private static K2Field CreateK2Field <TValueType>(object value)
{
ValueTypePart fieldPart = new ValueTypePart();
fieldPart.Value = value;
fieldPart.ValueType = typeof(TValueType);
return(CreateK2Field <TValueType>(fieldPart));
}
private static ValueTypePart CreateValueTypePart(object value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
if (!value.GetType().IsValueType)
{
throw new InvalidOperationException("Value type expected.");
}
ValueTypePart fieldPart = new ValueTypePart();
fieldPart.Value = value;
fieldPart.ValueType = value.GetType();
return(fieldPart);
}
public static K2Field CreateConfigSettingField <T>(K2Field k2field)
{
K2Field newField = new K2Field();
if (k2field != null)
{
newField.Parts.AddRange(k2field.Parts.ToArray());
}
if (newField.Parts.Count == 0)
{
ValueTypePart val = new ValueTypePart();
val.Value = default(T);
newField.Parts.Add(val);
}
newField.ValueType = typeof(T);
foreach (K2FieldPart part in newField.Parts)
{
part.ValueType = typeof(T);
}
return(newField);
}
public static K2Field CreateK2FieldFormat(string format, params object[] args)
{
K2Field field = new K2Field();
field.ValueType = typeof(string);
if (args.Length == 0)
{
field.Value = format;
return(field);
}
int state = 0;
StringBuilder buffer = new StringBuilder();
foreach (char c in format)
{
switch (c)
{
case '{':
if (state != 0)
{
throw new FormatException("Input string was not in a correct format.");
}
state = 1;
break;
case '}':
if (state != 2)
{
throw new FormatException("Input string was not in a correct format.");
}
state = 3;
break;
}
switch (state)
{
case 0: // normal
buffer.Append(c);
break;
case 1: // begin indexer
if (buffer.Length > 0)
{
if (field.Parts.Count > 0 && field.Parts[field.Parts.Count - 1] is ValueTypePart)
{
field.Parts[field.Parts.Count - 1].Value = string.Concat(field.Parts[field.Parts.Count - 1].Value, buffer.ToString());
}
else
{
field.Parts.Add(new ValueTypePart(buffer.ToString()));
}
}
buffer = new StringBuilder();
state = 2;
break;
case 2: // inside indexer
buffer.Append(c);
break;
case 3: // end indexer
int idx = int.Parse(buffer.ToString());
if (args[idx] == null)
{
throw new InvalidOperationException("One of the arguments have a null value.");
}
K2FieldPart partToAdd = null;
if (args[idx].GetType().IsValueType)
{
partToAdd = new ValueTypePart(args[idx].ToString());
}
else if (args[idx] is K2FieldPart)
{
partToAdd = args[idx] as K2FieldPart;
}
else if (args[idx] is string)
{
partToAdd = new ValueTypePart(args[idx] as string);
}
else
{
throw new InvalidOperationException("One of the arguments have is an unsupported type.");
}
if (field.Parts.Count >= 1 && partToAdd is ValueTypePart)
{
// If the previous field part is also a value type part
// merge the values
if (field.Parts[field.Parts.Count - 1] is ValueTypePart)
{
field.Parts[field.Parts.Count - 1].Value = string.Concat(field.Parts[field.Parts.Count - 1].Value, partToAdd.Value);
}
}
else
{
field.Parts.Add(partToAdd);
}
buffer = new StringBuilder();
state = 0;
break;
}
}
// process last part of the buffer
if (buffer.Length > 0)
{
if (field.Parts.Count == 0)
{
field.Parts.Add(new ValueTypePart(buffer.ToString()));
}
else if (field.Parts[field.Parts.Count - 1] is ValueTypePart)
{
field.Parts[field.Parts.Count - 1].Value = string.Concat(field.Parts[field.Parts.Count - 1].Value, buffer.ToString());
}
else
{
field.Parts.Add(new ValueTypePart(buffer.ToString()));
}
}
return(field);
}