public OrderByQueryPartitionRangePageAsyncEnumerator(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
FeedRangeInternal feedRange,
PartitionKey?partitionKey,
int pageSize,
string filter,
CancellationToken cancellationToken,
QueryState state = default)
: base(feedRange, cancellationToken, state)
{
this.StartOfPageState = state;
this.innerEnumerator = new InnerEnumerator(
queryDataSource,
sqlQuerySpec,
feedRange,
partitionKey,
pageSize,
filter,
cancellationToken,
state);
this.bufferedEnumerator = new BufferedPartitionRangePageAsyncEnumerator <OrderByQueryPage, QueryState>(
this.innerEnumerator,
cancellationToken);
}
private static CreatePartitionRangePageAsyncEnumerator <QueryPage, QueryState> MakeCreateFunction(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
QueryPaginationOptions queryPaginationOptions,
Cosmos.PartitionKey?partitionKey,
CancellationToken cancellationToken) => (FeedRangeState <QueryState> feedRangeState) => new QueryPartitionRangePageAsyncEnumerator(
queryDataSource,
sqlQuerySpec,
feedRangeState,
partitionKey,
queryPaginationOptions,
cancellationToken);
private static CreatePartitionRangePageAsyncEnumerator <QueryPage, QueryState> MakeCreateFunction(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
int pageSize,
Cosmos.PartitionKey?partitionKey,
CancellationToken cancellationToken) => (FeedRangeInternal range, QueryState state) => new QueryPartitionRangePageAsyncEnumerator(
queryDataSource,
sqlQuerySpec,
range,
partitionKey,
pageSize,
cancellationToken: cancellationToken,
state);
public QueryPartitionRangePageAsyncEnumerator(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
PartitionKeyRange feedRange,
int pageSize,
CancellationToken cancellationToken,
QueryState state = default)
: base(feedRange, cancellationToken, state)
{
this.queryDataSource = queryDataSource ?? throw new ArgumentNullException(nameof(queryDataSource));
this.sqlQuerySpec = sqlQuerySpec ?? throw new ArgumentNullException(nameof(sqlQuerySpec));
this.pageSize = pageSize;
}
public QueryPartitionRangePageAsyncEnumerator(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
FeedRangeState <QueryState> feedRangeState,
Cosmos.PartitionKey?partitionKey,
QueryPaginationOptions queryPaginationOptions,
CancellationToken cancellationToken)
: base(feedRangeState, cancellationToken)
{
this.queryDataSource = queryDataSource ?? throw new ArgumentNullException(nameof(queryDataSource));
this.sqlQuerySpec = sqlQuerySpec ?? throw new ArgumentNullException(nameof(sqlQuerySpec));
this.queryPaginationOptions = queryPaginationOptions;
this.partitionKey = partitionKey;
}
public InnerEnumerator(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
FeedRangeState <QueryState> feedRangeState,
PartitionKey?partitionKey,
QueryPaginationOptions queryPaginationOptions,
string filter,
CancellationToken cancellationToken)
: base(feedRangeState, cancellationToken)
{
this.queryDataSource = queryDataSource ?? throw new ArgumentNullException(nameof(queryDataSource));
this.SqlQuerySpec = sqlQuerySpec ?? throw new ArgumentNullException(nameof(sqlQuerySpec));
this.PartitionKey = partitionKey;
this.queryPaginationOptions = queryPaginationOptions ?? QueryPaginationOptions.Default;
this.Filter = filter;
}
private IQuery <T, TParameters> Resolve <TParameters>(IQueryDataSource dataSource)
{
try
{
var handler = _resolver.Resolve <T, TParameters>(dataSource);
return(handler);
}
catch (Exception e)
{
if (typeof(TParameters) == typeof(LinqToEntitiesPredicateParameters))
{
throw new QueryNotFoundException(@"Не удалось найти обработчки запросов Linq to Entities. Убедитесь, что msc.Fx включена в список сборок, доступных для IQueryResolver.", e);
}
throw new QueryNotFoundException($"Не удалось найти реализацию IQuery<{typeof(T).ToString()}, {typeof(TParameters).ToString()}>.", e);
}
}
public InnerEnumerator(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
FeedRangeInternal feedRange,
PartitionKey?partitionKey,
int pageSize,
string filter,
CancellationToken cancellationToken,
