+/*
+ * Copyright (c) 2016 Cisco Systems and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.dsbenchmark.listener;
+
+import java.util.Collection;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
+import org.opendaylight.controller.md.sal.binding.api.DataObjectModification.ModificationType;
+import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
+import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dsbenchmark.rev150105.TestExec;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class DsbenchmarkListener implements DataTreeChangeListener<TestExec> {
+ private static final Logger LOG = LoggerFactory.getLogger(DsbenchmarkListener.class);
+ private AtomicInteger numEvents = new AtomicInteger(0);
+
+ @Override
+ public void onDataTreeChanged(
+ Collection<DataTreeModification<TestExec>> changes) {
+ // Since we're registering the same DsbenchmarkListener object for both
+ // OPERATIONAL and CONFIG, the onDataTreeChanged() method can be called
+ // from different threads, and we need to use atomic counters.
+
+ final int eventNum = numEvents.incrementAndGet();
+ if(LOG.isDebugEnabled()){
+ logDataTreeChangeEvent(eventNum, changes);
+ }
+ }
+
+ private static synchronized void logDataTreeChangeEvent(int eventNum,
+ Collection<DataTreeModification<TestExec>> changes) {
+ LOG.debug("DsbenchmarkListener-onDataTreeChanged: Event {}", eventNum);
+
+ for(DataTreeModification<TestExec> change : changes) {
+ final DataObjectModification<TestExec> rootNode = change.getRootNode();
+ final ModificationType modType = rootNode.getModificationType();
+ final PathArgument changeId = rootNode.getIdentifier();
+ final Collection<DataObjectModification<? extends DataObject>> modifications = rootNode.getModifiedChildren();
+
+ LOG.debug(" changeId {}, modType {}, mods: {}", changeId, modType, modifications.size());
+
+ for (DataObjectModification<? extends DataObject> mod : modifications) {
+ LOG.debug(" mod-getDataAfter: {}", mod.getDataAfter());
+ }
+ }
+ }
+
+ public int getNumEvents() {
+ return numEvents.get();
+ }
+
+}