public Message(Message mesg)
{
if (mesg == null)
{
this.Name = "unknown";
this.MessageNumber = (ushort)MessageNum.Invalid;
return;
}
this.Name = mesg.Name;
this.MessageNumber = mesg.MessageNumber;
this.LocalNum = mesg.LocalNum;
this.systemTimeOffset = mesg.systemTimeOffset;
foreach (Field field in mesg.FieldsList)
{
if (field.GetNumValues() > 0)
{
this.FieldsList.Add(new Field(field));
}
}
foreach (var fld in mesg.DeveloperFields)
{
if (fld.GetNumValues() > 0)
{
var key = new DeveloperDataKey(fld.DeveloperDataIndex, fld.Num);
developerFields[key] = new DeveloperField(fld);
}
}
}
public void Read(Stream inStream, MesgDefinition defnMesg)
{
inStream.Position = 1;
EndianBinaryReader mesgReader = new EndianBinaryReader(inStream, defnMesg.IsBigEndian);
LocalNum = defnMesg.LocalMesgNum;
foreach (FieldDefinition fieldDef in defnMesg.GetFields())
{
// It's possible the field type found in the field definition may
// not agree with the type defined in the profile. The profile
// type will be preferred for decode.
Field field = GetField(fieldDef.Num);
if (field == null)
{
// We normally won't have fields attached to our skeleton message,
// as we add values we need to add the fields too based on the mesg,field
// combo in the profile. Must derive from the profile so the scale etc
// is correct
field = new Field(Profile.GetMesg(this.Num).GetField(fieldDef.Num));
if (field.Num == Fit.FieldNumInvalid)
{
// If there was no info in the profile the FieldNum will get set to invalid
// so preserve the unknown fields info while we know it
field.Num = fieldDef.Num;
field.SetType(fieldDef.Type);
}
SetField(field);
}
ReadFieldValue(field, fieldDef.Size, mesgReader);
}
foreach (DeveloperFieldDefinition fldDef in defnMesg.DeveloperFieldDefinitions)
{
DeveloperField fld = GetDeveloperField(fldDef.FieldNum, fldDef.DeveloperDataIndex);
if (ReferenceEquals(fld, null))
{
fld = new DeveloperField(fldDef);
SetDeveloperField(fld);
}
ReadFieldValue(fld, fldDef.Size, mesgReader);
}
}
public void Write(Stream outStream, MesgDefinition mesgDef)
{
if (mesgDef == null)
{
mesgDef = new MesgDefinition(this);
}
EndianBinaryWriter bw = new EndianBinaryWriter(outStream, mesgDef.IsBigEndian);
bw.Write(LocalNum);
foreach (FieldDefinition fieldDef in mesgDef.GetFields())
{
Field field = GetField(fieldDef.Num);
if (null == field)
{
field = Profile.GetField(this.Num, fieldDef.Num);
if (null != field)
{
FieldsList.Add(field);
}
else
{
//Field does not exist in profile, continue to next field
continue;
}
}
WriteField(field, fieldDef.Size, bw);
}
foreach (DeveloperFieldDefinition fieldDef in mesgDef.DeveloperFieldDefinitions)
{
DeveloperField field = GetDeveloperField(fieldDef.FieldNum, fieldDef.DeveloperDataIndex);
if (field == null)
{
field = new DeveloperField(fieldDef);
SetDeveloperField(field);
}
WriteField(field, fieldDef.Size, bw);
}
}
public void SetDeveloperField(DeveloperField field)
{
var devKey = new DeveloperDataKey(field.DeveloperDataIndex, field.Num);
developerFields[devKey] = field;
}
public void Read(Stream inStream, MessageDefinition defnMessage)
{
inStream.Position = 1;
EndianBinaryReader mesgReader = new EndianBinaryReader(inStream, defnMessage.IsBigEndian);
LocalNum = defnMessage.LocalMessageNum;
foreach (FieldDefinition fieldDef in defnMessage.GetFields())
{
bool read = true;
// It's possible the field type found in the field definition may
// not agree with the type defined in the profile. The profile
// type will be preferred for decode.
Field field = GetField(fieldDef.Num);
if (field == null)
{
// We normally won't have fields attached to our skeleton message,
// as we add values we need to add the fields too based on the mesg,field
// combo in the profile. Must derive from the profile so the scale etc
// is correct
field = new Field(Profile.GetMessage(this.MessageNumber).GetField(fieldDef.Num));
if (field.Num == Fit.FieldNumInvalid)
{
// If there was no info in the profile the FieldNum will get set to invalid
// so preserve the unknown fields info while we know it
field.Num = fieldDef.Num;
field.SetType(fieldDef.Type);
}
SetField(field);
}
if (field.Type != fieldDef.Type)
{
int fieldSize = Fit.BaseType[field.Type & Fit.BaseTypeNumMask].size;
int defSize = Fit.BaseType[fieldDef.Type & Fit.BaseTypeNumMask].size;
if (defSize < fieldSize)
{
field.SetType(fieldDef.Type);
}
else if (defSize != fieldSize)
{
// Demotion is hard. Don't read the field if the
// sizes are different. Use the profile type if the
// signedness of the field has changed.
read = false;
}
}
if (read)
{
ReadFieldValue(field, fieldDef.Size, mesgReader);
}
else
{
// Skip the bytes for the field if we aren't going to bother reading them
mesgReader.ReadBytes(fieldDef.Size);
}
}
foreach (DeveloperFieldDefinition fldDef in defnMessage.DeveloperFieldDefinitions)
{
DeveloperField fld = GetDeveloperField(fldDef.FieldNum, fldDef.DeveloperDataIndex);
if (ReferenceEquals(fld, null))
{
fld = new DeveloperField(fldDef);
SetDeveloperField(fld);
}
ReadFieldValue(fld, fldDef.Size, mesgReader);
}
}
public DeveloperField(DeveloperField other)
: base(other)
{
m_definition = other.m_definition;
}