1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* Copyright (c) 2016 Cisco and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.fd.honeycomb.data.impl;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.util.concurrent.Futures.immediateCheckedFuture;
import com.google.common.base.Optional;
import com.google.common.util.concurrent.CheckedFuture;
import io.fd.honeycomb.data.ModifiableDataManager;
import io.fd.honeycomb.data.DataModification;
import io.fd.honeycomb.translate.TranslationException;
import javax.annotation.Nonnull;
import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* DataTree backed implementation for modifiable data manager.
*/
public class ModifiableDataTreeManager implements ModifiableDataManager {
private static final Logger LOG = LoggerFactory.getLogger(ModifiableDataTreeManager.class);
private final DataTree dataTree;
public ModifiableDataTreeManager(@Nonnull final DataTree dataTree) {
this.dataTree = checkNotNull(dataTree, "dataTree should not be null");
}
@Override
public DataModification newModification() {
return new ConfigSnapshot();
}
@Override
public final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(@Nonnull final YangInstanceIdentifier path) {
return newModification().read(path);
}
protected class ConfigSnapshot implements DataModification {
private final DataTreeModification modification;
private boolean validated = false;
ConfigSnapshot() {
this(dataTree.takeSnapshot().newModification());
}
protected ConfigSnapshot(final DataTreeModification modification) {
this.modification = modification;
}
@Override
public CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
@Nonnull final YangInstanceIdentifier path) {
final Optional<NormalizedNode<?, ?>> node = modification.readNode(path);
if (LOG.isTraceEnabled() && node.isPresent()) {
LOG.trace("ConfigSnapshot.read: {}", node.get());
}
return immediateCheckedFuture(node);
}
@Override
public final void delete(final YangInstanceIdentifier path) {
modification.delete(path);
}
@Override
public final void merge(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
modification.merge(path, data);
}
@Override
public final void write(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
modification.write(path, data);
}
@Override
public final void commit() throws DataValidationFailedException, TranslationException {
if(!validated) {
validate();
}
final DataTreeCandidate candidate = dataTree.prepare(modification);
processCandidate(candidate);
dataTree.commit(candidate);
}
protected void processCandidate(final DataTreeCandidate candidate) throws TranslationException {
// NOOP
}
@Override
public final void validate() throws DataValidationFailedException {
modification.ready();
dataTree.validate(modification);
validated = true;
}
}
}
|
