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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2022-2023 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.clamp.acm.participant.a1pms.handler;
import java.lang.invoke.MethodHandles;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import javax.validation.Validation;
import javax.validation.ValidationException;
import lombok.AccessLevel;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import org.apache.http.HttpStatus;
import org.onap.policy.clamp.acm.participant.a1pms.exception.A1PolicyServiceException;
import org.onap.policy.clamp.acm.participant.a1pms.models.ConfigurationEntity;
import org.onap.policy.clamp.acm.participant.a1pms.webclient.AcA1PmsClient;
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.models.acm.concepts.AcElementDeploy;
import org.onap.policy.clamp.models.acm.concepts.AcTypeState;
import org.onap.policy.clamp.models.acm.concepts.AutomationCompositionElementDefinition;
import org.onap.policy.clamp.models.acm.concepts.DeployState;
import org.onap.policy.clamp.models.acm.concepts.LockState;
import org.onap.policy.clamp.models.acm.concepts.StateChangeResult;
import org.onap.policy.clamp.models.acm.utils.AcmUtils;
import org.onap.policy.common.utils.coder.Coder;
import org.onap.policy.common.utils.coder.CoderException;
import org.onap.policy.common.utils.coder.StandardCoder;
import org.onap.policy.models.base.PfModelException;
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 Coder CODER = new StandardCoder();
private static final Logger LOGGER = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private final ParticipantIntermediaryApi intermediaryApi;
private final AcA1PmsClient acA1PmsClient;
// Map of acElement Id and A1PMS services
@Getter(AccessLevel.PACKAGE)
private final Map<UUID, ConfigurationEntity> configRequestMap = new ConcurrentHashMap<>();
/**
* Handle a automation composition element state change.
*
* @param automationCompositionId the ID of the automation composition
* @param automationCompositionElementId the ID of the automation composition element
* @throws PfModelException in case of a model exception
*/
@Override
public void undeploy(UUID automationCompositionId, UUID automationCompositionElementId)
throws A1PolicyServiceException {
var configurationEntity = configRequestMap.get(automationCompositionElementId);
if (configurationEntity != null && acA1PmsClient.isPmsHealthy()) {
acA1PmsClient.deleteService(configurationEntity.getPolicyServiceEntities());
configRequestMap.remove(automationCompositionElementId);
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId,
automationCompositionElementId, DeployState.UNDEPLOYED, null, StateChangeResult.NO_ERROR,
"Undeployed");
} else {
LOGGER.warn("Failed to connect with A1PMS. Service configuration is: {}", configurationEntity);
throw new A1PolicyServiceException(HttpStatus.SC_SERVICE_UNAVAILABLE, "Unable to connect with A1PMS");
}
}
/**
* Callback method to handle an update on an automation composition element.
*
* @param automationCompositionId the ID of the automation composition
* @param element the information on the automation composition element
* @param properties properties Map
*/
@Override
public void deploy(UUID automationCompositionId, AcElementDeploy element, Map<String, Object> properties)
throws A1PolicyServiceException {
try {
var configurationEntity = CODER.convert(properties, ConfigurationEntity.class);
var violations = Validation.buildDefaultValidatorFactory().getValidator().validate(configurationEntity);
if (violations.isEmpty()) {
if (acA1PmsClient.isPmsHealthy()) {
acA1PmsClient.createService(configurationEntity.getPolicyServiceEntities());
configRequestMap.put(element.getId(), configurationEntity);
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId, element.getId(),
DeployState.DEPLOYED, null, StateChangeResult.NO_ERROR, "Deployed");
} else {
LOGGER.error("Failed to connect with A1PMS");
throw new A1PolicyServiceException(HttpStatus.SC_SERVICE_UNAVAILABLE,
"Unable to connect with A1PMS");
}
} else {
LOGGER.error("Violations found in the config request parameters: {}", violations);
throw new ValidationException("Constraint violations in the config request");
}
} catch (ValidationException | CoderException | A1PolicyServiceException e) {
throw new A1PolicyServiceException(HttpStatus.SC_BAD_REQUEST, "Invalid Configuration", e);
}
}
@Override
public void lock(UUID instanceId, UUID elementId) throws PfModelException {
intermediaryApi.updateAutomationCompositionElementState(instanceId, elementId, null, LockState.LOCKED,
StateChangeResult.NO_ERROR, "Locked");
}
@Override
public void unlock(UUID instanceId, UUID elementId) throws PfModelException {
intermediaryApi.updateAutomationCompositionElementState(instanceId, elementId, null, LockState.UNLOCKED,
StateChangeResult.NO_ERROR, "Unlocked");
}
@Override
public void delete(UUID instanceId, UUID elementId) throws PfModelException {
intermediaryApi.updateAutomationCompositionElementState(instanceId, elementId, DeployState.DELETED, null,
StateChangeResult.NO_ERROR, "Deleted");
}
@Override
public void update(UUID instanceId, AcElementDeploy element, Map<String, Object> properties)
throws PfModelException {
intermediaryApi.updateAutomationCompositionElementState(instanceId, element.getId(), DeployState.DEPLOYED, null,
StateChangeResult.NO_ERROR, "Update not supported");
}
@Override
public void prime(UUID compositionId, List<AutomationCompositionElementDefinition> elementDefinitionList)
throws PfModelException {
intermediaryApi.updateCompositionState(compositionId, AcTypeState.PRIMED, StateChangeResult.NO_ERROR, "Primed");
}
@Override
public void deprime(UUID compositionId) throws PfModelException {
intermediaryApi.updateCompositionState(compositionId, AcTypeState.COMMISSIONED, StateChangeResult.NO_ERROR,
"Deprimed");
}
@Override
public void handleRestartComposition(UUID compositionId,
List<AutomationCompositionElementDefinition> elementDefinitionList, AcTypeState state)
throws PfModelException {
var finalState = AcTypeState.PRIMED.equals(state) || AcTypeState.PRIMING.equals(state) ? AcTypeState.PRIMED
: AcTypeState.COMMISSIONED;
intermediaryApi.updateCompositionState(compositionId, finalState, StateChangeResult.NO_ERROR, "Restarted");
}
@Override
public void handleRestartInstance(UUID automationCompositionId, AcElementDeploy element,
Map<String, Object> properties, DeployState deployState, LockState lockState) throws PfModelException {
if (DeployState.DEPLOYING.equals(deployState)) {
deploy(automationCompositionId, element, properties);
return;
}
if (DeployState.UNDEPLOYING.equals(deployState) || DeployState.DEPLOYED.equals(deployState)
|| DeployState.UPDATING.equals(deployState)) {
try {
var configurationEntity = CODER.convert(properties, ConfigurationEntity.class);
configRequestMap.put(element.getId(), configurationEntity);
} catch (ValidationException | CoderException e) {
throw new A1PolicyServiceException(HttpStatus.SC_BAD_REQUEST, "Invalid Configuration", e);
}
}
if (DeployState.UNDEPLOYING.equals(deployState)) {
undeploy(automationCompositionId, element.getId());
return;
}
deployState = AcmUtils.deployCompleted(deployState);
lockState = AcmUtils.lockCompleted(deployState, lockState);
intermediaryApi.updateAutomationCompositionElementState(automationCompositionId, element.getId(), deployState,
lockState, StateChangeResult.NO_ERROR, "Restarted");
}
}
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