2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
19 * SPDX-License-Identifier: Apache-2.0
20 * ============LICENSE_END=========================================================
23 package org.onap.policy.api.main.rest.provider;
25 import java.util.ArrayList;
26 import java.util.List;
27 import javax.ws.rs.core.Response;
28 import org.onap.policy.api.main.parameters.ApiParameterGroup;
29 import org.onap.policy.common.parameters.ParameterService;
30 import org.onap.policy.models.base.PfModelException;
31 import org.onap.policy.models.pdp.concepts.PdpGroup;
32 import org.onap.policy.models.pdp.concepts.PdpGroupFilter;
33 import org.onap.policy.models.provider.PolicyModelsProvider;
34 import org.onap.policy.models.provider.PolicyModelsProviderFactory;
35 import org.onap.policy.models.provider.PolicyModelsProviderParameters;
36 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyIdentifier;
37 import org.onap.policy.models.tosca.legacy.concepts.LegacyOperationalPolicy;
40 * Class to provide all kinds of legacy operational policy operations.
42 * @author Chenfei Gao (cgao@research.att.com)
44 public class LegacyOperationalPolicyProvider implements AutoCloseable {
46 private PolicyModelsProvider modelsProvider;
49 * Default constructor.
51 public LegacyOperationalPolicyProvider() throws PfModelException {
53 ApiParameterGroup parameterGroup = ParameterService.get("ApiGroup");
54 PolicyModelsProviderParameters providerParameters = parameterGroup.getDatabaseProviderParameters();
55 modelsProvider = new PolicyModelsProviderFactory().createPolicyModelsProvider(providerParameters);
59 * Retrieves a list of operational policies matching specified ID and version.
61 * @param policyId the ID of policy
62 * @param policyVersion the version of policy
64 * @return the LegacyOperationalPolicy object
66 public LegacyOperationalPolicy fetchOperationalPolicy(String policyId, String policyVersion)
67 throws PfModelException {
69 return modelsProvider.getOperationalPolicy(policyId);
73 * Creates a new operational policy.
75 * @param body the entity body of policy
77 * @return the LegacyOperationalPolicy object
79 public LegacyOperationalPolicy createOperationalPolicy(LegacyOperationalPolicy body) throws PfModelException {
81 return modelsProvider.createOperationalPolicy(body);
85 * Deletes the operational policies matching specified ID and version.
87 * @param policyId the ID of policy
88 * @param policyVersion the version of policy
90 * @return the LegacyOperationalPolicy object
92 public LegacyOperationalPolicy deleteOperationalPolicy(String policyId, String policyVersion)
93 throws PfModelException {
95 validateDeleteEligibility(policyId, policyVersion);
97 return modelsProvider.deleteOperationalPolicy(policyId);
101 * Validates whether specified policy can be deleted based on the rule that deployed policy cannot be deleted.
103 * @param policyId the ID of policy
104 * @param policyVersion the version of policy
106 * @throws PfModelException the PfModel parsing exception
108 private void validateDeleteEligibility(String policyId, String policyVersion) throws PfModelException {
110 List<ToscaPolicyIdentifier> policies = new ArrayList<>();
111 policies.add(new ToscaPolicyIdentifier(policyId, policyVersion));
112 PdpGroupFilter pdpGroupFilter = PdpGroupFilter.builder().policyList(policies).build();
114 List<PdpGroup> pdpGroups = modelsProvider.getFilteredPdpGroups(pdpGroupFilter);
116 if (!pdpGroups.isEmpty()) {
117 throw new PfModelException(Response.Status.CONFLICT,
118 constructDeleteRuleViolationMessage(policyId, policyVersion, pdpGroups));
123 * Constructs returned message for policy delete rule violation.
125 * @param policyId the ID of policy
126 * @param policyVersion the version of policy
127 * @param pdpGroups the list of pdp groups
129 * @return the constructed message
131 private String constructDeleteRuleViolationMessage(
132 String policyId, String policyVersion, List<PdpGroup> pdpGroups) {
134 List<String> pdpGroupNameVersionList = new ArrayList<>();
135 for (PdpGroup pdpGroup : pdpGroups) {
136 pdpGroupNameVersionList.add(pdpGroup.getName() + ":" + pdpGroup.getVersion());
138 String deployedPdpGroups = String.join(",", pdpGroupNameVersionList);
139 return "policy with ID " + policyId + ":" + policyVersion
140 + " cannot be deleted as it is deployed in pdp groups " + deployedPdpGroups;
144 * Closes the connection to database.
146 * @throws PfModelException the PfModel parsing exception
149 public void close() throws PfModelException {
151 modelsProvider.close();