public CommandResult Execute(ICommandInfo commandInfo)
{
var saveInfo = (SaveEntityCommandInfo)commandInfo;
if (saveInfo.Entity == null)
{
throw new ClientException("Invalid SaveEntityCommand argument: Entity is not set.");
}
// We need to check delete permissions before actually deleting items
// and update items before AND after they are updated.
var genericRepository = _genericRepositories.GetGenericRepository(saveInfo.Entity);
var updateDeleteItems = ConcatenateNullable(saveInfo.DataToDelete, saveInfo.DataToUpdate);
if (updateDeleteItems != null)
{
if (!_serverCommandsUtility.CheckAllItemsWithinFilter(updateDeleteItems, RowPermissionsWriteInfo.FilterName, genericRepository))
{
_persistenceTransaction.DiscardChanges();
Guid?missingId;
if (_serverCommandsUtility.MissingItemId(saveInfo.DataToDelete, genericRepository, out missingId))
{
throw new ClientException($"Deleting a record that does not exist in database. DataStructure={saveInfo.Entity}, ID={missingId}");
}
else if (_serverCommandsUtility.MissingItemId(saveInfo.DataToUpdate, genericRepository, out missingId))
{
throw new ClientException($"Updating a record that does not exist in database. DataStructure={saveInfo.Entity}, ID={missingId}");
}
else
{
throw new UserException("You are not authorized to write some or all of the provided data. Insufficient permissions to modify the existing data.", "DataStructure:" + saveInfo.Entity + ".");
}
}
}
genericRepository.Save(saveInfo.DataToInsert, saveInfo.DataToUpdate, saveInfo.DataToDelete, true);
var insertUpdateItems = ConcatenateNullable(saveInfo.DataToInsert, saveInfo.DataToUpdate);
// We rely that this call will only use IDs of the items, because other data might be dirty.
if (insertUpdateItems != null)
{
if (!_serverCommandsUtility.CheckAllItemsWithinFilter(insertUpdateItems, RowPermissionsWriteInfo.FilterName, genericRepository))
{
_persistenceTransaction.DiscardChanges();
throw new UserException("You are not authorized to write some or all of the provided data. Insufficient permissions to apply the new data.", "DataStructure:" + saveInfo.Entity + ".");
}
}
return(new CommandResult
{
Message = "Command executed",
Success = true
});
}
public ProcessingResult ExecuteInner(IList <ICommandInfo> commands)
{
var authorizationMessage = _authorizationManager.Authorize(commands);
if (!String.IsNullOrEmpty(authorizationMessage))
{
return new ProcessingResult
{
UserMessage = authorizationMessage,
SystemMessage = authorizationMessage,
Success = false
}
}
;
var commandResults = new List <CommandResult>();
try
{
foreach (var commandInfo in commands)
{
_logger.Trace("Executing command {0}: {1}.", commandInfo.GetType().Name, commandInfo);
var implementations = _commandRepository.GetImplementations(commandInfo.GetType());
if (implementations.Count() == 0)
{
throw new FrameworkException(string.Format(CultureInfo.InvariantCulture,
"Cannot execute command \"{0}\". There are no command implementations loaded that implement the command.", commandInfo));
}
if (implementations.Count() > 1)
{
throw new FrameworkException(string.Format(CultureInfo.InvariantCulture,
"Cannot execute command \"{0}\". It has more than one implementation registered: {1}.", commandInfo, String.Join(", ", implementations.Select(i => i.GetType().Name))));
}
var commandImplementation = implementations.Single();
_logger.Trace("Executing implementation {0}.", commandImplementation.GetType().Name);
var commandObserversForThisCommand = _commandObservers.GetImplementations(commandInfo.GetType());
var stopwatch = Stopwatch.StartNew();
foreach (var commandObeserver in commandObserversForThisCommand)
{
commandObeserver.BeforeExecute(commandInfo);
_performanceLogger.Write(stopwatch, () => "ProcessingEngine: CommandObeserver.BeforeExecute " + commandObeserver.GetType().FullName);
}
var commandResult = commandImplementation.Execute(commandInfo);
_performanceLogger.Write(stopwatch, () => "ProcessingEngine: Command executed (" + commandInfo.GetType().FullName + ").");
_logger.Trace("Execution result message: {0}", commandResult.Message);
if (commandResult.Success)
{
foreach (var commandObeserver in commandObserversForThisCommand)
{
commandObeserver.AfterExecute(commandInfo, commandResult);
_performanceLogger.Write(stopwatch, () => "ProcessingEngine: CommandObeserver.AfterExecute " + commandObeserver.GetType().FullName);
}
}
commandResults.Add(commandResult);
if (!commandResult.Success)
{
_persistenceTransaction.DiscardChanges();
var systemMessage = String.Format(CultureInfo.InvariantCulture, "Command failed. {0} {1} {2}", commandInfo.GetType().Name, commandInfo, commandImplementation.GetType().Name);
return(LogAndReturnError(commandResults, systemMessage + " " + commandResult.Message, systemMessage, commandResult.Message));
