v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/ip/Ipv4Reader.java

   1 /*
   2  * Copyright (c) 2016 Cisco and/or its affiliates.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package io.fd.honeycomb.translate.v3po.interfacesstate.ip;
  18
  19 import static com.google.common.base.Preconditions.checkNotNull;
  20
  21 import com.google.common.base.Optional;
  22 import io.fd.honeycomb.translate.util.RWUtils;
  23 import io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor;
  24 import io.fd.honeycomb.translate.v3po.interfacesstate.ip.dump.params.AddressDumpParams;
  25 import io.fd.honeycomb.translate.vpp.util.Ipv4Translator;
  26 import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
  27 import io.fd.vpp.jvpp.core.dto.IpAddressDump;
  28 import io.fd.vpp.jvpp.core.future.FutureJVppCore;
  29 import java.util.Collections;
  30 import java.util.List;
  31 import java.util.function.Function;
  32 import java.util.stream.Collectors;
  33 import javax.annotation.Nonnull;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
  35 import org.opendaylight.yangtools.yang.binding.Identifier;
  36 import io.fd.vpp.jvpp.core.dto.IpAddressDetails;
  37 import io.fd.vpp.jvpp.core.dto.IpAddressDetailsReplyDump;
  38
  39 /**
  40  * Utility class providing Ipv4 read support.
  41  */
  42 interface Ipv4Reader extends Ipv4Translator, JvppReplyConsumer {
  43
  44     @Nonnull
  45     default <T extends Identifier> List<T> getAllIpv4AddressIds(
  46             final Optional<IpAddressDetailsReplyDump> dumpOptional,
  47             @Nonnull final Function<Ipv4AddressNoZone, T> keyConstructor) {
  48         if (dumpOptional.isPresent() && dumpOptional.get().ipAddressDetails != null) {
  49             return dumpOptional.get().ipAddressDetails.stream()
  50                     .map(detail -> keyConstructor.apply(arrayToIpv4AddressNoZone(detail.ip)))
  51                     .collect(Collectors.toList());
  52         } else {
  53             return Collections.emptyList();
  54         }
  55     }
  56
  57     default Optional<IpAddressDetails> findIpAddressDetailsByIp(
  58             final Optional<IpAddressDetailsReplyDump> dump,
  59             @Nonnull final Ipv4AddressNoZone ip) {
  60         checkNotNull(ip, "ip address should not be null");
  61
  62         if (dump.isPresent() && dump.get().ipAddressDetails != null) {
  63             final List<IpAddressDetails> details = dump.get().ipAddressDetails;
  64
  65             return Optional.of(details.stream()
  66                     .filter(singleDetail -> ip.equals(arrayToIpv4AddressNoZone(singleDetail.ip)))
  67                     .collect(RWUtils.singleItemCollector()));
  68         }
  69         return Optional.absent();
  70     }
  71
  72     default EntityDumpExecutor<IpAddressDetailsReplyDump, AddressDumpParams> createExecutor(
  73             @Nonnull final FutureJVppCore vppApi) {
  74         return (identifier, params) -> {
  75             checkNotNull(params, "Address dump params cannot be null");
  76
  77             final IpAddressDump dumpRequest = new IpAddressDump();
  78             dumpRequest.isIpv6 = booleanToByte(params.isIpv6());
  79             dumpRequest.swIfIndex = params.getInterfaceIndex();
  80
  81             return getReplyForRead(vppApi.ipAddressDump(dumpRequest).toCompletableFuture(), identifier);
  82         };
  83     }
  84 }