/// <summary>
/// parses a single line and queues/executes it
/// </summary>
/// <param name="line"></param>
/// <param name="queue">true if the command is to be enqueue. False mean it should be ran immediately</param>
/// <returns></returns>
public static LineSyntax executeLine(string line, bool queue)
{
//regex init
Regex rgxComment = new Regex(RGX_COMMENT, RegexOptions.IgnoreCase);
Regex rgxStart = new Regex(RGX_START, RegexOptions.IgnoreCase);
Regex rgxInterval = new Regex(RGX_INTERVAL, RegexOptions.IgnoreCase);
Regex rgxStatus = new Regex(RGX_STATUS, RegexOptions.IgnoreCase);
Regex rgxCrash = new Regex(RGX_CRASH, RegexOptions.IgnoreCase);
Regex rgxFreeze = new Regex(RGX_FREEZE, RegexOptions.IgnoreCase);
Regex rgxUnfreeze = new Regex(RGX_UNFREEZE, RegexOptions.IgnoreCase);
Regex rgxWait = new Regex(RGX_WAIT, RegexOptions.IgnoreCase);
Regex rgxLog = new Regex(RGX_LOG, RegexOptions.IgnoreCase);
Regex rgxSemantics = new Regex(RGX_SEMANTICS, RegexOptions.IgnoreCase);
Regex rgxConf = new Regex(RGX_CONF, RegexOptions.IgnoreCase);
//comment
if (rgxComment.IsMatch(line))
{
Logger.debugWriteLine("Parser: return match COMMENT");
return(LineSyntax.COMMENT);
}
//hack just in case the config file has more spaces than it should, such as the sample one
line = line.Replace(", ", ",");
String[] fields = line.Split(' ');
ICommand command = null;
//start
if (rgxStart.IsMatch(line))
{
String opID = fields[1];
command = new Start(opID);
} //interval
else if (rgxInterval.IsMatch(line))
{
String opID = fields[1];
int millisec = Int32.Parse(fields[2]);
command = new Interval(opID, millisec);
} //status
else if (rgxStatus.IsMatch(line))
{
command = new Status();
} //crash
else if (rgxCrash.IsMatch(line))
{
String opID = fields[1];
int rep = Int32.Parse(fields[2]);
command = new Crash(opID, rep);
} //unfreeze
else if (rgxUnfreeze.IsMatch(line))
{
String opID = fields[1];
int rep = Int32.Parse(fields[2]);
command = new Unfreeze(opID, rep);
} //freeze
else if (rgxFreeze.IsMatch(line))
{
String opID = fields[1];
int rep = Int32.Parse(fields[2]);
command = new Freeze(opID, rep);
} //wait
else if (rgxWait.IsMatch(line))
{
int millisec = Int32.Parse(fields[1]);
command = new Wait(millisec);
}
else if (rgxLog.IsMatch(line))
{
String loggingLevel = fields[1];
command = new Log(loggingLevel);
}
else if (rgxSemantics.IsMatch(line))
{
String semantics = fields[1];
command = new SetSemantics(semantics);
}
//TODO MISSING: LOG & SEMANTICS
//configuration of operator
else if (rgxConf.IsMatch(line))
{
String opID = fields[0];
String[] inputOps = fields[2].Split(',');
int repFact = Int32.Parse(fields[4]);
String routing = fields[6];
String[] addresses = fields[8].Split(',');
String[] opSpec = fields.Skip(10).ToArray();
command = new ConfigureOperator(opID, inputOps, repFact, routing, addresses, opSpec);
} //invalid command
else
{
Logger.debugWriteLine("Parser: return match INVALID");
return(LineSyntax.INVALID);
}
//store commands
if (command != null)
{
if (queue)
{
Logger.debugWriteLine("Parser: Enqueue");
PuppetMaster.Commands.Enqueue(command);
}
else
{
Logger.debugWriteLine("Parser: execute");
command.execute();
}
} // FIXME
else
{
Logger.debugWriteLine("Parser: return match INVALID");
return(LineSyntax.INVALID);
}
Logger.debugWriteLine("Parser: return match VALID");
return(LineSyntax.VALID);
}