Examples with GrpcTwoPhaseCommitTransaction com.scalar.db.transaction.rpc.GrpcTwoPhaseCommitTransaction used on opensource projects

Example 41 with GrpcTwoPhaseCommitTransaction

use of com.scalar.db.transaction.rpc.GrpcTwoPhaseCommitTransaction in project scalardb by scalar-labs.

the class TwoPhaseCommitTransactionServiceWithTwoPhaseConsensusCommitWithExtraReadIntegrationTest method commit_WriteSkewOnNonExistingRecordsWithSerializableWithExtraRead_OneShouldCommitTheOtherShouldThrowValidationException.

@Test
public void commit_WriteSkewOnNonExistingRecordsWithSerializableWithExtraRead_OneShouldCommitTheOtherShouldThrowValidationException() throws TransactionException {
    // Arrange
    // Act
    GrpcTwoPhaseCommitTransaction tx1Sub1 = manager.start();
    GrpcTwoPhaseCommitTransaction tx1Sub2 = manager.join(tx1Sub1.getId());
    Optional<Result> result = tx1Sub2.get(prepareGet(1, 0, TABLE_2));
    assertThat(result).isNotPresent();
    int current1 = 0;
    tx1Sub1.get(prepareGet(0, 0, TABLE_1));
    tx1Sub1.put(preparePut(0, 0, TABLE_1).withValue(BALANCE, current1 + 1));
    GrpcTwoPhaseCommitTransaction tx2Sub1 = manager.start();
    GrpcTwoPhaseCommitTransaction tx2Sub2 = manager.join(tx2Sub1.getId());
    result = tx2Sub1.get(prepareGet(0, 0, TABLE_1));
    assertThat(result).isNotPresent();
    int current2 = 0;
    tx2Sub2.get(prepareGet(1, 0, TABLE_2));
    tx2Sub2.put(preparePut(1, 0, TABLE_2).withValue(BALANCE, current2 + 1));
    tx1Sub1.prepare();
    tx1Sub2.prepare();
    tx1Sub1.validate();
    tx1Sub2.validate();
    tx1Sub1.commit();
    tx1Sub2.commit();
    tx2Sub1.prepare();
    tx2Sub2.prepare();
    assertThatThrownBy(() -> {
        tx2Sub1.validate();
        tx2Sub2.validate();
    }).isInstanceOf(ValidationException.class);
    tx2Sub1.rollback();
    tx2Sub2.rollback();
    // Assert
    GrpcTwoPhaseCommitTransaction transaction = manager.start();
    result = transaction.get(prepareGet(0, 0, TABLE_1));
    assertThat(result).isPresent();
    assertThat(getBalance(result.get())).isEqualTo(current1 + 1);
    result = transaction.get(prepareGet(1, 0, TABLE_2));
    assertThat(result).isNotPresent();
    transaction.prepare();
    transaction.validate();
    transaction.commit();
}