use of com.scalar.db.storage.dynamo.bytes.KeyBytesEncoder in project scalardb by scalar-labs.
the class SelectStatementHandlerTest method handle_ScanOperationWithOrderingAndLimit_ShouldCallQueryWithProperRequest.
@Test
public void handle_ScanOperationWithOrderingAndLimit_ShouldCallQueryWithProperRequest() {
// Arrange
when(client.query(any(QueryRequest.class))).thenReturn(queryResponse);
when(queryResponse.items()).thenReturn(Collections.singletonList(new HashMap<>()));
Scan scan = prepareScan().withStart(new Key(ANY_NAME_2, ANY_TEXT_2)).withOrdering(new Scan.Ordering(ANY_NAME_2, ASC_ORDER)).withLimit(ANY_LIMIT);
String expectedCondition = DynamoOperation.PARTITION_KEY + " = " + DynamoOperation.PARTITION_KEY_ALIAS + " AND " + DynamoOperation.CLUSTERING_KEY + " >= " + DynamoOperation.START_CLUSTERING_KEY_ALIAS;
DynamoOperation dynamoOperation = new DynamoOperation(scan, metadata);
ByteBuffer partitionKey = dynamoOperation.getConcatenatedPartitionKey();
Map<String, AttributeValue> expectedBindMap = new HashMap<>();
expectedBindMap.put(DynamoOperation.PARTITION_KEY_ALIAS, AttributeValue.builder().b(SdkBytes.fromByteBuffer(partitionKey)).build());
expectedBindMap.put(DynamoOperation.START_CLUSTERING_KEY_ALIAS, AttributeValue.builder().b(SdkBytes.fromByteBuffer(new KeyBytesEncoder().encode(new Key(ANY_NAME_2, ANY_TEXT_2), metadata.getClusteringOrders()))).build());
// Act Assert
assertThatCode(() -> handler.handle(scan)).doesNotThrowAnyException();
// Assert
ArgumentCaptor<QueryRequest> captor = ArgumentCaptor.forClass(QueryRequest.class);
verify(client).query(captor.capture());
QueryRequest actualRequest = captor.getValue();
assertThat(actualRequest.keyConditionExpression()).isEqualTo(expectedCondition);
assertThat(actualRequest.expressionAttributeValues()).isEqualTo(expectedBindMap);
assertThat(actualRequest.scanIndexForward()).isNull();
assertThat(actualRequest.limit()).isEqualTo(ANY_LIMIT);
}
use of com.scalar.db.storage.dynamo.bytes.KeyBytesEncoder in project scalardb by scalar-labs.
the class SelectStatementHandlerTest method handle_ScanOperationWithFullMultipleClusteringKeysRangeExclusivelyWithClusteringOrder_ShouldCallQueryItemsWithProperQuery.
@Test
public void handle_ScanOperationWithFullMultipleClusteringKeysRangeExclusivelyWithClusteringOrder_ShouldCallQueryItemsWithProperQuery() {
// Arrange
when(metadata.getPartitionKeyNames()).thenReturn(new LinkedHashSet<>(Collections.singletonList(ANY_NAME_1)));
when(metadata.getClusteringKeyNames()).thenReturn(new LinkedHashSet<>(Arrays.asList(ANY_NAME_2, ANY_NAME_3)));
when(metadata.getClusteringOrder(ANY_NAME_2)).thenReturn(Order.ASC);
when(metadata.getClusteringOrder(ANY_NAME_3)).thenReturn(Order.DESC);
when(metadata.getClusteringOrders()).thenReturn(ImmutableMap.of(ANY_NAME_2, Order.ASC, ANY_NAME_3, Order.DESC));
when(client.query(any(QueryRequest.class))).thenReturn(queryResponse);
when(queryResponse.items()).thenReturn(Collections.singletonList(new HashMap<>()));
Scan scan = prepareScan().withStart(new Key(ANY_NAME_2, ANY_TEXT_2, ANY_NAME_3, ANY_TEXT_3), false).withEnd(new Key(ANY_NAME_2, ANY_TEXT_2, ANY_NAME_3, ANY_TEXT_4), false);
String expectedCondition = DynamoOperation.PARTITION_KEY + " = " + DynamoOperation.PARTITION_KEY_ALIAS + " AND " + DynamoOperation.CLUSTERING_KEY + " BETWEEN " + DynamoOperation.START_CLUSTERING_KEY_ALIAS + " AND " + DynamoOperation.END_CLUSTERING_KEY_ALIAS;
DynamoOperation dynamoOperation = new DynamoOperation(scan, metadata);
ByteBuffer partitionKey = dynamoOperation.getConcatenatedPartitionKey();
Map<String, AttributeValue> expectedBindMap = new HashMap<>();
expectedBindMap.put(DynamoOperation.PARTITION_KEY_ALIAS, AttributeValue.builder().b(SdkBytes.fromByteBuffer(partitionKey)).build());
expectedBindMap.put(DynamoOperation.START_CLUSTERING_KEY_ALIAS, AttributeValue.builder().b(SdkBytes.fromByteBuffer(BytesUtils.getClosestNextBytes(new KeyBytesEncoder().encode(new Key(ANY_NAME_2, ANY_TEXT_2, ANY_NAME_3, ANY_TEXT_4), metadata.getClusteringOrders())).get())).build());
expectedBindMap.put(DynamoOperation.END_CLUSTERING_KEY_ALIAS, AttributeValue.builder().b(SdkBytes.fromByteBuffer(BytesUtils.getClosestPreviousBytes(new KeyBytesEncoder().encode(new Key(ANY_NAME_2, ANY_TEXT_2, ANY_NAME_3, ANY_TEXT_3), metadata.getClusteringOrders())).get())).build());
// Act Assert
assertThatCode(() -> handler.handle(scan)).doesNotThrowAnyException();
// Assert
ArgumentCaptor<QueryRequest> captor = ArgumentCaptor.forClass(QueryRequest.class);
verify(client).query(captor.capture());
QueryRequest actualRequest = captor.getValue();
assertThat(actualRequest.keyConditionExpression()).isEqualTo(expectedCondition);
assertThat(actualRequest.expressionAttributeValues()).isEqualTo(expectedBindMap);
}
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