Examples with CoreSession com.vaticle.typedb.core.database.CoreSession used on opensource projects

Example 36 with CoreSession

use of com.vaticle.typedb.core.database.CoreSession in project grakn by graknlabs.

the class ExplanationTest method test_nested_explanations.

@Test
public void test_nested_explanations() {
    try (CoreSession session = databaseMgr.session(database, Arguments.Session.Type.SCHEMA)) {
        try (CoreTransaction txn = singleThreadElgTransaction(session, Arguments.Transaction.Type.WRITE)) {
            ConceptManager conceptMgr = txn.concepts();
            LogicManager logicMgr = txn.logic();
            EntityType person = conceptMgr.putEntityType("person");
            AttributeType name = conceptMgr.putAttributeType("name", AttributeType.ValueType.STRING);
            AttributeType gender = conceptMgr.putAttributeType("gender", AttributeType.ValueType.STRING);
            EntityType city = conceptMgr.putEntityType("city");
            person.setOwns(name);
            person.setOwns(gender);
            RelationType friendship = conceptMgr.putRelationType("friendship");
            friendship.setRelates("friend");
            RelationType marriage = conceptMgr.putRelationType("marriage");
            marriage.setRelates("husband");
            marriage.setRelates("wife");
            RelationType wedding = conceptMgr.putRelationType("wedding");
            wedding.setRelates("male");
            wedding.setRelates("female");
            wedding.setRelates("location");
            person.setPlays(friendship.getRelates("friend"));
            person.setPlays(marriage.getRelates("husband"));
            person.setPlays(marriage.getRelates("wife"));
            person.setPlays(wedding.getRelates("male"));
            person.setPlays(wedding.getRelates("female"));
            city.setPlays(wedding.getRelates("location"));
            logicMgr.putRule("wedding-implies-marriage", TypeQL.parsePattern("{ $x isa person, has gender \"male\"; $y isa person, has gender \"female\"; " + "$l isa city; (male: $x, female: $y, location: $l) isa wedding; }").asConjunction(), TypeQL.parseVariable("(husband: $x, wife: $y) isa marriage").asThing());
            logicMgr.putRule("marriage-is-friendship", TypeQL.parsePattern("{ $a isa person; $b isa person; (husband: $a, wife: $b) isa marriage; }").asConjunction(), TypeQL.parseVariable("(friend: $a, friend: $b) isa friendship").asThing());
            txn.commit();
        }
    }
    try (CoreSession session = databaseMgr.session(database, Arguments.Session.Type.DATA)) {
        try (CoreTransaction txn = singleThreadElgTransaction(session, Arguments.Transaction.Type.WRITE)) {
            txn.query().insert(TypeQL.parseQuery("insert " + "(male: $x, female: $y, location: $l) isa wedding;" + "$x isa person, has gender \"male\";" + "$y isa person, has gender \"female\";" + "$l isa city;").asInsert());
            txn.commit();
        }
        try (CoreTransaction txn = singleThreadElgTransaction(session, Arguments.Transaction.Type.READ, (new Options.Transaction().explain(true)))) {
            List<ConceptMap> ans = txn.query().match(TypeQL.parseQuery("match ($x) isa friendship;").asMatch()).toList();
            assertEquals(2, ans.size());
            assertFalse(ans.get(0).explainables().isEmpty());
            List<Explanation> explanations = assertSingleExplainableExplanations(ans.get(0), 1, 1, 1, txn);
            Explanation explanation = explanations.get(0);
            assertEquals(txn.logic().getRule("marriage-is-friendship"), explanation.rule());
            assertEquals(2, explanation.variableMapping().size());
            assertEquals(3, explanation.conclusionAnswer().concepts().size());
            ConceptMap marriageIsFriendshipAnswer = explanation.conditionAnswer();
            assertEquals(1, marriageIsFriendshipAnswer.explainables().iterator().count());
            assertSingleExplainableExplanations(marriageIsFriendshipAnswer, 1, 1, 1, txn);
        }
    }
}

Example 37 with CoreSession

use of com.vaticle.typedb.core.database.CoreSession in project grakn by graknlabs.

the class RuleTest method rule_has_variable_materialises_when_missing.

