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

Example 56 with Get

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

the class DistributedTransactionServiceWithConsensusCommitWithExtraReadIntegrationTest method commit_WriteSkewOnExistingRecordsWithSerializableWithExtraRead_OneShouldCommitTheOtherShouldThrowCommitConflictException.

private void commit_WriteSkewOnExistingRecordsWithSerializableWithExtraRead_OneShouldCommitTheOtherShouldThrowCommitConflictException(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();
    Throwable thrown = catchThrowable(transaction2::commit);
    // Assert
    transaction = manager.start();
    result1 = transaction.get(get1_1);
    result2 = transaction.get(get2_1);
    transaction.commit();
    assertThat(result1).isPresent();
    assertThat(getBalance(result1.get())).isEqualTo(1);
    assertThat(result2).isPresent();
    assertThat(getBalance(result2.get())).isEqualTo(2);
    assertThat(thrown).isInstanceOf(CommitConflictException.class);
}

Example 57 with Get

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

the class TwoPhaseCommitTransactionServiceWithTwoPhaseConsensusCommitIntegrationTest method put_DeleteCalledBefore_ShouldThrowIllegalArgumentException.

@Test
public void put_DeleteCalledBefore_ShouldThrowIllegalArgumentException() throws TransactionException {
    // Arrange
    GrpcTwoPhaseCommitTransaction transaction = manager.start();
    transaction.put(preparePut(0, 0, TABLE_1).withValue(BALANCE, 1));
    transaction.prepare();
    transaction.commit();
    // Act
    GrpcTwoPhaseCommitTransaction 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.rollback();
    // Assert
    assertThat(thrown).isInstanceOf(IllegalArgumentException.class);
}

Example 58 with Get

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

the class DistributedTransactionServiceWithConsensusCommitIntegrationTest method get_GetGivenForCommittedRecord_ShouldReturnRecord.

@Test
public void get_GetGivenForCommittedRecord_ShouldReturnRecord() throws TransactionException {
    // Arrange
    populateRecords(TABLE_1);
    GrpcTransaction transaction = manager.start();
    Get get = prepareGet(0, 0, TABLE_1);
    // Act
    Optional<Result> result = transaction.get(get);
    transaction.commit();
    // Assert
    assertThat(result.isPresent()).isTrue();
}

Example 59 with Get

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

the class DistributedTransactionServiceWithConsensusCommitIntegrationTest method commit_NonConflictingPutsGivenForExisting_ShouldCommitBoth.

private void commit_NonConflictingPutsGivenForExisting_ShouldCommitBoth(String table1, String table2) throws TransactionException {
    // Arrange
    boolean differentTables = !table1.equals(table2);
    int amount1 = 100;
    int amount2 = 200;
    int from = 0;
    int to = NUM_TYPES;
    int anotherFrom = NUM_TYPES * 2;
    int anotherTo = NUM_TYPES * 3;
    populateRecords(table1);
    if (differentTables) {
        populateRecords(table2);
    }
    // Act
    GrpcTransaction transaction = prepareTransfer(from, table1, to, table2, amount1);
    assertThatCode(() -> prepareTransfer(anotherFrom, table2, anotherTo, table1, amount2).commit()).doesNotThrowAnyException();
    assertThatCode(transaction::commit).doesNotThrowAnyException();
    // Assert
    List<Get> gets1 = prepareGets(table1);
    List<Get> gets2 = prepareGets(table2);
    GrpcTransaction another = manager.start();
    Optional<Result> fromResult = another.get(gets1.get(from));
    assertThat(fromResult).isPresent();
    assertThat(getBalance(fromResult.get())).isEqualTo(INITIAL_BALANCE - amount1);
    Optional<Result> toResult = another.get(gets2.get(to));
    assertThat(toResult).isPresent();
    assertThat(getBalance(toResult.get())).isEqualTo(INITIAL_BALANCE + amount1);
    Optional<Result> anotherFromResult = another.get(gets2.get(anotherFrom));
    assertThat(anotherFromResult).isPresent();
    assertThat(getBalance(anotherFromResult.get())).isEqualTo(INITIAL_BALANCE - amount2);
    Optional<Result> anotherToResult = another.get(gets1.get(anotherTo));
    assertThat(anotherToResult).isPresent();
    assertThat(getBalance(anotherToResult.get())).isEqualTo(INITIAL_BALANCE + amount2);
    another.commit();
}

Example 60 with Get

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

the class DistributedTransactionServiceWithConsensusCommitIntegrationTest method putAndCommit_PutGivenForNonExisting_ShouldCreateRecord.

@Test
public void putAndCommit_PutGivenForNonExisting_ShouldCreateRecord() throws TransactionException {
    // Arrange
    int expected = INITIAL_BALANCE;
    Put put = preparePut(0, 0, TABLE_1).withValue(BALANCE, expected);
    GrpcTransaction transaction = manager.start();
    // Act
    transaction.put(put);
    transaction.commit();
    // Assert
    Get get = prepareGet(0, 0, TABLE_1);
    GrpcTransaction another = manager.start();
    Optional<Result> result = another.get(get);
    another.commit();
    assertThat(result).isPresent();
    assertThat(getBalance(result.get())).isEqualTo(expected);
}