2 * Copyright (c) 2020 PANTHEON.tech, 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.restconf.nb.rfc8040.rests.transactions;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.util.concurrent.FluentFuture;
13 import com.google.common.util.concurrent.ListenableFuture;
14 import java.util.Optional;
15 import org.eclipse.jdt.annotation.NonNull;
16 import org.opendaylight.mdsal.common.api.CommitInfo;
17 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
18 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
19 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadTransaction;
20 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadWriteTransaction;
21 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
22 import org.opendaylight.restconf.nb.rfc8040.handlers.TransactionChainHandler;
23 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
24 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
27 * Implementation of RESTCONF operations using {@link DOMTransactionChain} and related concepts.
29 * @see DOMTransactionChain
30 * @see DOMDataTreeReadWriteTransaction
32 public final class MdsalRestconfStrategy extends RestconfStrategy {
33 private final DOMTransactionChain transactionChain;
34 private final TransactionChainHandler transactionChainHandler;
36 private DOMDataTreeReadWriteTransaction rwTx;
38 public MdsalRestconfStrategy(final DOMDataBroker dataBroker) {
39 this(new TransactionChainHandler(dataBroker));
42 public MdsalRestconfStrategy(final TransactionChainHandler transactionChainHandler) {
43 this.transactionChainHandler = requireNonNull(transactionChainHandler);
44 transactionChain = transactionChainHandler.get();
48 public void prepareReadWriteExecution() {
49 rwTx = transactionChain.newReadWriteTransaction();
53 public void cancel() {
57 transactionChain.close();
61 public ListenableFuture<Optional<NormalizedNode<?, ?>>> read(final LogicalDatastoreType store,
62 final YangInstanceIdentifier path) {
63 try (DOMDataTreeReadTransaction tx = transactionChain.newReadOnlyTransaction()) {
64 return tx.read(store, path);
69 public FluentFuture<Boolean> exists(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
70 return rwTx.exists(store, path);
74 public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
75 rwTx.delete(store, path);
79 public void merge(final LogicalDatastoreType store, final YangInstanceIdentifier path,
80 final NormalizedNode<?, ?> data) {
81 rwTx.merge(store, path, data);
85 public void create(final LogicalDatastoreType store, final YangInstanceIdentifier path,
86 final NormalizedNode<?, ?> data) {
87 rwTx.put(store, path, data);
91 public void replace(final LogicalDatastoreType store, final YangInstanceIdentifier path,
92 final NormalizedNode<?, ?> data) {
93 create(store, path, data);
97 public FluentFuture<? extends @NonNull CommitInfo> commit() {
102 public DOMTransactionChain getTransactionChain() {
103 return transactionChain;
107 public TransactionChainHandler getTransactionChainHandler() {
108 return transactionChainHandler;