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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021-2023 Nordix Foundation.
* ================================================================================
* Modifications 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.clamp.acm.participant.policy.main.handler;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.ws.rs.core.Response.Status;
import lombok.RequiredArgsConstructor;
import lombok.Setter;
import org.apache.http.HttpStatus;
import org.onap.policy.clamp.acm.participant.intermediary.api.AutomationCompositionElementListener;
import org.onap.policy.clamp.acm.participant.intermediary.api.ParticipantIntermediaryApi;
import org.onap.policy.clamp.acm.participant.policy.client.PolicyApiHttpClient;
import org.onap.policy.clamp.acm.participant.policy.client.PolicyPapHttpClient;
import org.onap.policy.clamp.models.acm.concepts.AcElementDeploy;
import org.onap.policy.clamp.models.acm.concepts.DeployState;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.pdp.concepts.DeploymentSubGroup;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
/**
* This class handles implementation of automationCompositionElement updates.
*/
@Component
@RequiredArgsConstructor
public class AutomationCompositionElementHandler implements AutomationCompositionElementListener {
private static final Logger LOGGER = LoggerFactory.getLogger(AutomationCompositionElementHandler.class);
private final Map<UUID, ToscaServiceTemplate> serviceTemplateMap = new LinkedHashMap<>();
private final PolicyApiHttpClient apiHttpClient;
private final PolicyPapHttpClient papHttpClient;
@Setter
private ParticipantIntermediaryApi intermediaryApi;
/**
* Callback method to handle a automation composition element state change.
*
* @param automationCompositionId the ID of the automation composition
* @param automationCompositionElementId the ID of the automation composition element
*/
@Override
public void undeploy(UUID automationCompositionId, UUID automationCompositionElementId) throws PfModelException {
var automationCompositionDefinition = serviceTemplateMap.get(automationCompositionElementId);
if (automationCompositionDefinition == null) {
LOGGER.debug("No policies to undeploy to {}", automationCompositionElementId);
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId,
automationCompositionElementId, DeployState.UNDEPLOYED, null, "Undeployed");
return;
}
var policyList = getPolicyList(automationCompositionDefinition);
undeployPolicies(policyList, automationCompositionElementId);
var policyTypeList = getPolicyTypeList(automationCompositionDefinition);
deletePolicyData(policyTypeList, policyList);
serviceTemplateMap.remove(automationCompositionElementId);
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId,
automationCompositionElementId, DeployState.UNDEPLOYED, null, "Undeployed");
}
private void deletePolicyData(List<ToscaConceptIdentifier> policyTypeList,
List<ToscaConceptIdentifier> policyList) {
// Delete all policies of this automationComposition from policy framework
for (var policy : policyList) {
apiHttpClient.deletePolicy(policy.getName(), policy.getVersion());
}
// Delete all policy types of this automation composition from policy framework
for (var policyType : policyTypeList) {
apiHttpClient.deletePolicyType(policyType.getName(), policyType.getVersion());
}
}
private void deployPolicies(List<ToscaConceptIdentifier> policyList, UUID automationCompositionId,
UUID automationCompositionElementId) throws PfModelException {
var deployFailure = false;
// Deploy all policies of this automationComposition from Policy Framework
if (!policyList.isEmpty()) {
for (var policy : policyList) {
var deployPolicyResp = papHttpClient.handlePolicyDeployOrUndeploy(policy.getName(), policy.getVersion(),
DeploymentSubGroup.Action.POST).getStatus();
if (deployPolicyResp != HttpStatus.SC_ACCEPTED) {
deployFailure = true;
}
}
LOGGER.info("Policies deployed to {} successfully", automationCompositionElementId);
} else {
LOGGER.debug("No policies to deploy to {}", automationCompositionElementId);
}
if (!deployFailure) {
// Update the AC element state
intermediaryApi.sendAcElementInfo(automationCompositionId, automationCompositionElementId, "IDLE",
"ENABLED", Map.of());
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId,
automationCompositionElementId, DeployState.DEPLOYED, null, "Deployed");
} else {
throw new PfModelException(Status.BAD_REQUEST, "Deploy of Policy failed.");
}
}
private void undeployPolicies(List<ToscaConceptIdentifier> policyList, UUID automationCompositionElementId) {
// Undeploy all policies of this automation composition from Policy Framework
if (!policyList.isEmpty()) {
for (var policy : policyList) {
papHttpClient.handlePolicyDeployOrUndeploy(policy.getName(), policy.getVersion(),
DeploymentSubGroup.Action.DELETE);
}
LOGGER.debug("Undeployed policies from {} successfully", automationCompositionElementId);
} else {
LOGGER.debug("No policies are deployed to {}", automationCompositionElementId);
}
}
/**
* Callback method to handle an update on automation composition element.
*
* @param automationCompositionId the automationComposition Id
* @param element the information on the automation composition element
* @param properties properties Map
* @throws PfModelException in case of an exception
*/
@Override
public void deploy(UUID automationCompositionId, AcElementDeploy element, Map<String, Object> properties)
throws PfModelException {
var createPolicyTypeResp = HttpStatus.SC_OK;
var createPolicyResp = HttpStatus.SC_OK;
var automationCompositionDefinition = element.getToscaServiceTemplateFragment();
if (automationCompositionDefinition.getToscaTopologyTemplate() == null) {
throw new PfModelException(Status.BAD_REQUEST, "ToscaTopologyTemplate not defined");
}
serviceTemplateMap.put(element.getId(), automationCompositionDefinition);
if (automationCompositionDefinition.getPolicyTypes() != null) {
LOGGER.info("Found Policy Types in automation composition definition: {} , Creating Policy Types",
automationCompositionDefinition.getName());
createPolicyTypeResp = apiHttpClient.createPolicyType(automationCompositionDefinition).getStatus();
}
if (automationCompositionDefinition.getToscaTopologyTemplate().getPolicies() != null) {
LOGGER.info("Found Policies in automation composition definition: {} , Creating Policies",
automationCompositionDefinition.getName());
createPolicyResp = apiHttpClient.createPolicy(automationCompositionDefinition).getStatus();
}
if (createPolicyTypeResp == HttpStatus.SC_OK && createPolicyResp == HttpStatus.SC_OK) {
LOGGER.info(
"PolicyTypes/Policies for the automation composition element : {} are created " + "successfully",
element.getId());
var policyList = getPolicyList(automationCompositionDefinition);
deployPolicies(policyList, automationCompositionId, element.getId());
} else {
throw new PfModelException(Status.BAD_REQUEST,
"Creation of PolicyTypes/Policies failed. Policies will not be deployed.");
}
}
private List<ToscaConceptIdentifier> getPolicyTypeList(ToscaServiceTemplate serviceTemplate) {
List<ToscaConceptIdentifier> policyTypeList = new ArrayList<>();
if (serviceTemplate.getPolicyTypes() != null) {
for (var policyType : serviceTemplate.getPolicyTypes().values()) {
policyTypeList.add(policyType.getKey().asIdentifier());
}
}
return policyTypeList;
}
private List<ToscaConceptIdentifier> getPolicyList(ToscaServiceTemplate serviceTemplate) {
List<ToscaConceptIdentifier> policyList = new ArrayList<>();
if (serviceTemplate.getToscaTopologyTemplate().getPolicies() != null) {
for (var gotPolicyMap : serviceTemplate.getToscaTopologyTemplate().getPolicies()) {
for (var policy : gotPolicyMap.values()) {
policyList.add(policy.getKey().asIdentifier());
}
}
}
return policyList;
}
}
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