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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.models.sim.pdp.comm;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import org.onap.policy.common.endpoints.event.comm.TopicSink;
import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClient;
import org.onap.policy.models.pdp.concepts.PdpStatus;
import org.onap.policy.models.sim.pdp.handler.PdpMessageHandler;
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(PdpStatusPublisher.class);
private TopicSinkClient topicSinkClient;
private Timer timer;
private long interval;
/**
* Constructor for instantiating PdpStatusPublisher.
*
* @param topicSinks the topic sinks
* @param interval time interval to send pdp status
*/
public PdpStatusPublisher(final List<TopicSink> topicSinks, final long interval) {
this.topicSinkClient = new TopicSinkClient(topicSinks.get(0));
this.interval = interval;
timer = new Timer(false);
timer.scheduleAtFixedRate(this, 0, interval);
}
@Override
public void run() {
final PdpStatus pdpStatus = new PdpMessageHandler().createPdpStatusFromContext();
topicSinkClient.send(pdpStatus);
LOGGER.debug("Sent heartbeat to PAP - {}", pdpStatus);
}
/**
* Terminates the current timer.
*/
public void terminate() {
timer.cancel();
timer.purge();
}
/**
* Get the current time interval used by the timer task.
*
* @return interval the current time interval
*/
public long getInterval() {
return interval;
}
/**
* Method to send pdp status message to pap on demand.
*
* @param pdpStatus the pdp status
*/
public void send(final PdpStatus pdpStatus) {
topicSinkClient.send(pdpStatus);
LOGGER.debug("Sent pdp status message to PAP - {}", pdpStatus);
}
}
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