gerrit.fd Code Review - hc2vpp.git/blob

   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.v3po.translate.v3po.interfacesstate.ip;
  18
  19 import com.google.common.base.Optional;
  20 import io.fd.honeycomb.v3po.translate.ModificationCache;
  21 import io.fd.honeycomb.v3po.translate.read.ReadContext;
  22 import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
  23 import io.fd.honeycomb.v3po.translate.spi.read.ListReaderCustomizer;
  24 import io.fd.honeycomb.v3po.translate.util.RWUtils;
  25 import io.fd.honeycomb.v3po.translate.v3po.util.FutureJVppCustomizer;
  26 import io.fd.honeycomb.v3po.translate.v3po.util.TranslateUtils;
  27 import java.util.Arrays;
  28 import java.util.Collections;
  29 import java.util.List;
  30 import java.util.stream.Collectors;
  31 import javax.annotation.Nonnull;
  32 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces.state._interface.Ipv4;
  33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces.state._interface.Ipv4Builder;
  34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces.state._interface.ipv4.Address;
  35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces.state._interface.ipv4.AddressBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces.state._interface.ipv4.AddressKey;
  37 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ip.rev140616.interfaces.state._interface.ipv4.address.subnet.PrefixLengthBuilder;
  38 import org.opendaylight.yangtools.concepts.Builder;
  39 import org.opendaylight.yangtools.yang.binding.DataObject;
  40 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  41 import org.openvpp.jvpp.VppBaseCallException;
  42 import org.openvpp.jvpp.dto.IpAddressDetails;
  43 import org.openvpp.jvpp.dto.IpAddressDetailsReplyDump;
  44 import org.openvpp.jvpp.dto.IpAddressDump;
  45 import org.openvpp.jvpp.future.FutureJVpp;
  46 import org.slf4j.Logger;
  47 import org.slf4j.LoggerFactory;
  48
  49 /**
  50  * Customizer for read operations for {@link Address} of {@link Ipv4}
  51  */
  52 public class Ipv4AddressCustomizer extends FutureJVppCustomizer
  53         implements ListReaderCustomizer<Address, AddressKey, AddressBuilder> {
  54
  55     private static final Logger LOG = LoggerFactory.getLogger(Ipv4AddressCustomizer.class);
  56
  57     private static final String CACHE_KEY = Ipv4AddressCustomizer.class.getName();
  58
  59     public Ipv4AddressCustomizer(FutureJVpp futureJvpp) {
  60         super(futureJvpp);
  61     }
  62
  63     @Override
  64     public AddressBuilder getBuilder(@Nonnull InstanceIdentifier<Address> id) {
  65         return new AddressBuilder();
  66     }
  67
  68     @Override
  69     public void readCurrentAttributes(@Nonnull InstanceIdentifier<Address> id, @Nonnull AddressBuilder builder,
  70                                       @Nonnull ReadContext ctx)
  71             throws ReadFailedException {
  72         LOG.debug("Reading attributes...");
  73
  74         Optional<IpAddressDetailsReplyDump> dumpOptional = dumpAddresses(id, ctx);
  75
  76         if (dumpOptional.isPresent() && dumpOptional.get().ipAddressDetails != null) {
  77             List<IpAddressDetails> details = dumpOptional.get().ipAddressDetails;
  78
  79             AddressKey key = id.firstKeyOf(Address.class);
  80             byte[] identifingIpBytes = TranslateUtils.ipv4AddressNoZoneToArray(key.getIp());
  81
  82             IpAddressDetails detail = details.stream()
  83                     .filter(singleDetail -> Arrays.equals(identifingIpBytes, singleDetail.ip))
  84                     .collect(RWUtils.singleItemCollector());
  85
  86             builder.setIp(TranslateUtils.arrayToIpv4AddressNoZone(detail.ip))
  87                     .setSubnet(new PrefixLengthBuilder()
  88                             .setPrefixLength(Short.valueOf(detail.prefixLength)).build());
  89             LOG.info("Address read successfull");
  90
  91         } else {
  92             LOG.warn("No address dump present");
  93         }
  94     }
  95
  96     @Override
  97     public List<AddressKey> getAllIds(@Nonnull InstanceIdentifier<Address> id, @Nonnull ReadContext context)
  98             throws ReadFailedException {
  99         LOG.debug("Extracting keys..");
 100
 101         Optional<IpAddressDetailsReplyDump> dumpOptional = dumpAddresses(id, context);
 102
 103         if (dumpOptional.isPresent() && dumpOptional.get().ipAddressDetails != null) {
 104
 105             List<IpAddressDetails> details = dumpOptional.get().ipAddressDetails;
 106
 107             return details.stream()
 108                     .map(detail -> new AddressKey(TranslateUtils.arrayToIpv4AddressNoZone(detail.ip)))
 109                     .collect(Collectors.toList());
 110         } else {
 111             LOG.warn("No dump present");
 112             return Collections.emptyList();
 113         }
 114     }
 115
 116     @Override
 117     public void merge(@Nonnull Builder<? extends DataObject> builder, @Nonnull List<Address> readData) {
 118         ((Ipv4Builder) builder).setAddress(readData);
 119     }
 120
 121     // TODO refactor after there is an more generic implementation of cache
 122     // operations
 123     private Optional<IpAddressDetailsReplyDump> dumpAddresses(InstanceIdentifier<Address> id, ReadContext ctx)
 124             throws ReadFailedException {
 125         Optional<IpAddressDetailsReplyDump> dumpFromCache = dumpAddressFromCache(ctx.getModificationCache());
 126
 127         if (dumpFromCache.isPresent()) {
 128             return dumpFromCache;
 129         }
 130
 131         Optional<IpAddressDetailsReplyDump> dumpFromOperational;
 132         try {
 133             dumpFromOperational = dumpAddressFromOperationalData();
 134         } catch (VppBaseCallException e) {
 135             throw new ReadFailedException(id, e);
 136         }
 137
 138         if (dumpFromOperational.isPresent()) {
 139             ctx.getModificationCache().put(CACHE_KEY, dumpFromOperational.get());
 140         }
 141
 142         return dumpFromOperational;
 143     }
 144
 145     private Optional<IpAddressDetailsReplyDump> dumpAddressFromCache(ModificationCache cache) {
 146         LOG.debug("Dumping from cache...");
 147         return Optional.fromNullable((IpAddressDetailsReplyDump) cache.get(CACHE_KEY));
 148     }
 149
 150     private Optional<IpAddressDetailsReplyDump> dumpAddressFromOperationalData() throws VppBaseCallException {
 151         LOG.debug("Dumping from operational data...");
 152         return Optional.fromNullable(
 153                 TranslateUtils.getReply(getFutureJVpp().ipAddressDump(new IpAddressDump()).toCompletableFuture()));
 154     }
 155
 156 }