001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019package org.apache.isis.persistence.jdo.spring;
020
021import java.util.Optional;
022
023import javax.jdo.JDOException;
024
025import org.springframework.context.annotation.Bean;
026import org.springframework.context.annotation.Configuration;
027
028import org.apache.isis.applib.services.exceprecog.RootCauseFinder;
029
030@Configuration
031public class IsisModulePersistenceJdoSpring {
032
033    @Bean
034    public RootCauseFinder getJdoExceptionRootCauseFinder() {
035        return (final Throwable ex) -> {
036            if (ex instanceof JDOException) {
037                final JDOException jdoException = (JDOException) ex;
038                final Throwable[] nestedExceptions = jdoException.getNestedExceptions();
039                return nestedExceptions != null
040                        && nestedExceptions.length > 0
041                        ? Optional.ofNullable(nestedExceptions[0])
042                        : Optional.empty();
043            }
044            return Optional.empty();
045        };
046    }
047
048}