Examples with Type ai.grakn.concept.Type used on opensource projects

Example 31 with Type

use of ai.grakn.concept.Type in project grakn by graknlabs.

the class RelationshipAtom method inferPossibleRelationConfigurations.

/**
 * @return a map of relationships and corresponding roles that could be played by this atom
 */
private Multimap<RelationshipType, Role> inferPossibleRelationConfigurations(Answer sub) {
    Set<Role> roles = getExplicitRoles().filter(r -> !Schema.MetaSchema.isMetaLabel(r.getLabel())).collect(toSet());
    Map<Var, Type> varTypeMap = getParentQuery().getVarTypeMap(sub);
    Set<Type> types = getRolePlayers().stream().filter(varTypeMap::containsKey).map(varTypeMap::get).collect(toSet());
    if (roles.isEmpty() && types.isEmpty()) {
        RelationshipType metaRelationType = tx().admin().getMetaRelationType();
        Multimap<RelationshipType, Role> compatibleTypes = HashMultimap.create();
        metaRelationType.subs().filter(rt -> !rt.equals(metaRelationType)).forEach(rt -> compatibleTypes.putAll(rt, rt.relates().collect(toSet())));
        return compatibleTypes;
    }
    // intersect relation types from roles and types
    Multimap<RelationshipType, Role> compatibleTypes;
    Multimap<RelationshipType, Role> compatibleTypesFromRoles = compatibleRelationTypesWithRoles(roles, new RoleConverter());
    Multimap<RelationshipType, Role> compatibleTypesFromTypes = compatibleRelationTypesWithRoles(types, new TypeConverter());
    if (roles.isEmpty()) {
        compatibleTypes = compatibleTypesFromTypes;
    } else // no types from roles -> roles correspond to mutually exclusive relations
    if (compatibleTypesFromRoles.isEmpty() || types.isEmpty()) {
        compatibleTypes = compatibleTypesFromRoles;
    } else {
        compatibleTypes = multimapIntersection(compatibleTypesFromTypes, compatibleTypesFromRoles);
    }
    return compatibleTypes;
}

Example 32 with Type

use of ai.grakn.concept.Type in project grakn by graknlabs.

the class RelationshipAtom method inferRoles.

/**
 * attempt to infer role types of this relation and return a fresh relationship with inferred role types
 * @return either this if nothing/no roles can be inferred or fresh relation with inferred role types
 */
private RelationshipAtom inferRoles(Answer sub) {
    // return if all roles known and non-meta
    List<Role> explicitRoles = getExplicitRoles().collect(Collectors.toList());
    Map<Var, Type> varTypeMap = getParentQuery().getVarTypeMap(sub);
    boolean allRolesMeta = explicitRoles.stream().allMatch(role -> Schema.MetaSchema.isMetaLabel(role.getLabel()));
    boolean roleRecomputationViable = allRolesMeta && (!sub.isEmpty() || !Sets.intersection(varTypeMap.keySet(), getRolePlayers()).isEmpty());
    if (explicitRoles.size() == getRelationPlayers().size() && !roleRecomputationViable)
        return this;
    GraknTx graph = getParentQuery().tx();
    Role metaRole = graph.admin().getMetaRole();
    List<RelationPlayer> allocatedRelationPlayers = new ArrayList<>();
    RelationshipType relType = getSchemaConcept() != null ? getSchemaConcept().asRelationshipType() : null;
    // explicit role types from castings
    List<RelationPlayer> inferredRelationPlayers = new ArrayList<>();
    getRelationPlayers().forEach(rp -> {
        Var varName = rp.getRolePlayer().var();
        VarPatternAdmin rolePattern = rp.getRole().orElse(null);
        if (rolePattern != null) {
            Label roleLabel = rolePattern.getTypeLabel().orElse(null);
            // allocate if variable role or if label non meta
            if (roleLabel == null || !Schema.MetaSchema.isMetaLabel(roleLabel)) {
                inferredRelationPlayers.add(RelationPlayer.of(rolePattern, varName.admin()));
                allocatedRelationPlayers.add(rp);
            }
        }
    });
    // remaining roles
    // role types can repeat so no matter what has been allocated still the full spectrum of possibilities is present
    // TODO make restrictions based on cardinality constraints
    Set<Role> possibleRoles = relType != null ? relType.relates().collect(toSet()) : inferPossibleTypes(sub).stream().filter(Concept::isRelationshipType).map(Concept::asRelationshipType).flatMap(RelationshipType::relates).collect(toSet());
    // possible role types for each casting based on its type
    Map<RelationPlayer, Set<Role>> mappings = new HashMap<>();
    getRelationPlayers().stream().filter(rp -> !allocatedRelationPlayers.contains(rp)).forEach(rp -> {
        Var varName = rp.getRolePlayer().var();
        Type type = varTypeMap.get(varName);
        mappings.put(rp, top(type != null ? compatibleRoles(type, possibleRoles) : possibleRoles));
    });
    // allocate all unambiguous mappings
    mappings.entrySet().stream().filter(entry -> entry.getValue().size() == 1).forEach(entry -> {
        RelationPlayer rp = entry.getKey();
        Var varName = rp.getRolePlayer().var();
        Role role = Iterables.getOnlyElement(entry.getValue());
        VarPatternAdmin rolePattern = Graql.var().label(role.getLabel()).admin();
        inferredRelationPlayers.add(RelationPlayer.of(rolePattern, varName.admin()));
        allocatedRelationPlayers.add(rp);
    });
    // fill in unallocated roles with metarole
    getRelationPlayers().stream().filter(rp -> !allocatedRelationPlayers.contains(rp)).forEach(rp -> {
        Var varName = rp.getRolePlayer().var();
        VarPatternAdmin rolePattern = rp.getRole().orElse(null);
        rolePattern = rolePattern != null ? rolePattern.var().label(metaRole.getLabel()).admin() : Graql.var().label(metaRole.getLabel()).admin();
        inferredRelationPlayers.add(RelationPlayer.of(rolePattern, varName.admin()));
    });
    VarPattern relationPattern = relationPattern(getVarName(), inferredRelationPlayers);
    VarPatternAdmin newPattern = (isDirect() ? relationPattern.directIsa(getPredicateVariable()) : relationPattern.isa(getPredicateVariable())).admin();
    return create(newPattern, getPredicateVariable(), getTypeId(), getParentQuery());
}

