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/*
* 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.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 org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.yang.gen.v1.io.fd.honeycomb.samples.interfaces.rev160810.Interfaces;
import org.opendaylight.yang.gen.v1.io.fd.honeycomb.samples.interfaces.rev160810.InterfacesBuilder;
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.interfaces.InterfaceBuilder;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This is an initializer for interfaces plugin. Its main goal is to revers-engineer configuration data (config "true")
* for interfaces model from operational data. In this case, we are trying to recreate Interfaces container from InterfacesState
* 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 InterfacesInitializer extends AbstractDataTreeConverter<InterfacesState, Interfaces> {
private static final Logger LOG = LoggerFactory.getLogger(InterfacesInitializer.class);
@Inject
public InterfacesInitializer(@Named("honeycomb-initializer") final DataBroker bindingDataBroker) {
super(bindingDataBroker,
InstanceIdentifier.create(InterfacesState.class), InstanceIdentifier.create(Interfaces.class));
}
@Override
protected Interfaces convert(final InterfacesState operationalData) {
// Just convert operational data into config data
// The operational data are queried from lower layer using readerCustomizers from this plugin
LOG.info("Initializing interfaces config data from: {}", operationalData);
return new InterfacesBuilder()
.setInterface(operationalData.getInterface().stream()
.map(oper -> new InterfaceBuilder()
.setMtu(oper.getMtu())
.setInterfaceId(oper.getInterfaceId())
.build())
.collect(Collectors.toList()))
.build();
}
}
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