Examples with Get com.scalar.db.api.Get used on opensource projects

Example 51 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithConsensusCommitIntegrationTest method putAndCommit_GetsAndPutsForSameKeyButDifferentTablesGiven_ShouldCommitBoth.

@Test
public void putAndCommit_GetsAndPutsForSameKeyButDifferentTablesGiven_ShouldCommitBoth() throws TransactionException {
    // Arrange
    int expected = INITIAL_BALANCE;
    List<Put> puts1 = preparePuts(TABLE_1);
    List<Put> puts2 = preparePuts(TABLE_2);
    int from = 0;
    int to = NUM_TYPES;
    int anotherFrom = from;
    int anotherTo = to;
    puts1.get(from).withValue(BALANCE, expected);
    puts1.get(to).withValue(BALANCE, expected);
    // Act Assert
    GrpcTransaction transaction = manager.start();
    transaction.put(puts1.get(from));
    transaction.put(puts1.get(to));
    GrpcTransaction conflictingTransaction = manager.start();
    puts2.get(from).withValue(BALANCE, expected);
    puts2.get(to).withValue(BALANCE, expected);
    assertThatCode(() -> {
        conflictingTransaction.put(puts2.get(anotherFrom));
        conflictingTransaction.put(puts2.get(anotherTo));
        conflictingTransaction.commit();
    }).doesNotThrowAnyException();
    assertThatCode(transaction::commit).doesNotThrowAnyException();
    // Assert
    List<Get> gets1 = prepareGets(TABLE_1);
    List<Get> gets2 = prepareGets(TABLE_2);
    GrpcTransaction another = manager.start();
    Optional<Result> fromResult = another.get(gets1.get(from));
    assertThat(fromResult).isPresent();
    assertThat(getBalance(fromResult.get())).isEqualTo(expected);
    Optional<Result> toResult = another.get(gets1.get(to));
    assertThat(toResult).isPresent();
    assertThat(getBalance(toResult.get())).isEqualTo(expected);
    Optional<Result> anotherFromResult = another.get(gets2.get(anotherFrom));
    assertThat(anotherFromResult).isPresent();
    assertThat(getBalance(anotherFromResult.get())).isEqualTo(expected);
    Optional<Result> anotherToResult = another.get(gets2.get(anotherTo));
    assertThat(anotherToResult).isPresent();
    assertThat(getBalance(anotherToResult.get())).isEqualTo(expected);
    another.commit();
}

Example 52 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithConsensusCommitIntegrationTest method put_DeleteCalledBefore_ShouldThrowIllegalArgumentException.

@Test
public void put_DeleteCalledBefore_ShouldThrowIllegalArgumentException() throws TransactionException {
    // Arrange
    GrpcTransaction transaction = manager.start();
    transaction.put(preparePut(0, 0, TABLE_1).withValue(BALANCE, 1));
    transaction.commit();
    // Act
    GrpcTransaction transaction1 = manager.start();
    Get get = prepareGet(0, 0, TABLE_1);
    transaction1.get(get);
    transaction1.delete(prepareDelete(0, 0, TABLE_1));
    Throwable thrown = catchThrowable(() -> transaction1.put(preparePut(0, 0, TABLE_1).withValue(BALANCE, 2)));
    transaction1.abort();
    // Assert
    assertThat(thrown).isInstanceOf(IllegalArgumentException.class);
}

Example 53 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithConsensusCommitIntegrationTest method delete_PutCalledBefore_ShouldDelete.

@Test
public void delete_PutCalledBefore_ShouldDelete() throws TransactionException {
    // Arrange
    GrpcTransaction transaction = manager.start();
    transaction.put(preparePut(0, 0, TABLE_1).withValue(BALANCE, 1));
    transaction.commit();
    // Act
    GrpcTransaction transaction1 = manager.start();
    Get get = prepareGet(0, 0, TABLE_1);
    Optional<Result> resultBefore = transaction1.get(get);
    transaction1.put(preparePut(0, 0, TABLE_1).withValue(BALANCE, 2));
    transaction1.delete(prepareDelete(0, 0, TABLE_1));
    assertThatCode(transaction1::commit).doesNotThrowAnyException();
    // Assert
    GrpcTransaction transaction2 = manager.start();
    Optional<Result> resultAfter = transaction2.get(get);
    transaction2.commit();
    assertThat(resultBefore.isPresent()).isTrue();
    assertThat(resultAfter.isPresent()).isFalse();
}

