public async Task <TResult> ExecuteAsync <TResult>(
Func <TResult> success,
Func <TFailure, TResult> failed)
{
var results = await Tasks
.Select(async task =>
{
var rollbackResult = await task.Invoke(
(rollback) => RollbackResult.Success(rollback),
(failureResultReturned) => RollbackResult.Failure(failureResultReturned));
return(rollbackResult);
})
.WhenAllAsync();
var resultGlobal = await results.FirstOrDefault(
result => result.IsFailure,
async (failedResult) =>
{
await results.Select(result => result.Rollback()).RunAllAsync();
return(failed(failedResult.FailureResult));
},
async() =>
{
return(await success().ToTask());
});
return(resultGlobal);
}
public GlobalJsonResult <RollbackResult> RollbackComponentsForVersion([FromBody] RollbackRequest request)
{
installation.RollbackInstallationVersion(request.FailedInstallationComponentId, Version.Parse(request.FailedInstallationVersion));
var version = installation.GetCurrentVersion();
var result = new RollbackResult();
result.PopulateFrom(version);
return(GlobalJsonResult <RollbackResult> .Success(System.Net.HttpStatusCode.NoContent, result));
}
