How to use

getLocations

method

in

org.batfish.specifier.IpSpaceAssignment$Entry

private Map<StateExpr, BDD> rootConstraints(
  IpSpaceAssignment srcIpSpaceAssignment, BDD initialHeaderSpaceBdd) {
 LocationVisitor<Optional<StateExpr>> locationToStateExpr = getLocationToStateExpr();
 IpSpaceToBDD srcIpSpaceToBDD =
   new MemoizedIpSpaceToBDD(_bddPacket.getSrcIp(), ImmutableMap.of());
 // convert Locations to StateExprs, and merge srcIp constraints
 Map<StateExpr, BDD> rootConstraints = new HashMap<>();
 for (IpSpaceAssignment.Entry entry : srcIpSpaceAssignment.getEntries()) {
  BDD srcIpSpaceBDD = entry.getIpSpace().accept(srcIpSpaceToBDD);
  entry.getLocations().stream()
    .map(locationToStateExpr::visit)
    .filter(Optional::isPresent)
    .map(Optional::get)
    .forEach(root -> rootConstraints.merge(root, srcIpSpaceBDD, BDD::or));
 }
 // add the global initial HeaderSpace and remove unsat entries
 Map<StateExpr, BDD> finalRootConstraints =
   rootConstraints.entrySet().stream()
     .map(
       entry ->
         Maps.immutableEntry(
           entry.getKey(), entry.getValue().and(initialHeaderSpaceBdd)))
     .filter(entry -> !entry.getValue().isZero())
     .collect(ImmutableMap.toImmutableMap(Entry::getKey, Entry::getValue));
 // make sure there is at least one possible source
 checkArgument(
   !finalRootConstraints.isEmpty(),
   "No sources are compatible with the headerspace constraint");
 return finalRootConstraints;
}

.filter(e -> e.getLocations().contains(srcLocation))
.findFirst();

.filter(e -> e.getLocations().contains(srcLocation))
.findFirst();

@VisibleForTesting
static TableAnswerElement resolveIpSpaceOfLocation(
  SpecifiersQuestion question, SpecifierContext context) {
 List<ColumnMetadata> columns =
   ImmutableList.of(
     new ColumnMetadata(COL_LOCATIONS, Schema.STRING, "Resolution", false, false),
     new ColumnMetadata(COL_IP_SPACE, Schema.STRING, "IP space", false, false));
 TableAnswerElement table = new TableAnswerElement(new TableMetadata(columns));
 Map<String, ColumnMetadata> columnMap = table.getMetadata().toColumnMap();
 Set<Location> locations = question.getLocationSpecifier().resolve(context);
 IpSpaceAssignment ipSpaceAssignment =
   question.getIpSpaceSpecifier().resolve(locations, context);
 for (IpSpaceAssignment.Entry entry : ipSpaceAssignment.getEntries()) {
  table.addRow(
    Row.of(
      columnMap,
      COL_LOCATIONS,
      entry.getLocations().toString(),
      COL_IP_SPACE,
      Objects.toString(entry.getIpSpace())));
 }
 return table;
}

entry ->
  entry
    .getLocations()
    .forEach(
      location ->

.flatMap(entry -> entry.getLocations().stream())
.collect(ImmutableSet.toImmutableSet());