Example 54 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithConsensusCommitIntegrationTest method commit_WriteSkewOnExistingRecordsWithSnapshot_ShouldProduceNonSerializableResult.

private void commit_WriteSkewOnExistingRecordsWithSnapshot_ShouldProduceNonSerializableResult(String table1, String table2) throws TransactionException {
    // Arrange
    List<Put> puts = Arrays.asList(preparePut(0, 0, table1).withValue(BALANCE, 1), preparePut(0, 1, table2).withValue(BALANCE, 1));
    GrpcTransaction transaction = manager.start();
    transaction.put(puts);
    transaction.commit();
    // Act
    GrpcTransaction transaction1 = manager.start();
    GrpcTransaction transaction2 = manager.start();
    Get get1_1 = prepareGet(0, 1, table2);
    Optional<Result> result1 = transaction1.get(get1_1);
    assertThat(result1).isPresent();
    int current1 = getBalance(result1.get());
    Get get1_2 = prepareGet(0, 0, table1);
    transaction1.get(get1_2);
    Get get2_1 = prepareGet(0, 0, table1);
    Optional<Result> result2 = transaction2.get(get2_1);
    assertThat(result2).isPresent();
    int current2 = getBalance(result2.get());
    Get get2_2 = prepareGet(0, 1, table2);
    transaction2.get(get2_2);
    Put put1 = preparePut(0, 0, table1).withValue(BALANCE, current1 + 1);
    transaction1.put(put1);
    Put put2 = preparePut(0, 1, table2).withValue(BALANCE, current2 + 1);
    transaction2.put(put2);
    transaction1.commit();
    transaction2.commit();
    // Assert
    transaction = manager.start();
    result1 = transaction.get(get1_1);
    result2 = transaction.get(get2_1);
    transaction.commit();
    // the results can not be produced by executing the transactions serially
    assertThat(result1).isPresent();
    assertThat(getBalance(result1.get())).isEqualTo(2);
    assertThat(result2).isPresent();
    assertThat(getBalance(result2.get())).isEqualTo(2);
}

Example 55 with Get

use of com.scalar.db.api.Get in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithConsensusCommitWithExtraReadIntegrationTest method commit_WriteSkewOnNonExistingRecordsWithSerializableWithExtraRead_OneShouldCommitTheOtherShouldThrowCommitConflictException.

private void commit_WriteSkewOnNonExistingRecordsWithSerializableWithExtraRead_OneShouldCommitTheOtherShouldThrowCommitConflictException(String table1, String table2) throws TransactionException {
    // Arrange
    // no records
    // Act
    GrpcTransaction transaction1 = manager.start();
    GrpcTransaction transaction2 = manager.start();
    Get get1_1 = prepareGet(0, 1, table2);
    Optional<Result> result1 = transaction1.get(get1_1);
    Get get1_2 = prepareGet(0, 0, table1);
    transaction1.get(get1_2);
    int current1 = 0;
    Get get2_1 = prepareGet(0, 0, table1);
    Optional<Result> result2 = transaction2.get(get2_1);
    Get get2_2 = prepareGet(0, 1, table2);
    transaction2.get(get2_2);
    int current2 = 0;
    Put put1 = preparePut(0, 0, table1).withValue(BALANCE, current1 + 1);
    transaction1.put(put1);
    Put put2 = preparePut(0, 1, table2).withValue(BALANCE, current2 + 1);
    transaction2.put(put2);
    Throwable thrown1 = catchThrowable(transaction1::commit);
    Throwable thrown2 = catchThrowable(transaction2::commit);
    // Assert
    assertThat(result1.isPresent()).isFalse();
    assertThat(result2.isPresent()).isFalse();
    GrpcTransaction transaction = manager.start();
    result1 = transaction.get(get1_1);
    result2 = transaction.get(get2_1);
    transaction.commit();
    assertThat(result1.isPresent()).isFalse();
    assertThat(result2.isPresent()).isTrue();
    assertThat(getBalance(result2.get())).isEqualTo(1);
    assertThat(thrown1).doesNotThrowAnyException();
    assertThat(thrown2).isInstanceOf(CommitConflictException.class);
}