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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 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.apex.starter.handler;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import lombok.Getter;
import lombok.Setter;
import org.onap.policy.common.endpoints.event.comm.TopicSink;
import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This class is used to send pdp status messages to pap using TopicSinkClient.
*
* @author Ajith Sreekumar (ajith.sreekumar@est.tech)
*/
public class PdpStatusPublisher extends TimerTask {
private static final Logger LOGGER = LoggerFactory.getLogger(CommunicationHandler.class);
private List<TopicSink> topicSinks;
private TopicSinkClient topicSinkClient;
private Timer timer;
private PdpMessageHandler pdpMessageHandler;
@Getter
@Setter(lombok.AccessLevel.PRIVATE)
private volatile boolean alive = false;
/**
* Constructor for instantiating PdpStatusPublisher
*
* @param pdpStatus
* @param topicSinks
* @param apexStarterParameterGroup
*/
public PdpStatusPublisher(final List<TopicSink> topicSinks, final int interval) {
this.topicSinks = topicSinks;
this.topicSinkClient = new TopicSinkClient(topicSinks.get(0));
this.pdpMessageHandler = new PdpMessageHandler();
timer = new Timer(false);
timer.scheduleAtFixedRate(this, 0, interval * 1000L);
setAlive(true);
}
@Override
public void run() {
topicSinkClient.send(pdpMessageHandler.createPdpStatusFromContext());
LOGGER.info("Sent heartbeat to PAP");
}
public void terminate() {
timer.cancel();
timer.purge();
setAlive(false);
}
public PdpStatusPublisher updateInterval(final int interval) {
terminate();
return new PdpStatusPublisher(topicSinks, interval);
}
public void send() {
topicSinkClient.send(pdpMessageHandler.createPdpStatusFromContext());
LOGGER.info("Sent pdp status response message to PAP");
}
}
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