QueryState state = default)
: base(feedRange, cancellationToken, state)
{
this.queryDataSource = queryDataSource ?? throw new ArgumentNullException(nameof(queryDataSource));
this.SqlQuerySpec = sqlQuerySpec ?? throw new ArgumentNullException(nameof(sqlQuerySpec));
this.PartitionKey = partitionKey;
this.PageSize = pageSize;
this.Filter = filter;
}
public OrderByQueryPartitionRangePageAsyncEnumerator(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
FeedRangeState <QueryState> feedRangeState,
PartitionKey?partitionKey,
QueryPaginationOptions queryPaginationOptions,
string filter,
CancellationToken cancellationToken)
: base(feedRangeState, cancellationToken)
{
this.StartOfPageState = feedRangeState.State;
this.innerEnumerator = new InnerEnumerator(
queryDataSource,
sqlQuerySpec,
feedRangeState,
partitionKey,
queryPaginationOptions,
filter,
cancellationToken);
this.bufferedEnumerator = new BufferedPartitionRangePageAsyncEnumerator <OrderByQueryPage, QueryState>(
this.innerEnumerator,
cancellationToken);
}
/// <summary>
/// Recupera a origemd de ados
/// </summary>
/// <param name="queryInfo"></param>
/// <returns></returns>
private IQueryDataSource GetDataSource(QueryInfo queryInfo)
{
var providerName = ProviderLocator.GetProviderName(queryInfo);
IQueryDataSource dataSource = null;
lock (_objLock)
if (_queryDataSources.TryGetValue(providerName, out dataSource))
{
return(dataSource);
}
dataSource = _serviceLocator.GetInstance <IQueryDataSource>(string.Format("{0}QueryDataSource", providerName));
if (dataSource == null)
{
throw new Exception(ResourceMessageFormatter.Create(() => Properties.Resources.DataSourceUndefined).Format());
}
lock (_objLock)
{
if (!_queryDataSources.ContainsKey(providerName))
{
_queryDataSources.Add(providerName, dataSource);
}
}
return(dataSource);
}
// Через DI передеаем все с чем нужно взаимодействовать.
// Можно передать и DbConnection, правда для такого сценария есть ISqlDataSource
public GetUserShedules(IQueryDataSource dataSource) : base(dataSource)
{
}
public QueryProcessor(IQueryResolver resolver, IQueryDataSource dataSource)
{
_resolver = resolver;
_dataSource = dataSource;
}
protected Query(IQueryDataSource dataSource) : base(dataSource)
{
}
// Через DI передеаем все с чем нужно взаимодействовать.
// Можно передать и DbConnection, правда для такого сценария есть ISqlDataSource
public FindUsers(IQueryDataSource dataSource) : base(dataSource)
{
}
private static CreatePartitionRangePageAsyncEnumerator <QueryPage, QueryState> MakeCreateFunction(
IQueryDataSource queryDataSource,
SqlQuerySpec sqlQuerySpec,
int pageSize) => (PartitionKeyRange range, QueryState state) => new QueryPartitionRangePageAsyncEnumerator(
protected QueryBase(IQueryDataSource dataSource)
{
DataSource = dataSource;
}
public LinqToEntitiesPredicateQuery(IQueryDataSource dataSource) : base(dataSource)
{
}
/// <summary>
/// Construtor padrão.
/// </summary>
/// <param name="dataSource">Fonte de dados</param>
public SqlSourceContext(IQueryDataSource dataSource)
{
dataSource.Require("dataSource").NotNull();
_dataSource = dataSource;
}
public IQuery <T, TParameters> Resolve <T, TParameters>(IQueryDataSource dataSource)
{
return(_container.With(dataSource).GetInstance <IQuery <T, TParameters> >());
}
// Через DI передеаем все с чем нужно взаимодействовать.
// Можно передать и DbConnection, правда для такого сценария есть ISqlDataSource
public GetScheduleById(IQueryDataSource dataSource) : base(dataSource)
{
}
// Через DI передеаем все с чем нужно взаимодействовать.
// Можно передать и DbConnection, правда для такого сценария есть ISqlDataSource
public GetUserById(IQueryDataSource dataSource) : base(dataSource)
{
}
/// <summary>
/// Executa a consulta.
/// </summary>
/// <returns>Resultado na forma de um vetor de <see cref="QueryResult"/></returns>
public IEnumerable <IQueryResult> Execute(IQueryDataSource dataSource)
{
dataSource.Require("dataSource").NotNull();
return(dataSource.Execute(CreateQueryInfos()));
}