public Task <Func <Task> > CascadeDeleteAsync <TEntity>(MemberInfo memberInfo,
string rowKeyRef, string partitionKeyRef,
TEntity memberValue, IDictionary <string, EntityProperty> dictionary,
AzureTableDriverDynamic repository)
{
var tableName = GetLookupTableName(memberInfo);
return(repository
.DeleteAsync <StorageLookupTable, Func <Task> >(rowKeyRef, partitionKeyRef,
async(lookupTable, deleteAsync) =>
{
var lookupEntity = await deleteAsync();
var rollbacks = await lookupTable
.rowAndPartitionKeys
.NullToEmpty()
.Select(rowParitionKeyKvp =>
repository.DeleteAsync <Func <Task> >(rowParitionKeyKvp.Key, rowParitionKeyKvp.Value, memberInfo.DeclaringType,
(entity, data) =>
() => (Task)repository.CreateAsync(entity, memberInfo.DeclaringType,
(x) => true, () => false),
() =>
() => 1.AsTask()))
.AsyncEnumerable()
.Append(
() => repository.CreateAsync(lookupEntity, tableName,
x => true,
() => false))
.ToArrayAsync();
Func <Task> rollbacksAll = () => Task.WhenAll(rollbacks.Select(rollback => rollback()));
return rollbacksAll;
},
() => () => 0.AsTask(),
tableName: tableName));
}
public async Task <TResult> ExecuteDeleteAsync <TEntity, TResult>(MemberInfo memberInfo,
string rowKeyRef, string partitionKeyRef,
TEntity value, IDictionary <string, EntityProperty> dictionary,
AzureTableDriverDynamic repository,
Func <Func <Task>, TResult> onSuccessWithRollback,
Func <TResult> onFailure)
{
if (IsIgnored(memberInfo, value))
{
return(onSuccessWithRollback(() => true.AsTask()));
}
var hashRowKey = GetHashRowKey(memberInfo, value, out string discard);
var hashPartitionKey = memberInfo.DeclaringType.Name;
var tableName = GetLookupTableName(memberInfo);
return(await repository.DeleteAsync <StorageLookupTable, TResult>(
hashRowKey, hashPartitionKey,
async (entity, deleteAsync) =>
{
await deleteAsync();
return onSuccessWithRollback(
() => repository.CreateAsync(entity,
(discardAgain, discard2x) => true, () => false));
},
() => onSuccessWithRollback(() => 1.AsTask()),
(codes, why) => onSuccessWithRollback(() => 1.AsTask()),
tableName : tableName));
}
public virtual Task <TResult> ExecuteCreateAsync <TEntity, TResult>(MemberInfo memberInfo,
string rowKey, string partitionKey,
TEntity value, IDictionary <string, EntityProperty> dictionary,
AzureTableDriverDynamic repository,
Func <Func <Task>, TResult> onSuccessWithRollback,
Func <TResult> onFailure)
{
var to = (IModifyAzureStorageTablePartitionKey)Activator.CreateInstance(this.To);
var toPartitionKey = to.GeneratePartitionKey(rowKey, value, memberInfo);
var typeWrapper = new TypeWrapper(rowKey, toPartitionKey, dictionary);
return(repository.CreateAsync <TEntity, TResult>(typeWrapper,
(entity) => onSuccessWithRollback(
() => repository.DeleteAsync <TEntity, bool>(entity,
() => true,
() => true)),
() => onSuccessWithRollback(() => false.AsTask())));
}
public async Task <TResult> ExecuteCreateAsync <TEntity, TResult>(MemberInfo memberInfo,
string rowKeyRef, string partitionKeyRef, TEntity value, IDictionary <string, EntityProperty> dictionary,
AzureTableDriverDynamic repository,
Func <Func <Task>, TResult> onSuccessWithRollback,
Func <TResult> onFailure)
{
var memberType = typeof(TEntity);
var taskValue = value.ExecuteFunction(out Type taskType);
var resultValue = await taskValue.CastAsTaskObjectAsync(out Type typeToSave);
var rawValues = Serialize(resultValue, typeToSave);
var subtableEntity = new SubtableEntity(rowKeyRef, partitionKeyRef, rawValues);
var tableName = StorageLookupAttribute.GetMemberTableName(memberInfo);
var tableRef = repository.TableClient.GetTableReference(tableName);
return(await repository.CreateAsync(subtableEntity, new E5CloudTable(tableRef),
(discard, discard2) => onSuccessWithRollback(() => 1.AsTask()),
onAlreadyExists : () => onFailure()));
}
public Task <TResult> ExecuteDeleteAsync <TEntity, TResult>(MemberInfo memberInfo,
string rowKey, string partitionKey,
TEntity value, IDictionary <string, EntityProperty> dictionary,
AzureTableDriverDynamic repository,
Func <Func <Task>, TResult> onSuccessWithRollback,
Func <TResult> onFailure)
{
var to = (IModifyAzureStorageTablePartitionKey)Activator.CreateInstance(this.To);
var toPartitionKey = to.GeneratePartitionKey(rowKey, value, memberInfo);
var typeWrapper = new TypeWrapper(rowKey, toPartitionKey, dictionary);
return(repository.DeleteAsync <TEntity, TResult>(typeWrapper,
() => onSuccessWithRollback(
() =>
{
return repository.CreateAsync <TEntity, bool>(typeWrapper,
(createdEntity) => true,
() => true);
}),
() => onSuccessWithRollback(
() => 1.AsTask()),
() => throw new Exception("Delete with ETAG = * failed due to modification.")));
}
