import io.netty.util.TimerTask;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeUnit;
+import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceInitializationPhaseHandler;
import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
private HashedWheelTimer hashedWheelTimer;
- private ConcurrentHashMap<DeviceContext, StatisticsContext> contexts = new ConcurrentHashMap();
+ private final ConcurrentHashMap<DeviceContext, StatisticsContext> contexts = new ConcurrentHashMap<>();
private final TimeCounter timeCounter = new TimeCounter();
if (null == hashedWheelTimer) {
LOG.trace("This is first device that delivered timer. Starting statistics polling immediately.");
hashedWheelTimer = deviceContext.getTimer();
- pollStatistics();
}
final StatisticsContext statisticsContext = new StatisticsContextImpl(deviceContext);
if (statisticsGathered.booleanValue()) {
//there are some statistics on device worth gathering
contexts.put(deviceContext, statisticsContext);
+ pollStatistics(deviceContext, statisticsContext);
}
LOG.trace("Device dynamic info collecting done. Going to announce raise to next level.");
deviceInitPhaseHandler.onDeviceContextLevelUp(deviceContext);
});
}
- private void pollStatistics() {
- try {
- timeCounter.markStart();
- for (final StatisticsContext statisticsContext : contexts.values()) {
- ListenableFuture deviceStatisticsCollectionFuture = statisticsContext.gatherDynamicData();
- Futures.addCallback(deviceStatisticsCollectionFuture, new FutureCallback() {
- @Override
- public void onSuccess(final Object o) {
- timeCounter.addTimeMark();
- }
-
- @Override
- public void onFailure(final Throwable throwable) {
- timeCounter.addTimeMark();
- LOG.info("Statistics gathering for single node was not successful.");
- }
- });
+ private void pollStatistics(final DeviceContext deviceContext, final StatisticsContext statisticsContext) {
+ timeCounter.markStart();
+ ListenableFuture<Boolean> deviceStatisticsCollectionFuture = statisticsContext.gatherDynamicData();
+ Futures.addCallback(deviceStatisticsCollectionFuture, new FutureCallback<Boolean>() {
+ @Override
+ public void onSuccess(final Boolean o) {
+ timeCounter.addTimeMark();
+ calculateTimerDelay();
+ scheduleNextPolling(deviceContext, statisticsContext);
}
- } finally {
- calculateTimerDelay();
- if (null != hashedWheelTimer) {
- hashedWheelTimer.newTimeout(new TimerTask() {
- @Override
- public void run(final Timeout timeout) throws Exception {
- pollStatistics();
- }
- }, currentTimerDelay, TimeUnit.MILLISECONDS);
+
+ @Override
+ public void onFailure(final Throwable throwable) {
+ timeCounter.addTimeMark();
+ LOG.info("Statistics gathering for single node was not successful: {}", throwable.getMessage());
+ LOG.debug("Statistics gathering for single node was not successful.. ", throwable);
+ if (ConnectionContext.CONNECTION_STATE.WORKING.equals(deviceContext.getPrimaryConnectionContext().getConnectionState())) {
+ calculateTimerDelay();
+ scheduleNextPolling(deviceContext, statisticsContext);
+ }
}
+ });
+ }
+
+ private void scheduleNextPolling(final DeviceContext deviceContext, final StatisticsContext statisticsContext) {
+ if (null != hashedWheelTimer) {
+ hashedWheelTimer.newTimeout(new TimerTask() {
+ @Override
+ public void run(final Timeout timeout) throws Exception {
+ pollStatistics(deviceContext, statisticsContext);
+ }
+ }, currentTimerDelay, TimeUnit.MILLISECONDS);
}
}
@Override
public void onDeviceContextClosed(final DeviceContext deviceContext) {
- if (contexts.containsKey(deviceContext)) {
+ StatisticsContext statisticsContext = contexts.remove(deviceContext);
+ if (null != statisticsContext) {
LOG.trace("Removing device context from stack. No more statistics gathering for node {}", deviceContext.getDeviceState().getNodeId());
- contexts.remove(deviceContext);
- StatisticsContext statisticsContext = contexts.remove(deviceContext);
try {
statisticsContext.close();
} catch (Exception e) {
private int marksCount = 0;
public void markStart() {
- beginningOfTime = System.currentTimeMillis();
+ beginningOfTime = System.nanoTime();
delta = 0;
marksCount = 0;
}
public void addTimeMark() {
- delta += System.currentTimeMillis() - beginningOfTime;
+ delta += System.nanoTime() - beginningOfTime;
marksCount++;
}
if (marksCount > 0) {
average = delta / marksCount;
}
- return average;
+ return TimeUnit.NANOSECONDS.toMillis(average);
}
}