diff options
Diffstat (limited to 'nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/read/NatInstanceCustomizer.java')
| -rw-r--r-- | nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/read/NatInstanceCustomizer.java | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/read/NatInstanceCustomizer.java b/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/read/NatInstanceCustomizer.java new file mode 100644 index 000000000..9542587d0 --- /dev/null +++ b/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/read/NatInstanceCustomizer.java @@ -0,0 +1,114 @@ +/* + * 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.nat.read; + +import io.fd.honeycomb.translate.read.ReadContext; +import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.spi.read.Initialized; +import io.fd.honeycomb.translate.spi.read.InitializingListReaderCustomizer; +import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager; +import io.fd.vpp.jvpp.snat.dto.SnatStaticMappingDetailsReplyDump; +import java.util.List; +import java.util.stream.Collectors; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.NatConfig; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.NatInstancesBuilder; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.NatInstance; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.NatInstanceBuilder; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.state.nat.instances.NatInstanceKey; +import org.opendaylight.yangtools.concepts.Builder; +import org.opendaylight.yangtools.yang.binding.DataObject; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Nat instance ID is mapped to VRF-ID in VPP. + */ +final class NatInstanceCustomizer implements InitializingListReaderCustomizer<NatInstance, NatInstanceKey, NatInstanceBuilder> { + + private static final Logger LOG = LoggerFactory.getLogger(NatInstanceCustomizer.class); + static final NatInstanceKey DEFAULT_VRF_ID = new NatInstanceKey(0L); + + private final DumpCacheManager<SnatStaticMappingDetailsReplyDump, Void> dumpCacheManager; + + NatInstanceCustomizer( + final DumpCacheManager<SnatStaticMappingDetailsReplyDump, Void> dumpCacheManager) { + this.dumpCacheManager = dumpCacheManager; + } + + @Nonnull + @Override + public NatInstanceBuilder getBuilder(@Nonnull final InstanceIdentifier<NatInstance> id) { + return new NatInstanceBuilder(); + } + + @Override + public void readCurrentAttributes(@Nonnull final InstanceIdentifier<NatInstance> id, + @Nonnull final NatInstanceBuilder builder, @Nonnull final ReadContext ctx) + throws ReadFailedException { + LOG.trace("Reading current attributes for nat-instance: {}", id); + builder.setId(id.firstKeyOf(NatInstance.class).getId()); + } + + @Nonnull + @Override + public List<NatInstanceKey> getAllIds(@Nonnull final InstanceIdentifier<NatInstance> id, + @Nonnull final ReadContext context) throws ReadFailedException { + LOG.trace("Listing IDs for all nat-instances"); + + // Find the nat instance IDs (vrf-ids) by listing all static mappings and their VRF assignment + final List<NatInstanceKey> vrfIds = + dumpCacheManager.getDump(id, context.getModificationCache(), null) + .or(new SnatStaticMappingDetailsReplyDump()).snatStaticMappingDetails.stream() + .map(detail -> detail.vrfId) + .map(vrfId -> new NatInstanceKey((long) vrfId)) + .collect(Collectors.toList()); + + // Add default vrf id if not present + if (!vrfIds.contains(DEFAULT_VRF_ID)) { + vrfIds.add(0, DEFAULT_VRF_ID); + } + + LOG.debug("List of nat-instance keys (vrf-ids): {}", vrfIds); + return vrfIds; + } + + @Override + public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<NatInstance> readData) { + ((NatInstancesBuilder) builder).setNatInstance(readData); + } + + @Override + public Initialized<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.NatInstance> init(@Nonnull final InstanceIdentifier<NatInstance> id, + @Nonnull final NatInstance readValue, + @Nonnull final ReadContext ctx) { + return Initialized.create(getCfgId(id), + new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.NatInstanceBuilder() + .setId(readValue.getId()) + .build()); + } + + static InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.NatInstance> getCfgId( + @Nonnull final InstanceIdentifier<NatInstance> id) { + return InstanceIdentifier.create(NatConfig.class) + .child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.NatInstances.class) + .child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.NatInstance.class, + new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.NatInstanceKey( + id.firstKeyOf(NatInstance.class).getId())); + } +} |