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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021 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.controlloop.runtime.supervision.comm;
import java.time.Instant;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import lombok.AllArgsConstructor;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantUpdates;
import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ControlLoopUpdate;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.provider.PolicyModelsProvider;
import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
import org.onap.policy.models.tosca.authorative.concepts.ToscaTopologyTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
/**
* This class is used to send ControlLoopUpdate messages to participants on DMaaP.
*/
@Component
@AllArgsConstructor
public class ControlLoopUpdatePublisher extends AbstractParticipantPublisher<ControlLoopUpdate> {
private static final Logger LOGGER = LoggerFactory.getLogger(ControlLoopUpdatePublisher.class);
private static final String POLICY_TYPE_ID = "policy_type_id";
private static final String POLICY_ID = "policy_id";
private final PolicyModelsProvider modelsProvider;
/**
* Send ControlLoopUpdate to Participant.
*
* @param controlLoop the ControlLoop
*/
public void send(ControlLoop controlLoop) {
var controlLoopUpdateMsg = new ControlLoopUpdate();
controlLoopUpdateMsg.setControlLoopId(controlLoop.getKey().asIdentifier());
controlLoopUpdateMsg.setMessageId(UUID.randomUUID());
controlLoopUpdateMsg.setTimestamp(Instant.now());
ToscaServiceTemplate toscaServiceTemplate;
try {
toscaServiceTemplate = modelsProvider.getServiceTemplateList(null, null).get(0);
} catch (PfModelException pfme) {
LOGGER.warn("Get of tosca service template failed, cannot send participantupdate", pfme);
return;
}
List<ParticipantUpdates> participantUpdates = new ArrayList<>();
for (ControlLoopElement element : controlLoop.getElements().values()) {
ToscaNodeTemplate toscaNodeTemplate = toscaServiceTemplate
.getToscaTopologyTemplate().getNodeTemplates().get(element.getDefinition().getName());
// If the ControlLoopElement has policy_type_id or policy_id, identify it as a PolicyControlLoopElement
// and pass respective PolicyTypes or Policies as part of toscaServiceTemplateFragment
if ((toscaNodeTemplate.getProperties().get(POLICY_TYPE_ID) != null)
|| (toscaNodeTemplate.getProperties().get(POLICY_ID) != null)) {
// ControlLoopElement for policy framework, send policies and policyTypes to participants
if ((toscaServiceTemplate.getPolicyTypes() != null)
|| (toscaServiceTemplate.getToscaTopologyTemplate().getPolicies() != null)) {
ToscaServiceTemplate toscaServiceTemplateFragment = new ToscaServiceTemplate();
toscaServiceTemplateFragment.setPolicyTypes(toscaServiceTemplate.getPolicyTypes());
ToscaTopologyTemplate toscaTopologyTemplate = new ToscaTopologyTemplate();
toscaTopologyTemplate.setPolicies(toscaServiceTemplate.getToscaTopologyTemplate().getPolicies());
toscaServiceTemplateFragment.setToscaTopologyTemplate(toscaTopologyTemplate);
toscaServiceTemplateFragment.setDataTypes(toscaServiceTemplate.getDataTypes());
element.setToscaServiceTemplateFragment(toscaServiceTemplateFragment);
}
}
prepareParticipantUpdate(element, participantUpdates);
}
controlLoopUpdateMsg.setParticipantUpdatesList(participantUpdates);
LOGGER.debug("ControlLoopUpdate message sent {}", controlLoopUpdateMsg);
super.send(controlLoopUpdateMsg);
}
private void prepareParticipantUpdate(ControlLoopElement clElement,
List<ParticipantUpdates> participantUpdates) {
if (participantUpdates.isEmpty()) {
participantUpdates.add(getControlLoopElementList(clElement));
} else {
var participantExists = false;
for (ParticipantUpdates participantUpdate : participantUpdates) {
if (participantUpdate.getParticipantId().equals(clElement.getParticipantId())) {
participantUpdate.getControlLoopElementList().add(clElement);
participantExists = true;
}
}
if (!participantExists) {
participantUpdates.add(getControlLoopElementList(clElement));
}
}
}
private ParticipantUpdates getControlLoopElementList(ControlLoopElement clElement) {
var participantUpdate = new ParticipantUpdates();
List<ControlLoopElement> controlLoopElementList = new ArrayList<>();
participantUpdate.setParticipantId(clElement.getParticipantId());
controlLoopElementList.add(clElement);
participantUpdate.setControlLoopElementList(controlLoopElementList);
return participantUpdate;
}
}
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