protected virtual void ExecuteValidations <T>(ICPRContext currentCtx, CPRExecutionResult result, T cmd)
where T : CPRCommand <T>
{
var validators = cmd.Validators.ToList();
result.AddErrors(validators.SelectMany(v => v.Validate(currentCtx, cmd)));
if (cmd is ICPRValidator <T> )
{
result.AddErrors(((ICPRValidator <T>)cmd).Validate(currentCtx, cmd));
}
}
public virtual CPRExecutionResult Execute <T>(T cmd, bool ensureCommandsHaveSecurityValidators = true)
where T : CPRCommand <T>
{
try
{
BeforeExecute();
var currentCtx = m_ctxFetcher.GetCurrentContext();
var interceptors = cmd.Interceptors.ToList();
foreach (var interceptor in interceptors)
{
interceptor.Intercept(currentCtx, cmd);
}
if (cmd is ICPRInterceptor <T> )
{
((ICPRInterceptor <T>)cmd).Intercept(currentCtx, cmd);
}
var result = new CPRExecutionResult();
//
// Security checks
//
if (ensureCommandsHaveSecurityValidators && !cmd.SecurityValidators.Any())
{
throw new Exception("Command does not have at least on security validator");
}
result.AddErrors(cmd.SecurityValidators.SelectMany(v => v.Authenticate(currentCtx, cmd)));
// Security Validator will not be automatic (via is ICPRSecurityAValidator), since we want people to make a conscious decision
// about which security policy applies
if (result.Errors.Any())
{
// Security errors cause immediate abort.
return(result);
}
//
// Validation and Business Results
//
ExecuteValidations(currentCtx, result, cmd);
if (result.Errors.Any())
{
return(result);
}
DateTime utcStart = DateTime.UtcNow;
if (cmd.ID == Guid.Empty)
{
cmd.ID = Guid.NewGuid();
}
try
{
ExecuteProjections <T>(currentCtx, cmd);
m_store.Persist(cmd, currentCtx.UserID, utcStart);
result.Success = true;
}
catch (CPRValidationException cprEx)
{
m_logger.LogWarning(cprEx.ToString() + " - " + cprEx.StackTrace);
result.Success = false;
foreach (var err in cprEx.Errors)
{
result.AddError(err);
}
}
catch (Exception ex)
{
m_logger.LogError(ex.ToString() + " - " + ex.StackTrace);
result.Success = false;
result.AddError(new CPRError()
{
Message = "Exception during execution: " + ex.Message,
});
}
return(result);
}
finally
{
AfterExecute();
}
}
