Java tutorial
/** * Licensed to Apereo under one or more contributor license * agreements. See the NOTICE file distributed with this work * for additional information regarding copyright ownership. * Apereo licenses this file to you under the Apache License, * Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a * copy of the License at the following location: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.apereo.portal.portlet.dao.jpa; import java.sql.SQLException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.core.Ordered; /** * Provides additional logging for SQL based exceptions that provide chained exceptions via * {@link SQLException#getNextException()} * * @author Eric Dalquist * @version $Revision$ */ public class SQLNextExceptionLoggerAspect implements Ordered { protected final Log logger = LogFactory.getLog(this.getClass()); private int order = 0; /* (non-Javadoc) * @see org.springframework.core.Ordered#getOrder() */ @Override public int getOrder() { return this.order; } /** * @param order the order to set */ public void setOrder(int order) { this.order = order; } public void logBatchUpdateExceptions(Throwable t) { while (!(t instanceof SQLException)) { t = t.getCause(); if (t == null) { return; } } SQLException sqle = (SQLException) t; //If the SQLException is the root chain the results of getNextException as initCauses if (sqle.getCause() == null) { SQLException nextException; while ((nextException = sqle.getNextException()) != null) { sqle.initCause(nextException); sqle = nextException; } } //The SQLException already has a cause so log the results of all getNextException calls else { while ((sqle = sqle.getNextException()) != null) { this.logger.error("Logging getNextException for root SQLException: " + t, sqle); } } } }