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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2021 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.pap.main.rest;
import java.util.Collection;
import org.onap.policy.common.utils.services.Registry;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.pap.concepts.PolicyStatus;
import org.onap.policy.models.pdp.concepts.PdpPolicyStatus;
import org.onap.policy.models.provider.PolicyModelsProvider;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifierOptVersion;
import org.onap.policy.pap.main.PapConstants;
import org.onap.policy.pap.main.PolicyModelsProviderFactoryWrapper;
import org.onap.policy.pap.main.notification.DeploymentTracker;
/**
* Provider for PAP component to query policy deployment status.
*/
public class PolicyStatusProvider {
/**
* Factory for PAP DAO.
*/
private final PolicyModelsProviderFactoryWrapper daoFactory;
/**
* Constructs the object. Loads all deployed policies into the internal cache.
*/
public PolicyStatusProvider() {
this.daoFactory = Registry.get(PapConstants.REG_PAP_DAO_FACTORY, PolicyModelsProviderFactoryWrapper.class);
}
/**
* Gets the deployment status of all policies.
*
* @return the deployment status of all policies
* @throws PfModelException if a DB error occurs
*/
public Collection<PolicyStatus> getStatus() throws PfModelException {
try (PolicyModelsProvider dao = daoFactory.create()) {
return accumulate(dao.getAllPolicyStatus());
}
}
/**
* Gets the deployment status of a policy.
*
* @param policy policy of interest
* @return the deployment status of all policies
* @throws PfModelException if a DB error occurs
*/
public Collection<PolicyStatus> getStatus(ToscaConceptIdentifierOptVersion policy) throws PfModelException {
try (PolicyModelsProvider dao = daoFactory.create()) {
return accumulate(dao.getAllPolicyStatus(policy));
}
}
/**
* Accumulates the deployment status of individual PDP/policy pairs into a status for
* a policy.
*
* @param source PDP/policy pairs
* @return the deployment status of the policies
*/
private Collection<PolicyStatus> accumulate(Collection<PdpPolicyStatus> source) {
DeploymentTracker tracker = new DeploymentTracker();
for (PdpPolicyStatus status : source) {
if (status.isDeploy()) {
tracker.add(status);
}
}
return tracker.getDeploymentStatus();
}
}
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