lisp/lisp2vpp/src/main/java/io/fd/honeycomb/lisp/translate/read/VniTableCustomizer.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.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.lisp.translate.read.dump.executor.VniTableDumpExecutor;
  24 import io.fd.honeycomb.translate.read.ReadContext;
  25 import io.fd.honeycomb.translate.read.ReadFailedException;
  26 import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
  27 import io.fd.honeycomb.translate.util.RWUtils;
  28 import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
  29 import io.fd.honeycomb.translate.vpp.util.FutureJVppCustomizer;
  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.future.FutureJVppCore;
  33 import java.util.Collections;
  34 import java.util.List;
  35 import java.util.stream.Collectors;
  36 import javax.annotation.Nonnull;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.EidTableBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.VniTable;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.VniTableBuilder;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.VniTableKey;
  41 import org.opendaylight.yangtools.concepts.Builder;
  42 import org.opendaylight.yangtools.yang.binding.DataObject;
  43 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  44 import org.slf4j.Logger;
  45 import org.slf4j.LoggerFactory;
  46
  47 /**
  48  * Handles the reads of {@link VniTable} nodes
  49  */
  50 public class VniTableCustomizer extends FutureJVppCustomizer
  51         implements ListReaderCustomizer<VniTable, VniTableKey, VniTableBuilder> {
  52
  53     private static final Logger LOG = LoggerFactory.getLogger(VniTableCustomizer.class);
  54
  55     private static final String LISP_TABLE_ID_DUMP = VniTableCustomizer.class.getName();
  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(new VniTableDumpExecutor(futureJvpp))
  62                 .build();
  63     }
  64
  65     private static VniTableKey detailsToKey(final LispEidTableVniDetails lispEidTableMapDetails) {
  66         return new VniTableKey(Integer.valueOf(lispEidTableMapDetails.vni).longValue());
  67
  68     }
  69
  70     @Override
  71     public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<VniTable> readData) {
  72         ((EidTableBuilder) builder).setVniTable(readData);
  73     }
  74
  75     @Nonnull
  76     @Override
  77     public VniTableBuilder getBuilder(@Nonnull final InstanceIdentifier<VniTable> id) {
  78         return new VniTableBuilder();
  79     }
  80
  81     @Nonnull
  82     @Override
  83     public List<VniTableKey> getAllIds(@Nonnull final InstanceIdentifier<VniTable> id,
  84                                        @Nonnull final ReadContext context)
  85             throws ReadFailedException {
  86         LOG.trace("Reading all IDS...");
  87
  88         final Optional<LispEidTableVniDetailsReplyDump> optionalReply =
  89                 dumpManager.getDump(id, LISP_TABLE_ID_DUMP, context.getModificationCache(), NO_PARAMS);
  90
  91         if (!optionalReply.isPresent() || optionalReply.get().lispEidTableVniDetails.isEmpty()) {
  92             return Collections.emptyList();
  93         }
  94
  95         return optionalReply.get().lispEidTableVniDetails.stream().map(VniTableCustomizer::detailsToKey)
  96                 .collect(Collectors.toList());
  97     }
  98
  99     @Override
 100     public void readCurrentAttributes(@Nonnull final InstanceIdentifier<VniTable> id,
 101                                       @Nonnull final VniTableBuilder builder, @Nonnull final ReadContext ctx)
 102             throws ReadFailedException {
 103
 104         checkState(id.firstKeyOf(VniTable.class) != null, "No VNI present");
 105         VniTableKey key = new VniTableKey(id.firstKeyOf(VniTable.class).getVirtualNetworkIdentifier());
 106
 107         final Optional<LispEidTableVniDetailsReplyDump> optionalReply =
 108                 dumpManager.getDump(id, LISP_TABLE_ID_DUMP, ctx.getModificationCache(), NO_PARAMS);
 109
 110         if (!optionalReply.isPresent() || optionalReply.get().lispEidTableVniDetails.isEmpty()) {
 111             return;
 112         }
 113
 114         //transforming right away to single detail(specific request should do the magic)
 115         final LispEidTableVniDetails details = optionalReply.get()
 116                 .lispEidTableVniDetails
 117                 .stream()
 118                 .filter(a -> a.vni == key.getVirtualNetworkIdentifier().intValue())
 119                 .collect(RWUtils.singleItemCollector());
 120
 121         builder.setVirtualNetworkIdentifier((long) details.vni);
 122         builder.setKey(new VniTableKey(Long.valueOf(details.vni)));
 123     }
 124 }