diff options
Diffstat (limited to 'plugins/plugins-persistence/plugins-persistence-jpa/plugins-persistence-jpa-hibernate/src/main')
2 files changed, 304 insertions, 0 deletions
diff --git a/plugins/plugins-persistence/plugins-persistence-jpa/plugins-persistence-jpa-hibernate/src/main/java/org/onap/policy/apex/plugins/persistence/jpa/hibernate/HibernateApexDao.java b/plugins/plugins-persistence/plugins-persistence-jpa/plugins-persistence-jpa-hibernate/src/main/java/org/onap/policy/apex/plugins/persistence/jpa/hibernate/HibernateApexDao.java new file mode 100644 index 000000000..2d60e3751 --- /dev/null +++ b/plugins/plugins-persistence/plugins-persistence-jpa/plugins-persistence-jpa-hibernate/src/main/java/org/onap/policy/apex/plugins/persistence/jpa/hibernate/HibernateApexDao.java @@ -0,0 +1,276 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.plugins.persistence.jpa.hibernate; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.List; + +import javax.persistence.EntityManager; + +import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey; +import org.onap.policy.apex.model.basicmodel.concepts.AxConcept; +import org.onap.policy.apex.model.basicmodel.concepts.AxReferenceKey; +import org.onap.policy.apex.model.basicmodel.dao.impl.DefaultApexDao; +import org.slf4j.ext.XLogger; +import org.slf4j.ext.XLoggerFactory; + +/** + * The Class HibernateApexDao is the Hibernate JPA implementation of the Apex DAO. + * + * @author Sergey Sachkov (sergey.sachkov@ericsson.com) + */ +public class HibernateApexDao extends DefaultApexDao { + private static final XLogger LOGGER = XLoggerFactory.getXLogger(HibernateApexDao.class); + + private static final String FROM = "FROM "; + private static final String DELETE_FROM = "DELETE FROM "; + private static final String WHERE_KEY_NAME = " WHERE key.name='"; + private static final String AND_KEY_VERSION = "' AND key.version='"; + private static final String WHERE_KEY_PARENT_KEY_NAME = " WHERE key.parentKeyName='"; + private static final String AND_KEY_PARENT_KEY_VERSION = "' AND key.parentKeyVersion='"; + private static final String AND_KEY_LOCAL_NAME = "' AND key.localName='"; + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.model.basicmodel.dao.impl.DefaultApexDao#delete(java.lang.Class, + * org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey) + */ + @Override + public <T extends AxConcept> void delete(final Class<T> aClass, final AxArtifactKey key) { + if (key == null) { + return; + } + final EntityManager mg = getEntityManager(); + try { + mg.getTransaction().begin(); + mg.createQuery(DELETE_FROM + aClass.getSimpleName() + WHERE_KEY_NAME + key.getName() + AND_KEY_VERSION + + key.getVersion() + "'").executeUpdate(); + mg.getTransaction().commit(); + } finally { + mg.close(); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.model.basicmodel.dao.impl.DefaultApexDao#delete(java.lang.Class, + * org.onap.policy.apex.model.basicmodel.concepts.AxReferenceKey) + */ + @Override + public <T extends AxConcept> void delete(final Class<T> aClass, final AxReferenceKey key) { + if (key == null) { + return; + } + final EntityManager mg = getEntityManager(); + try { + mg.getTransaction().begin(); + mg.createQuery(DELETE_FROM + aClass.getSimpleName() + WHERE_KEY_PARENT_KEY_NAME + key.getParentKeyName() + + AND_KEY_PARENT_KEY_VERSION + key.getParentKeyVersion() + AND_KEY_LOCAL_NAME + key.getLocalName() + + "'").executeUpdate(); + mg.getTransaction().commit(); + } finally { + mg.close(); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.model.basicmodel.dao.impl.DefaultApexDao#deleteByArtifactKey(java.lang.Class, + * java.util.Collection) + */ + @Override + public <T extends AxConcept> int deleteByArtifactKey(final Class<T> aClass, final Collection<AxArtifactKey> keys) { + if (keys == null || keys.isEmpty()) { + return 0; + } + int deletedCount = 0; + final EntityManager mg = getEntityManager(); + try { + mg.getTransaction().begin(); + for (final AxArtifactKey key : keys) { + deletedCount += mg.createQuery(DELETE_FROM + aClass.getSimpleName() + WHERE_KEY_NAME + key.getName() + + AND_KEY_VERSION + key.getVersion() + "'").executeUpdate(); + } + mg.getTransaction().commit(); + } finally { + mg.close(); + } + return deletedCount; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.model.dao.ApexDao#deleteByContextUsageKey(java.lang.Class, java.util.Collection) + */ + @Override + public <T extends AxConcept> int deleteByReferenceKey(final Class<T> aClass, + final Collection<AxReferenceKey> keys) { + if (keys == null || keys.isEmpty()) { + return 0; + } + int deletedCount = 0; + final EntityManager mg = getEntityManager(); + try { + mg.getTransaction().begin(); + for (final AxReferenceKey key : keys) { + deletedCount += mg.createQuery(DELETE_FROM + aClass.getSimpleName() + WHERE_KEY_PARENT_KEY_NAME + + key.getParentKeyName() + AND_KEY_PARENT_KEY_VERSION + key.getParentKeyVersion() + + AND_KEY_LOCAL_NAME + key.getLocalName() + "'").executeUpdate(); + } + mg.getTransaction().commit(); + } finally { + mg.close(); + } + return deletedCount; + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.model.dao.ApexDao#deleteAll(java.lang.Class) + */ + @Override + public <T extends AxConcept> void deleteAll(final Class<T> aClass) { + final EntityManager mg = getEntityManager(); + try { + mg.getTransaction().begin(); + mg.createQuery(DELETE_FROM + aClass.getSimpleName()).executeUpdate(); + mg.getTransaction().commit(); + } finally { + mg.close(); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.model.dao.ApexDao#getAll(java.lang.Class) + */ + @Override + public <T extends AxConcept> List<T> getAll(final Class<T> aClass) { + if (aClass == null) { + return Collections.emptyList(); + } + final EntityManager mg = getEntityManager(); + try { + final List<T> result = mg.createQuery(FROM + aClass.getSimpleName(), aClass).getResultList(); + final List<T> cloneResult = new ArrayList<>(); + for (final T t : result) { + try { + final T clonedT = aClass.newInstance(); + t.copyTo(clonedT); + cloneResult.add(clonedT); + } catch (final Exception e) { + LOGGER.warn("Could not clone object of class \"" + aClass.getCanonicalName() + "\"", e); + return cloneResult; + } + } + return cloneResult; + } finally { + mg.close(); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.model.dao.ApexDao#getAll(java.lang.Class, + * org.onap.policy.apex.core.model.concepts.AxArtifactKey) + */ + @Override + public <T extends AxConcept> List<T> getAll(final Class<T> aClass, final AxArtifactKey parentKey) { + if (aClass == null) { + return Collections.emptyList(); + } + final EntityManager mg = getEntityManager(); + try { + return mg.createQuery(FROM + aClass.getSimpleName() + WHERE_KEY_PARENT_KEY_NAME + parentKey.getName() + + AND_KEY_PARENT_KEY_VERSION + parentKey.getVersion() + "'", aClass).getResultList(); + } finally { + mg.close(); + } + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.model.dao.ApexDao#getArtifact(java.lang.Class, + * org.onap.policy.apex.core.model.concepts.AxArtifactKey) + */ + @Override + public <T extends AxConcept> T getArtifact(final Class<T> aClass, final AxArtifactKey key) { + if (aClass == null || key == null) { + return null; + } + final EntityManager mg = getEntityManager(); + List<T> ret; + try { + ret = mg.createQuery(FROM + aClass.getSimpleName() + WHERE_KEY_NAME + key.getName() + AND_KEY_VERSION + + key.getVersion() + "'", aClass).getResultList(); + } finally { + mg.close(); + } + if (ret == null || ret.isEmpty()) { + return null; + } + if (ret.size() > 1) { + throw new IllegalArgumentException("More than one result was returned for search for " + aClass + + " with key " + key.getID() + ": " + ret); + } + return ret.get(0); + } + + /* + * (non-Javadoc) + * + * @see org.onap.policy.apex.core.model.dao.ApexDao#getArtifact(java.lang.Class, + * org.onap.policy.apex.core.model.concepts.AxReferenceKey) + */ + @Override + public <T extends AxConcept> T getArtifact(final Class<T> aClass, final AxReferenceKey key) { + if (aClass == null || key == null) { + return null; + } + final EntityManager mg = getEntityManager(); + List<T> ret; + try { + ret = mg.createQuery(FROM + aClass.getSimpleName() + WHERE_KEY_PARENT_KEY_NAME + key.getParentKeyName() + + AND_KEY_PARENT_KEY_VERSION + key.getParentKeyVersion() + AND_KEY_LOCAL_NAME + key.getLocalName() + + "'", aClass).getResultList(); + } finally { + mg.close(); + } + if (ret == null || ret.isEmpty()) { + return null; + } + if (ret.size() > 1) { + throw new IllegalArgumentException("More than one result was returned for search for " + aClass + + " with key " + key.getID() + ": " + ret); + } + return ret.get(0); + } +} diff --git a/plugins/plugins-persistence/plugins-persistence-jpa/plugins-persistence-jpa-hibernate/src/main/java/org/onap/policy/apex/plugins/persistence/jpa/hibernate/package-info.java b/plugins/plugins-persistence/plugins-persistence-jpa/plugins-persistence-jpa-hibernate/src/main/java/org/onap/policy/apex/plugins/persistence/jpa/hibernate/package-info.java new file mode 100644 index 000000000..036d45d5d --- /dev/null +++ b/plugins/plugins-persistence/plugins-persistence-jpa/plugins-persistence-jpa-hibernate/src/main/java/org/onap/policy/apex/plugins/persistence/jpa/hibernate/package-info.java @@ -0,0 +1,28 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * Provides the <a href="http://hibernate.org/">Hibernate</a> implementation on the APEX DAO for persistence over + * <a href="https://en.wikipedia.org/wiki/Java_Database_Connectivity">JDBC</a>. + * + * @author Liam Fallon (liam.fallon@ericsson.com) + */ + +package org.onap.policy.apex.plugins.persistence.jpa.hibernate; |