppException"); Throwable strRootCause = ExceptionUtils.getRootCause(this); if (strRootCause != null) { sb.append(", root cause: "); String strShortName = strRootCause.getClass().getSimpleName(); sb.append(strShortName); } Throwable throwableForMessage = strRootCause == null ? this : strRootCause; String strMessage = throwableForMessage.getMessage(); if (strMessage != null) { sb.append(": "); sb.append(strMessage); } String strHeader = sb.toString(); AppLogService.error(strHeader, this); } }