public bool WriteObject(StreamDataParserTask task, object value)
{
var strType = this.GetStringType(task.Attributes);
var lengthType = LengthType.UInt32;
var lengthAttr = task.Attributes.FirstOrDefault(a => a is StreamDataLengthAttribute) as StreamDataLengthAttribute;
if (lengthAttr != null)
{
lengthType = lengthAttr.Type;
}
switch (strType)
{
case StringType.CString:
task.Stream.WriteCString((string)value, this.GetStringEncoding(task.Attributes));
return(true);
default:
task.Stream.WriteString(
(string)value,
this.GetStringEncoding(task.Attributes),
lengthType);
return(true);
}
}
/// <summary>
/// Write data as described by task
/// </summary>
/// <param name="task">How to serialize object</param>
/// <param name="value">Object to serialize</param>
/// <returns></returns>
private static bool WriteParserData(StreamDataParserTask task, object value)
{
IStreamDataParser parser = GetParser(task.StreamType);
if (typeof(IStreamDataFinalizer).IsAssignableFrom(task.DataType))
{
var finalizer = (IStreamDataFinalizer)value;
finalizer.OnSerialize();
}
dynamic tmpVal;
// Cast value, if necessary.
if (task.StreamType != task.DataType)
{
tmpVal = Convert.ChangeType(value, task.StreamType);
}
else
{
tmpVal = value;
}
var result = parser.WriteObject(task, tmpVal);
return(result);
}
/// <summary>
/// Retrieve data as described by task
/// </summary>
/// <param name="task">How to retrieve value</param>
/// <param name="value">Value</param>
/// <returns></returns>
private static bool GetParserData(StreamDataParserTask task, out dynamic value)
{
IStreamDataParser parser = GetParser(task.StreamType);
dynamic tmpVal;
bool result;
result = parser.GetObject(task, out tmpVal);
// Cast value, if necessary.
if (task.StreamType != task.DataType)
{
value = Convert.ChangeType(tmpVal, task.DataType);
}
else
{
value = tmpVal;
}
if (typeof(IStreamDataFinalizer).IsAssignableFrom(task.DataType))
{
var finalizer = (IStreamDataFinalizer)value;
finalizer.OnDeserialize();
}
return(result);
}
public bool WriteObject(StreamDataParserTask task, object value)
{
var ver = value as Version;
task.Stream.WriteInt32(ver.Major);
task.Stream.WriteInt32(ver.Minor);
task.Stream.WriteInt32(ver.Build);
task.Stream.WriteInt32(ver.Revision);
return(true);
}
public bool WriteObject(StreamDataParserTask task, object value)
{
if (task.StreamType == typeof(DateTime))
{
var val = Misc.Unixtime((DateTime)value);
task.Stream.WriteInt64(val);
return(true);
}
else
{
return(false);
}
}
public bool GetObject(StreamDataParserTask task, out object value)
{
if (task.StreamType == typeof(DateTime))
{
var val = task.Stream.ReadInt64();
value = Misc.Unixtime(val);
return(true);
}
else
{
value = null;
return(false);
}
}
public bool GetObject(StreamDataParserTask task, out object value)
{
if (task.StreamType == typeof(MD5Checksum))
{
// 128 bits
value = new MD5Checksum(task.Stream.ReadBytes(16));
return true;
}
if (task.StreamType == typeof(SHA1Checksum))
{
// 160 bits
value = new SHA1Checksum(task.Stream.ReadBytes(20));
return true;
}
if (task.StreamType == typeof(SHA256Checksum))
{
// 256 bits
value = new SHA256Checksum(task.Stream.ReadBytes(32));
return true;
}
if (task.StreamType == typeof(SHA384Checksum))
{
// 384 bits
value = new SHA256Checksum(task.Stream.ReadBytes(48));
return true;
}
if (task.StreamType == typeof(SHA512Checksum))
{
// 512 bits
value = new SHA512Checksum(task.Stream.ReadBytes(64));
return true;
}
value = null;
return false;
}
public bool GetObject(StreamDataParserTask task, out dynamic value)
{
var strType = this.GetStringType(task.Attributes);
var lengthType = LengthType.UInt32;
var lengthAttr = task.Attributes.FirstOrDefault(a => a is StreamDataLengthAttribute) as StreamDataLengthAttribute;
if (lengthAttr != null)
{
lengthType = lengthAttr.Type;
}
switch (strType)
{
case StringType.CString:
value = task.Stream.ReadCString(this.GetStringEncoding(task.Attributes));
return(true);
default:
