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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.hc2vpp.lisp.translate.write;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import static java.nio.charset.StandardCharsets.UTF_8;
import com.google.common.base.Optional;
import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.hc2vpp.common.translate.util.ReferenceCheck;
import io.fd.hc2vpp.lisp.translate.read.trait.LocatorSetReader;
import io.fd.hc2vpp.lisp.translate.service.LispStateCheckService;
import io.fd.hc2vpp.lisp.translate.util.CheckedLispCustomizer;
import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import io.fd.vpp.jvpp.core.dto.OneAddDelLocatorSet;
import io.fd.vpp.jvpp.core.future.FutureJVppCore;
import java.util.Collection;
import java.util.Collections;
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.lisp.rev171013.DpSubtableGrouping;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.Lisp;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.dp.subtable.grouping.LocalMappings;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.dp.subtable.grouping.local.mappings.LocalMapping;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.eid.table.grouping.EidTable;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.eid.table.grouping.eid.table.VniTable;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.lisp.feature.data.grouping.LispFeatureData;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.locator.sets.grouping.locator.sets.LocatorSet;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.locator.sets.grouping.locator.sets.LocatorSetKey;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev171013.locator.sets.grouping.locator.sets.locator.set.Interface;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* Customizer for {@link LocatorSet} entity.
*
* @see LocatorSet
*/
public class LocatorSetCustomizer extends CheckedLispCustomizer
implements ListWriterCustomizer<LocatorSet, LocatorSetKey>, ByteDataTranslator,
LocatorSetReader, ReferenceCheck {
private final NamingContext locatorSetContext;
public LocatorSetCustomizer(@Nonnull final FutureJVppCore futureJvpp,
@Nonnull final NamingContext locatorSetContext,
@Nonnull final LispStateCheckService lispStateCheckService) {
super(futureJvpp, lispStateCheckService);
this.locatorSetContext = checkNotNull(locatorSetContext, "Locator set context cannot be null");
}
@Override
public void writeCurrentAttributes(@Nonnull InstanceIdentifier<LocatorSet> id,
@Nonnull LocatorSet dataAfter,
@Nonnull WriteContext writeContext) throws WriteFailedException {
lispStateCheckService.checkLispEnabledAfter(writeContext);
checkState(isNonEmptyLocatorSet(writeContext.readAfter(id).get()),
"Creating empty locator-sets is not allowed");
final String locatorSetName = dataAfter.getName();
final int locatorSetIndex = addDelLocatorSetAndReply(true, dataAfter.getName(), id);
locatorSetContext.addName(locatorSetIndex, locatorSetName, writeContext.getMappingContext());
}
private boolean isNonEmptyLocatorSet(final LocatorSet locatorSet) {
final List<Interface> locators = locatorSet.getInterface();
return locators != null && !locators.isEmpty();
}
@Override
public void deleteCurrentAttributes(@Nonnull InstanceIdentifier<LocatorSet> id,
@Nonnull LocatorSet dataBefore,
@Nonnull WriteContext writeContext) throws WriteFailedException {
lispStateCheckService.checkLispEnabledBefore(writeContext);
final String locatorSetName = dataBefore.getName();
final Optional<EidTable> eidTableData = writeContext.readAfter(InstanceIdentifier.create(Lisp.class)
.child(LispFeatureData.class)
.child(EidTable.class));
if (eidTableData.isPresent()) {
// due to non-functional LeafRefValidation, it must be checked like this
final List<VniTable> vniTables =
Optional.fromNullable(eidTableData.get().getVniTable()).or(Collections.emptyList());
checkReferenceExist(id, vrfReferences(vniTables, locatorSetName));
checkReferenceExist(id, bdReferences(vniTables, locatorSetName));
}
addDelLocatorSetAndReply(false, dataBefore.getName(), id);
//removes mapping after successful delete
locatorSetContext.removeName(locatorSetName, writeContext.getMappingContext());
}
private Collection<LocalMapping> bdReferences(final List<VniTable> vniTables,
final String locatorSetName) {
return vniTables.stream()
.map(vniTable -> java.util.Optional.ofNullable(vniTable.getBridgeDomainSubtable())
.map(DpSubtableGrouping::getLocalMappings)
.map(LocalMappings::getLocalMapping)
.orElse(Collections.emptyList()))
.flatMap(Collection::stream)
.filter(localMapping -> locatorSetName.equals(localMapping.getLocatorSet()))
.collect(Collectors.toSet());
}
private static Collection<LocalMapping> vrfReferences(final List<VniTable> vniTables,
final String locatorSetName) {
return vniTables.stream()
.map(vniTable -> java.util.Optional.ofNullable(vniTable.getVrfSubtable())
.map(DpSubtableGrouping::getLocalMappings)
.map(LocalMappings::getLocalMapping)
.orElse(Collections.emptyList()))
.flatMap(Collection::stream)
.filter(localMapping -> locatorSetName.equals(localMapping.getLocatorSet()))
.collect(Collectors.toSet());
}
private int addDelLocatorSetAndReply(final boolean add, final String name, final InstanceIdentifier<LocatorSet> id)
throws WriteFailedException {
OneAddDelLocatorSet addDelSet = new OneAddDelLocatorSet();
addDelSet.isAdd = booleanToByte(add);
addDelSet.locatorSetName = name.getBytes(UTF_8);
return getReplyForWrite(getFutureJVpp().oneAddDelLocatorSet(addDelSet).toCompletableFuture(), id).lsIndex;
}
}
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