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.check.VniTableDumpCheck;
  24 import io.fd.honeycomb.lisp.translate.read.dump.executor.VniTableDumpExecutor;
  25 import io.fd.honeycomb.translate.read.ReadContext;
  26 import io.fd.honeycomb.translate.read.ReadFailedException;
  27 import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
  28 import io.fd.honeycomb.translate.util.RWUtils;
  29 import io.fd.honeycomb.translate.vpp.util.FutureJVppCustomizer;
  30 import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
  31 import io.fd.honeycomb.translate.util.read.cache.exceptions.execution.DumpExecutionFailedException;
  32 import java.util.Collections;
  33 import java.util.List;
  34 import java.util.stream.Collectors;
  35 import javax.annotation.Nonnull;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.EidTableBuilder;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.VniTable;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.VniTableBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev160520.eid.table.grouping.eid.table.VniTableKey;
  40 import org.opendaylight.yangtools.concepts.Builder;
  41 import org.opendaylight.yangtools.yang.binding.DataObject;
  42 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  43 import org.openvpp.jvpp.core.dto.LispEidTableMapDetails;
  44 import org.openvpp.jvpp.core.dto.LispEidTableMapDetailsReplyDump;
  45 import org.openvpp.jvpp.core.future.FutureJVppCore;
  46 import org.slf4j.Logger;
  47 import org.slf4j.LoggerFactory;
  48
  49 /**
  50  * Handles the reads of {@link VniTable} nodes
  51  */
  52 public class VniTableCustomizer extends FutureJVppCustomizer
  53         implements ListReaderCustomizer<VniTable, VniTableKey, VniTableBuilder> {
  54
  55     private static final Logger LOG = LoggerFactory.getLogger(VniTableCustomizer.class);
  56
  57     private static final String LISP_TABLE_ID_DUMP = VniTableCustomizer.class.getName();
  58     private final DumpCacheManager<LispEidTableMapDetailsReplyDump, Void> dumpManager;
  59
  60     public VniTableCustomizer(@Nonnull final FutureJVppCore futureJvpp) {
  61         super(futureJvpp);
  62         this.dumpManager = new DumpCacheManager.DumpCacheManagerBuilder<LispEidTableMapDetailsReplyDump, Void>()
  63                 .withExecutor(new VniTableDumpExecutor(futureJvpp))
  64                 .withNonEmptyPredicate(new VniTableDumpCheck())
  65                 .build();
  66     }
  67
  68     private static VniTableKey detailsToKey(final LispEidTableMapDetails lispEidTableMapDetails) {
  69         return new VniTableKey(Integer.valueOf(lispEidTableMapDetails.vni).longValue());
  70
  71     }
  72
  73     @Override
  74     public void merge(@Nonnull final Builder<? extends DataObject> builder, @Nonnull final List<VniTable> readData) {
  75         ((EidTableBuilder) builder).setVniTable(readData);
  76     }
  77
  78     @Nonnull
  79     @Override
  80     public VniTableBuilder getBuilder(@Nonnull final InstanceIdentifier<VniTable> id) {
  81         return new VniTableBuilder();
  82     }
  83
  84     @Nonnull
  85     @Override
  86     public List<VniTableKey> getAllIds(@Nonnull final InstanceIdentifier<VniTable> id,
  87                                        @Nonnull final ReadContext context)
  88             throws ReadFailedException {
  89         LOG.trace("Reading all IDS...");
  90
  91         Optional<LispEidTableMapDetailsReplyDump> optionalReply;
  92         try {
  93             optionalReply = dumpManager.getDump(LISP_TABLE_ID_DUMP, context.getModificationCache(), NO_PARAMS);
  94         } catch (DumpExecutionFailedException e) {
  95             throw new ReadFailedException(id, e);
  96         }
  97
  98         if (!optionalReply.isPresent()) {
  99             return Collections.emptyList();
 100         }
 101
 102         LispEidTableMapDetailsReplyDump reply = optionalReply.get();
 103         LOG.debug("Dumped ...");
 104
 105         // Just transform received details into a list of keys
 106         final List<VniTableKey> collect = reply.lispEidTableMapDetails.stream().map(VniTableCustomizer::detailsToKey)
 107                 .collect(Collectors.toList());
 108         LOG.debug("All IDs found: {} ...", collect);
 109         return collect;
 110     }
 111
 112     @Override
 113     public void readCurrentAttributes(@Nonnull final InstanceIdentifier<VniTable> id,
 114                                       @Nonnull final VniTableBuilder builder, @Nonnull final ReadContext ctx)
 115             throws ReadFailedException {
 116
 117         checkState(id.firstKeyOf(VniTable.class) != null, "No VNI present");
 118         VniTableKey key = new VniTableKey(id.firstKeyOf(VniTable.class).getVirtualNetworkIdentifier());
 119
 120         Optional<LispEidTableMapDetailsReplyDump> optionalReply;
 121         try {
 122             optionalReply = dumpManager.getDump(LISP_TABLE_ID_DUMP, ctx.getModificationCache(), NO_PARAMS);
 123         } catch (DumpExecutionFailedException e) {
 124             throw new ReadFailedException(id, e);
 125         }
 126
 127         if (!optionalReply.isPresent()) {
 128             return;
 129         }
 130
 131         //transforming right away to single detail(specific request should do the magic)
 132         LispEidTableMapDetails details =
 133                 optionalReply.get().lispEidTableMapDetails.stream().filter(a -> detailsToKey(a).equals(key))
 134                         .collect(RWUtils.singleItemCollector());
 135
 136         builder.setVirtualNetworkIdentifier((long) details.vni);
 137         builder.setTableId((long) details.dpTable);
 138     }
 139 }