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/*-
* ============LICENSE_START=======================================================
* ONAP Policy API
* ================================================================================
* Copyright (C) 2019 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.api.main.rest.provider;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.core.Response;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.pdp.concepts.PdpGroup;
import org.onap.policy.models.pdp.concepts.PdpGroupFilter;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicyIdentifier;
import org.onap.policy.models.tosca.legacy.concepts.LegacyOperationalPolicy;
/**
* Class to provide all kinds of legacy operational policy operations.
*
* @author Chenfei Gao (cgao@research.att.com)
*/
public class LegacyOperationalPolicyProvider extends CommonModelProvider {
private static final String INVALID_POLICY_VERSION = "legacy policy version is not an integer";
/**
* Default constructor.
*/
public LegacyOperationalPolicyProvider() throws PfModelException {
super();
}
/**
* Retrieves a list of operational policies matching specified ID and version.
*
* @param policyId the ID of policy
* @param policyVersion the version of policy
*
* @return the LegacyOperationalPolicy object
*/
public LegacyOperationalPolicy fetchOperationalPolicy(String policyId, String policyVersion)
throws PfModelException {
if (policyVersion != null) {
validNumber(policyVersion, INVALID_POLICY_VERSION);
}
return modelsProvider.getOperationalPolicy(policyId, policyVersion);
}
/**
* Creates a new operational policy.
*
* @param body the entity body of policy
*
* @return the LegacyOperationalPolicy object
*/
public LegacyOperationalPolicy createOperationalPolicy(LegacyOperationalPolicy body) throws PfModelException {
return modelsProvider.createOperationalPolicy(body);
}
/**
* Deletes the operational policies matching specified ID and version.
*
* @param policyId the ID of policy
* @param policyVersion the version of policy
*
* @return the LegacyOperationalPolicy object
*/
public LegacyOperationalPolicy deleteOperationalPolicy(String policyId, String policyVersion)
throws PfModelException {
validNumber(policyVersion, INVALID_POLICY_VERSION);
validateDeleteEligibility(policyId, policyVersion);
return modelsProvider.deleteOperationalPolicy(policyId, policyVersion);
}
/**
* Validates whether specified policy can be deleted based on the rule that deployed policy cannot be deleted.
*
* @param policyId the ID of policy
* @param policyVersion the version of policy
*
* @throws PfModelException the PfModel parsing exception
*/
private void validateDeleteEligibility(String policyId, String policyVersion) throws PfModelException {
List<ToscaPolicyIdentifier> policies = new ArrayList<>();
policies.add(new ToscaPolicyIdentifier(policyId, policyVersion));
PdpGroupFilter pdpGroupFilter = PdpGroupFilter.builder().policyList(policies).build();
List<PdpGroup> pdpGroups = modelsProvider.getFilteredPdpGroups(pdpGroupFilter);
if (!pdpGroups.isEmpty()) {
throw new PfModelException(Response.Status.CONFLICT,
constructDeletePolicyViolationMessage(policyId, policyVersion, pdpGroups));
}
}
}
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