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
123
124
125
126
127
|
/*
* 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.v3po.vpp.data.init;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.annotations.Beta;
import com.google.common.base.Optional;
import io.fd.honeycomb.v3po.data.ModifiableDataTree;
import io.fd.honeycomb.v3po.translate.Context;
import io.fd.honeycomb.v3po.translate.read.ReadContext;
import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
import io.fd.honeycomb.v3po.translate.read.ReaderRegistry;
import java.util.Map;
import javax.annotation.Nonnull;
import org.opendaylight.yangtools.binding.data.codec.api.BindingNormalizedNodeSerializer;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
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.DataTreeModification;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Base class for initializers which perform conversion between operational and config YANG model.
*
* @param <C> Config data object
* @param <O> Operational data object
*/
@Beta
public abstract class AbstractDataTreeConverter<O extends DataObject, C extends DataObject>
implements DataTreeInitializer {
private static final Logger LOG = LoggerFactory.getLogger(AbstractDataTreeConverter.class);
private final ReaderRegistry readerRegistry;
private final ModifiableDataTree configDataTree;
private final BindingNormalizedNodeSerializer serializer;
private final InstanceIdentifier<O> idOper;
private final InstanceIdentifier<C> idConfig;
public AbstractDataTreeConverter(@Nonnull final ReaderRegistry readerRegistry,
@Nonnull final ModifiableDataTree configDataTree,
@Nonnull final BindingNormalizedNodeSerializer serializer,
@Nonnull final InstanceIdentifier<O> idOper,
@Nonnull final InstanceIdentifier<C> idConfig) {
this.readerRegistry = checkNotNull(readerRegistry, "readerRegistry should not be null");
this.configDataTree = checkNotNull(configDataTree, "configDataTree should not be null");
this.serializer = checkNotNull(serializer, "serializer should not be null");
this.idOper = checkNotNull(idOper, "idOper should not be null");
this.idConfig = checkNotNull(idConfig, "idConfig should not be null");
}
@Override
public final void initialize() throws InitializeException {
LOG.debug("AbstractDataTreeConverter.initialize()");
final Optional<? extends DataObject> data;
try (ReadContext ctx = new ReadContextImpl()) {
data = readerRegistry.read(idOper, ctx);
} catch (ReadFailedException e) {
LOG.warn("Failed to read operational state", e);
return;
}
LOG.debug("Config initialization data={}", data);
if (data.isPresent()) {
// conversion
final O operationalData = idOper.getTargetType().cast(data.get());
final C configData = convert(operationalData);
final Map.Entry<YangInstanceIdentifier, NormalizedNode<?, ?>> normalizedData =
serializer.toNormalizedNode(idConfig, configData);
final DataTreeModification modification = configDataTree.takeSnapshot().newModification();
final YangInstanceIdentifier biPath = normalizedData.getKey();
final NormalizedNode<?, ?> biData = normalizedData.getValue();
LOG.debug("Config initialization biPath={}, biData={}", biPath, biData);
modification.write(biPath, biData);
modification.ready();
LOG.debug("Config writing modification ...");
try {
configDataTree.initialize(modification);
LOG.debug("Config writing modification written successfully.");
} catch (DataValidationFailedException e) {
throw new InitializeException("Failed to read operational state", e);
}
} else {
LOG.warn("Data is not present");
}
}
protected abstract C convert(final O operationalData);
// TODO move to utility module
private static final class ReadContextImpl implements ReadContext {
public final Context ctx = new Context();
@Nonnull
@Override
public Context getContext() {
return ctx;
}
@Override
public void close() {
// Make sure to clear the storage in case some customizer stored it to prevent memory leaks
ctx.close();
}
}
}
|