@Test
public void rule_has_variable_materialises_when_missing() throws IOException {
    Util.resetDirectory(dataDir);
    try (CoreDatabaseManager databaseMgr = CoreDatabaseManager.open(options)) {
        databaseMgr.create(database);
        try (CoreSession session = databaseMgr.session(database, Arguments.Session.Type.SCHEMA)) {
            try (CoreTransaction txn = session.transaction(Arguments.Transaction.Type.WRITE)) {
                ConceptManager conceptMgr = txn.concepts();
                EntityType milk = conceptMgr.putEntityType("milk");
                AttributeType ageInDays = conceptMgr.putAttributeType("age-in-days", AttributeType.ValueType.LONG);
                AttributeType isStillGood = conceptMgr.putAttributeType("is-still-good", AttributeType.ValueType.BOOLEAN);
                milk.setOwns(ageInDays);
                milk.setOwns(isStillGood);
                txn.logic().putRule("old-milk-is-not-good", TypeQL.parsePattern("{ $x isa milk; $a 10 isa age-in-days; }").asConjunction(), TypeQL.parseVariable("$x has $a").asThing());
                txn.commit();
            }
        }
        try (CoreSession session = databaseMgr.session(database, Arguments.Session.Type.DATA)) {
            try (CoreTransaction txn = session.transaction(Arguments.Transaction.Type.WRITE)) {
                ConceptManager conceptMgr = txn.concepts();
                EntityType milk = conceptMgr.getEntityType("milk");
                AttributeType ageInDays = conceptMgr.getAttributeType("age-in-days");
                Entity milkInst = milk.create();
                Attribute.Long ageInDays10 = ageInDays.asLong().put(10L);
                Rule rule = txn.logic().getRule("old-milk-is-not-good");
                ConceptMap whenAnswer = new ConceptMap(map(pair(Identifier.Variable.name("x"), milkInst), pair(Identifier.Variable.name("a"), ageInDays10)));
                List<Map<Identifier.Variable, Concept>> materialisations = rule.conclusion().materialise(whenAnswer, txn.traversal(), conceptMgr).toList();
                assertEquals(1, materialisations.size());
                assertEquals(2, materialisations.get(0).size());
                List<? extends Attribute> ageInDaysOwned = milkInst.getHas(ageInDays).toList();
                assertEquals(1, ageInDaysOwned.size());
                assertEquals(ageInDays10, ageInDaysOwned.get(0));
            }
        }
    }
}

Example 38 with CoreSession

use of com.vaticle.typedb.core.database.CoreSession in project grakn by graknlabs.

the class RuleTest method new_type_updates_rule_conclusion_index.

