public AsyncEnumerable(
RedisDatabase redisDatabase,
RedisQuery redisQuery)
{
_redisDatabase = redisDatabase;
_redisQuery = redisQuery;
}
public async Task QueryBy_Complex()
{
//Arrange
DateTime dateTime = new DateTime(2021, 1, 5, 21, 10, 23);
IConnectionMultiplexer connectionMultiplexer = FakesFactory.CreateConnectionMultiplexerFake();
StockRepository stubStockRepository = FakesFactory.CreateStockRepositoryFake(connectionMultiplexer);
StockEntity teslaEntity = new StockEntity("TESLA", StockSector.Technology, 229.00, 12.5);
teslaEntity.IsActive = false;
teslaEntity.CreatedDateTime = dateTime;
await stubStockRepository.AddAsync(teslaEntity);
StockEntity microsoftEntity = new StockEntity("MICROSOFT", StockSector.Technology, 204.00, 9.5);
microsoftEntity.CreatedDateTime = dateTime.AddSeconds(60);
await stubStockRepository.AddAsync(microsoftEntity);
StockEntity rheinEnergyEntity = new StockEntity("Rhein Energy", StockSector.Energy, 294.21, 8.5);
rheinEnergyEntity.CreatedDateTime = dateTime.AddSeconds(120);
await stubStockRepository.AddAsync(rheinEnergyEntity);
//Act
QueryProvider provider = new RedisQueryProvider(connectionMultiplexer);
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.IsActive == false && s.FirstLetterOfName == 'T' && s.CreatedDateTime == dateTime && (s.LastByteOfName == (byte)'L' || s.LengthOfNameInt < 6)) ||
(s.CreatedDateTime > dateTime.AddSeconds(90) && s.LengthOfNameUlong == (ulong)"Rhein Energy".Length));
List <StockEntity> result = query.ToList();
//Assert
Assert.Equal(2, result.Count);
Assert.Equal(" {{StockEntity:IsActive-Boolean:False}} {{StockEntity:FirstLetterOfName-Int32:84:=}} {{Intersection}} {{StockEntity:CreatedDateTime-DateTime:637454778230000000:=}} {{Intersection}} {{StockEntity:LastByteOfName-Int32:76:=}} {{StockEntity:LengthOfNameInt-Int32:6:<}} {{Union}}{{Intersection}} {{StockEntity:CreatedDateTime-DateTime:637454779130000000:>}} {{StockEntity:LengthOfNameUlong-UInt64:12:=}} {{Intersection}}{{Union}}", query.ToString());
}
public async Task QueryBy_DateTime()
{
//Arrange
DateTime dateTime = new DateTime(2021, 1, 5, 21, 10, 23);
IConnectionMultiplexer connectionMultiplexer = FakesFactory.CreateConnectionMultiplexerFake();
StockRepository stubStockRepository = FakesFactory.CreateStockRepositoryFake(connectionMultiplexer);
StockEntity teslaEntity = new StockEntity("TESLA", StockSector.Technology, 229.00, 12.5);
teslaEntity.CreatedDateTime = dateTime;
await stubStockRepository.AddAsync(teslaEntity);
StockEntity microsoftEntity = new StockEntity("MICROSOFT", StockSector.Technology, 204.00, 9.5);
microsoftEntity.CreatedDateTime = dateTime.AddSeconds(60);
await stubStockRepository.AddAsync(microsoftEntity);
StockEntity appleEntity = new StockEntity("APPLE", StockSector.Technology, 294.21, 8.5);
appleEntity.CreatedDateTime = dateTime.AddSeconds(120);
await stubStockRepository.AddAsync(appleEntity);
//Act
QueryProvider provider = new RedisQueryProvider(connectionMultiplexer);
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.CreatedDateTime < dateTime.AddSeconds(90)));
List <StockEntity> result = query.ToList();
//Assert
Assert.Equal(2, result.Count);
}
public async Task QueryBy_Boolean()
{
//Arrange
IConnectionMultiplexer connectionMultiplexer = FakesFactory.CreateConnectionMultiplexerFake();
StockRepository stubStockRepository = FakesFactory.CreateStockRepositoryFake(connectionMultiplexer);
StockEntity teslaEntity = new StockEntity("TESLA", StockSector.Technology, 229.00, 12.5);
teslaEntity.IsActive = false;
await stubStockRepository.AddAsync(teslaEntity);
StockEntity microsoftEntity = new StockEntity("MICROSOFT", StockSector.Technology, 204.00, 9.5);
await stubStockRepository.AddAsync(microsoftEntity);
StockEntity appleEntity = new StockEntity("APPLE", StockSector.Technology, 294.21, 8.5);
await stubStockRepository.AddAsync(appleEntity);
//Act
