Split transaction lifecycle
[netconf.git] / restconf / restconf-nb-rfc8040 / src / main / java / org / opendaylight / restconf / nb / rfc8040 / rests / transactions / NetconfRestconfTransaction.java
1 /*
2  * Copyright (c) 2020 PANTHEON.tech, s.r.o. and others.  All rights reserved.
3  *
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
7  */
8 package org.opendaylight.restconf.nb.rfc8040.rests.transactions;
9
10 import static java.util.Objects.requireNonNull;
11
12 import com.google.common.util.concurrent.FluentFuture;
13 import com.google.common.util.concurrent.ListenableFuture;
14 import java.util.List;
15 import java.util.Optional;
16 import org.eclipse.jdt.annotation.NonNull;
17 import org.opendaylight.mdsal.common.api.CommitInfo;
18 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
19 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
20 import org.opendaylight.netconf.dom.api.NetconfDataTreeService;
21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
22 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
23 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
24 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
25 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
26 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
27 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
28
29 final class NetconfRestconfTransaction extends RestconfTransaction {
30     private final NetconfDataTreeService netconfService;
31
32     private List<ListenableFuture<? extends DOMRpcResult>> resultsFutures;
33
34     NetconfRestconfTransaction(final NetconfDataTreeService netconfService) {
35         this.netconfService = requireNonNull(netconfService);
36         this.resultsFutures = netconfService.lock();
37     }
38
39     @Override
40     public void cancel() {
41         resultsFutures = null;
42         netconfService.discardChanges();
43         netconfService.unlock();
44     }
45
46     @Override
47     public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
48         resultsFutures.add(netconfService.delete(store, path));
49     }
50
51     @Override
52     public void remove(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
53         resultsFutures.add(netconfService.remove(store, path));
54     }
55
56     @Override
57     public void merge(final LogicalDatastoreType store, final YangInstanceIdentifier path,
58             final NormalizedNode<?, ?> data) {
59         resultsFutures.add(netconfService.merge(store, path, data, Optional.empty()));
60     }
61
62     @Override
63     public void create(final LogicalDatastoreType store, final YangInstanceIdentifier path,
64            final NormalizedNode<?, ?> data, final SchemaContext schemaContext) {
65         if (data instanceof MapNode || data instanceof LeafSetNode) {
66             final NormalizedNode<?, ?> emptySubTree = ImmutableNodes.fromInstanceId(schemaContext, path);
67             merge(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.create(emptySubTree.getIdentifier()),
68                 emptySubTree);
69
70             for (final NormalizedNode<?, ?> child : ((NormalizedNodeContainer<?, ?, ?>) data).getValue()) {
71                 final YangInstanceIdentifier childPath = path.node(child.getIdentifier());
72                 resultsFutures.add(netconfService.create(store, childPath, child, Optional.empty()));
73             }
74         } else {
75             resultsFutures.add(netconfService.create(store, path, data, Optional.empty()));
76         }
77     }
78
79     @Override
80     public void replace(final LogicalDatastoreType store, final YangInstanceIdentifier path,
81             final NormalizedNode<?, ?> data, final SchemaContext schemaContext) {
82         if (data instanceof MapNode || data instanceof LeafSetNode) {
83             final NormalizedNode<?, ?> emptySubTree = ImmutableNodes.fromInstanceId(schemaContext, path);
84             merge(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.create(emptySubTree.getIdentifier()),
85                 emptySubTree);
86
87             for (final NormalizedNode<?, ?> child : ((NormalizedNodeContainer<?, ?, ?>) data).getValue()) {
88                 final YangInstanceIdentifier childPath = path.node(child.getIdentifier());
89                 resultsFutures.add(netconfService.replace(store, childPath, child, Optional.empty()));
90             }
91         } else {
92             resultsFutures.add(netconfService.replace(store, path, data, Optional.empty()));
93         }
94     }
95
96     @Override
97     public FluentFuture<? extends @NonNull CommitInfo> commit() {
98         return FluentFuture.from(netconfService.commit(resultsFutures));
99     }
100 }