BUG-8733: refactor IdInts listeners

[controller.git] / opendaylight / md-sal / samples / clustering-test-app / provider / src / main / java / org / opendaylight / controller / clustering / it / provider / impl / IdIntsListener.java

diff --git a/opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/IdIntsListener.java b/opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/IdIntsListener.java
index f98822b6f70f020e65d4235337770be49c270491..0ab7830760b8f980cbd90df740f6e5aba9e0ba7d 100644 (file)
--- a/opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/IdIntsListener.java
+++ b/opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/IdIntsListener.java
@@ -8,94 +8,14 @@
 
 package org.opendaylight.controller.clustering.it.provider.impl;
 
-import com.google.common.base.Preconditions;
-import com.google.common.util.concurrent.SettableFuture;
 import java.util.Collection;
-import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.ScheduledFuture;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicLong;
 import javax.annotation.Nonnull;
 import org.opendaylight.controller.md.sal.dom.api.ClusteredDOMDataTreeChangeListener;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class IdIntsListener implements ClusteredDOMDataTreeChangeListener {
-
-    private static final Logger LOG = LoggerFactory.getLogger(IdIntsListener.class);
-    private static final long SECOND_AS_NANO = 1000000000;
-
-    private NormalizedNode<?, ?> localCopy = null;
-    private AtomicLong lastNotifTimestamp = new AtomicLong(0);
-    private ScheduledExecutorService executorService;
-    private ScheduledFuture<?> scheduledFuture;
 
+public class IdIntsListener extends AbstractDataListener implements ClusteredDOMDataTreeChangeListener {
     @Override
     public void onDataTreeChanged(@Nonnull final Collection<DataTreeCandidate> changes) {
-
-        // There should only be one candidate reported
-        Preconditions.checkState(changes.size() == 1);
-
-        lastNotifTimestamp.set(System.nanoTime());
-
-        // do not log the change into debug, only use trace since it will lead to OOM on default heap settings
-        LOG.debug("Received data tree changed");
-
-        changes.forEach(change -> {
-            if (change.getRootNode().getDataAfter().isPresent()) {
-                LOG.trace("Received change, data before: {}, data after: ",
-                        change.getRootNode().getDataBefore().isPresent()
-                                ? change.getRootNode().getDataBefore().get() : "",
-                        change.getRootNode().getDataAfter().get());
-
-                if (localCopy == null || checkEqual(change.getRootNode().getDataBefore().get())) {
-                    localCopy = change.getRootNode().getDataAfter().get();
-                } else {
-                    LOG.warn("Ignoring notification.");
-                    LOG.trace("Ignored notification content: {}", change);
-                }
-            } else {
-                LOG.warn("getDataAfter() is missing from notification. change: {}", change);
-            }
-        });
-    }
-
-    public boolean hasTriggered() {
-        return localCopy != null;
-    }
-
-    public boolean checkEqual(final NormalizedNode<?, ?> expected) {
-        return localCopy.equals(expected);
-    }
-
-    public Future<Void> tryFinishProcessing() {
-        executorService = Executors.newSingleThreadScheduledExecutor();
-        final SettableFuture<Void> settableFuture = SettableFuture.create();
-
-        scheduledFuture = executorService.scheduleAtFixedRate(new CheckFinishedTask(settableFuture), 0, 1, TimeUnit.SECONDS);
-        return settableFuture;
-    }
-
-    private class CheckFinishedTask implements Runnable {
-
-        private final SettableFuture<Void> future;
-
-        public CheckFinishedTask(final SettableFuture<Void> future) {
-            this.future = future;
-        }
-
-        @Override
-        public void run() {
-            if (System.nanoTime() - lastNotifTimestamp.get() > SECOND_AS_NANO * 4) {
-                scheduledFuture.cancel(false);
-                future.set(null);
-
-                executorService.shutdown();
-            }
-        }
+        onReceivedChanges(changes);
     }
 }