How to use

subs

method

in

ai.grakn.concept.Role

  @Override
  public Stream<Role> toCompatibleRoles(Role entryRole) {
    return entryRole.subs();
  }
}

public static Collection<? extends SchemaConcept> allSchemaElementsFrom(GraknTx graph) {
  Set<SchemaConcept> allSchemaConcepts = new HashSet<>();
  allSchemaConcepts.addAll(graph.admin().getMetaConcept().subs().collect(toSet()));
  allSchemaConcepts.addAll(graph.admin().getMetaRole().subs().collect(toSet()));
  allSchemaConcepts.addAll(graph.admin().getMetaRule().subs().collect(toSet()));
  return allSchemaConcepts;
}

private Role role() {
  return random.choose(tx.admin().getMetaRole().subs().collect(toSet()));
}

  /**
   * Get all the {@link SchemaConcept}s in a graph.
   * @return a stream of all {@link SchemaConcept}s with non-reserved IDs
   */
  private Stream<? extends SchemaConcept> schemaConcepts(){
    Stream<? extends Type> types = tx.admin().getMetaConcept().subs();
    Stream<Role> roles = tx.admin().getMetaRole().subs();
    Stream<Rule> rules = tx.admin().getMetaRule().subs();

    return Stream.of(types, roles, rules)
        .flatMap(Function.identity())
        .filter(t -> !Schema.MetaSchema.isMetaLabel(t.label()));
  }
}

public static void printWholeCompletionMessage(MigrationOptions options){
  System.out.println("Migration complete.");
  if(options.isVerbose()) {
    System.out.println("Gathering information about migrated data. If in a hurry, you can ctrl+c now.");
    GraknTx tx = new Grakn(options.getUri()).session(options.getKeyspace()).transaction(GraknTxType.WRITE);
    QueryBuilder qb = tx.graql();
    StringBuilder builder = new StringBuilder();
    builder.append("Graph schema contains:\n");
    builder.append("\t ").append(tx.admin().getMetaEntityType().instances().count()).append(" entity types\n");
    builder.append("\t ").append(tx.admin().getMetaRelationType().instances().count()).append(" relation types\n");
    builder.append("\t ").append(tx.admin().getMetaRole().subs().count()).append(" roles\n\n");
    builder.append("\t ").append(tx.admin().getMetaAttributeType().instances().count()).append(" resource types\n");
    builder.append("\t ").append(tx.admin().getMetaRule().subs().count()).append(" rules\n\n");
    builder.append("Graph data contains:\n");
    builder.append("\t ").append(qb.match(var("x").isa(label(ENTITY.getLabel()))).aggregate(count()).execute()).append(" entities\n");
    builder.append("\t ").append(qb.match(var("x").isa(label(RELATIONSHIP.getLabel()))).aggregate(count()).execute()).append(" relations\n");
    builder.append("\t ").append(qb.match(var("x").isa(label(ATTRIBUTE.getLabel()))).aggregate(count()).execute()).append(" resources\n");
    builder.append("\t ").append(qb.match(var("x").isa(label(RULE.getLabel()))).aggregate(count()).execute()).append(" rules\n\n");
    System.out.println(builder);
    tx.close();
  }
}

boolean subRoleNotFoundInRelates = superRelate.subs().noneMatch(sub -> relatesLabels.contains(sub.label()));