/*
* Copyright (c) 2014 Cisco Systems, Inc. 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.groupbasedpolicy.renderer.ofoverlay.node;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.Map.Entry;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class FlowCapableNodeListener implements DataChangeListener, AutoCloseable {
private static final Logger LOG = LoggerFactory.getLogger(FlowCapableNodeListener.class);
private final static InstanceIdentifier<FlowCapableNode> fcNodeIid = InstanceIdentifier.builder(Nodes.class)
.child(Node.class)
.augmentation(FlowCapableNode.class)
.build();
private final SwitchManager switchManager;
private final ListenerRegistration<DataChangeListener> listenerRegistration;
public FlowCapableNodeListener(DataBroker dataProvider, SwitchManager switchManager) {
this.switchManager = checkNotNull(switchManager);
listenerRegistration = checkNotNull(dataProvider).registerDataChangeListener(LogicalDatastoreType.OPERATIONAL,
fcNodeIid, this, DataChangeScope.BASE);
}
@Override
public void onDataChanged(AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> change) {
for (Entry<InstanceIdentifier<?>, DataObject> fcNodeEntry : change.getCreatedData().entrySet()) {
if (FlowCapableNode.class.equals(fcNodeEntry.getKey().getTargetType())) {
NodeId nodeId = fcNodeEntry.getKey().firstKeyOf(Node.class, NodeKey.class).getId();
FlowCapableNode fcNode = (FlowCapableNode) fcNodeEntry.getValue();
LOG.trace("FlowCapableNode created. NodeId: {} FlowCapableNode: {}", nodeId.getValue(), fcNode);
switchManager.updateSwitch(nodeId, fcNode);
}
}
for (Entry<InstanceIdentifier<?>, DataObject> fcNodeEntry : change.getUpdatedData().entrySet()) {
if (FlowCapableNode.class.equals(fcNodeEntry.getKey().getTargetType())) {
NodeId nodeId = fcNodeEntry.getKey().firstKeyOf(Node.class, NodeKey.class).getId();
FlowCapableNode fcNode = (FlowCapableNode) fcNodeEntry.getValue();
LOG.trace("FlowCapableNode updated. NodeId: {} FlowCapableNode: {}", nodeId.getValue(), fcNode);
switchManager.updateSwitch(nodeId, fcNode);
}
}
for (InstanceIdentifier<?> removedFcNodeIid : change.getRemovedPaths()) {
if (FlowCapableNode.class.equals(removedFcNodeIid.getTargetType())) {
NodeId nodeId = removedFcNodeIid.firstKeyOf(Node.class, NodeKey.class).getId();
LOG.trace("FlowCapableNode removed. NodeId: {}", nodeId.getValue());
switchManager.updateSwitch(nodeId, null);
}
}
}
@Override
public void close() throws Exception {
if (listenerRegistration != null) {
listenerRegistration.close();
}
}
}