2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.openflowplugin.applications.topology.manager;
10 import java.util.concurrent.Callable;
11 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
12 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
13 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
14 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
16 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
24 import org.opendaylight.yangtools.concepts.ListenerRegistration;
25 import org.opendaylight.yangtools.yang.binding.DataObject;
26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
30 public abstract class DataTreeChangeListenerImpl<T extends DataObject> implements DataTreeChangeListener<T>, AutoCloseable {
32 private static final Logger LOG = LoggerFactory.getLogger(DataTreeChangeListenerImpl.class);
33 private static final long STARTUP_LOOP_TICK = 500L;
34 private static final int STARTUP_LOOP_MAX_RETRIES = 8;
35 protected final ListenerRegistration<DataTreeChangeListener> listenerRegistration;
36 protected OperationProcessor operationProcessor;
39 * instance identifier to Node in network topology model (yangtools)
41 protected static final InstanceIdentifier<Topology> II_TO_TOPOLOGY =
43 .create(NetworkTopology.class)
44 .child(Topology.class, new TopologyKey(new TopologyId(FlowCapableTopologyProvider.TOPOLOGY_ID)));
46 public DataTreeChangeListenerImpl(final OperationProcessor operationProcessor,
47 final DataBroker dataBroker,
48 final InstanceIdentifier<T> ii) {
49 final DataTreeIdentifier<T> identifier = new DataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, ii);
50 final SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(STARTUP_LOOP_TICK, STARTUP_LOOP_MAX_RETRIES);
52 listenerRegistration = looper.loopUntilNoException(new Callable<ListenerRegistration<DataTreeChangeListener>>() {
54 public ListenerRegistration<DataTreeChangeListener> call() throws Exception {
55 return dataBroker.registerDataTreeChangeListener(identifier, DataTreeChangeListenerImpl.this);
58 } catch (Exception e) {
59 LOG.error("Data listener registration failed!");
60 throw new IllegalStateException("TopologyManager startup fail! TM bundle needs restart.", e);
62 this.operationProcessor = operationProcessor;
66 public void close() throws Exception {
67 listenerRegistration.close();
70 protected <T extends DataObject> void sendToTransactionChain(final T node, final InstanceIdentifier<T> iiToTopologyNode) {
71 operationProcessor.enqueueOperation(new TopologyOperation() {
73 public void applyOperation(ReadWriteTransaction transaction) {
74 transaction.merge(LogicalDatastoreType.OPERATIONAL, iiToTopologyNode, node, true);
79 protected InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node> provideIIToTopologyNode(
80 final NodeId nodeIdInTopology) {
81 org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey nodeKeyInTopology = new org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey(
85 .child(org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node.class,
86 nodeKeyInTopology).build();
89 protected NodeId provideTopologyNodeId(InstanceIdentifier<T> iiToNodeInInventory) {
90 final NodeKey inventoryNodeKey = iiToNodeInInventory.firstKeyOf(Node.class, NodeKey.class);
91 if (inventoryNodeKey != null) {
92 return new NodeId(inventoryNodeKey.getId().getValue());