2 * Copyright (c) 2017 Pantheon Technologies s.r.o. 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.protocol.data.change.counter;
10 import static java.util.Objects.requireNonNull;
12 import java.util.Collection;
13 import java.util.HashMap;
15 import javax.annotation.PreDestroy;
16 import javax.inject.Inject;
17 import javax.inject.Singleton;
18 import org.checkerframework.checker.lock.qual.GuardedBy;
19 import org.eclipse.jdt.annotation.NonNull;
20 import org.opendaylight.mdsal.binding.api.DataBroker;
21 import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
22 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
23 import org.opendaylight.mdsal.binding.api.DataTreeModification;
24 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgpcep.data.change.counter.config.rev170424.DataChangeCounterConfig;
26 import org.opendaylight.yangtools.concepts.ListenerRegistration;
27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
28 import org.osgi.service.component.annotations.Activate;
29 import org.osgi.service.component.annotations.Component;
30 import org.osgi.service.component.annotations.Deactivate;
31 import org.osgi.service.component.annotations.Reference;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
36 @Component(service = { })
37 public final class TopologyDataChangeCounterDeployer implements DataTreeChangeListener<DataChangeCounterConfig>,
39 private static final Logger LOG = LoggerFactory.getLogger(TopologyDataChangeCounterDeployer.class);
40 private static final InstanceIdentifier<DataChangeCounterConfig> DATA_CHANGE_COUNTER_IID =
41 InstanceIdentifier.builder(DataChangeCounterConfig.class).build();
43 private final @NonNull DataBroker dataBroker;
45 private final Map<String, TopologyDataChangeCounter> counters = new HashMap<>();
47 private ListenerRegistration<TopologyDataChangeCounterDeployer> registration;
51 public TopologyDataChangeCounterDeployer(@Reference final DataBroker dataBroker) {
52 this.dataBroker = requireNonNull(dataBroker);
53 registration = dataBroker.registerDataTreeChangeListener(
54 DataTreeIdentifier.create(LogicalDatastoreType.CONFIGURATION, DATA_CHANGE_COUNTER_IID), this);
55 LOG.info("Data change counter Deployer started");
61 public synchronized void close() {
62 if (registration != null) {
66 counters.values().forEach(TopologyDataChangeCounter::close);
68 LOG.info("Data change counter Deployer stopped");
72 public synchronized void onDataTreeChanged(
73 final Collection<DataTreeModification<DataChangeCounterConfig>> changes) {
74 for (var change : changes) {
75 final var rootNode = change.getRootNode();
76 switch (rootNode.getModificationType()) {
78 deleteCounterChange(rootNode.getDataBefore().getCounterId());
80 case SUBTREE_MODIFIED:
82 final var counterConfig = rootNode.getDataAfter();
83 handleCounterChange(counterConfig.getCounterId(), counterConfig.getTopologyName());
86 LOG.error("Unhandled modification Type: {}", rootNode.getModificationType());
92 private synchronized void deleteCounterChange(final String counterId) {
93 final var oldCounter = counters.remove(counterId);
94 if (oldCounter != null) {
95 LOG.info("Data change counter Deployer deleted: {}", counterId);
100 private synchronized void handleCounterChange(final String counterId, final String topologyName) {
101 deleteCounterChange(counterId);
102 LOG.info("Data change counter Deployer created: {} / {}", counterId, topologyName);
103 counters.put(counterId, new TopologyDataChangeCounter(dataBroker, counterId, topologyName));