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/*
* Copyright (c) 2017 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.hc2vpp.lisp.gpe.translate.ctx;
import static java.lang.String.format;
import io.fd.honeycomb.translate.MappingContext;
import java.util.Collection;
import java.util.Optional;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.GpeEntryIdentificationCtxAugmentation;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.GpeEntryIdentificationContexts;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.gpe.entry.identification.contexts.GpeEntryIdentification;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.gpe.entry.identification.contexts.GpeEntryIdentificationKey;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.gpe.entry.identification.contexts.gpe.entry.identification.Mappings;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.gpe.entry.identification.contexts.gpe.entry.identification.mappings.Mapping;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.gpe.entry.identification.contexts.gpe.entry.identification.mappings.MappingBuilder;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.gpe.entry.identification.contexts.gpe.entry.identification.mappings.MappingKey;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.gpe.entry.identification.contexts.gpe.entry.identification.mappings.mapping.GpeEntryIdentificator;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.gpe.entry.identification.context.rev170517.gpe.entry.identification.context.attributes.gpe.entry.identification.contexts.gpe.entry.identification.mappings.mapping.GpeEntryIdentificatorBuilder;
import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.Contexts;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class GpeEntryMappingContextImpl implements GpeEntryMappingContext {
private static final Logger LOG = LoggerFactory.getLogger(GpeEntryMappingContextImpl.class);
private final KeyedInstanceIdentifier<GpeEntryIdentification, GpeEntryIdentificationKey>
namingContextIid;
/**
* Create new naming context
*
* @param instanceName name of this context instance. Will be used as list item identifier within context data tree
*/
public GpeEntryMappingContextImpl(@Nonnull final String instanceName) {
namingContextIid = InstanceIdentifier.create(Contexts.class)
.augmentation(GpeEntryIdentificationCtxAugmentation.class)
.child(GpeEntryIdentificationContexts.class)
.child(GpeEntryIdentification.class, new GpeEntryIdentificationKey(instanceName));
}
@Override
public void addMapping(@Nonnull final String id,
@Nonnull final GpeEntryIdentifier identifier,
@Nonnull final MappingContext mappingContext) {
LOG.debug("Adding mapping for gpe-entry[id={},entry-identifier={}]", id, identifier);
mappingContext.put(getMappingId(id), getMapping(id, identifier));
LOG.debug("Mapping for gp-entry[id={}] successfully added", id);
}
@Override
public void removeMapping(@Nonnull final String id,
@Nonnull final MappingContext mappingContext) {
LOG.debug("Removing mapping for gpe-entry[id={}]", id);
mappingContext.delete(getMappingId(id));
LOG.debug("Mapping for gpe-entry[id={}] removed", id);
}
@Override
public GpeEntryIdentificator getIdentificatorById(@Nonnull final String id,
@Nonnull final MappingContext mappingContext) {
final com.google.common.base.Optional<Mappings> read =
mappingContext.read(namingContextIid.child(Mappings.class));
if (read.isPresent()) {
return Optional.of(read.get())
.map(Mappings::getMapping)
.map(Collection::stream)
.map(mappingStream -> mappingStream
.filter(mapping -> mapping.getId().equals(id))
.map(Mapping::getGpeEntryIdentificator)
.findAny().orElse(null))
.orElseThrow(() -> new IllegalStateException(format("No mapping for id %s", id)));
}
throw new IllegalStateException(format("No mapping for id %s", id));
}
@Override
public String getIdByEntryIdentifier(@Nonnull final GpeEntryIdentifier identifier,
@Nonnull final MappingContext mappingContext) {
final com.google.common.base.Optional<Mappings> read =
mappingContext.read(namingContextIid.child(Mappings.class));
if (read.isPresent()) {
return Optional.of(read.get())
.map(Mappings::getMapping)
.map(Collection::stream)
.map(mappingStream -> mappingStream
.filter(mapping -> identifier.isSame(mapping.getGpeEntryIdentificator()))
.map(Mapping::getId)
.findAny().orElse(null))
.orElse(addArtificialMapping(identifier, mappingContext));
}
return addArtificialMapping(identifier, mappingContext);
}
private String addArtificialMapping(@Nonnull final GpeEntryIdentifier identifier,
@Nonnull final MappingContext mappingContext) {
final String artificialName = buildArtificialName(identifier);
addMapping(artificialName, identifier, mappingContext);
return artificialName;
}
private String buildArtificialName(@Nonnull final GpeEntryIdentifier identifier) {
return format("%s_%s_%s", identifier.getVni(), identifier.getLocalEid().getAddress(),
identifier.getRemoteEid().getAddress());
}
private KeyedInstanceIdentifier<Mapping, MappingKey> getMappingId(final String id) {
return namingContextIid.child(Mappings.class).child(Mapping.class, new MappingKey(id));
}
private Mapping getMapping(@Nonnull final String id,
@Nonnull final GpeEntryIdentifier identifier) {
return new MappingBuilder()
.setId(id)
.setGpeEntryIdentificator(new GpeEntryIdentificatorBuilder()
.setLocalEid(identifier.getLocalEid())
.setRemoteEid(identifier.getRemoteEid())
.setVni(identifier.getVni())
.build())
.build();
}
}
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