@Test
public void new_type_updates_rule_conclusion_index() throws IOException {
    Util.resetDirectory(dataDir);
    try (CoreDatabaseManager databaseMgr = CoreDatabaseManager.open(options)) {
        databaseMgr.create(database);
        try (CoreSession session = databaseMgr.session(database, Arguments.Session.Type.SCHEMA)) {
            try (CoreTransaction txn = session.transaction(Arguments.Transaction.Type.WRITE)) {
                ConceptManager conceptMgr = txn.concepts();
                LogicManager logicMgr = txn.logic();
                EntityType person = conceptMgr.putEntityType("person");
                RelationType marriage = conceptMgr.putRelationType("marriage");
                AttributeType name = conceptMgr.putAttributeType("name", AttributeType.ValueType.STRING);
                name.setAbstract();
                AttributeType firstName = conceptMgr.putAttributeType("first-name", AttributeType.ValueType.STRING);
                firstName.setSupertype(name);
                marriage.setRelates("spouse");
                person.setPlays(marriage.getRelates("spouse"));
                person.setOwns(firstName);
                Rule marriageSameName = logicMgr.putRule("marriage-same-name", TypeQL.parsePattern("{ $x isa person, has name $a; $y isa person; (spouse:$x, spouse: $y) isa marriage; }").asConjunction(), TypeQL.parseVariable("$y has $a").asThing());
                Conjunction sameName = marriageSameName.then();
                Variable nameAttr = getVariable(sameName.variables(), Identifier.Variable.name("a"));
                assertEquals(set(Label.of("first-name")), nameAttr.inferredTypes());
                txn.commit();
            }
            // add a new subtype of an attribute in a rule
            try (CoreTransaction txn = session.transaction(Arguments.Transaction.Type.WRITE)) {
                ConceptManager conceptMgr = txn.concepts();
                AttributeType lastName = conceptMgr.putAttributeType("last-name", AttributeType.ValueType.STRING);
                lastName.setSupertype(conceptMgr.getAttributeType("name"));
                conceptMgr.getEntityType("person").setOwns(lastName);
                txn.commit();
            }
            // check the new attribute type is re-indexed in the conclusions index
            try (CoreTransaction txn = session.transaction(Arguments.Transaction.Type.READ)) {
                LogicManager logicMgr = txn.logic();
                Rule marriageSameName = logicMgr.getRule("marriage-same-name");
                assertEquals(set(marriageSameName), logicMgr.rulesConcludingHas(Label.of("last-name")).toSet());
            }
        }
    }
}

Example 39 with CoreSession

use of com.vaticle.typedb.core.database.CoreSession in project grakn by graknlabs.

the class RuleTest method rule_when_that_cannot_be_satisfied_throws_an_error.

@Test
public void rule_when_that_cannot_be_satisfied_throws_an_error() throws IOException {
    Util.resetDirectory(dataDir);
    try (CoreDatabaseManager databaseMgr = CoreDatabaseManager.open(options)) {
        databaseMgr.create(database);
        try (CoreSession session = databaseMgr.session(database, Arguments.Session.Type.SCHEMA)) {
            try (CoreTransaction txn = session.transaction(Arguments.Transaction.Type.WRITE)) {
                final ConceptManager conceptMgr = txn.concepts();
                final EntityType person = conceptMgr.putEntityType("person");
                final EntityType dog = conceptMgr.putEntityType("dog");
                final AttributeType name = conceptMgr.putAttributeType("name", AttributeType.ValueType.STRING);
                person.setOwns(name);
                // a when using an illegal comparator
                assertThrowsTypeDBException(() -> txn.logic().putRule("two-unique-dogs-exist-called-fido", TypeQL.parsePattern("{$x isa dog; $y isa dog; $x != $y;}").asConjunction(), TypeQL.parseVariable("$x has name 'fido'").asThing()), RULE_WHEN_CANNOT_BE_SATISFIED.code());
            }
        }
    }
}

Example 40 with CoreSession

use of com.vaticle.typedb.core.database.CoreSession in project grakn by graknlabs.

the class RuleTest method rule_indexes_created_and_readable.

