internal static async Task <TEntity[]> UpdateEntities <TEntity>(this IBulkRequest request,
ICrudRequestConfig config,
IEnumerable <Tuple <object, TEntity> > items,
CancellationToken token)
where TEntity : class
{
var updator = config.GetUpdatorFor <TEntity>();
try
{
var entities = await Task.WhenAll(items.Select(x => updator(request, x.Item1, x.Item2, token))).Configure();
token.ThrowIfCancellationRequested();
return(entities);
}
catch (Exception e) when(IsNonCancellationFailure(e))
{
throw new CrudUpdateEntityFailedException(GenericUpdateEntityError, e)
{
ItemProperty = items.Select(x => x.Item1).ToArray(),
EntityProperty = items.Select(x => x.Item2).ToArray()
};
}
}
internal static async Task <T> RunResultHooks <T>(this ICrudRequest request,
ICrudRequestConfig config,
T result,
CancellationToken ct)
{
var hooks = config.GetResultHooks();
foreach (var hook in hooks)
{
try
{
if (typeof(T).IsAssignableFrom(hook.ResultType))
{
result = (T)await hook.Run(request, result, ct).Configure();
}
else
{
result = await ResultHookAdapter.Adapt(hook, request, result, ct).Configure();
}
ct.ThrowIfCancellationRequested();
}
catch (Exception e) when(IsNonCancellationFailure(e))
{
throw new CrudHookFailedException(GenericHookError("result"), e)
{
HookProperty = hook
};
}
}
return(result);
}
internal static async Task <TEntity> UpdateEntity <TEntity>(this ICrudRequest request,
ICrudRequestConfig config,
object item,
TEntity entity,
CancellationToken token)
where TEntity : class
{
var updator = config.GetUpdatorFor <TEntity>();
try
{
entity = await updator(request, item, entity, token).Configure();
token.ThrowIfCancellationRequested();
return(entity);
}
catch (Exception e) when(IsNonCancellationFailure(e))
{
throw new CrudUpdateEntityFailedException(GenericUpdateEntityError, e)
{
ItemProperty = item,
EntityProperty = entity
};
}
}
internal static async Task RunEntityHooks <TEntity>(this ICrudRequest request,
ICrudRequestConfig config,
object entity,
CancellationToken ct)
where TEntity : class
{
var hooks = config.GetEntityHooksFor <TEntity>();
foreach (var hook in hooks)
{
try
{
await hook.Run(request, entity, ct).Configure();
ct.ThrowIfCancellationRequested();
}
catch (Exception e) when(IsNonCancellationFailure(e))
{
throw new CrudHookFailedException(GenericHookError("entity"), e)
{
HookProperty = hook
};
}
}
}
internal static async Task <object[]> RunItemHooks <TEntity>(this IBulkRequest request,
ICrudRequestConfig config,
object[] items,
CancellationToken ct)
where TEntity : class
{
var hooks = config.GetItemHooksFor <TEntity>();
foreach (var hook in hooks)
{
for (var i = 0; i < items.Length; ++i)
{
try
{
items[i] = await hook.Run(request, items[i], ct).Configure();
ct.ThrowIfCancellationRequested();
}
catch (Exception e) when(IsNonCancellationFailure(e))
{
throw new CrudHookFailedException(GenericHookError("item"), e)
{
HookProperty = hook
};
}
}
}
return(items);
}
internal static IQueryable <TEntity> SortWith <TEntity>(this IQueryable <TEntity> entities,
object request,
ICrudRequestConfig config)
where TEntity : class
{
var sorter = config.GetSorterFor <TEntity>();
return(sorter?.Sort(request, entities).Cast <TEntity>() ?? entities);
}
internal static IQueryable <TEntity> SelectWith <TEntity>(this IQueryable <TEntity> entities,
object request,
ICrudRequestConfig config)
where TEntity : class
{
var selector = config.GetSelectorFor <TEntity>().Get <TEntity>();
return(entities.Where(selector(request)));
}
public override BulkOperation <TOperationEntity> Apply <TOperationEntity>(
ICrudRequestConfig config,
BulkOperation <TOperationEntity> operation)
{
operation = base.Apply(config, operation);
operation.CaseSensitive = _keyCaseSensitivity;
return(operation);
}
protected CrudRequestHandler(IEntityContext context, CrudConfigManager profileManager)
{
Context = context;
RequestConfig = profileManager.GetRequestConfigFor <TRequest>();
DataContext = new DataContext <TEntity>(RequestConfig);
var errorHandler = RequestConfig.ErrorConfig.GetErrorHandlerFor <TEntity>();
ErrorDispatcher = new CrudErrorDispatcher(errorHandler);
}
internal static IQueryable <TEntity> FilterWith <TEntity>(this IQueryable <TEntity> entities,
object request,
ICrudRequestConfig config)
where TEntity : class
{
var filters = config.GetFiltersFor <TEntity>();
return(filters.Aggregate(entities, (current, filter)
