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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2022 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.element.service;
import jakarta.ws.rs.core.Response;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.onap.policy.clamp.acm.element.handler.MessagePublisher;
import org.onap.policy.clamp.acm.element.main.parameters.AcElement;
import org.onap.policy.clamp.models.acm.messages.dmaap.element.ElementStatus;
import org.onap.policy.clamp.models.acm.messages.rest.element.ElementConfig;
import org.onap.policy.clamp.models.acm.messages.rest.element.ElementType;
import org.onap.policy.models.base.PfModelRuntimeException;
import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
import org.springframework.stereotype.Service;
/**
* Starter Service.
*/
@Service
public class StarterService extends AbstractElementService implements AutoCloseable {
private ScheduledThreadPoolExecutor timerPool;
private ScheduledFuture<?> future;
private ToscaConceptIdentifier receiver;
private ToscaConceptIdentifier elementId;
private final MessagePublisher messagePublisher;
public StarterService(MessagePublisher messagePublisher, AcElement acElement) {
this.messagePublisher = messagePublisher;
this.elementId = acElement.getElementId();
}
@Override
public ElementType getType() {
return ElementType.STARTER;
}
/**
* Deactivate Scheduled ThreadPool Executor.
*/
@Override
public void deactivate() {
if (timerPool != null) {
if (future != null) {
future.cancel(true);
}
timerPool.shutdown();
timerPool = null;
}
}
@Override
public void active(ElementConfig elementConfig) {
if (timerPool != null) {
throw new PfModelRuntimeException(Response.Status.CONFLICT, "StarterService alredy actived!");
}
receiver = elementConfig.getReceiverId();
timerPool = new ScheduledThreadPoolExecutor(1);
timerPool.setRemoveOnCancelPolicy(true);
future = timerPool.scheduleAtFixedRate(this::sendMessage, elementConfig.getTimerMs(),
elementConfig.getTimerMs(), TimeUnit.MILLISECONDS);
}
private void sendMessage() {
var messasge = new ElementStatus();
messasge.setElementId(receiver);
// Add Tracking
messasge.setMessage("starter: " + elementId);
messagePublisher.publishMsg(messasge);
}
@Override
public void update(ElementConfig elementConfig) {
if (timerPool == null) {
throw new PfModelRuntimeException(Response.Status.CONFLICT, "StarterService not actived!");
}
if (future != null) {
future.cancel(true);
}
future = timerPool.scheduleAtFixedRate(this::sendMessage, elementConfig.getTimerMs(),
elementConfig.getTimerMs(), TimeUnit.MILLISECONDS);
}
@Override
public void close() throws Exception {
deactivate();
}
}
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