2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2020 Nordix Foundation.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.models.tosca.simple.provider;
23 import lombok.NonNull;
25 import org.onap.policy.models.base.PfConceptKey;
26 import org.onap.policy.models.base.PfModelException;
27 import org.onap.policy.models.dao.PfDao;
28 import org.onap.policy.models.tosca.simple.concepts.JpaToscaServiceTemplate;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
33 * This class provides CRUD to and from the database en bloc using Service Template reads and writes.
35 * @author Liam Fallon (liam.fallon@est.tech)
37 public class SimpleToscaServiceTemplateProvider {
38 private static final Logger LOGGER = LoggerFactory.getLogger(SimpleToscaServiceTemplateProvider.class);
40 // There is only one service template in the database becasue TOSCA does not specify names and versions on service
42 private static final PfConceptKey DEFAULT_SERVICE_TEMPLATE_KEY =
43 new PfConceptKey(JpaToscaServiceTemplate.DEFAULT_NAME, JpaToscaServiceTemplate.DEFAULT_VERSION);
46 * Get a service template from the database.
48 * @param dao the DAO to use to access the database
49 * @return the Service Template read from the database
50 * @throws PfModelException on errors getting the service template
52 public JpaToscaServiceTemplate read(@NonNull final PfDao dao) throws PfModelException {
53 LOGGER.debug("->read");
55 // Get the service template
56 JpaToscaServiceTemplate serviceTemplate = dao.get(JpaToscaServiceTemplate.class, DEFAULT_SERVICE_TEMPLATE_KEY);
58 LOGGER.debug("<-read: serviceTemplate={}", serviceTemplate);
59 return serviceTemplate;
63 * Write a service template to the database.
65 * @param dao the DAO to use to access the database
66 * @param serviceTemplate the service template to be written
67 * @return the TOSCA service template overwritten by this method
68 * @throws PfModelException on errors writing the service template
70 public JpaToscaServiceTemplate write(@NonNull final PfDao dao,
71 @NonNull final JpaToscaServiceTemplate serviceTemplate) throws PfModelException {
72 LOGGER.debug("->write: serviceTempalate={}", serviceTemplate);
74 JpaToscaServiceTemplate overwrittenServiceTemplate =
75 dao.get(JpaToscaServiceTemplate.class, serviceTemplate.getKey());
77 if (overwrittenServiceTemplate != null) {
78 dao.delete(overwrittenServiceTemplate);
81 dao.create(serviceTemplate);
83 LOGGER.debug("<-write: overwrittenServiceTemplate={}", overwrittenServiceTemplate);
84 return overwrittenServiceTemplate;
88 * Delete a service template from the database.
90 * @param dao the DAO to use to access the database
91 * @return the Service Template stored in the database
92 * @throws PfModelException on errors getting the service template
94 public JpaToscaServiceTemplate delete(@NonNull final PfDao dao) throws PfModelException {
95 LOGGER.debug("->delete");
97 JpaToscaServiceTemplate serviceTemplateToBeDeleted =
98 dao.get(JpaToscaServiceTemplate.class, DEFAULT_SERVICE_TEMPLATE_KEY);
100 dao.delete(serviceTemplateToBeDeleted);
102 LOGGER.debug("<-delete: serviceTemplate={}", serviceTemplateToBeDeleted);
103 return serviceTemplateToBeDeleted;