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/*
* ============LICENSE_START========================================================================
* ONAP : ccsdk feature sdnr wt
* =================================================================================================
* Copyright (C) 2019 highstreet technologies GmbH 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.devicemanager.performancemanager.impl;
import java.util.Iterator;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import org.onap.ccsdk.features.sdnr.wt.dataprovider.model.DataProvider;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.service.NetworkElement;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.ne.service.PerformanceDataProvider;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.service.NetconfNetworkElementService;
import org.onap.ccsdk.features.sdnr.wt.devicemanager.types.PerformanceDataLtp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class PerformanceManagerTask implements Runnable {
private static final Logger LOG = LoggerFactory.getLogger(PerformanceManagerTask.class);
private static final String LOGMARKER = "PMTick";
private int tickCounter = 0;
private final ConcurrentHashMap<String, PerformanceDataProvider> queue = new ConcurrentHashMap<>();
private final DataProvider databaseService;
private final ScheduledExecutorService scheduler;
private final long seconds;
private ScheduledFuture<?> taskHandle = null;
private Iterator<PerformanceDataProvider> neIterator = null;
private PerformanceDataProvider actualNE = null;
private final NetconfNetworkElementService netconfNetworkElementService;
/**
* Constructor of PM Task
*
* @param seconds seconds to call PM Task
* @param microwaveHistoricalPerformanceWriterService DB Service to load PM data to
* @param netconfNetworkElementService to write into log
*/
public PerformanceManagerTask(long seconds, DataProvider microwaveHistoricalPerformanceWriterService,
NetconfNetworkElementService netconfNetworkElementService) {
LOG.debug("Init task {}", PerformanceManagerTask.class.getSimpleName());
this.seconds = seconds;
this.databaseService = microwaveHistoricalPerformanceWriterService;
this.scheduler = Executors.newSingleThreadScheduledExecutor();
this.netconfNetworkElementService = netconfNetworkElementService;
}
/**
* Start PM Task
*/
public void start() {
LOG.info("PM task created");
taskHandle = this.scheduler.scheduleAtFixedRate(this, 0, seconds, TimeUnit.SECONDS);
LOG.info("PM task scheduled");
}
/**
* Stop everything
*/
public void stop() {
LOG.info("Stop {}", PerformanceManagerImpl.class.getSimpleName());
if (taskHandle != null) {
taskHandle.cancel(true);
try {
scheduler.awaitTermination(10, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOG.debug("Schdule stopped.", e);
// Restore interrupted state...
Thread.currentThread().interrupt();
}
}
}
/**
* Add NE/Mountpoint to PM Processig
*
* @param mountPointNodeName to be added
* @param ne that is connected to the mountpoint
*/
public void registration(String mountPointNodeName, NetworkElement ne) {
Optional<PerformanceDataProvider> oPmNe = ne.getService(PerformanceDataProvider.class);
if (oPmNe.isPresent()) {
queue.put(mountPointNodeName, oPmNe.get());
}
}
/**
* Remove mountpoint/NE from PM process
*
* @param mountPointNodeName that has to be removed
*/
public void deRegistration(String mountPointNodeName) {
LOG.debug("Deregister {}", mountPointNodeName);
PerformanceDataProvider removedNE = queue.remove(mountPointNodeName);
if (removedNE == null) {
LOG.warn("Couldn't delete {}", mountPointNodeName);
}
}
/*--------------------------------------------------------------
* Task to read PM data from NE
*/
/**
* Task runner to read all performance data from Network Elements. Catch exceptions to make sure, that the Task is
* not stopped.
