/// <summary> /// Creates a Message from a FIX string /// </summary> /// <param name="msgstr"></param> /// <param name="validate"></param> /// <param name="sessionDD"></param> /// <param name="appDD"></param> /// <param name="msgFactory">If null, any groups will be constructed as generic Group objects</param> public void FromString(string msgstr, bool validate, DataDictionary.DataDictionary sessionDD, DataDictionary.DataDictionary appDD, IMessageFactory msgFactory) { Clear(); string msgType = ""; bool expectingHeader = true; bool expectingBody = true; int count = 0; int pos = 0; DataDictionary.IFieldMapSpec msgMap = null; if (FixMessageDescriptorEnabled) { _descriptor = new FixMessageDescriptor(); if (appDD != null) _descriptor.FixVersion = appDD.Version; } while (pos < msgstr.Length) { StringField f = ExtractField(msgstr, ref pos, sessionDD, appDD); if (validate && (count < 3) && (Header.HEADER_FIELD_ORDER[count++] != f.Tag)) throw new InvalidMessage("Header fields out of order"); if (IsHeaderField(f.Tag, sessionDD)) { if (!expectingHeader) { if (0 == field_) field_ = f.Tag; validStructure_ = false; } if (Tags.MsgType.Equals(f.Tag)) { msgType = string.Copy(f.Obj); if (appDD != null) { msgMap = appDD.GetMapForMessage(msgType); if (FixMessageDescriptorEnabled) { QuickFix.DataDictionary.DDMap map = null; if (appDD != null && appDD.Messages.TryGetValue(f.Obj, out map)) { _descriptor.MessageType = map.MessageName; } } } } if (!this.Header.SetField(f, false)) this.Header.RepeatedTags.Add(f); if ((null != sessionDD) && sessionDD.Header.IsGroup(f.Tag)) { if (FixMessageDescriptorEnabled) { _currentGroupField = new GroupFixFieldInfo(); _currentGroupField.Tag = f.Tag; DataDictionary.DDField field = null; if (sessionDD != null && sessionDD.FieldsByTag.TryGetValue(f.Tag, out field)) { _currentGroupField.Name = field.Name; } _currentGroupField.Value = f.getValue(); _currentGroupField.EnumValue = GetEnumValueFromField(f, field); _descriptor.Fields.Add(_currentGroupField); } pos = SetGroup(f, msgstr, pos, this.Header, sessionDD.Header.GetGroupSpec(f.Tag), sessionDD, appDD, msgFactory); } else { if (FixMessageDescriptorEnabled) { AddFixFieldInfo(f, sessionDD); } } } else if (IsTrailerField(f.Tag, sessionDD)) { expectingHeader = false; expectingBody = false; if (!this.Trailer.SetField(f, false)) this.Trailer.RepeatedTags.Add(f); if ((null != sessionDD) && sessionDD.Trailer.IsGroup(f.Tag)) { if (FixMessageDescriptorEnabled) { _currentGroupField = new GroupFixFieldInfo(); _currentGroupField.Tag = f.Tag; DataDictionary.DDField field = null; if (sessionDD.FieldsByTag.TryGetValue(f.Tag, out field)) { _currentGroupField.Name = field.Name; } _currentGroupField.Value = f.getValue(); _currentGroupField.EnumValue = GetEnumValueFromField(f, field); _descriptor.Fields.Add(_currentGroupField); } pos = SetGroup(f, msgstr, pos, this.Trailer, sessionDD.Trailer.GetGroup(f.Tag), sessionDD, appDD, msgFactory); } else { if (FixMessageDescriptorEnabled) { AddFixFieldInfo(f, sessionDD); } } } else { if (!expectingBody) { if (0 == field_) field_ = f.Tag; validStructure_ = false; } expectingHeader = false; if (!SetField(f, false)) { this.RepeatedTags.Add(f); } if ((null != msgMap) && (msgMap.IsGroup(f.Tag))) { if (FixMessageDescriptorEnabled) { _currentGroupField = new GroupFixFieldInfo(); _currentGroupField.Tag = f.Tag; DataDictionary.DDField field = null; if (sessionDD != null && sessionDD.FieldsByTag.TryGetValue(f.Tag, out field)) { _currentGroupField.Name = field.Name; } _currentGroupField.Value = f.getValue(); _currentGroupField.EnumValue = GetEnumValueFromField(f, field); _descriptor.Fields.Add(_currentGroupField); } pos = SetGroup(f, msgstr, pos, this, msgMap.GetGroupSpec(f.Tag), sessionDD, appDD, msgFactory); } else { if (FixMessageDescriptorEnabled) { AddFixFieldInfo(f, appDD); } } } } if (validate) { Validate(); } }
public override void Clear() { _descriptor = null; _currentGroupField = null; field_ = 0; this.Header.Clear(); base.Clear(); this.Trailer.Clear(); }