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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 lombok.AllArgsConstructor;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElementDefinition;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantDefinition;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantUtils;
import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantUpdate;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.provider.PolicyModelsProvider;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
/**
* This class is used to send ParticipantUpdate messages to participants on DMaaP.
*/
@Component
@AllArgsConstructor
public class ParticipantUpdatePublisher extends AbstractParticipantPublisher<ParticipantUpdate> {
private static final Logger LOGGER = LoggerFactory.getLogger(ParticipantUpdatePublisher.class);
private final PolicyModelsProvider modelsProvider;
/**
* Send ParticipantUpdate to Participant.
*
* @param participantId the participant Id
* @param participantType the participant Type
*/
public void send(ToscaConceptIdentifier participantId, ToscaConceptIdentifier participantType,
boolean commissionFlag) {
var message = new ParticipantUpdate();
message.setParticipantId(participantId);
message.setParticipantType(participantType);
message.setTimestamp(Instant.now());
ToscaServiceTemplate toscaServiceTemplate = null;
try {
var list = modelsProvider.getServiceTemplateList(null, null);
if (!list.isEmpty()) {
toscaServiceTemplate = list.get(0);
}
} catch (PfModelException pfme) {
LOGGER.warn("Get of tosca service template failed, cannot send participantupdate", pfme);
return;
}
List<ParticipantDefinition> participantDefinitionUpdates = new ArrayList<>();
if (toscaServiceTemplate != null) {
for (var toscaInputEntry : toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates().entrySet()) {
if (ParticipantUtils.checkIfNodeTemplateIsControlLoopElement(toscaInputEntry.getValue(),
toscaServiceTemplate)) {
var clParticipantType =
ParticipantUtils.findParticipantType(toscaInputEntry.getValue().getProperties());
prepareParticipantDefinitionUpdate(clParticipantType, toscaInputEntry.getKey(),
toscaInputEntry.getValue(), participantDefinitionUpdates);
}
}
}
if (commissionFlag) {
// Commission the controlloop but sending participantdefinitions to participants
message.setParticipantDefinitionUpdates(participantDefinitionUpdates);
} else {
// DeCommission the controlloop but deleting participantdefinitions on participants
message.setParticipantDefinitionUpdates(null);
}
LOGGER.debug("Participant Update sent {}", message);
super.send(message);
}
private void prepareParticipantDefinitionUpdate(ToscaConceptIdentifier clParticipantType, String entryKey,
ToscaNodeTemplate entryValue, List<ParticipantDefinition> participantDefinitionUpdates) {
var clDefinition = new ControlLoopElementDefinition();
clDefinition.setClElementDefinitionId(new ToscaConceptIdentifier(entryKey, entryValue.getVersion()));
clDefinition.setControlLoopElementToscaNodeTemplate(entryValue);
List<ControlLoopElementDefinition> controlLoopElementDefinitionList = new ArrayList<>();
if (participantDefinitionUpdates.isEmpty()) {
participantDefinitionUpdates
.add(getParticipantDefinition(clDefinition, clParticipantType, controlLoopElementDefinitionList));
} else {
var participantExists = false;
for (ParticipantDefinition participantDefinitionUpdate : participantDefinitionUpdates) {
if (participantDefinitionUpdate.getParticipantType().equals(clParticipantType)) {
participantDefinitionUpdate.getControlLoopElementDefinitionList().add(clDefinition);
participantExists = true;
}
}
if (!participantExists) {
participantDefinitionUpdates.add(
getParticipantDefinition(clDefinition, clParticipantType, controlLoopElementDefinitionList));
}
}
}
private ParticipantDefinition getParticipantDefinition(ControlLoopElementDefinition clDefinition,
ToscaConceptIdentifier clParticipantType,
List<ControlLoopElementDefinition> controlLoopElementDefinitionList) {
var participantDefinition = new ParticipantDefinition();
participantDefinition.setParticipantType(clParticipantType);
controlLoopElementDefinitionList.add(clDefinition);
participantDefinition.setControlLoopElementDefinitionList(controlLoopElementDefinitionList);
return participantDefinition;
}
}
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