lisp/lisp2vpp/src/main/java/io/fd/honeycomb/lisp/translate/read/VrfSubtableCustomizer.java

   1 /*
   2  * Copyright (c) 2015 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.checkNotNull;
  20
  21 import com.google.common.base.Optional;
  22 import io.fd.honeycomb.lisp.translate.read.dump.executor.SubtableDumpExecutor;
  23 import io.fd.honeycomb.lisp.translate.read.dump.executor.params.SubtableDumpParams;
  24 import io.fd.honeycomb.lisp.translate.read.trait.SubtableReader;
  25 import io.fd.honeycomb.translate.read.ReadContext;
  26 import io.fd.honeycomb.translate.read.ReadFailedException;
  27 import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
  28 import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
  29 import io.fd.honeycomb.translate.vpp.util.FutureJVppCustomizer;
  30 import java.util.List;
  31 import java.util.stream.Collectors;
  32 import javax.annotation.Nonnull;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.VniTable;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.VniTableBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.vni.table.VrfSubtable;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.vni.table.VrfSubtableBuilder;
  37 import org.opendaylight.yangtools.concepts.Builder;
  38 import org.opendaylight.yangtools.yang.binding.DataObject;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40 import io.fd.vpp.jvpp.core.dto.LispEidTableMapDetails;
  41 import io.fd.vpp.jvpp.core.dto.LispEidTableMapDetailsReplyDump;
  42 import io.fd.vpp.jvpp.core.future.FutureJVppCore;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45
  46 public class VrfSubtableCustomizer extends FutureJVppCustomizer
  47         implements ReaderCustomizer<VrfSubtable, VrfSubtableBuilder>, SubtableReader {
  48
  49     private static final Logger LOG = LoggerFactory.getLogger(VrfSubtableCustomizer.class);
  50     private static final String CACHE_KEY = VrfSubtableCustomizer.class.getName();
  51
  52     private final DumpCacheManager<LispEidTableMapDetailsReplyDump, SubtableDumpParams> dumpManager;
  53     private final SubtableDumpExecutor dumpExecutor;
  54
  55     public VrfSubtableCustomizer(@Nonnull final FutureJVppCore futureJvpp) {
  56         super(futureJvpp);
  57         dumpExecutor = new SubtableDumpExecutor(futureJvpp);
  58         dumpManager =
  59                 new DumpCacheManager.DumpCacheManagerBuilder<LispEidTableMapDetailsReplyDump, SubtableDumpParams>()
  60                         .withExecutor(dumpExecutor)
  61                         .build();
  62     }
  63
  64     @Nonnull
  65     @Override
  66     public VrfSubtableBuilder getBuilder(@Nonnull final InstanceIdentifier<VrfSubtable> id) {
  67         return new VrfSubtableBuilder();
  68     }
  69
  70     @Override
  71     public void readCurrentAttributes(@Nonnull final InstanceIdentifier<VrfSubtable> id,
  72                                       @Nonnull final VrfSubtableBuilder builder, @Nonnull final ReadContext ctx)
  73             throws ReadFailedException {
  74         LOG.debug("Read attributes for {}", id);
  75         final int vni = checkNotNull(id.firstKeyOf(VniTable.class), "Cannot find parent VNI Table")
  76                 .getVirtualNetworkIdentifier().intValue();
  77
  78         final Optional<LispEidTableMapDetailsReplyDump> reply =
  79                 readSubtable(dumpManager, CACHE_KEY, ctx.getModificationCache(), id, L3_PARAMS);
  80
  81         if (!reply.isPresent() || reply.get().lispEidTableMapDetails.isEmpty()) {
  82             return;
  83         }
  84
  85         // Single item collector cant be used in this case,because vrf-subtable is container
  86         // so read is invoked every time parent is defined
  87         final List<LispEidTableMapDetails> details =
  88                 reply.get().lispEidTableMapDetails.stream().filter(a -> a.vni == vni)
  89                         .collect(Collectors.toList());
  90         if (details.size() == 1) {
  91             final LispEidTableMapDetails detail = details.get(0);
  92             builder.setTableId(Integer.valueOf(detail.dpTable).longValue());
  93
  94             LOG.debug("Attributes for {} successfully loaded", id);
  95         }
  96     }
  97
  98     @Override
  99     public void merge(@Nonnull final Builder<? extends DataObject> parentBuilder,
 100                       @Nonnull final VrfSubtable readValue) {
 101         ((VniTableBuilder) parentBuilder).setVrfSubtable(readValue);
 102     }
 103 }