2 * Copyright (c) 2014 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.mdsal.dom.spi;
10 import com.google.common.collect.ImmutableList;
11 import java.util.EnumMap;
12 import java.util.List;
14 import java.util.concurrent.atomic.AtomicLong;
15 import org.eclipse.jdt.annotation.NonNull;
16 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
17 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
18 import org.opendaylight.mdsal.dom.spi.store.DOMStore;
19 import org.opendaylight.mdsal.dom.spi.store.DOMStoreTransactionChain;
20 import org.opendaylight.mdsal.dom.spi.store.DOMStoreTreeChangePublisher;
21 import org.slf4j.Logger;
22 import org.slf4j.LoggerFactory;
24 public abstract class AbstractDOMDataBroker extends AbstractDOMForwardedTransactionFactory<DOMStore>
25 implements PingPongMergingDOMDataBroker {
26 private static final Logger LOG = LoggerFactory.getLogger(AbstractDOMDataBroker.class);
28 private final AtomicLong txNum = new AtomicLong();
29 private final AtomicLong chainNum = new AtomicLong();
30 private final @NonNull List<Extension> supportedExtensions;
32 protected AbstractDOMDataBroker(final Map<LogicalDatastoreType, DOMStore> datastores) {
35 final var builder = ImmutableList.<Extension>builder();
36 if (isSupported(datastores, DOMStoreTreeChangePublisher.class)) {
37 builder.add((DataTreeChangeExtension) (treeId, listener) -> {
38 final var dsType = treeId.datastore();
39 if (getTxFactories().get(dsType) instanceof DOMStoreTreeChangePublisher publisher) {
40 return publisher.registerTreeChangeListener(treeId.path(), listener);
42 throw new IllegalStateException("Publisher for " + dsType + " data store is not available");
45 if (isSupported(datastores, CommitCohortExtension.class)) {
46 builder.add((CommitCohortExtension) (path, cohort) -> {
47 final var dsType = path.datastore();
48 if (getTxFactories().get(dsType) instanceof CommitCohortExtension extension) {
49 return extension.registerCommitCohort(path, cohort);
51 throw new IllegalStateException("Cohort registry for " + dsType + " data store is not available");
55 supportedExtensions = builder.build();
59 public final List<Extension> supportedExtensions() {
60 return supportedExtensions;
64 public DOMTransactionChain createTransactionChain() {
67 final var delegates = new EnumMap<LogicalDatastoreType, DOMStoreTransactionChain>(LogicalDatastoreType.class);
68 for (var entry : getTxFactories().entrySet()) {
69 delegates.put(entry.getKey(), entry.getValue().createTransactionChain());
72 final long chainId = chainNum.getAndIncrement();
73 LOG.debug("Transactoin chain {} created, backing store chains {}", chainId, delegates);
74 return new DOMDataBrokerTransactionChainImpl(chainId, delegates, this);
78 protected final Object newTransactionIdentifier() {
79 return "DOM-" + txNum.getAndIncrement();
82 private static boolean isSupported(final Map<LogicalDatastoreType, DOMStore> datastores,
83 final Class<?> expDOMStoreInterface) {
84 return datastores.values().stream().allMatch(expDOMStoreInterface::isInstance);