lisp/lisp2vpp/src/main/java/io/fd/honeycomb/lisp/translate/read/VniTableCustomizer.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.lisp.translate.read;
  18
  19 import static com.google.common.base.Preconditions.checkState;
  20 import static io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor.NO_PARAMS;
  21
  22 import com.google.common.base.Optional;
  23 import io.fd.honeycomb.translate.read.ReadContext;
  24 import io.fd.honeycomb.translate.read.ReadFailedException;
  25 import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
  26 import io.fd.honeycomb.translate.util.RWUtils;
  27 import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
  28 import io.fd.honeycomb.translate.vpp.util.FutureJVppCustomizer;
  29 import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
  30 import io.fd.vpp.jvpp.core.dto.LispEidTableVniDetails;
  31 import io.fd.vpp.jvpp.core.dto.LispEidTableVniDetailsReplyDump;
  32 import io.fd.vpp.jvpp.core.dto.LispEidTableVniDump;
  33 import io.fd.vpp.jvpp.core.future.FutureJVppCore;
  34 import java.util.Collections;
  35 import java.util.List;
  36 import java.util.stream.Collectors;
  37 import javax.annotation.Nonnull;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.eid.table.grouping.EidTableBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.eid.table.grouping.eid.table.VniTable;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.eid.table.grouping.eid.table.VniTableBuilder;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.eid.table.grouping.eid.table.VniTableKey;
  42 import org.opendaylight.yangtools.concepts.Builder;
  43 import org.opendaylight.yangtools.yang.binding.DataObject;
  44 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  45 import org.slf4j.Logger;
  46 import org.slf4j.LoggerFactory;
  47
  48 /**
  49  * Handles the reads of {@link VniTable} nodes
  50  */
  51 public class VniTableCustomizer extends FutureJVppCustomizer
  52         implements ListReaderCustomizer<VniTable, VniTableKey, VniTableBuilder>, JvppReplyConsumer {
  53
  54     private static final Logger LOG = LoggerFactory.getLogger(VniTableCustomizer.class);
  55
  56     private final DumpCacheManager<LispEidTableVniDetailsReplyDump, Void> dumpManager;
  57
  58     public VniTableCustomizer(@Nonnull final FutureJVppCore futureJvpp) {
  59         super(futureJvpp);
  60         this.dumpManager = new DumpCacheManager.DumpCacheManagerBuilder<LispEidTableVniDetailsReplyDump, Void>()
  61                 .withExecutor(((identifier, params) -> getReplyForRead(
  62                         futureJvpp.lispEidTableVniDump(new LispEidTableVniDump()).toCompletableFuture(), identifier)))
  63                 .build();
  64     }
  65
  66     private static VniTableKey detailsToKey(final LispEidTableVniDetails lispEidTableMapDetails) {
  67         return new VniTableKey(Integer.valueOf(lispEidTableMapDetails.vni).longValue());
  68
  69     }
  70
  71     @Override
  72     public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<VniTable> readData) {
  73         ((EidTableBuilder) builder).setVniTable(readData);
  74     }
  75
  76     @Nonnull
  77     @Override
  78     public VniTableBuilder getBuilder(@Nonnull final InstanceIdentifier<VniTable> id) {
  79         return new VniTableBuilder();
  80     }
  81
  82     @Nonnull
  83     @Override
  84     public List<VniTableKey> getAllIds(@Nonnull final InstanceIdentifier<VniTable> id,
  85                                        @Nonnull final ReadContext context)
  86             throws ReadFailedException {
  87         LOG.trace("Reading all IDS...");
  88
  89         final Optional<LispEidTableVniDetailsReplyDump> optionalReply =
  90                 dumpManager.getDump(id, context.getModificationCache(), NO_PARAMS);
  91
  92         if (!optionalReply.isPresent() || optionalReply.get().lispEidTableVniDetails.isEmpty()) {
  93             return Collections.emptyList();
  94         }
  95
  96         return optionalReply.get().lispEidTableVniDetails.stream().map(VniTableCustomizer::detailsToKey)
  97                 .collect(Collectors.toList());
  98     }
  99
 100     @Override
 101     public void readCurrentAttributes(@Nonnull final InstanceIdentifier<VniTable> id,
 102                                       @Nonnull final VniTableBuilder builder, @Nonnull final ReadContext ctx)
 103             throws ReadFailedException {
 104
 105         checkState(id.firstKeyOf(VniTable.class) != null, "No VNI present");
 106         VniTableKey key = new VniTableKey(id.firstKeyOf(VniTable.class).getVirtualNetworkIdentifier());
 107
 108         final Optional<LispEidTableVniDetailsReplyDump> optionalReply =
 109                 dumpManager.getDump(id, ctx.getModificationCache(), NO_PARAMS);
 110
 111         if (!optionalReply.isPresent() || optionalReply.get().lispEidTableVniDetails.isEmpty()) {
 112             return;
 113         }
 114
 115         //transforming right away to single detail(specific request should do the magic)
 116         final LispEidTableVniDetails details = optionalReply.get()
 117                 .lispEidTableVniDetails
 118                 .stream()
 119                 .filter(a -> a.vni == key.getVirtualNetworkIdentifier().intValue())
 120                 .collect(RWUtils.singleItemCollector());
 121
 122         builder.setVirtualNetworkIdentifier((long) details.vni);
 123         builder.setKey(new VniTableKey(Long.valueOf(details.vni)));
 124     }
 125 }