// ------------ Rule conclusion indexing ------------
@Test
public void rule_indexes_created_and_readable() throws IOException {
    Util.resetDirectory(dataDir);
    try (CoreDatabaseManager databaseMgr = CoreDatabaseManager.open(options)) {
        databaseMgr.create(database);
        try (CoreSession session = databaseMgr.session(database, Arguments.Session.Type.SCHEMA)) {
            try (CoreTransaction txn = session.transaction(Arguments.Transaction.Type.WRITE)) {
                ConceptManager conceptMgr = txn.concepts();
                LogicManager logicMgr = txn.logic();
                EntityType person = conceptMgr.putEntityType("person");
                RelationType friendship = conceptMgr.putRelationType("friendship");
                friendship.setRelates("friend");
                RelationType marriage = conceptMgr.putRelationType("marriage");
                AttributeType name = conceptMgr.putAttributeType("name", AttributeType.ValueType.STRING);
                AttributeType age = conceptMgr.putAttributeType("age", AttributeType.ValueType.LONG);
                marriage.setRelates("spouse");
                person.setPlays(friendship.getRelates("friend"));
                person.setPlays(marriage.getRelates("spouse"));
                person.setOwns(name);
                person.setOwns(age);
                Rule marriageFriendsRule = logicMgr.putRule("marriage-is-friendship", TypeQL.parsePattern("{ $x isa person; $y isa person; (spouse: $x, spouse: $y) isa marriage; }").asConjunction(), TypeQL.parseVariable("(friend: $x, friend: $y) isa friendship").asThing());
                Conjunction marriageFriendsThen = marriageFriendsRule.then();
                Variable marriageFriendsRelation = getVariable(marriageFriendsThen.variables(), Identifier.Variable.anon(0));
                assertEquals(set(Label.of("friendship")), marriageFriendsRelation.inferredTypes());
                Rule allFriendsRule = logicMgr.putRule("all-people-are-friends", TypeQL.parsePattern("{ $x isa person; $y isa person; $t type friendship; }").asConjunction(), TypeQL.parseVariable("(friend: $x, friend: $y) isa $t").asThing());
                Conjunction allFriendsThen = allFriendsRule.then();
                Variable allFriendsRelation = getVariable(allFriendsThen.variables(), Identifier.Variable.anon(0));
                assertEquals(set(Label.of("friendship")), allFriendsRelation.inferredTypes());
                Rule marriageSameName = logicMgr.putRule("marriage-same-name", TypeQL.parsePattern("{ $x isa person, has name $a; $y isa person; (spouse:$x, spouse: $y) isa marriage; }").asConjunction(), TypeQL.parseVariable("$y has $a").asThing());
                Conjunction sameName = marriageSameName.then();
                Variable nameAttr = getVariable(sameName.variables(), Identifier.Variable.name("a"));
                assertEquals(set(Label.of("name")), nameAttr.inferredTypes());
                Rule peopleHaveAge10 = logicMgr.putRule("people-have-age-10", TypeQL.parsePattern("{ $x isa person; }").asConjunction(), TypeQL.parseVariable("$x has age 10").asThing());
                Conjunction age10 = peopleHaveAge10.then();
                Variable ageAttr = getVariable(age10.variables(), Identifier.Variable.anon(0));
                assertEquals(set(Label.of("age")), ageAttr.inferredTypes());
                txn.commit();
            }
        }
        try (CoreSession session = databaseMgr.session(database, Arguments.Session.Type.DATA)) {
            try (CoreTransaction txn = session.transaction(Arguments.Transaction.Type.READ)) {
                LogicManager logicMgr = txn.logic();
                Set<Rule> friendshipRules = logicMgr.rulesConcluding(Label.of("friendship")).toSet();
                Rule marriageFriendsRule = txn.logic().getRule("marriage-is-friendship");
                Rule allFriendsRule = txn.logic().getRule("all-people-are-friends");
                assertEquals(set(marriageFriendsRule, allFriendsRule), friendshipRules);
                Set<Rule> hasNameRules = logicMgr.rulesConcludingHas(Label.of("name")).toSet();
                Rule marriageSameName = txn.logic().getRule("marriage-same-name");
                assertEquals(set(marriageSameName), hasNameRules);
                Set<Rule> hasAgeRules = logicMgr.rulesConcludingHas(Label.of("age")).toSet();
                Set<Rule> ageRules = logicMgr.rulesConcluding(Label.of("age")).toSet();
                Rule peopleHaveAge10 = txn.logic().getRule("people-have-age-10");
                assertEquals(set(peopleHaveAge10), hasAgeRules);
                assertEquals(set(peopleHaveAge10), ageRules);
            }
        }
    }
}