lisp/lisp2vpp/src/main/java/io/fd/honeycomb/lisp/translate/read/InterfaceCustomizer.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
  20 import static com.google.common.base.Preconditions.checkNotNull;
  21 import static com.google.common.base.Preconditions.checkState;
  22
  23 import com.google.common.base.Optional;
  24 import io.fd.honeycomb.lisp.translate.read.dump.executor.LocatorDumpExecutor;
  25 import io.fd.honeycomb.lisp.translate.read.dump.executor.params.LocatorDumpParams;
  26 import io.fd.honeycomb.lisp.translate.read.dump.executor.params.LocatorDumpParams.LocatorDumpParamsBuilder;
  27 import io.fd.honeycomb.translate.read.ReadContext;
  28 import io.fd.honeycomb.translate.read.ReadFailedException;
  29 import io.fd.honeycomb.translate.spi.read.ListReaderCustomizer;
  30 import io.fd.honeycomb.translate.util.RWUtils;
  31 import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager;
  32 import io.fd.honeycomb.translate.vpp.util.FutureJVppCustomizer;
  33 import io.fd.honeycomb.translate.vpp.util.NamingContext;
  34 import io.fd.vpp.jvpp.core.dto.LispLocatorDetails;
  35 import io.fd.vpp.jvpp.core.dto.LispLocatorDetailsReplyDump;
  36 import io.fd.vpp.jvpp.core.future.FutureJVppCore;
  37 import java.util.Collections;
  38 import java.util.List;
  39 import java.util.stream.Collectors;
  40 import javax.annotation.Nonnull;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.locator.sets.grouping.locator.sets.LocatorSet;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.locator.sets.grouping.locator.sets.LocatorSetBuilder;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.locator.sets.grouping.locator.sets.locator.set.Interface;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.locator.sets.grouping.locator.sets.locator.set.InterfaceBuilder;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.lisp.rev161214.locator.sets.grouping.locator.sets.locator.set.InterfaceKey;
  46 import org.opendaylight.yangtools.concepts.Builder;
  47 import org.opendaylight.yangtools.yang.binding.DataObject;
  48 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  49
  50
  51 /**
  52  * Customizer for reading {@code Interface}<br> Currently not supported by jvpp
  53  */
  54 public class InterfaceCustomizer
  55         extends FutureJVppCustomizer
  56         implements ListReaderCustomizer<Interface, InterfaceKey, InterfaceBuilder> {
  57
  58     private static final String KEY_BASE = InterfaceCustomizer.class.getName();
  59
  60     private final NamingContext interfaceContext;
  61     private final NamingContext locatorSetContext;
  62     private final DumpCacheManager<LispLocatorDetailsReplyDump, LocatorDumpParams> dumpCacheManager;
  63
  64     public InterfaceCustomizer(
  65             @Nonnull final FutureJVppCore futureJvpp,
  66             @Nonnull final NamingContext interfaceContext,
  67             @Nonnull final NamingContext locatorSetContext) {
  68         super(futureJvpp);
  69         this.interfaceContext = checkNotNull(interfaceContext, "Interface context cannot be null");
  70         this.locatorSetContext = checkNotNull(locatorSetContext, "Locator set context cannot be null");
  71         this.dumpCacheManager =
  72                 new DumpCacheManager.DumpCacheManagerBuilder<LispLocatorDetailsReplyDump, LocatorDumpParams>()
  73                         .withExecutor(new LocatorDumpExecutor(futureJvpp))
  74                         .build();
  75     }
  76
  77     @Override
  78     public InterfaceBuilder getBuilder(InstanceIdentifier<Interface> id) {
  79         return new InterfaceBuilder();
  80     }
  81
  82     @Override
  83     public void readCurrentAttributes(InstanceIdentifier<Interface> id, InterfaceBuilder builder, ReadContext ctx)
  84             throws ReadFailedException {
  85
  86         final String locatorSetName = id.firstKeyOf(LocatorSet.class).getName();
  87         final String referencedInterfaceName = id.firstKeyOf(Interface.class).getInterfaceRef();
  88
  89         checkState(interfaceContext.containsIndex(referencedInterfaceName, ctx.getMappingContext()),
  90                 "No interface mapping for name %s", referencedInterfaceName);
  91         checkState(locatorSetContext.containsIndex(locatorSetName, ctx.getMappingContext()),
  92                 "No locator set mapping for name %s", locatorSetName);
  93
  94         final int locatorSetIndexIndex = locatorSetContext.getIndex(locatorSetName, ctx.getMappingContext());
  95         final int referencedInterfaceIndex =
  96                 interfaceContext.getIndex(referencedInterfaceName, ctx.getMappingContext());
  97
  98         final LocatorDumpParams params =
  99                 new LocatorDumpParamsBuilder().setLocatorSetIndex(locatorSetIndexIndex).build();
 100
 101         final Optional<LispLocatorDetailsReplyDump> reply =
 102                 dumpCacheManager.getDump(id, KEY_BASE, ctx.getModificationCache(), params);
 103
 104         if (!reply.isPresent() || reply.get().lispLocatorDetails.isEmpty()) {
 105             return;
 106         }
 107
 108         final LispLocatorDetails details = reply.get()
 109                 .lispLocatorDetails
 110                 .stream()
 111                 .filter(a -> a.swIfIndex == referencedInterfaceIndex)
 112                 .collect(RWUtils.singleItemCollector());
 113
 114         final String interfaceRef = interfaceContext.getName(details.swIfIndex, ctx.getMappingContext());
 115
 116         builder.setPriority(Byte.valueOf(details.priority).shortValue());
 117         builder.setWeight(Byte.valueOf(details.weight).shortValue());
 118         builder.setInterfaceRef(interfaceRef);
 119         builder.setKey(new InterfaceKey(interfaceRef));
 120     }
 121
 122     @Override
 123     public List<InterfaceKey> getAllIds(InstanceIdentifier<Interface> id, ReadContext context)
 124             throws ReadFailedException {
 125
 126         checkState(id.firstKeyOf(LocatorSet.class) != null, "Cannot find reference to parent locator set");
 127         final String name = id.firstKeyOf(LocatorSet.class).getName();
 128
 129         checkState(locatorSetContext.containsIndex(name, context.getMappingContext()), "No mapping for %s", name);
 130         final LocatorDumpParams params = new LocatorDumpParamsBuilder()
 131                 .setLocatorSetIndex(locatorSetContext.getIndex(name, context.getMappingContext())).build();
 132
 133         final Optional<LispLocatorDetailsReplyDump> reply =
 134                 dumpCacheManager.getDump(id, KEY_BASE, context.getModificationCache(), params);
 135
 136         if (!reply.isPresent() || reply.get().lispLocatorDetails.isEmpty()) {
 137             return Collections.emptyList();
 138         }
 139
 140         return reply.get()
 141                 .lispLocatorDetails
 142                 .stream()
 143                 .map(a -> new InterfaceKey(interfaceContext.getName(a.swIfIndex, context.getMappingContext())))
 144                 .collect(Collectors.toList());
 145     }
 146
 147     @Override
 148     public void merge(Builder<? extends DataObject> builder, List<Interface> readData) {
 149         ((LocatorSetBuilder) builder).setInterface(readData);
 150     }
 151 }