public static T Parse <T>(string value)
{
var type = typeof(T);
if (type == typeof(TimeSpan))
{
return((T)Convert.ChangeType(VariantBase.ParseTime(value), type));
}
else
{
if (type == typeof(float))
{
return((T)Convert.ChangeType(VariantBase.ParseSingle(value), type));
}
else if (type == typeof(double))
{
return((T)Convert.ChangeType(VariantBase.ParseDouble(value), type));
}
else if (type == typeof(bool))
{
return((T)Convert.ChangeType(VariantBase.ParseBoolean(value), type));
}
else if (type == typeof(DateTime))
{
return((T)Convert.ChangeType(VariantBase.ParseDateTime(value), type));
}
else
{
return((T)Convert.ChangeType(value, type));
}
}
}
public static string ToString <T>(T value)
{
var type = typeof(T);
if (type == typeof(TimeSpan))
{
return(VariantBase.ToString((TimeSpan)Convert.ChangeType(value, type)));
}
else
{
if (type == typeof(double))
{
return(VariantBase.ToString((double)Convert.ChangeType(value, type)));
}
else if (type == typeof(bool))
{
return(VariantBase.ToString((bool)Convert.ChangeType(value, type)));
}
else if (type == typeof(DateTime))
{
return(VariantBase.ToString((DateTime)Convert.ChangeType(value, type)));
}
else
{
return(value.ToString());
}
}
}
public static T Parse <T>(string value)
{
if (typeof(T) == typeof(TimeSpan))
{
return((T)Convert.ChangeType(VariantBase.ParseTime(value), typeof(T)));
}
else
{
TypeCode typeCode = System.Type.GetTypeCode(typeof(T));
switch (typeCode)
{
case TypeCode.Single:
return((T)Convert.ChangeType(VariantBase.ParseSingle(value), typeof(T)));
case TypeCode.Double:
return((T)Convert.ChangeType(VariantBase.ParseDouble(value), typeof(T)));
case TypeCode.Boolean:
return((T)Convert.ChangeType(VariantBase.ParseBoolean(value), typeof(T)));
case TypeCode.DateTime:
return((T)Convert.ChangeType(VariantBase.ParseDateTime(value), typeof(T)));
default:
return((T)Convert.ChangeType(value, typeof(T)));
}
}
}
public static string ToString <T>(T value)
{
if (typeof(T) == typeof(TimeSpan))
{
return(VariantBase.ToString((TimeSpan)Convert.ChangeType(value, typeof(TimeSpan))));
}
else
{
TypeCode typeCode = System.Type.GetTypeCode(typeof(T));
switch (typeCode)
{
case TypeCode.Double:
return(VariantBase.ToString((double)Convert.ChangeType(value, typeof(double))));
case TypeCode.Boolean:
return(VariantBase.ToString((bool)Convert.ChangeType(value, typeof(bool))));
case TypeCode.DateTime:
return(VariantBase.ToString((DateTime)Convert.ChangeType(value, typeof(DateTime))));
default:
return(value.ToString());
}
}
}
private void WriteElement(Variant element)
{
WriteStartTag(m_stack.Peek().m_name);
switch (element.Type)
{
case VariantBase.EnumType.None:
{
WriteAttributes(m_stack.Peek().m_attributes);
break;
}
case VariantBase.EnumType.Any:
case VariantBase.EnumType.String:
case VariantBase.EnumType.Float:
case VariantBase.EnumType.Double:
case VariantBase.EnumType.Int32:
case VariantBase.EnumType.UInt32:
case VariantBase.EnumType.Int64:
case VariantBase.EnumType.UInt64:
case VariantBase.EnumType.Boolean:
case VariantBase.EnumType.Date:
case VariantBase.EnumType.Time:
case VariantBase.EnumType.DateTime:
{
WriteAttributes(m_stack.Peek().m_attributes);
WriteText(element);
break;
}
case VariantBase.EnumType.Dictionary:
case VariantBase.EnumType.Bag:
{
WriteAttributes(m_stack.Peek().m_attributes);
if ((m_mode & XmlMode.Preserve) != 0)
{
if (element.ContainsKey(XmlConst.Attributes))
{
WriteAttributes(element[XmlConst.Attributes]);
}
foreach (VariantItem item in element)
{
if (item.Key == XmlConst.Attributes)
{
continue;
}
else if (item.Key == XmlConst.Text)
{
WriteText(item.Value);
}
else if (item.Key == XmlConst.Instruction)
{
WriteInstruction(item.Value);
}
else if (item.Key == XmlConst.Comment)
{
WriteComment(item.Value);
}
else
{
Push(item.Key);
WriteElement(item.Value);
Pop();
}
}
}
else
{
