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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2021-2022 Bell Canada. All rights reserved.
* Modifications Copyright (C) 2021 Nordix Foundation.
* ================================================================================
* 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 com.google.re2j.Pattern;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;
import lombok.RequiredArgsConstructor;
import org.onap.policy.models.pap.concepts.PolicyStatus;
import org.onap.policy.models.pdp.concepts.PdpPolicyStatus;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifierOptVersion;
import org.onap.policy.pap.main.notification.DeploymentTracker;
import org.onap.policy.pap.main.service.PolicyStatusService;
import org.springframework.stereotype.Service;
/**
* Provider for PAP component to query policy deployment status.
*/
@Service
@RequiredArgsConstructor
public class PolicyStatusProvider {
private final PolicyStatusService policyStatusService;
/**
* Gets the deployment status of all policies.
*
* @return the deployment status of all policies
*/
public Collection<PolicyStatus> getStatus() {
return accumulate(policyStatusService.getAllPolicyStatus());
}
/**
* Gets the deployment status of a policy.
*
* @param policy policy of interest
* @return the deployment status of all policies
*/
public Collection<PolicyStatus> getStatus(ToscaConceptIdentifierOptVersion policy) {
return accumulate(policyStatusService.getAllPolicyStatus(policy));
}
/**
* Gets the deployment status of a policy, returns only statuses, which matches the regex.
*
* @param patternString policy of interest
* @return the deployment status of all policies
*/
public Collection<PolicyStatus> getByRegex(String patternString) {
// try to make pattern out of regex
final var pattern = Pattern.compile(patternString);
// get all the statuses
final List<PdpPolicyStatus> policyStatuses = policyStatusService.getAllPolicyStatus();
// filter out statuses with the wrong name
final Collection<PdpPolicyStatus> pdpPolicyStatuses = filterWithPattern(pattern, policyStatuses);
return accumulate(pdpPolicyStatuses);
}
/**
* 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) {
var tracker = new DeploymentTracker();
for (PdpPolicyStatus status : source) {
if (status.isDeploy()) {
tracker.add(status);
}
}
return tracker.getDeploymentStatus();
}
/**
* Gets the status of all policies.
*
* @return the status of all policies
*/
public Collection<PdpPolicyStatus> getPolicyStatus() {
return policyStatusService.getAllPolicyStatus();
}
/**
* Gets the status of policies in a PdpGroup.
*
* @param pdpGroupName the pdp group
*/
public Collection<PdpPolicyStatus> getPolicyStatus(String pdpGroupName) {
return policyStatusService.getGroupPolicyStatus(pdpGroupName);
}
/**
* Gets the status of a policy in a PdpGroup.
*
* @param pdpGroupName the pdp group
* @param policy the policy
* @return the deployment status of the policy
*/
public Collection<PdpPolicyStatus> getPolicyStatus(String pdpGroupName, ToscaConceptIdentifierOptVersion policy) {
return policyStatusService.getAllPolicyStatus(policy).stream().filter(p -> p.getPdpGroup().equals(pdpGroupName))
.collect(Collectors.toList());
}
/**
* Gets the status of policies in a PdpGroup that match the given regex.
*
* @param pdpGroupName the pdp group
* @param patternString regex
* @return the deployment status of policies
*/
public Collection<PdpPolicyStatus> getPolicyStatusByRegex(String pdpGroupName, String patternString) {
final var pattern = Pattern.compile(patternString);
// get all the statuses
final Collection<PdpPolicyStatus> policyStatuses = getPolicyStatus(pdpGroupName);
// filter out statuses with the wrong name
return filterWithPattern(pattern, policyStatuses);
}
private Collection<PdpPolicyStatus> filterWithPattern(Pattern pattern, Collection<PdpPolicyStatus> policyStatuses) {
return policyStatuses
.stream()
.filter(policyStatus -> {
// Check policy name
final String policyName = policyStatus
.getPolicy()
.getName();
return pattern.matcher(policyName).matches();
})
.collect(Collectors.toList());
}
}
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