blob: 5e34eea74da4ab01f26cba9980bffd9c6b50f5d4 (
plain)
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
|
/*
* 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.samples.interfaces.mapping.oper;
import com.google.inject.Inject;
import io.fd.honeycomb.samples.interfaces.mapping.LowerLayerAccess;
import io.fd.honeycomb.translate.impl.read.GenericListReader;
import io.fd.honeycomb.translate.impl.read.GenericReader;
import io.fd.honeycomb.translate.read.ReaderFactory;
import io.fd.honeycomb.translate.read.registry.ModifiableReaderRegistryBuilder;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.io.fd.honeycomb.samples.interfaces.rev160810.InterfacesState;
import org.opendaylight.yang.gen.v1.io.fd.honeycomb.samples.interfaces.rev160810.InterfacesStateBuilder;
import org.opendaylight.yang.gen.v1.io.fd.honeycomb.samples.interfaces.rev160810._interface.state.Counters;
import org.opendaylight.yang.gen.v1.io.fd.honeycomb.samples.interfaces.rev160810.interfaces.state.Interface;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
public class InterfacesReaderFactory implements ReaderFactory {
@Nonnull
private final LowerLayerAccess access;
@Inject
public InterfacesReaderFactory(@Nonnull final LowerLayerAccess access) {
this.access = access;
}
@Override
public void init(@Nonnull final ModifiableReaderRegistryBuilder registry) {
// ReaderFactory is intended for registering Readers into HC framework
// Readers provide ONLY operational (config "false") data straight from underlying device/layer
// they are triggered when RESTCONF GET on operational is invoked or when NETCONF get operation is executed
// Our model root for operational data is InterfacesState
final InstanceIdentifier<InterfacesState> root = InstanceIdentifier.create(InterfacesState.class);
// Since InterfacesState has no direct data children (leaves) only a structural reader is registered
// This reader just fills in the composite hierarchy of readers
// Honeycomb can't automatically instantiate structural readers and plugins have to help it by invoking as:
registry.addStructuralReader(root, InterfacesStateBuilder.class);
// Next child node is Interface (list)
final InstanceIdentifier<Interface> ifcListId = root.child(Interface.class);
registry.add(new GenericListReader<>(ifcListId, new InterfaceReaderCustomizer(access)));
// Next child is a container Counters
final InstanceIdentifier<Counters> countersId = ifcListId.child(Counters.class);
// By adding the reader with addAfter, we can ensure ordering of execution among the readers
// Useful in cases when a certain read has to be invoked before/after another
// In this case, we are ensuring that Counters are read after Interface is read
// "add" could be used instead, leaving the ordering to "nature"
// Same applies for writers
registry.addAfter(new GenericReader<>(countersId, new CountersReaderCustomizer(access)), ifcListId);
}
}
|