internal CommandOutput ExecuteCommand(ServiceRequestContext context)
{
var userTokenFromCache = CurrentHostContext.Default.Cache.Get<AuthenticationOutput>(context.Token);
CommandOutput commandOutput = null;
try
{
var input = new CommandInput(new CommandArgs(context.Command));
input.Add("Request.SessionId", context.SessionId);
if (input.Keyword == null)
throw new InvalidDataException("Could not parse the command");
var firstKeyword = input.Keyword.ToLower();
if (_commandFactory.Commands.Any(x => IsCommand(firstKeyword, x, userTokenFromCache)))
{
var commandObject =
_commandFactory.Commands.FirstOrDefault(x => IsCommand(firstKeyword, x, userTokenFromCache));
if (userTokenFromCache != null) // enrich with UserId
input.AssociateUserId(userTokenFromCache.UserId.GetValueOrDefault(-1));
if (RequiresCaching(commandObject))
{
// cache it
commandOutput = CurrentHostContext.Default.Cache.Get(context.Command, () =>
ExecuteCommandInternal(input, commandObject));
}
else
{
commandOutput = ExecuteCommandInternal(input, commandObject);
}
AuditExecution(userTokenFromCache, input, commandObject);
// Execute all subcommands
commandOutput.SubCommands.ForEach(x => ExecuteCommand(new ServiceRequestContext
{
Command = x,
SessionId = context.SessionId,
Token = context.Token
}));
}
else
{
commandOutput = _helpCommand.OnExecute(input);
}
}
catch (DbEntityValidationException e)
{
var builder = new StringBuilder();
foreach (var eve in e.EntityValidationErrors)
{
builder.AppendFormat("Entity of type \"{0}\" in state \"{1}\" has the following validation errors:",
eve.Entry.Entity.GetType().Name, eve.Entry.State).AppendLine();
foreach (var ve in eve.ValidationErrors)
{
builder.AppendFormat("- Property: \"{0}\", Error: \"{1}\"",
ve.PropertyName, ve.ErrorMessage).AppendLine();
}
}
CurrentHostContext.Default.Log.Error(builder.ToString());
commandOutput = new CommandOutput
{
MessageType = CommandOutput.DisplayMessageType.Error,
DisplayMessage = "Errors: " + builder
};
}
catch (Exception ex)
{
CurrentHostContext.Default.Log.Error(ex.GetDetails());
commandOutput = new CommandOutput
{
MessageType = CommandOutput.DisplayMessageType.Error,
DisplayMessage = "Errors: " + ex.GetDetails()
};
}
return commandOutput;
}
internal string[] GetCommandsStartingWith(ServiceRequestContext context)
{
string lowerCommand = context.Command.ToLowerInvariant();
return
_commandFactory.Commands.Where(x => x.Command.ToLowerInvariant().StartsWith(lowerCommand))
.Select(x => x.Keyword)
.OrderBy(x => x.Length)
.ToArray();
}