2 * Copyright (c) 2016 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.md.sal.dom.broker.impl.legacy.sharded.adapter;
11 import static com.google.common.base.Preconditions.checkNotNull;
13 import java.util.Collections;
15 import java.util.concurrent.atomic.AtomicLong;
16 import javax.annotation.Nonnull;
17 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
18 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
19 import org.opendaylight.controller.md.sal.dom.api.DOMDataBrokerExtension;
20 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
21 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
22 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
23 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
24 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
25 import org.opendaylight.mdsal.dom.broker.ShardedDOMDataBrokerAdapter;
28 * DOMDataBroker implementation that forwards calls to
29 * {@link org.opendaylight.mdsal.dom.broker.ShardedDOMDataBrokerAdapter},
30 * which in turn translates calls to shard aware implementation of
31 * {@link org.opendaylight.mdsal.dom.api.DOMDataTreeService}
34 * The incompatibility between first and latter APIs, puts restriction on {@link DOMDataReadWriteTransaction}
35 * and {@link DOMDataReadOnlyTransaction} provided by this data broker. See
36 * {@link ShardedDOMDataBrokerDelegatingReadWriteTransaction}
37 * and {@link ShardedDOMDataBrokerDelegatingReadTransaction} respectively.
39 // FIXME try to refactor some of the implementation to abstract class for better reusability
40 public class LegacyShardedDOMDataBrokerAdapter implements DOMDataBroker {
42 private final org.opendaylight.mdsal.dom.api.DOMDataBroker delegateDataBroker;
43 private final DOMSchemaService schemaService;
44 private final AtomicLong txNum = new AtomicLong();
45 private final AtomicLong chainNum = new AtomicLong();
47 public LegacyShardedDOMDataBrokerAdapter(final ShardedDOMDataBrokerAdapter delegateDataBroker,
48 final DOMSchemaService schemaService) {
49 this.delegateDataBroker = checkNotNull(delegateDataBroker);
50 this.schemaService = checkNotNull(schemaService);
54 public DOMDataReadOnlyTransaction newReadOnlyTransaction() {
55 return new ShardedDOMDataBrokerDelegatingReadTransaction(newTransactionIdentifier(),
56 delegateDataBroker.newReadOnlyTransaction());
60 public DOMDataReadWriteTransaction newReadWriteTransaction() {
61 return new ShardedDOMDataBrokerDelegatingReadWriteTransaction(newTransactionIdentifier(),
62 schemaService.getGlobalContext(),
63 newReadOnlyTransaction(),
64 newWriteOnlyTransaction());
68 public DOMDataWriteTransaction newWriteOnlyTransaction() {
69 return new ShardedDOMDataBrokerDelegatingWriteTransaction(newTransactionIdentifier(),
70 delegateDataBroker.newWriteOnlyTransaction());
74 public DOMTransactionChain createTransactionChain(final TransactionChainListener listener) {
75 return new ShardedDOMDataBrokerDelegatingTransactionChain(chainNum.getAndIncrement(),
76 schemaService.getGlobalContext(), delegateDataBroker,
82 public Map<Class<? extends DOMDataBrokerExtension>, DOMDataBrokerExtension> getSupportedExtensions() {
83 return Collections.emptyMap();
86 private Object newTransactionIdentifier() {
87 return "DOM-" + txNum.getAndIncrement();