*/
@Override
public void run() {
String mountpointName = "No NE";
if (actualNE != null && actualNE.getAcessor().isPresent()) {
mountpointName = actualNE.getAcessor().get().getNodeId().getValue();
}
LOG.debug("{} start {} Start with mountpoint {}", LOGMARKER, tickCounter, mountpointName);
//Proceed to next NE/Interface
getNextInterface(mountpointName);
LOG.debug("{} {} Next interface to handle {}", LOGMARKER, tickCounter,
actualNE == null ? "No NE/IF" : actualNE.pmStatusToString());
if (actualNE != null) {
try {
LOG.debug("{} Start to read PM from NE ({})", LOGMARKER, tickCounter);
Optional<PerformanceDataLtp> allPm = actualNE.getLtpHistoricalPerformanceData();
if (allPm.isPresent()) {
LOG.debug("{} {} Got PM list. Start write to DB", LOGMARKER, tickCounter);
databaseService.doWritePerformanceData(allPm.get().getList());
}
LOG.debug("{} {} PM List end.", LOGMARKER, tickCounter);
} catch (Exception e) {
StringBuffer msg = new StringBuffer();
msg.append(e.getMessage());
msg.append(" - ");
msg.append(e.getCause().toString());
msg.append(" - ");
msg.append(actualNE.pmStatusToString());
String msgString = msg.toString();
LOG.warn("{} {} PM read/write failed. Write log entry {}", LOGMARKER, tickCounter, msgString);
netconfNetworkElementService.writeToEventLog(mountpointName, "PM Problem", msgString);
}
}
LOG.debug("{} end {}", LOGMARKER, tickCounter);
tickCounter++;
}
/**
* Reset queue to start from beginning
*/
private void resetQueue() {
actualNE = null;
neIterator = null;
}
/**
* Get then next interface in the list. First try to find a next on the actual NE. If not available search next
* interface at a NE Special Situations to handle: Empty queue, NEs, but no interfaces
*/
private void getNextInterface(String mountpointName) {
boolean started = false;
int loopCounter = 0;
LOG.debug("{} {} getNextInterface enter. Queue size {} ", LOGMARKER, tickCounter, queue.size());
if (actualNE != null && !queue.containsValue(actualNE)) {
LOG.debug("{} {} NE Removed duringprocessing A", LOGMARKER, tickCounter);
resetQueue();
}
while (true) {
if (loopCounter++ >= 1000) {
LOG.error("{} {} Problem in PM iteration. endless condition reached", LOGMARKER, tickCounter);
resetQueue();
break;
}
LOG.debug("{} {} Loop ne {}:neiterator {}:Interfaceiterator:{} Loop:{}", LOGMARKER, tickCounter,
actualNE == null ? "null" : mountpointName, neIterator == null ? "null" : neIterator.hasNext(),
actualNE == null ? "null" : actualNE.hasNext(), loopCounter);
if (actualNE != null && actualNE.hasNext()) {
// Yes, there is an interface, deliver back
LOG.debug("{} {} getNextInterface yes A", LOGMARKER, tickCounter);
actualNE.next();
break;
} else {
// No element in neInterfaceInterator .. get next NE and try
if (neIterator != null && neIterator.hasNext()) {
// Set a new NE
LOG.debug("{} {} Next NE A", LOGMARKER, tickCounter);
actualNE = neIterator.next();
actualNE.resetPMIterator();
} else {
// Goto start condition 1) first entry 2) end of queue reached
LOG.debug("{} {} Reset", LOGMARKER, tickCounter);
resetQueue();
if (queue.isEmpty()) {
LOG.debug("{} {} no nextInterfac. queue empty", LOGMARKER, tickCounter);
break;
} else if (!started) {
LOG.debug("{} {} getNextInterface start condition. Get interator.", LOGMARKER, tickCounter);
neIterator = queue.values().iterator();
started = true;
} else {
LOG.debug("{} {} no nextInterface", LOGMARKER, tickCounter);
break;
}
}
}
} //while
if (actualNE != null && !queue.containsValue(actualNE)) {
LOG.debug("{} {} NE Removed duringprocessing B", LOGMARKER, tickCounter);
resetQueue();
}
}
}
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