=> filter.Filter(request, current).Cast <TEntity>()));
}
protected Expression <Func <TEntity, object> > GetDefaultKeyMapping(ICrudRequestConfig config)
{
var entityKey = config.GetKeyFor <TEntity>();
if (entityKey != null && entityKey.KeyExpression.Body is MemberExpression memberExpression)
{
return(MakeColumnExpression <TEntity>(memberExpression.Member));
}
return(null);
}
public override BulkOperation <TOperationEntity> Apply <TOperationEntity>(
ICrudRequestConfig config,
BulkOperation <TOperationEntity> operation)
{
operation = base.Apply(config, operation);
if (IgnoredColumns.Count > 0)
{
if (operation.IgnoreOnInsertExpression != null)
{
foreach (var member in ((NewExpression)operation.IgnoreOnInsertExpression.Body).Members)
{
IgnoredColumns.Add(member);
}
}
operation.IgnoreOnInsertExpression = CreateNewExpression <TOperationEntity>(IgnoredColumns);
}
return(operation);
}
internal static async Task <TResult[]> CreateResults <TEntity, TResult>(this TEntity[] entities,
ICrudRequestConfig config,
CancellationToken token)
where TEntity : class
{
var createResult = config.GetResultCreatorFor <TEntity, TResult>();
try
{
var results = await Task.WhenAll(entities.Select(x => createResult(x, token))).Configure();
token.ThrowIfCancellationRequested();
return(results);
}
catch (Exception e) when(IsNonCancellationFailure(e))
{
throw new CrudCreateResultFailedException(GenericCreateResultError, e)
{
EntityProperty = entities
};
}
}
internal static async Task RunRequestHooks(this ICrudRequest request,
ICrudRequestConfig config,
CancellationToken ct)
{
var hooks = config.GetRequestHooks();
foreach (var hook in hooks)
{
try
{
await hook.Run(request, ct).Configure();
ct.ThrowIfCancellationRequested();
}
catch (Exception e) when(IsNonCancellationFailure(e))
{
throw new CrudHookFailedException(GenericHookError("request"), e)
{
HookProperty = hook
};
}
}
}
public override BulkOperation <TOperationEntity> Apply <TOperationEntity>(
ICrudRequestConfig config,
BulkOperation <TOperationEntity> operation)
{
operation = base.Apply(config, operation);
operation.AllowDuplicateKeys = _allowDuplicateKeys;
operation.CaseSensitive = _keyCaseSensitivity;
if (IgnoredColumns.Count > 0)
{
if (operation.IgnoreOnUpdateExpression != null)
{
foreach (var member in ((NewExpression)operation.IgnoreOnUpdateExpression.Body).Members)
{
IgnoredColumns.Add(member);
}
}
operation.IgnoreOnUpdateExpression = CreateNewExpression <TOperationEntity>(IgnoredColumns);
}
return(operation);
}
public UniversalRequestDecorator(CrudConfigManager profileManager,
Func <IRequestHandler <TRequest> > decorateeFactory)
{
_decorateeFactory = decorateeFactory;
_requestConfig = profileManager.GetRequestConfigFor <TRequest>();
}
public virtual BulkOperation <TOperationEntity> Apply <TOperationEntity>(
ICrudRequestConfig config,
BulkOperation <TOperationEntity> operation)
where TOperationEntity : class
{
var keyColumn = operation.ColumnMappings.Find(x => x.IsPrimaryKey);
if (KeyColumnMapping != null)
{
if (keyColumn != null)
{
operation.ColumnMappings.Remove(keyColumn);
}
}
else
{
KeyColumnMapping = keyColumn != null
? UpcastExpression(keyColumn.SourceExpression)
: GetDefaultKeyMapping(config);
}
if (keyColumn == null)
{
if (KeyColumnMapping == null)
{
var message = $"No key column has been declared for bulk request '{config.RequestType}' " +
$"and entity '{typeof(TOperationEntity)}'.";
throw new BadCrudConfigurationException(message);
}
operation.ColumnMappings.Add(DowncastExpression <TOperationEntity>(KeyColumnMapping), true);
}
if (ColumnMappings.Count == 0)
{
AddDefaultColumnMappings(operation.ColumnMappings);
}
foreach (var mapping in ColumnMappings)
{
operation.ColumnMappings.Add(DowncastExpression <TOperationEntity>(mapping), false);
}
if (OutputExpression == null)
{
OutputExpression = KeyColumnMapping;
if (operation.ColumnOutputExpression == null)
{
operation.ColumnOutputExpression = DowncastExpression <TOperationEntity>(OutputExpression);
}
}
if (BatchSize.HasValue)
{
operation.BatchSize = BatchSize.Value;
}
if (BatchTimeout.HasValue)
{
operation.BatchTimeout = BatchTimeout.Value;
}
return(operation);
}
public DataContext(EntitySet <TEntity> entitySet, ICrudRequestConfig config)
{
EntitySet = entitySet;
Configuration = config;
}
public DataContext(ICrudRequestConfig config) : this(null, config)
{
}
