private static List<Message> ParseBuffer(bool asEvents)
{
List<Message> result = new List<Message>();
string pattern = !asEvents ?
@"<REPLY\s(?<Command>[^>]+)>(?<Answer>[^<]*)<END\s(?<ResultCode>\d+)\s\((?<ResultString>[^>]+)\)>" :
@"<EVENT\s(?<ID>[\d+,^>]+)>(?<Answer>[^<]*)<END\s(?<ResultCode>\d+)\s\((?<ResultString>[^>]+)\)>";
Regex r = new Regex(pattern, RegexOptions.IgnoreCase);
MatchCollection entries = r.Matches(buffer);
if (entries.Count > 0)
{
buffer = r.Replace(buffer, "");
foreach (Match entry in entries)
{
string[] bodyStrings = entry.Groups["Answer"].Value.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
Message msg = new Message()
{
Type = !asEvents ? MessageType.Response : MessageType.Event,
RequestCommand = !asEvents ? entry.Groups["Command"].Value : null,
EventObjectID = !asEvents ? -1 : int.Parse(entry.Groups["ID"].Value),
Body = new List<string>(bodyStrings),
ResultCode = int.Parse(entry.Groups["ResultCode"].Value),
ResultString = entry.Groups["ResultString"].Value,
};
result.Add(msg);
}
}
return result;
}
private void Process(Message msg)
{
isValueFromMessage = true;
if (msg.RequestCommand == Command.Get(ID, OptionDelay))
ProcessDelay(msg.Body[0]);
isValueFromMessage = false;
}
protected override bool DelegateEvent(Message msg)
{
//foreach (FeedbackModule item in Items)
// if (item.ProcessEvent(msg))
// return true;
return false;
}
protected override bool DelegateReply(Message msg)
{
foreach (Accessory item in Items)
if (item.ProcessReply(msg))
return true;
return false;
}
protected void NotifyCommandError(Message message)
{
if (CommandError != null)
CommandError(this, new MessageEventArgs(message));
}
protected override bool DelegateReply(Message msg)
{
foreach (FeedbackModule item in Items)
if (item.ProcessReply(msg))
return true;
return false;
}
protected override void ProcessReply(Message msg)
{
if (msg.RequestCommand == Command.QueryObjects(ID, Accessory.OptionName1, Accessory.OptionName2, Accessory.OptionAddressExt))
ProcessQueryObjects(msg.Body);
//else if (msg.RequestCommand == Command.Create(ID, OptionAppend))
// ProcessAppendCreated(msg.Body);
//else if (msg.RequestCommand.Contains("delete"))
// ProcessDelete(msg.RequestCommand);
}
protected override void ProcessEvent(Message msg)
{
ProcessListChanged(msg.Body);
}
public MessageEventArgs(Message message)
{
Message = message;
}
internal virtual bool ProcessCommandError(Message msg) // returns true if error is handled
{
return false;
}
private void Process(Message msg)
{
isValueFromMessage = true;
foreach (string str in msg.Body)
ProcessData(str);
isValueFromMessage = false;
}
protected override void ProcessReply(Message msg)
{
if (msg.RequestCommand == Command.QueryObjects(ID))
ProcessQueryObjects(msg.Body);
}
internal bool ProcessReply(Message msg) // returns true if msg is processed;
{
foreach (string command in sentCommands)
{
if (command == msg.RequestCommand)
{
sentCommands.Remove(command);
if (msg.ResultCode != 0)
NotifyCommandError(msg);
else
{
// process only GET-commands; SET-command results are processed through their raising events in "ProcessEvent" method
if (msg.RequestCommand == Command.Request(ID.ToString(), OptionView))
IsRegisteredViewer = true;
else if (msg.RequestCommand == Command.Release(ID.ToString(), OptionView))
IsRegisteredViewer = false;
else if (msg.RequestCommand == Command.Request(ID.ToString(), OptionControl, OptionForce))
IsRegisteredControl = true;
else if (msg.RequestCommand == Command.Release(ID.ToString(), OptionControl))
IsRegisteredControl = false;
else if (msg.RequestCommand == Command.QueryObjects(ID.ToString()))
ProcessQueryObjects(msg);
else
Process(msg);
}
return true;
}
}
return false;
}
protected virtual bool DelegateEvent(Message msg)
{
return false;
}
protected virtual bool DelegateReply(Message msg)
{
return false;
}
protected virtual void ProcessEvent(Message msg)
{
}
protected virtual void ProcessReply(Message msg)
{
}
internal bool ProcessMessage(Message msg) // returns true if message is processed;
{
if (msg.Type == MessageType.Response)
{
foreach (string command in sentCommands)
if (command == msg.RequestCommand)
{
sentCommands.Remove(command);
if (msg.ResultCode != 0)
NotifyCommandError(msg);
else
{
if (msg.RequestCommand == Command.Request(ID, OptionView))
IsRegisteredViewer = true;
else if (msg.RequestCommand == Command.Release(ID, OptionView))
IsRegisteredViewer = false;
else // specific command
ProcessReply(msg);
}
return true;
}
return DelegateReply(msg); // not my command; bubble down to items (if any)
}
else if (msg.Type == MessageType.Event)
{
if (msg.EventObjectID.ToString() == ID)
{
ProcessEvent(msg);
return true;
}
else
return DelegateEvent(msg); // not my event; delegate down to items (if any)
}
return false;
}
internal bool ProcessEvent(Message msg) // returns true if msg is processed;
{
if (msg.EventObjectID == ID)
{
Process(msg);
return true;
}
return false;
}
protected override void ProcessReply(Message msg)
{
Process(msg);
}
private void ProcessQueryObjects(Message msg)
{
isValueFromMessage = true;
var newChildrenIDs = msg.Body.Select((s) => int.Parse(s));
var deletedItems = ChildrenIDs.Except(newChildrenIDs).ToList();
foreach (var item in deletedItems)
ChildrenIDs.Remove(item);
var addedItems = newChildrenIDs.Except(ChildrenIDs).ToList();
foreach (var item in addedItems)
ChildrenIDs.Add(item);
NotifyPropertyChanged("ChildrenIDs");
isValueFromMessage = false;
}
protected override void ProcessEvent(Message msg)
{
Process(msg);
}
protected override void ProcessReply(Message msg)
{
if (msg.RequestCommand == Command.QueryObjects(ID, Locomotive.OptionAddress, Locomotive.OptionName, Locomotive.OptionProtocol))
ProcessQueryObjects(msg.Body);
//else if (msg.SourceCommand.Contains("create"))
// ProcessCreate(msg.Answer);
//else if (msg.RequestCommand == Command.Create(ID, OptionAppend))
// ProcessAppendCreated(msg.Body);
//else if (msg.RequestCommand.Contains("delete"))
// ProcessDelete(msg.RequestCommand);
}
protected override void ProcessReply(Message msg)
{
if (msg.RequestCommand == Command.QueryObjects(ID, FeedbackModule.OptionPorts))
ProcessIDsPortCounts(msg.Body);
//else if (msg.SourceCommand.Contains("create"))
// ProcessCreate(msg.Answer);
//else if (msg.RequestCommand.Contains("delete"))
// ProcessDelete(msg.RequestCommand);
}
protected override bool DelegateEvent(Message msg)
{
foreach (Locomotive item in Items)
if (item.ProcessEvent(msg))
return true;
return false;
}
protected override void ProcessEvent(Message msg)
{
Items.Add(new SnifferPacket(msg.Body));
}