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/*
* Copyright (c) 2016 Intel 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.vppnsh.impl.init;
import com.google.inject.Inject;
import com.google.inject.name.Named;
import io.fd.honeycomb.data.init.AbstractDataTreeConverter;
import java.util.stream.Collectors;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNsh;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.VppNshState;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshEntries;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshEntriesBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshMaps;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.NshMapsBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntry;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.entries.NshEntryBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMap;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.nsh.rev160624.vpp.nsh.nsh.maps.NshMapBuilder;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This is an initializer for VppNsh plugin. Its main goal is to revers-engineer configuration data (config "true")
* for Nsh model from operational data. In this case, we are trying to recreate Nsh container from NshsState
* container. Thanks to symmetrical nature of the model, it's pretty straightforward.
*
* This is very useful when the lower layer already contains some data that should be revers-engineer to config data
* in honeycomb in order to get HC and lower layer to sync... It makes life of upper layers much easier
*
* However it's not always possible to perform this task so the initializers are optional for plugins
*/
public class VppNshInitializer extends AbstractDataTreeConverter<VppNshState, VppNsh> {
private static final Logger LOG = LoggerFactory.getLogger(VppNshInitializer.class);
private static final InstanceIdentifier<VppNshState> OPER_ID = InstanceIdentifier.create(VppNshState.class);
private static final InstanceIdentifier<VppNsh> CFG_ID = InstanceIdentifier.create(VppNsh.class);
@Inject
public VppNshInitializer(@Named("honeycomb-initializer") final DataBroker bindingDataBroker) {
super(bindingDataBroker, OPER_ID, CFG_ID);
}
@Override
protected VppNsh convert(final VppNshState operationalData) {
// Just convert operational data into config data
// The operational data are queried from lower layer using readerCustomizers from this plugin
LOG.info("Initializing VppNsh config data from: {}", operationalData);
VppNshBuilder vppNshBuilder = new VppNshBuilder();
NshEntriesBuilder nshEntriesBuilder = new NshEntriesBuilder()
.setNshEntry(operationalData.getNshEntries().getNshEntry().stream()
.map(oper -> new NshEntryBuilder(oper).setName(oper.getName()).build())
.collect(Collectors.toList()));
vppNshBuilder.setNshEntries(nshEntriesBuilder.build());
NshMapsBuilder nshMapsBuilder = new NshMapsBuilder()
.setNshMap(operationalData.getNshMaps().getNshMap().stream()
.map(oper -> new NshMapBuilder(oper).setName(oper.getName()).build())
.collect(Collectors.toList()));
vppNshBuilder.setNshMaps(nshMapsBuilder.build());
return vppNshBuilder.build();
}
}
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