diff options
Diffstat (limited to 'common/src/main/java/org/openecomp/mso/db/HibernateUtils.java')
-rw-r--r-- | common/src/main/java/org/openecomp/mso/db/HibernateUtils.java | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/common/src/main/java/org/openecomp/mso/db/HibernateUtils.java b/common/src/main/java/org/openecomp/mso/db/HibernateUtils.java new file mode 100644 index 0000000000..ba452fff44 --- /dev/null +++ b/common/src/main/java/org/openecomp/mso/db/HibernateUtils.java @@ -0,0 +1,55 @@ +/*- + * ============LICENSE_START======================================================= + * OPENECOMP - MSO + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed 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. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.mso.db; + +import org.hibernate.cfg.Configuration; +import org.hibernate.SessionFactory; +import org.hibernate.service.ServiceRegistry; +import org.hibernate.boot.registry.StandardServiceRegistryBuilder; +import java.net.URL; + +public abstract class HibernateUtils { + + protected SessionFactory sessionFactory; + + protected synchronized void initializeHibernate(URL hibernateConfigFile) { + // Can be null, in that case, we skip the loading + if (hibernateConfigFile != null) { + // Already initialized, skip + if (sessionFactory != null) { + return; + } + + Configuration conf = new Configuration().configure(hibernateConfigFile); + ServiceRegistry sr = new StandardServiceRegistryBuilder().applySettings(conf.getProperties()).build(); + sessionFactory = conf.buildSessionFactory(sr); + } + } + + public SessionFactory getSessionFactory() { + if (sessionFactory == null) { + initializeHibernate(getHibernateConfigFile()); + } + return sessionFactory; + } + + protected abstract URL getHibernateConfigFile(); +} |