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
9 package org.opendaylight.controller.cluster.databroker;
11 import static com.google.common.base.Preconditions.checkState;
13 import com.google.common.collect.ImmutableMap;
14 import java.util.Collections;
15 import java.util.EnumMap;
17 import java.util.concurrent.atomic.AtomicLong;
18 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
19 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
20 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
21 import org.opendaylight.controller.md.sal.dom.api.DOMDataBrokerExtension;
22 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
23 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
24 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeService;
25 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeIdentifier;
26 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
27 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
28 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
29 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTreeChangePublisher;
30 import org.opendaylight.yangtools.concepts.ListenerRegistration;
31 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
35 abstract class AbstractDOMBroker extends AbstractDOMTransactionFactory<DOMStore>
36 implements DOMDataBroker {
38 private static final Logger LOG = LoggerFactory.getLogger(AbstractDOMBroker.class);
40 private final AtomicLong txNum = new AtomicLong();
41 private final AtomicLong chainNum = new AtomicLong();
42 private final Map<Class<? extends DOMDataBrokerExtension>, DOMDataBrokerExtension> extensions;
43 private volatile AutoCloseable closeable;
45 protected AbstractDOMBroker(final Map<LogicalDatastoreType, DOMStore> datastores) {
48 boolean treeChange = true;
49 for (DOMStore ds : datastores.values()) {
50 if (!(ds instanceof DOMStoreTreeChangePublisher)) {
57 extensions = ImmutableMap.of(DOMDataTreeChangeService.class, new DOMDataTreeChangeService() {
59 public <L extends DOMDataTreeChangeListener> ListenerRegistration<L> registerDataTreeChangeListener(
60 final DOMDataTreeIdentifier treeId, final L listener) {
61 DOMStore publisher = getTxFactories().get(treeId.getDatastoreType());
62 checkState(publisher != null, "Requested logical data store is not available.");
64 return ((DOMStoreTreeChangePublisher) publisher).registerTreeChangeListener(
65 treeId.getRootIdentifier(), listener);
69 extensions = Collections.emptyMap();
73 public void setCloseable(final AutoCloseable closeable) {
74 this.closeable = closeable;
78 @SuppressWarnings("checkstyle:IllegalCatch")
82 if (closeable != null) {
85 } catch (Exception e) {
86 LOG.debug("Error closing instance", e);
92 protected Object newTransactionIdentifier() {
93 return "DOM-" + txNum.getAndIncrement();
97 public ListenerRegistration<DOMDataChangeListener> registerDataChangeListener(final LogicalDatastoreType store,
98 final YangInstanceIdentifier path, final DOMDataChangeListener listener,
99 final DataChangeScope triggeringScope) {
100 DOMStore potentialStore = getTxFactories().get(store);
101 checkState(potentialStore != null, "Requested logical data store is not available.");
102 return potentialStore.registerChangeListener(path, listener, triggeringScope);
106 public Map<Class<? extends DOMDataBrokerExtension>, DOMDataBrokerExtension> getSupportedExtensions() {
111 public DOMTransactionChain createTransactionChain(final TransactionChainListener listener) {
114 final Map<LogicalDatastoreType, DOMStoreTransactionChain> backingChains =
115 new EnumMap<>(LogicalDatastoreType.class);
116 for (Map.Entry<LogicalDatastoreType, DOMStore> entry : getTxFactories().entrySet()) {
117 backingChains.put(entry.getKey(), entry.getValue().createTransactionChain());
120 final long chainId = chainNum.getAndIncrement();
121 LOG.debug("Transaction chain {} created with listener {}, backing store chains {}", chainId, listener,
123 return new DOMBrokerTransactionChain(chainId, backingChains, this, listener);