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;
28 import javax.ws.rs.core.Response;
29 import org.onap.policy.api.main.parameters.ApiParameterGroup;
30 import org.onap.policy.common.parameters.ParameterService;
31 import org.onap.policy.models.base.PfModelException;
32 import org.onap.policy.models.pdp.concepts.PdpGroup;
33 import org.onap.policy.models.pdp.concepts.PdpGroupFilter;
34 import org.onap.policy.models.provider.PolicyModelsProvider;
35 import org.onap.policy.models.provider.PolicyModelsProviderFactory;
36 import org.onap.policy.models.provider.PolicyModelsProviderParameters;
37 import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyIdentifier;
38 import org.onap.policy.models.tosca.legacy.concepts.LegacyGuardPolicyInput;
39 import org.onap.policy.models.tosca.legacy.concepts.LegacyGuardPolicyOutput;
42 * Class to provide all kinds of legacy guard policy operations.
44 * @author Chenfei Gao (cgao@research.att.com)
46 public class LegacyGuardPolicyProvider implements AutoCloseable {
48 private PolicyModelsProvider modelsProvider;
51 * Default constructor.
53 public LegacyGuardPolicyProvider() throws PfModelException {
55 ApiParameterGroup parameterGroup = ParameterService.get("ApiGroup");
56 PolicyModelsProviderParameters providerParameters = parameterGroup.getDatabaseProviderParameters();
57 modelsProvider = new PolicyModelsProviderFactory().createPolicyModelsProvider(providerParameters);
61 * Retrieves a list of guard policies matching specified ID and version.
63 * @param policyId the ID of policy
64 * @param policyVersion the version of policy
66 * @return the map of LegacyGuardPolicyOutput objects
68 public Map<String, LegacyGuardPolicyOutput> fetchGuardPolicy(String policyId, String policyVersion)
69 throws PfModelException {
71 if (policyVersion != null) {
72 validateLegacyGuardPolicyVersion(policyVersion);
74 return modelsProvider.getGuardPolicy(policyId, policyVersion);
78 * Creates a new guard policy.
80 * @param body the entity body of policy
82 * @return the map of LegacyGuardPolicyOutput objectst
84 public Map<String, LegacyGuardPolicyOutput> createGuardPolicy(LegacyGuardPolicyInput body)
85 throws PfModelException {
87 return modelsProvider.createGuardPolicy(body);
91 * Deletes the guard policies matching specified ID and version.
93 * @param policyId the ID of policy
94 * @param policyVersion the version of policy
96 * @return the map of LegacyGuardPolicyOutput objects
98 public Map<String, LegacyGuardPolicyOutput> deleteGuardPolicy(String policyId, String policyVersion)
99 throws PfModelException {
101 validateLegacyGuardPolicyVersion(policyVersion);
102 validateDeleteEligibility(policyId, policyVersion);
104 return modelsProvider.deleteGuardPolicy(policyId, policyVersion);
108 * Validates whether specified policy can be deleted based on the rule that deployed policy cannot be deleted.
110 * @param policyId the ID of policy
111 * @param policyVersion the version of policy
113 * @throws PfModelException the PfModel parsing exception
115 private void validateDeleteEligibility(String policyId, String policyVersion) throws PfModelException {
117 List<ToscaPolicyIdentifier> policies = new ArrayList<>();
118 policies.add(new ToscaPolicyIdentifier(policyId, policyVersion));
119 PdpGroupFilter pdpGroupFilter = PdpGroupFilter.builder().policyList(policies).build();
121 List<PdpGroup> pdpGroups = modelsProvider.getFilteredPdpGroups(pdpGroupFilter);
123 if (!pdpGroups.isEmpty()) {
124 throw new PfModelException(Response.Status.CONFLICT,
125 constructDeleteRuleViolationMessage(policyId, policyVersion, pdpGroups));
130 * Validates whether the legacy guard policy version is an integer.
132 * @param policyVersion the version of policy
134 * @throws PfModelException the PfModel parsing exception
136 private void validateLegacyGuardPolicyVersion(String policyVersion) throws PfModelException {
139 Integer.valueOf(policyVersion);
140 } catch (NumberFormatException exc) {
141 throw new PfModelException(Response.Status.BAD_REQUEST,
142 "legacy policy version is not an integer", exc);
147 * Constructs returned message for policy delete rule violation.
149 * @param policyId the ID of policy
150 * @param policyVersion the version of policy
151 * @param pdpGroups the list of pdp groups
153 * @return the constructed message
155 private String constructDeleteRuleViolationMessage(
156 String policyId, String policyVersion, List<PdpGroup> pdpGroups) {
158 List<String> pdpGroupNameVersionList = new ArrayList<>();
159 for (PdpGroup pdpGroup : pdpGroups) {
160 pdpGroupNameVersionList.add(pdpGroup.getName() + ":" + pdpGroup.getVersion());
162 String deployedPdpGroups = String.join(",", pdpGroupNameVersionList);
163 return "policy with ID " + policyId + ":" + policyVersion
164 + " cannot be deleted as it is deployed in pdp groups " + deployedPdpGroups;
168 * Closes the connection to database.
170 * @throws PfModelException the PfModel parsing exception
173 public void close() throws PfModelException {
175 modelsProvider.close();