content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF 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
   *
   *      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.apache.camel.processor.jpa;
  
  import java.util.List;
  
  import jakarta.persistence.EntityManager;
  import jakarta.persistence.EntityManagerFactory;
  
  import org.apache.camel.examples.SendEmail;
  import org.apache.camel.test.spring.junit5.CamelSpringTestSupport;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.springframework.context.support.AbstractApplicationContext;
  import org.springframework.context.support.ClassPathXmlApplicationContext;
  import org.springframework.transaction.TransactionStatus;
  import org.springframework.transaction.support.TransactionCallback;
  import org.springframework.transaction.support.TransactionTemplate;
  
  import static org.apache.camel.test.junit5.TestSupport.assertIsInstanceOf;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public abstract class AbstractJpaTest extends CamelSpringTestSupport {
      protected TransactionTemplate transactionTemplate;
      protected EntityManager entityManager;
  
      @BeforeEach
      public void setupEntityManager() {
          EntityManagerFactory entityManagerFactory = applicationContext.getBean("entityManagerFactory",
                  EntityManagerFactory.class);
          transactionTemplate = applicationContext.getBean("transactionTemplate", TransactionTemplate.class);
          entityManager = entityManagerFactory.createEntityManager();
          cleanupRepository();
      }
  
      @AfterEach
      public void cleanupEntityManager() {
          if (entityManager != null) {
              entityManager.close();
          }
      }
  
      @Override
      protected AbstractApplicationContext createApplicationContext() {
          return new ClassPathXmlApplicationContext(routeXml());
      }
  
      protected void cleanupRepository() {
          transactionTemplate.execute(new TransactionCallback<Object>() {
              public Object doInTransaction(TransactionStatus arg0) {
                  entityManager.joinTransaction();
                  List<?> list = entityManager.createQuery(selectAllString()).getResultList();
                  for (Object item : list) {
                      entityManager.remove(item);
                  }
                  entityManager.flush();
                  return Boolean.TRUE;
              }
          });
      }
  
      protected void assertEntityInDB(int size) {
          assertEntityInDB(size, SendEmail.class);
      }
  
      protected void assertEntityInDB(int size, Class<?> entityType) {
          List<?> results = entityManager.createQuery("select o from " + entityType.getName() + " o").getResultList();
          assertEquals(size, results.size());
  
          assertIsInstanceOf(entityType, results.get(0));
      }
  
      protected void saveEntityInDB(final Object entity) {
          transactionTemplate.execute(new TransactionCallback<Object>() {
              public Object doInTransaction(TransactionStatus status) {
                  entityManager.joinTransaction();
                  entityManager.persist(entity);
                  entityManager.flush();
                  return null;
              }
          });
      }
  
      protected abstract String routeXml();
  
      protected abstract String selectAllString();
  }
  