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
|
/*
* 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.
*/
#macro( ccase $str )
#foreach( $word in $rootArtifactId.split('-') )$word.substring(0,1).toUpperCase()$word.substring(1)#end
#end
#set( $classNamePrefix = "#ccase( $rootArtifactId )" )
#macro( dotted $str )
#foreach( $word in $rootArtifactId.split('-') )$word.#end
#end
#set( $packageName = "#dotted( $rootArtifactId )" )
package ${package}.read;
import ${package}.CrudService;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.honeycomb.translate.spi.read.Initialized;
import io.fd.honeycomb.translate.spi.read.InitializingListReaderCustomizer;
import java.util.List;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.${packageName}rev160918.${classNamePrefix}StateBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.${packageName}rev160918.${packageName}params.Element;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.${packageName}rev160918.${packageName}params.ElementBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.${packageName}rev160918.${packageName}params.ElementKey;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* Reader for {@link Element} list node from our YANG model.
*/
public final class ElementStateCustomizer implements
InitializingListReaderCustomizer<Element, ElementKey, ElementBuilder> {
private final CrudService<Element> crudService;
public ElementStateCustomizer(final CrudService<Element> crudService) {
this.crudService = crudService;
}
@Nonnull
@Override
public List<ElementKey> getAllIds(@Nonnull final InstanceIdentifier<Element> id, @Nonnull final ReadContext context)
throws ReadFailedException {
// perform read operation and extract keys from data
return crudService.readAll()
.stream()
.map(a -> new ElementKey(a.getId()))
.collect(Collectors.toList());
}
@Override
public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<Element> readData) {
// merge children data to parent builder
// used by infrastructure to merge data loaded in separated customizers
((${classNamePrefix}StateBuilder) builder).setElement(readData);
}
@Nonnull
@Override
public ElementBuilder getBuilder(@Nonnull final InstanceIdentifier<Element> id) {
// return new builder for this data node
return new ElementBuilder();
}
@Override
public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Element> id,
@Nonnull final ElementBuilder builder,
@Nonnull final ReadContext ctx) throws ReadFailedException {
// this stage is used after reading all ids by getAllIds,to read specific details about data
// perform read of details of data specified by key of Element in id
final Element data = crudService.readSpecific(id);
// and sets it to builder
builder.setId(data.getId());
builder.setKey(data.getKey());
builder.setDescription(data.getDescription());
}
/**
*
* Initialize configuration data based on operational data.
* <p/>
* Very useful when a plugin is initiated but the underlying layer already contains some operation state.
* Deriving the configuration from existing operational state enables reconciliation in case when
* Honeycomb's persistence is not available to do the work for us.
*/
@Nonnull
@Override
public Initialized<? extends DataObject> init(@Nonnull final InstanceIdentifier<Element> id,
@Nonnull final Element readValue,
@Nonnull final ReadContext ctx) {
return Initialized.create(id, readValue);
}
}
|