foreach (VariantItem item in element)
{
Push(item.Key);
WriteVariant(item.Value);
Pop();
}
}
break;
}
case VariantBase.EnumType.List:
{
WriteAttributes(m_stack.Peek().m_attributes);
foreach (VariantItem item in element)
{
Push();
WriteVariant(item.Value);
Pop();
}
break;
}
case VariantBase.EnumType.Tuple:
{
m_stack.Peek().m_attributes.Add("size", new Variant(element.Count));
WriteAttributes(m_stack.Peek().m_attributes);
foreach (VariantItem item in element)
{
Push();
WriteVariant(item.Value);
Pop();
}
break;
}
case VariantBase.EnumType.TimeSeries:
{
WriteAttributes(m_stack.Peek().m_attributes);
foreach (VariantItem item in element)
{
Push().Add("time", new Variant(item.Time));
WriteVariant(item.Value);
Pop();
}
break;
}
case VariantBase.EnumType.Buffer:
{
WriteAttributes(m_stack.Peek().m_attributes);
m_writer.WriteBase64(element.AsBuffer(), 0, element.AsBuffer().Length);
break;
}
case VariantBase.EnumType.Object:
{
IVariantObject obj = element.AsObject();
// write class name
m_stack.Peek().m_attributes.Add("class", new Variant(obj.Class));
m_stack.Peek().m_attributes.Add("version", new Variant(obj.Version));
WriteAttributes(m_stack.Peek().m_attributes);
// write parameter dictionary
Push("params");
WriteVariant(obj.Deflate());
Pop();
break;
}
case VariantBase.EnumType.Exception:
{
WriteAttributes(m_stack.Peek().m_attributes);
VariantExceptionInfo e = element.AsException();
Push("type");
WriteElement(new Variant(e.Class));
Pop();
Push("message");
WriteElement(new Variant(e.Message));
Pop();
if (e.Source.Length != 0)
{
Push("source");
WriteElement(new Variant(e.Source));
Pop();
}
if (e.Stack.Length != 0)
{
Push("stack");
WriteElement(new Variant(e.Stack));
Pop();
}
break;
}
case VariantBase.EnumType.Array:
{
TypedArray array = element.AsArray();
m_stack.Peek().m_attributes.Add("size", new Variant(array.Count));
m_stack.Peek().m_attributes.Add("elementType", new Variant(array.ElementType.ToString()));
WriteAttributes(m_stack.Peek().m_attributes);
WriteDelegate writer = null;
switch (array.ElementType)
{
case VariantBase.EnumType.Float:
writer = o => m_writer.WriteString(VariantBase.ToString((float)o));
break;
case VariantBase.EnumType.Double:
writer = o => m_writer.WriteString(VariantBase.ToString((double)o));
break;
case VariantBase.EnumType.String:
writer = o => m_writer.WriteString((string)o);
break;
case VariantBase.EnumType.Boolean:
writer = o => m_writer.WriteString(VariantBase.ToString((bool)o));
break;
case VariantBase.EnumType.Int32:
writer = o => m_writer.WriteString(VariantBase.ToString((int)o));
break;
case VariantBase.EnumType.UInt32:
writer = o => m_writer.WriteString(VariantBase.ToString((uint)o));
break;
case VariantBase.EnumType.Int64:
writer = o => m_writer.WriteString(VariantBase.ToString((long)o));
break;
case VariantBase.EnumType.UInt64:
writer = o => m_writer.WriteString(VariantBase.ToString((ulong)o));
break;
case VariantBase.EnumType.Time:
writer = o => m_writer.WriteString(VariantBase.ToString((TimeSpan)o));
break;
case VariantBase.EnumType.DateTime:
writer = o => m_writer.WriteString(VariantBase.ToString((DateTime)o));
break;
default:
throw new VariantException("Case exhaustion: " + array.ElementType);
}
for (int i = 0; i < array.Count; ++i)
{
m_writer.WriteStartElement(XmlConst.Default);
writer(array[i]);
m_writer.WriteEndElement();
}
break;
}
case VariantBase.EnumType.DataTable:
{
#if !DISABLE_DATATABLE
DataTable dataTable = element.AsDataTable();
m_stack.Peek().m_attributes.Add("rows", new Variant(dataTable.Rows.Count));
m_stack.Peek().m_attributes.Add("columns", new Variant(dataTable.Columns.Count));
WriteAttributes(m_stack.Peek().m_attributes);
foreach (DataColumn col in dataTable.Columns)
{
Push("Column");
m_stack.Peek().m_attributes.Add("name", new Variant(col.ColumnName));
