| /* |
| * 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.openjpa.persistence.test; |
| |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| |
| import javax.persistence.EntityManager; |
| |
| import org.apache.openjpa.kernel.AbstractBrokerFactory; |
| import org.apache.openjpa.kernel.Broker; |
| import org.apache.openjpa.persistence.JPAFacadeHelper; |
| import org.apache.openjpa.persistence.OpenJPAEntityManagerFactorySPI; |
| |
| /** |
| * Testcase which caches EntityManagerFactories based on the persistence unit name and the properties provided at |
| * runtime. Extends AbstractPersistenceTestCase and provides cleanup of EMFs created by createNamedEMF() through |
| * LinkHashMap.removeEldestEntry(). |
| * |
| */ |
| public abstract class AbstractCachedEMFTestCase extends AbstractPersistenceTestCase { |
| private static FixedMap<EMFKey, OpenJPAEntityManagerFactorySPI> _emfs = |
| new FixedMap<>(); |
| |
| /** |
| * Create an entity manager factory for persistence unit <code>pu</code>. Put {@link #CLEAR_TABLES} in this list to |
| * tell the test framework to delete all table contents before running the tests. |
| * |
| * @param props |
| * list of persistent types used in testing and/or configuration values in the form |
| * key,value,key,value... |
| */ |
| @Override |
| protected OpenJPAEntityManagerFactorySPI createNamedEMF(String pu, Object... props) { |
| Map<String, Object> map = getPropertiesMap(props); |
| EMFKey key = new EMFKey(pu, map); |
| OpenJPAEntityManagerFactorySPI oemf = _emfs.get(key); |
| if (_fresh || oemf == null || !oemf.isOpen()) { |
| oemf = super.createNamedEMF(pu, props); |
| if (!_fresh) { |
| _emfs.put(key, oemf); |
| } |
| } |
| _fresh = false; |
| return oemf; |
| } |
| |
| @Override |
| protected OpenJPAEntityManagerFactorySPI createNamedOpenJPAEMF(String pu, |
| String res, Map<String,Object> props) { |
| EMFKey key = new EMFKey(pu, props); |
| OpenJPAEntityManagerFactorySPI oemf = _emfs.get(key); |
| if (_fresh || oemf == null || !oemf.isOpen()) { |
| oemf = super.createNamedOpenJPAEMF(pu, res, props); |
| if (!_fresh) { |
| _emfs.put(key, oemf); |
| } |
| } |
| _fresh = false; |
| return oemf; |
| } |
| |
| private static class FixedMap<K, V> extends LinkedHashMap<K, V> { |
| private static final long serialVersionUID = -3153852097468390779L; |
| |
| @Override |
| protected boolean removeEldestEntry(Map.Entry<K,V> entry) { |
| OpenJPAEntityManagerFactorySPI oemf = (OpenJPAEntityManagerFactorySPI)entry.getValue(); |
| if (this.size() > 2) { |
| // if the eldest should be removed, then try to close it first |
| if (oemf != null && oemf.isOpen()) { |
| try { |
| // same code as AbstractPersistenceTestCase.closeAllOpenEMs() |
| for (Broker b:((AbstractBrokerFactory)JPAFacadeHelper.toBrokerFactory(oemf)).getOpenBrokers()) { |
| if (b != null && !b.isClosed()) { |
| EntityManager em = JPAFacadeHelper.toEntityManager(b); |
| if (em == null || !em.isOpen()) { |
| continue; |
| } |
| if (em.getTransaction().isActive()) { |
| em.getTransaction().rollback(); |
| } |
| em.close(); |
| } |
| } |
| oemf.close(); |
| } catch (Exception e) { |
| // no-op - eat it |
| } |
| } |
| return true; |
| } |
| return false; |
| } |
| } |
| |
| private static class EMFKey { |
| final String unit; |
| final Map<String, Object> config; |
| |
| EMFKey(String unit, Map<String, Object> config) { |
| this.unit = unit; |
| this.config = config; |
| } |
| |
| @Override |
| public int hashCode() { |
| return (unit != null ? unit.hashCode() : 0) + config.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| EMFKey that = (EMFKey) other; |
| return (unit != null ? unit.equals(that.unit) : that.unit == null) && config.equals(that.config); |
| } |
| } |
| |
| } |