Example 33 with Type

use of ai.grakn.concept.Type in project grakn by graknlabs.

the class ResourceAtom method validateOntologically.

@Override
public Set<String> validateOntologically() {
    SchemaConcept type = getSchemaConcept();
    Set<String> errors = new HashSet<>();
    if (type == null)
        return errors;
    if (!type.isAttributeType()) {
        errors.add(ErrorMessage.VALIDATION_RULE_INVALID_RESOURCE_TYPE.getMessage(type.getLabel()));
        return errors;
    }
    Type ownerType = getParentQuery().getVarTypeMap().get(getVarName());
    if (ownerType != null && ownerType.attributes().noneMatch(rt -> rt.equals(type.asAttributeType()))) {
        errors.add(ErrorMessage.VALIDATION_RULE_RESOURCE_OWNER_CANNOT_HAVE_RESOURCE.getMessage(type.getLabel(), ownerType.getLabel()));
    }
    return errors;
}

Example 34 with Type

use of ai.grakn.concept.Type in project grakn by graknlabs.

the class EntityTypeTest method whenSettingMetaTypeToAbstract_Throw.

@Test
public void whenSettingMetaTypeToAbstract_Throw() {
    Type meta = tx.getMetaEntityType();
    expectedException.expect(GraknTxOperationException.class);
    expectedException.expectMessage(GraknTxOperationException.metaTypeImmutable(meta.getLabel()).getMessage());
    meta.setAbstract(true);
}

Example 35 with Type

use of ai.grakn.concept.Type in project grakn by graknlabs.

the class EntityTypeTest method whenGettingTheSuperSet_ReturnAllOfItsSuperTypes.

@Test
public void whenGettingTheSuperSet_ReturnAllOfItsSuperTypes() throws Exception {
    EntityType entityType = tx.admin().getMetaEntityType();
    EntityType c1 = tx.putEntityType("c1");
    EntityType c2 = tx.putEntityType("c2").sup(c1);
    EntityType c3 = tx.putEntityType("c3").sup(c2);
    EntityType c4 = tx.putEntityType("c4").sup(c1);
    Set<Type> c1SuperTypes = EntityTypeImpl.from(c1).sups().collect(toSet());
    Set<Type> c2SuperTypes = EntityTypeImpl.from(c2).sups().collect(toSet());
    Set<Type> c3SuperTypes = EntityTypeImpl.from(c3).sups().collect(toSet());
    Set<Type> c4SuperTypes = EntityTypeImpl.from(c4).sups().collect(toSet());
    assertThat(c1SuperTypes, containsInAnyOrder(entityType, c1));
    assertThat(c2SuperTypes, containsInAnyOrder(entityType, c2, c1));
    assertThat(c3SuperTypes, containsInAnyOrder(entityType, c3, c2, c1));
    assertThat(c4SuperTypes, containsInAnyOrder(entityType, c4, c1));
}