QueryProvider provider = new RedisQueryProvider(connectionMultiplexer);
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.IsActive == true));
List <StockEntity> result = query.ToList();
//Assert
Assert.Equal(2, result.Count);
}
public void Constructor_stores_EntityType_and_produces_empty_SelectedProperties()
{
var entityType = QueryTestType.EntityType();
var redisQuery = new RedisQuery(entityType);
Assert.Equal(entityType, redisQuery.EntityType);
Assert.Empty(redisQuery.SelectedProperties);
}
public void QueryBy_Enum()
{
//Arrange and Act
QueryProvider provider = new RedisQueryProvider((IConnectionMultiplexer)fixture.DI.GetService(typeof(IConnectionMultiplexer)));
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.Sector == StockSector.CommunicationServices));
List <StockEntity> result = query.ToList();
//Assert
Assert.Equal(fixture.TestData.Count(s => (s.Sector == StockSector.CommunicationServices)), result.Count);
}
public void QueryBy_DateTime()
{
//Arrange and Act
QueryProvider provider = new RedisQueryProvider((IConnectionMultiplexer)fixture.DI.GetService(typeof(IConnectionMultiplexer)));
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.CreatedDateTime < DateTime.Now.AddMilliseconds(245)));
List <StockEntity> result = query.ToList();
//Assert
Assert.Equal(fixture.TestData.Count(s => (s.CreatedDateTime < DateTime.Now.AddMinutes(245))), result.Count);
}
public void QueryBy_String()
{
//Arrange and Act
QueryProvider provider = new RedisQueryProvider((IConnectionMultiplexer)fixture.DI.GetService(typeof(IConnectionMultiplexer)));
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.Name == "Abbott Laboratories"));
List <StockEntity> result = query.ToList();
//Assert
Assert.Equal(fixture.TestData.Count(s => (s.Name == "Abbott Laboratories")), result.Count);
}
public void QueryBy_Int32()
{
//Arrange and Act
QueryProvider provider = new RedisQueryProvider((IConnectionMultiplexer)fixture.DI.GetService(typeof(IConnectionMultiplexer)));
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.LengthOfNameInt == 10));
List <StockEntity> result = query.ToList();
//Assert
Assert.Equal(fixture.TestData.Count(s => (s.LengthOfNameInt == 10)), result.Count);
}
/// <summary>
/// Gets non-materialized values from database
/// </summary>
/// <param name="redisQuery">Query data to decide what is selected from the database</param>
/// <returns>An Enumerable of non-materialized object[]'s each of which represents one primary key</returns>
public virtual IEnumerable <object[]> GetResults([NotNull] RedisQuery redisQuery)
{
Check.NotNull(redisQuery, "redisQuery");
var redisPrimaryKeyIndexKeyName =
ConstructRedisPrimaryKeyIndexKeyName(redisQuery.EntityType);
var allKeysForEntity = UnderlyingDatabase.SetMembers(redisPrimaryKeyIndexKeyName).AsEnumerable();
return(allKeysForEntity
.Select(compositePrimaryKeyValue =>
GetProjectionQueryObjectsFromDatabase(compositePrimaryKeyValue, redisQuery.EntityType, redisQuery.SelectedProperties, DecodeBytes)));
}
// returns the object array representing all the properties
// from an EntityType with a particular primary key
private async Task <object[]> GetQueryObjectsFromDatabaseAsync(
string primaryKey, RedisQuery redisQuery, Func <byte[], IProperty, object> decoder)
{
object[] results = null;
var dataKeyName = ConstructRedisDataKeyName(redisQuery.EntityType, primaryKey);
if (redisQuery.SelectedProperties == null ||
!redisQuery.SelectedProperties.Any())
{
results = new object[redisQuery.EntityType.Properties.Count];
// Async HGETALL
var redisHashEntries = await GetUnderlyingDatabase().HashGetAllAsync(dataKeyName);
foreach (var property in redisQuery.EntityType.Properties)
{
var redisHashEntriesDictionary = redisHashEntries.ToDictionary(he => he.Name, he => he.Value);
// Note: since null's are stored in the database as the absence of the column name in the hash
// need to insert null's into the objectArray at the appropriate places.