value = task.Stream.ReadString(lengthType, this.GetStringEncoding(task.Attributes));
return(true);
}
}
public bool GetObject(StreamDataParserTask task, out object value)
{
var a = task.Stream.ReadInt32();
var b = task.Stream.ReadInt32();
var c = task.Stream.ReadInt32();
var d = task.Stream.ReadInt32();
if (c == -1)
{
value = new Version(a, b);
}
else if (d == -1)
{
value = new Version(a, b, c);
}
else
{
value = new Version(a, b, c, d);
}
return(true);
}
public bool WriteObject(StreamDataParserTask task, object value)
{
var cs = value as Checksum;
task.Stream.WriteBytes(cs.ToArray());
return true;
}
public bool WriteObject(StreamDataParserTask task, object value)
{
return(WriteValue(task.StreamType, task.Stream, value));
}
public bool GetObject(StreamDataParserTask task, out object value)
{
return(GetValue(task.StreamType, task.Stream, out value));
}
/// <summary>
/// Write a given object to stream
/// </summary>
/// <param name="obj">Object to write</param>
/// <param name="ms">Stream to write to</param>
public static void Serialize(object obj, SuperStream ms)
{
if (typeof(IStreamDataFinalizer).IsAssignableFrom(obj.GetType()))
{
IStreamDataFinalizer fin = (IStreamDataFinalizer)obj;
fin.OnSerialize();
}
var properties = StreamDataInfo.GetProperties(obj.GetType());
// Parse spell arguments
foreach (var pi in properties)
{
dynamic value = pi.PropertyInfo.SafeGetValue(obj, null);
StreamDataParserTask task = new StreamDataParserTask(ms, pi.ReadType, pi.DataType, pi.Attributes);
if (pi.IsCollection)
{
// Find actual length of collection.
ulong length;
if (pi.IsArray)
{
length = (ulong)value.Length;
}
else if (pi.IsList)
{
length = (ulong)value.Count;
}
else
{
throw new Exception("Property is collection, but not array nor list.");
}
// Write length, and return written length. (Entries= will override length of collection if set)
length = pi.WriteContentLength(ms, length);
dynamic enumerable = pi.PropertyInfo.SafeGetValue(obj, null);
ulong count = 0;
foreach (var entry in enumerable)
{
// Make sure we do not write more entries than we've declared
count++;
if (count > length)
{
throw new Exception("Collection contains more items than ");
}
// Write enry.
if (!WriteParserData(task, entry))
{
throw new Exception();
}
}
continue;
}
else
{
if (!WriteParserData(task, value))
{
throw new Exception();
}
}
}
}
/// <summary>
/// Populates an existing object with data from stream.
/// </summary>
/// <param name="obj"></param>
/// <param name="ms"></param>
/// <returns></returns>
public static object Populate(object obj, SuperStream ms)
{
var properties = StreamDataInfo.GetProperties(obj.GetType());
bool gracefulStopAtEOF = obj.GetType().GetAttribute <StreamDataGracefulEofAttribute>() != null;
dynamic value;
// Parse spell arguments
foreach (var pi in properties)
{
if (gracefulStopAtEOF && ms.EOF)
{
break;
}
StreamDataParserTask task = new StreamDataParserTask(ms, pi.ReadType, pi.DataType, pi.Attributes);
if (pi.IsCollection)
{
var entries = pi.ReadContentLength(ms);
if (pi.IsArray)
{
var arr = new ArrayList((int)Math.Min(int.MaxValue, entries));
for (ulong i = 0; i < entries; i++)
{
if (!GetParserData(task, out value))
{
throw new Exception();
}
arr.Add(value);
}
var arr2 = arr.ToArray(pi.ReadType);
pi.PropertyInfo.SafeSetValue(obj, arr2, null);
continue;
}
else if (pi.IsList)
{
dynamic list = Activator.CreateInstance(
typeof(List <>).MakeGenericType(pi.DataType),
(int)Math.Min(int.MaxValue, entries));
for (ulong i = 0; i < entries; i++)
{
if (!GetParserData(task, out value))
{
throw new Exception();
}
list.Add(value);
}
pi.PropertyInfo.SafeSetValue(obj, (object)list, null);
}
}
else
{
if (!GetParserData(task, out value))
{
throw new Exception();
}
pi.PropertyInfo.SafeSetValue(obj, (object)value, null);
continue;
}
}
if (typeof(IStreamDataFinalizer).IsAssignableFrom(obj.GetType()))
{
IStreamDataFinalizer fin = (IStreamDataFinalizer)obj;
fin.OnDeserialize();
}
return(obj);
}
