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/*
* ============LICENSE_START=======================================================
* ONAP : ccsdk features
* ================================================================================
* Copyright (C) 2019 highstreet technologies GmbH Intellectual Property.
* All rights reserved.
* ================================================================================
* Update Copyright (C) 2020 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.
* ============LICENSE_END=======================================================
*
*/
package org.onap.ccsdk.features.sdnr.wt.mountpointstateprovider.impl;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.jdt.annotation.NonNull;
import org.json.JSONObject;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.VESCollectorCfgService;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.VESCollectorService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MountpointStatePublisher implements Runnable {
private static final Logger LOG = LoggerFactory.getLogger(MountpointStatePublisher.class);
private List<JSONObject> stateObjects = new LinkedList<>();
private boolean publish = true;
private int publishPause = 5000; // Default pause between fetch - 5 seconds
private VESCollectorService vesCollectorService;
public MountpointStatePublisher(@NonNull VESCollectorService vesCollectorService) {
this.vesCollectorService = vesCollectorService;
}
public void addToPublish(JSONObject publishObj) {
getStateObjects().add(publishObj);
}
public synchronized List<JSONObject> getStateObjects() {
return stateObjects;
}
public void stop() {
publish = false;
}
private void pauseThread() throws InterruptedException {
if (publishPause > 0) {
LOG.debug("No data yet to publish. Pausing {} ms before retry ", publishPause);
Thread.sleep(publishPause);
} else {
LOG.debug("No data yet to publish. No publish pause specified - retrying immediately");
}
}
public String createVESMessage(JSONObject msg, VESCollectorCfgService vesCfg) {
MountpointStateVESMessageFormatter vesFormatter = new MountpointStateVESMessageFormatter(vesCfg);
return vesFormatter.createVESMessage(msg);
}
@Override
public void run() {
while (publish) {
try {
if (!getStateObjects().isEmpty()) {
JSONObject obj = ((LinkedList<JSONObject>) getStateObjects()).removeFirst();
String vesMsg = createVESMessage(obj, vesCollectorService.getConfig());
this.vesCollectorService.publishVESMessage(vesMsg);
} else {
pauseThread();
}
} catch (Exception ex) {
LOG.error("Exception while publishing message, ignoring and continuing ... ", ex);
}
}
}
}
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