internal static void Encode(HL7Separators seps, System.Text.StringBuilder sb, Type type, object value)
{
if (value == null)
{
// Do nothing
}
else if (type.IsArray)
{
foreach (object element in value as Array)
{
Encode(seps, sb, type.GetElementType(), element);
sb.Append(seps.FieldRepeatSeparator);
}
// Remove the last field repeat separator.
sb.Remove(sb.Length - 1, 1);
}
else if (type.Equals(typeof(string)))
{
sb.Append(seps.Encode(value as string));
}
else
{
foreach (FieldInfo component in type.GetFields())
{
HL7Component.Encode(seps, sb, component.FieldType, component.GetValue(value));
sb.Append(seps.ComponentSeparator);
}
// Remove the last component separator.
sb.Remove(sb.Length - 1, 1);
}
}
public static object Parse(Type type, string fieldForm, HL7Separators sep)
{
object field;
// A field can be an array of repeats, or a string identifier, or a data structure with components
if (type.IsArray)
{
Type elementType = type.GetElementType();
string[] elementForm;
if (fieldForm.IndexOf(sep.FieldRepeatSeparator) == -1 && fieldForm.IndexOf(sep.ComponentSeparator) > -1 && elementType.Equals(typeof(string)))
{
elementForm = fieldForm.Split(sep.ComponentSeparator);
}
else
{
elementForm = fieldForm.Split(sep.FieldRepeatSeparator);
}
Array array = Array.CreateInstance(elementType, elementForm.Length);
for (int i = 0; i < elementForm.Length; i++)
{
array.SetValue(HL7Field.Parse(elementType, elementForm[i], sep), i);
}
field = array;
}
else if (type.Equals(typeof(string)))
{
field = sep.Decode(fieldForm);
}
else
{
FieldInfo[] components = type.GetFields();
string[] componentForm = fieldForm.Split(sep.ComponentSeparator);
int n = Math.Min(components.Length, componentForm.Length);
// Invoke the constructor that takes no parameters
field = type.GetConstructor(System.Type.EmptyTypes).Invoke(null);
for (int i = 0; i < n; i++)
{
object value = HL7Component.Parse(components[i].FieldType, componentForm[i], sep);
components[i].SetValue(field, value);
}
}
return(field);
}