}
}
return(new ProcessingResult
{
CommandResults = commandResults.ToArray(),
Success = true,
SystemMessage = null
});
}
catch (Exception ex)
{
_persistenceTransaction.DiscardChanges();
if (ex is TargetInvocationException && ex.InnerException is RhetosException)
{
_logger.Trace(() => "Unwrapping exception: " + ex.ToString());
ex = ex.InnerException;
}
string userMessage = null;
string systemMessage = null;
var sqlException = SqlUtility.InterpretSqlException(ex);
if (sqlException != null)
{
ex = sqlException;
}
if (ex is UserException)
{
userMessage = ex.Message;
systemMessage = (ex as UserException).SystemMessage;
}
else if (ex is ClientException)
{
userMessage = _clientExceptionUserMessage;
systemMessage = ex.Message;
}
else
{
userMessage = null;
systemMessage = "Internal server error occurred (" + ex.GetType().Name + "). See RhetosServer.log for more information.";
}
return(LogAndReturnError(
commandResults,
"Command execution error: ",
systemMessage,
userMessage,
ex));
}
}
public ProcessingResult ExecuteInner(IList <ICommandInfo> commands, Guid executionId)
{
var authorizationMessage = _authorizationManager.Authorize(commands);
if (!string.IsNullOrEmpty(authorizationMessage))
{
return new ProcessingResult
{
UserMessage = authorizationMessage,
SystemMessage = authorizationMessage,
Success = false
}
}
;
var commandResults = new List <CommandResult>();
var stopwatch = Stopwatch.StartNew();
foreach (var commandInfo in commands)
{
try
{
_logger.Trace("Executing command {0}.", commandInfo);
var implementations = _commandRepository.GetImplementations(commandInfo.GetType());
if (implementations.Count() == 0)
{
throw new FrameworkException(string.Format(CultureInfo.InvariantCulture,
"Cannot execute command \"{0}\". There are no command implementations loaded that implement the command.", commandInfo));
}
if (implementations.Count() > 1)
{
throw new FrameworkException(string.Format(CultureInfo.InvariantCulture,
"Cannot execute command \"{0}\". It has more than one implementation registered: {1}.", commandInfo, String.Join(", ", implementations.Select(i => i.GetType().Name))));
}
var commandImplementation = implementations.Single();
_logger.Trace("Executing implementation {0}.", commandImplementation.GetType().Name);
var commandObserversForThisCommand = _commandObservers.GetImplementations(commandInfo.GetType());
stopwatch.Restart();
foreach (var commandObeserver in commandObserversForThisCommand)
{
commandObeserver.BeforeExecute(commandInfo);
_performanceLogger.Write(stopwatch, () => "ProcessingEngine: CommandObeserver.BeforeExecute " + commandObeserver.GetType().FullName);
}
CommandResult commandResult;
try
{
commandResult = commandImplementation.Execute(commandInfo);
}
finally
{
_performanceLogger.Write(stopwatch, () => "ProcessingEngine: Command executed (" + commandImplementation + ": " + commandInfo + ").");
}
_logger.Trace("Execution result message: {0}", commandResult.Message);
if (commandResult.Success)
{
foreach (var commandObeserver in commandObserversForThisCommand)
{
commandObeserver.AfterExecute(commandInfo, commandResult);
_performanceLogger.Write(stopwatch, () => "ProcessingEngine: CommandObeserver.AfterExecute " + commandObeserver.GetType().FullName);
}
}
commandResults.Add(commandResult);
if (!commandResult.Success)
{
_persistenceTransaction.DiscardChanges();
var systemMessage = "Command failed: " + commandImplementation + ", " + commandInfo + ".";
return(LogAndReturnError(commandResults, systemMessage + " " + commandResult.Message, systemMessage, commandResult.Message, null, commands, executionId));
}
}
catch (Exception ex)
{
_persistenceTransaction.DiscardChanges();
if (ex is TargetInvocationException && ex.InnerException is RhetosException)
{
_logger.Trace(() => "Unwrapping exception: " + ex.ToString());
ex = ex.InnerException;
}
string userMessage = null;
string systemMessage = null;
ex = _sqlUtility.InterpretSqlException(ex) ?? ex;
if (ex is UserException)
{
var userException = (UserException)ex;
userMessage = _localizer[userException.Message, userException.MessageParameters]; // TODO: Remove this code after cleaning the double layer of exceptions in the server response call stack.
systemMessage = userException.SystemMessage;
}
else if (ex is ClientException)
{
userMessage = _clientExceptionUserMessage;
systemMessage = ex.Message;
}
else
{
userMessage = null;
systemMessage = FrameworkException.GetInternalServerErrorMessage(_localizer, ex);
}
return(LogAndReturnError(commandResults, "Command failed: " + commandInfo + ".", systemMessage, userMessage, ex, commands, executionId));
}
}
return(new ProcessingResult
{
CommandResults = commandResults.ToArray(),
Success = true,
SystemMessage = null
});
}