RedisValue propertyRedisValue;
if (redisHashEntriesDictionary.TryGetValue(property.Name, out propertyRedisValue))
{
results[property.Index] = decoder(propertyRedisValue, property);
}
else
{
results[property.Index] = null;
}
}
}
else
{
var selectedPropertiesArray = redisQuery.SelectedProperties.ToArray();
results = new object[selectedPropertiesArray.Length];
// Async HMGET
var fields = selectedPropertiesArray.Select(p => (RedisValue)p.Name).ToArray();
var redisHashEntries = await GetUnderlyingDatabase().HashGetAsync(dataKeyName, fields);
for (var i = 0; i < selectedPropertiesArray.Length; i++)
{
results[i] =
redisHashEntries[i].IsNull
? null
: decoder(redisHashEntries[i], selectedPropertiesArray[i]);
}
}
return(results);
}
/// <summary>
/// Gets a set of object[] values from database each of which represents the values
/// of the Properties required by the query for a particular EntityType
/// </summary>
/// <param name="redisQuery">An object representing the parameters of the query</param>
/// <returns>
/// An Enumerable of object[] values from database each of which represents
/// the values of the Properties for the EntityType (either all the propoerties
/// or the selected properties as defined by the query)
/// </returns>
public virtual IEnumerable <object[]> GetResultsEnumerable([NotNull] RedisQuery redisQuery)
{
Check.NotNull(redisQuery, "redisQuery");
var redisPrimaryKeyIndexKeyName
= ConstructRedisPrimaryKeyIndexKeyName(redisQuery.EntityType);
var allKeysForEntity
= GetUnderlyingDatabase().SetMembers(redisPrimaryKeyIndexKeyName);
return(allKeysForEntity
.Select(compositePrimaryKey
=> GetQueryObjectsFromDatabase(
compositePrimaryKey, redisQuery, DecodeBytes)));
}
public void QueryBy_Complex()
{
//Arrange and Act
QueryProvider provider = new RedisQueryProvider((IConnectionMultiplexer)fixture.DI.GetService(typeof(IConnectionMultiplexer)));
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.IsActive == true && s.FirstLetterOfName == 'A' && s.CreatedDateTime < DateTime.Now.AddMilliseconds(-1) &&
(s.LastByteOfName == (byte)'.' || s.LengthOfNameInt < 12) || (s.CreatedDateTime == DateTime.Now &&
s.LengthOfNameUlong == (ulong)"Accenture plc".Length)));
List <StockEntity> result = query.ToList();
var count = fixture.TestData.Count(s => (s.IsActive == true && s.FirstLetterOfName == 'A' && s.CreatedDateTime < DateTime.Now.AddMilliseconds(-1) &&
(s.LastByteOfName == (byte)'.' || s.LengthOfNameInt < 12) || (s.CreatedDateTime == DateTime.Now &&
s.LengthOfNameUlong == (ulong)"Accenture plc".Length)));
//Assert
Assert.Equal(count, result.Count);
}
public static void Main(string[] args)
{
RedisQuery <Product> query = new RedisQuery <Product>();
query.Add(new Product()
{
Name = "cxb", CreateTime = "2020-3-17 16:28:31"
});
query.Add(new Product()
{
Name = "utr", CreateTime = "2020-3-19 16:28:31"
});
var nWhere = query.Where(n => n.Name == "cxb");
var cWhere = nWhere.Where(c => c.CreateTime == "2020-3-17 16:28:31");
var eWhere = cWhere.AsEnumerable();
var list = cWhere.ToList();
Console.WriteLine("Hello World!");
}
public void GetValueReaders_returns_ObjectArrayReaders_over_an_enumerable_of_object_arrays()
{
var configurationMock = new Mock <DbContextConfiguration>();
var redisDatabaseMock = new Mock <RedisDatabase>(configurationMock.Object);
var materializationStrategyMock = new Mock <IQueryBuffer>();
var stateManagerMockMock = new Mock <StateManager>();
var redisQueryContextMock
= new Mock <RedisQueryContext>(
NullLogger.Instance,
materializationStrategyMock.Object,
stateManagerMockMock.Object,
redisDatabaseMock.Object);
var resultsFromDatabase = new List <object[]>
{
new object[] { 1, "SomeValue1" },
new object[] { 2, "SomeValue2" }
};
redisQueryContextMock.Setup(m => m.GetResultsFromRedis(It.IsAny <RedisQuery>())).Returns(resultsFromDatabase);
var entityType = QueryTestType.EntityType();
var redisQuery = new RedisQuery(entityType);
var readers = redisQuery.GetValueReaders(redisQueryContextMock.Object);
Assert.Equal(2, readers.Count());
var i = 1;
foreach (var reader in readers)
{
