public CommandSet ReadCommandsFromFile(string filepath)
{
try
{
if (!File.Exists(filepath))
{
return(null);
}
SettingsCollection settings = null;
try
{
settings = (new SettingsFileLoader()).ReadSettingsFile(filepath);
}
catch (Exception exc)
{
log.WriteError("Exception reading commands from file '{0}': {1}", filepath, exc);
//return new CommandSet(new List<Command>(), new DateTime());
return(null);
}
string fileVersion = SettingHelpers.GetSingleStringValue(settings, "FileVersion");
if (!fileVersion.StartsWith(MASTER_FILE_VERSION_COMPAT))
{
log.WriteError(
"Incompatible command file, version: {0}",
fileVersion);
return(null);
}
DateTime timestamp = settings.GetValue("Timestamp").GetUtcDateParam("TimeUtc");
if (DateTime.UtcNow - timestamp > TimeSpan.FromHours(1))
{
log.WriteInfo(
"Ignoring command file older than one hour, timestamp={0:O}",
timestamp);
return(null);
}
DateTime acknowledgement = SettingHelpers.GetSingleDateTimeValue(settings, "AcknowledgementUtc");
int ncmds = SettingHelpers.GetSingleIntValue(settings, "CommandCount");
List <Command> cmdlist = new List <Command>(ncmds);
for (int i = 0; i < ncmds; ++i)
{
string key = string.Format("Command{0}", i + 1);
var cmdData = settings.GetValue(key);
DateTime time = cmdData.GetDateParam("TimeStampUtc");
string cmdString = cmdData.GetStringParam("CommandString");
var cmd = new Command(time, cmdString);
cmdlist.Add(cmd);
}
CommandSet cmdset = new CommandSet(cmdlist, acknowledgement);
return(cmdset);
}
catch (Exception exc)
{
log.WriteError("Exception reading command file: {0}", exc);
return(null);
}
}