public void SetFieldEncoder(int fieldNumber, ISOFieldEncoder encoder)
{
if (_fields != null)
{
if (_fields.ContainsKey(fieldNumber))
{
_fields[fieldNumber] = encoder;
}
}
}
protected void ReadConfigurationData(string xmlData)
{
XmlDocument xDoc = new XmlDocument();
xDoc.LoadXml(xmlData);
XmlNodeList fields = xDoc.GetElementsByTagName("isofield");
if (fields != null)
{
_fields = new Hashtable(fields.Count);
// Read xml file content and create the list with the configuration for each field
for (int i = 0; i < fields.Count; i++)
{
try {
int id = Convert.ToInt32(fields[i].Attributes["id"].Value);
int len = Convert.ToInt32(fields[i].Attributes["len"].Value);
string name = fields[i].Attributes["name"].Value;
string className = fields[i].Attributes["class"].Value;
// Create encoder instance
// TODO: Change for a more generic method capable of loading classes from other assemblies
ISOFieldEncoder fEncoder = (ISOFieldEncoder)Activator.CreateInstance(Type.GetType(className), len, name);
_fields.Add(id, fEncoder);
}
catch (Exception e) {
throw new ISOException(string.Format("Exception loading iso field configuration (Index={0})", i), e);
}
}
}
else
{
throw new ISOException(string.Format("Packager configuration file {0} is not valid", FileName));
}
}
public void SetFieldEncoder(int fieldNumber, ISOFieldEncoder encoder)
{
if (_fields != null) {
if (_fields.ContainsKey(fieldNumber)) {
_fields[fieldNumber] = encoder;
}
}
}
public byte[] Encode(ISOComponent component)
{
// Loop in each field, encode it a put into a list, where the maximum number may be 128
List <byte[]> list = new List <byte[]>(128);
SortedList <int, object> children = component.GetChildren();
if (children != null)
{
int len = 0;
byte[] b;
byte[] header = null;
ISOComponent c;
// if it's message get header length
if (component is ISOMessage)
{
if (HeaderLength > 0 && ((ISOMessage)component).Header != null)
{
header = ((ISOMessage)component).Header.Value;
if (header != null)
{
len += header.Length;
}
}
}
// MTI
c = (ISOComponent)children[0];
if (FirstField > 0 && c != null)
{
b = ((ISOFieldEncoder)_fields[0]).Encode(c);
len += b.Length;
list.Add(b);
}
// Bitmap
if (HasBitmap)
{
c = (ISOComponent)children[-1];
if (c != null)
{
b = GetBitmapEncoder().Encode(c);
len += b.Length;
list.Add(b);
}
}
// Fields
foreach (int k in children.Keys)
{
if (k >= FirstField)
{
if ((c = (ISOComponent)children[k]) != null)
{
ISOFieldEncoder fe = (ISOFieldEncoder)_fields[k];
if (fe == null)
{
throw new ISOException(string.Format("No encoder defined for field {0}", k));
}
b = fe.Encode(c);
len += b.Length;
list.Add(b);
}
}
}
// TODO: ++ Process Extended Bitmap ++
// Build final message
int count = 0;
byte[] msg = new byte[len];
if (header != null)
{
Array.Copy(header, 0, msg, 0, header.Length);
count += header.Length;
}
for (int i = 0; i < list.Count; i++)
{
Array.Copy(list[i], 0, msg, count, list[i].Length);
count += list[i].Length;
}
return(msg);
}
return(null);
}