Assert.Equal(i, reader.ReadValue <int>(0));
Assert.Equal("SomeValue" + i, reader.ReadValue <string>(1));
i++;
}
}
public void AddProperty_updates_SelectedProperties_and_subsequent_GetProjectionIndex_is_correct()
{
// add 1 property
var entityType = QueryTestType.EntityType();
var redisQuery = new RedisQuery(entityType);
var someValueProperty = entityType.GetProperty("SomeValue");
redisQuery.AddProperty(someValueProperty);
Assert.True((new List <IProperty> {
someValueProperty
}).SequenceEqual(redisQuery.SelectedProperties));
Assert.Equal(0, redisQuery.GetProjectionIndex(someValueProperty));
// add a different property
var idProperty = entityType.GetProperty("Id");
redisQuery.AddProperty(idProperty);
Assert.True((new List <IProperty> {
someValueProperty, idProperty
}).SequenceEqual(redisQuery.SelectedProperties));
Assert.Equal(0, redisQuery.GetProjectionIndex(someValueProperty));
Assert.Equal(1, redisQuery.GetProjectionIndex(idProperty));
// add the 1st property again - adds to end of list
redisQuery.AddProperty(someValueProperty);
Assert.True((new List <IProperty> {
someValueProperty, idProperty, someValueProperty
}).SequenceEqual(redisQuery.SelectedProperties));
// Note: GetProjectionIndex(someValueProperty) returns the _first_ index at which that property is returned
Assert.Equal(0, redisQuery.GetProjectionIndex(someValueProperty));
Assert.Equal(1, redisQuery.GetProjectionIndex(idProperty));
}
public async Task QueryBy_Enum()
{
//Arrange
IConnectionMultiplexer connectionMultiplexer = FakesFactory.CreateConnectionMultiplexerFake();
StockRepository stubStockRepository = FakesFactory.CreateStockRepositoryFake(connectionMultiplexer);
StockEntity teslaEntity = new StockEntity("TESLA", StockSector.Technology, 229.00, 12.5);
await stubStockRepository.AddAsync(teslaEntity);
StockEntity microsoftEntity = new StockEntity("MICROSOFT", StockSector.Technology, 204.00, 9.5);
await stubStockRepository.AddAsync(microsoftEntity);
StockEntity rheinEnergyEntity = new StockEntity("Rhein Energy", StockSector.Energy, 294.21, 8.5);
await stubStockRepository.AddAsync(rheinEnergyEntity);
//Act
QueryProvider provider = new RedisQueryProvider(connectionMultiplexer);
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.Sector == StockSector.Technology));
List <StockEntity> result = query.ToList();
//Assert
Assert.Equal(2, result.Count);
}
public async Task QueryBy_Char()
{
//Arrange
IConnectionMultiplexer connectionMultiplexer = FakesFactory.CreateConnectionMultiplexerFake();
StockRepository stubStockRepository = FakesFactory.CreateStockRepositoryFake(connectionMultiplexer);
StockEntity teslaEntity = new StockEntity("TESLA", StockSector.Technology, 229.00, 12.5);
await stubStockRepository.AddAsync(teslaEntity);
StockEntity microsoftEntity = new StockEntity("MICROSOFT", StockSector.Technology, 204.00, 9.5);
await stubStockRepository.AddAsync(microsoftEntity);
StockEntity appleEntity = new StockEntity("APPLE", StockSector.Technology, 294.21, 8.5);
await stubStockRepository.AddAsync(appleEntity);
//Act
QueryProvider provider = new RedisQueryProvider(connectionMultiplexer);
RedisQuery <StockEntity> redisQuery = new RedisQuery <StockEntity>(provider);
IQueryable <StockEntity> query = redisQuery.Where(s => (s.FirstLetterOfName == 'T'));
List <StockEntity> result = query.ToList();
//Assert
Assert.Single(result);
}
/// <summary>
/// Gets a set of object[] values from database each of which represents the values
/// of the Properties required by the query for a particular EntityType
/// </summary>
/// <param name="redisQuery">An object representing the parameters of the query</param>
/// <returns>
/// An Enumerable of object[] values from database each of which represents
/// the values of the Properties for the EntityType (either all the propoerties
/// or the selected properties as defined by the query)
/// </returns>
public virtual IAsyncEnumerable <object[]> GetResultsAsyncEnumerable([NotNull] RedisQuery redisQuery)
{
Check.NotNull(redisQuery, "redisQuery");
return(new AsyncEnumerable(this, redisQuery));
}