m_stack.Peek().m_attributes.Add("type", new Variant(VariantPrimitiveBase.TypeToEnum(col.DataType).ToString()));
WriteElement(new Variant());
Pop();
}
foreach (DataColumn col in dataTable.Columns)
{
Action <object> writer;
switch (VariantPrimitiveBase.TypeToEnum(col.DataType))
{
case VariantBase.EnumType.Float:
writer = o => m_writer.WriteString(VariantBase.ToString((float)o));
break;
case VariantBase.EnumType.Double:
writer = o => m_writer.WriteString(VariantBase.ToString((double)o));
break;
case VariantBase.EnumType.String:
writer = o => m_writer.WriteString((string)o);
break;
case VariantBase.EnumType.Boolean:
writer = o => m_writer.WriteString(VariantBase.ToString((bool)o));
break;
case VariantBase.EnumType.Int32:
writer = o => m_writer.WriteString(VariantBase.ToString((int)o));
break;
case VariantBase.EnumType.UInt32:
writer = o => m_writer.WriteString(VariantBase.ToString((uint)o));
break;
case VariantBase.EnumType.Int64:
writer = o => m_writer.WriteString(VariantBase.ToString((long)o));
break;
case VariantBase.EnumType.UInt64:
writer = o => m_writer.WriteString(VariantBase.ToString((ulong)o));
break;
case VariantBase.EnumType.Time:
writer = o => m_writer.WriteString(VariantBase.ToString((TimeSpan)o));
break;
case VariantBase.EnumType.DateTime:
writer = o => m_writer.WriteString(VariantBase.ToString((DateTime)o));
break;
default:
throw new VariantException("Case exhaustion: " + VariantPrimitiveBase.TypeToEnum(col.DataType));
}
Push("Column").Add("name", new Variant(col.ColumnName));
WriteStartTag("s");
WriteAttributes(m_stack.Peek().m_attributes);
foreach (DataRow row in dataTable.Rows)
{
m_writer.WriteStartElement(XmlConst.Default);
writer(row[col]);
m_writer.WriteEndElement();
}
WriteEndTag();
Pop();
}
break;
#else
throw new NotSupportedException("Datatables are not supported on this platform.");
#endif
}
default:
throw new VariantException("Case exhaustion: " + element.Type);
}
WriteEndTag();
}
protected VariantBase(VariantBase rhs)
{
EnumType type = rhs.Type;
switch (type)
{
case EnumType.None:
Value = new VariantNone();
break;
case EnumType.Boolean:
Value = new VariantPrimitive <bool>(rhs.Value as VariantPrimitive <bool>);
break;
case EnumType.Double:
Value = new VariantPrimitive <double>(rhs.Value as VariantPrimitive <double>);
break;
case EnumType.Int32:
Value = new VariantPrimitive <Int32>(rhs.Value as VariantPrimitive <Int32>);
break;
case EnumType.UInt32:
Value = new VariantPrimitive <UInt32>(rhs.Value as VariantPrimitive <UInt32>);
break;
case EnumType.Int64:
Value = new VariantPrimitive <Int64>(rhs.Value as VariantPrimitive <Int64>);
break;
case EnumType.UInt64:
Value = new VariantPrimitive <UInt64>(rhs.Value as VariantPrimitive <UInt64>);
break;
case EnumType.DateTime:
Value = new VariantPrimitive <DateTime>(rhs.Value as VariantPrimitive <DateTime>);
break;
case EnumType.Time:
Value = new VariantPrimitive <TimeSpan>(rhs.Value as VariantPrimitive <TimeSpan>);
break;
case EnumType.String:
Value = new VariantPrimitive <String>(rhs.Value as VariantPrimitive <String>);
break;
case EnumType.Any:
Value = new VariantAny(rhs.Value as VariantAny);
break;
case EnumType.List:
Value = new VariantList(rhs.Value as VariantList);
break;
case EnumType.Dictionary:
Value = new VariantDictionary(rhs.Value as VariantDictionary);
break;
case EnumType.Bag:
Value = new VariantBag(rhs.Value as VariantBag);
break;
case EnumType.TimeSeries:
Value = new VariantTimeSeries(rhs.Value as VariantTimeSeries);
break;
case EnumType.Tuple:
Value = new VariantTuple(rhs.Value as VariantTuple);
break;
case EnumType.Buffer:
Value = new VariantBuffer(rhs.Value as VariantBuffer);
break;
case EnumType.Exception:
Value = new VariantExceptionInfo(rhs.Value as VariantExceptionInfo);
break;
default:
throw new VariantException("Cannot copy variant of type: " + type.ToString());
}
}
