diff options
Diffstat (limited to 'nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyCustomizer.java')
-rw-r--r-- | nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyCustomizer.java | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyCustomizer.java b/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyCustomizer.java new file mode 100644 index 000000000..ecc340f38 --- /dev/null +++ b/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyCustomizer.java @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2018 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.write; + +import static com.google.common.base.Preconditions.checkArgument; + +import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer; +import io.fd.honeycomb.translate.write.WriteContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.Instance; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.instance.Policy; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.instance.PolicyKey; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +final class PolicyCustomizer implements ListWriterCustomizer<Policy, PolicyKey> { + + private static final Logger LOG = LoggerFactory.getLogger(PolicyCustomizer.class); + + @Override + public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Policy> id, + @Nonnull final Policy dataAfter, @Nonnull final WriteContext writeContext) + throws WriteFailedException { + LOG.trace("Writing NAT policy: {}", id); + + // HC supports only single NAT policy per NAT instance (VRF) + // To ensure that (and for simplicity), we require policy id = 0. + final Long policyId = id.firstKeyOf(Policy.class).getId(); + checkArgument(policyId == 0, + "Only single policy per NAT instance (VRF) is supported (expected id=0, but %s given)", policyId); + } + + @Override + public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Policy> id, + @Nonnull final Policy dataBefore, @Nonnull final WriteContext writeContext) + throws WriteFailedException { + LOG.trace("Deleting NAT policy: {}", id); + } +} |