int IKeyDescriber.GetByteCount(Type type)
{
int id = _Get(type);
int idCount = Varint.GetByteCount(id);
return(idCount);
}
int ITypeDescriber.GetByteCount(object instance)
{
try
{
var validFields = _Fields.Select(
(field, index) => new
{
field,
index
}).Where(validField => object.Equals(_GetDescriber(validField.field).Default, validField.field.GetValue(instance)) == false).ToArray();
var validCount = Varint.GetByteCount(validFields.Length);
int count = 0;
for (int i = 0; i < validFields.Length; i++)
{
var validField = validFields[i];
var value = validField.field.GetValue(instance);
var valueType = value.GetType();
var valueTypeCount = _TypeSet.Get().GetByteCount(valueType);
var describer = _TypeSet.Get(valueType);
var byteCount = describer.GetByteCount(value);
var indexCount = Varint.GetByteCount(validField.index);
count += byteCount + indexCount + valueTypeCount;
}
return(count + validCount);
}
catch (Exception ex)
{
throw new DescriberException(typeof(ClassDescriber), _Type, "GetByteCount", ex);
}
}
int ITypeDescriber.ToBuffer(object instance, byte[] buffer, int begin)
{
try
{
var set = _GetSet(instance);
var offset = begin;
offset += Varint.NumberToBuffer(buffer, offset, set.TotalLength);
offset += Varint.NumberToBuffer(buffer, offset, set.ValidLength);
for (int i = 0; i < set.ValidObjects.Length; i++)
{
var index = set.ValidObjects[i].Index;
var obj = set.ValidObjects[i].Object;
offset += Varint.NumberToBuffer(buffer, offset, index);
var objType = obj.GetType();
var describer = _TypeSet.Get(objType);
offset += _TypeSet.Get().ToBuffer(objType, buffer, offset);
offset += describer.ToBuffer(obj, buffer, offset);
}
return(offset - begin);
}
catch (Exception ex)
{
throw new DescriberException(typeof(ArrayDescriber), _Type, "ToBuffer", ex);
}
}
int ITypeDescriber.GetByteCount(object instance)
{
var set = _GetSet(instance);
var lenCount = Varint.GetByteCount(set.TotalLength);
var validCount = Varint.GetByteCount(set.ValidLength);
var instanceCount = 0;
for (int i = 0; i < set.ValidObjects.Length; i++)
{
var index = set.ValidObjects[i].Index;
var obj = set.ValidObjects[i].Object;
var describer = _TypeSet.Get(obj.GetType());
instanceCount += Varint.GetByteCount(index);
instanceCount += _TypeSet.Get().GetByteCount(obj.GetType());
instanceCount += describer.GetByteCount(obj);
}
return(instanceCount + lenCount + validCount);
}
private byte[] _NullBuffer()
{
var idCount = Varint.GetByteCount(0);
var buffer = new byte[idCount];
Varint.NumberToBuffer(buffer, 0, 0);
return(buffer);
}
int IKeyDescriber.ToObject(byte[] buffer, int begin, out Type type)
{
int id;
int count = Varint.BufferToNumber(buffer, begin, out id);
type = _Get(id);
return(count);
}
int ITypeDescriber.ToObject(byte[] buffer, int begin, out object instance)
{
try
{
var constructor = _Type.GetConstructors().OrderBy(c => c.GetParameters().Length).Select(c => c).FirstOrDefault();
if (constructor != null)
{
var argTypes = constructor.GetParameters().Select(info => info.ParameterType).ToArray();
var objArgs = new object[argTypes.Length];
for (int i = 0; i < argTypes.Length; i++)
{
objArgs[i] = Activator.CreateInstance(argTypes[i]);
}
instance = Activator.CreateInstance(_Type, objArgs);
}
else
{
instance = Activator.CreateInstance(_Type);
}
var offset = begin;
ulong validLength;
offset += Varint.BufferToNumber(buffer, offset, out validLength);
for (var i = 0ul; i < validLength; i++)
{
ulong index;
offset += Varint.BufferToNumber(buffer, offset, out index);
Type valueType;
offset += _TypeSet.Get().ToObject(buffer, offset, out valueType);
var filed = _Fields[index];
var describer = _TypeSet.Get(valueType);
object valueInstance;
offset += describer.ToObject(buffer, offset, out valueInstance);
filed.SetValue(instance, valueInstance);
}
return(offset - begin);
}
catch (Exception ex)
{
throw new DescriberException(typeof(ClassDescriber), _Type, "ToObject", ex);
}
}
int ITypeDescriber.ToObject(byte[] buffer, int begin, out object instnace)
{
try
{
var offset = begin;
ulong count;
offset += Varint.BufferToNumber(buffer, offset, out count);
var array = Activator.CreateInstance(_Type, (int)count) as IList;
instnace = array;
ulong validCount;
offset += Varint.BufferToNumber(buffer, offset, out validCount);
for (var i = 0UL; i < validCount; i++)
{
var index = 0LU;
offset += Varint.BufferToNumber(buffer, offset, out index);
Type objType;
offset += _TypeSet.Get().ToObject(buffer, offset, out objType);
var describer = _TypeSet.Get(objType);
object value;
offset += describer.ToObject(buffer, offset, out value);
array[(int)index] = value;
}
return(offset - begin);
}
catch (Exception ex)
{
throw new DescriberException(typeof(ArrayDescriber), _Type, "ToObject", ex);;
}
}
int ITypeDescriber.ToBuffer(object instance, byte[] buffer, int begin)
{
try
{
int offset = begin;
var validFields = _Fields.Select(
(field, index) => new
{
field,
index
}).Where(validField => object.Equals(_GetDescriber(validField.field).Default, validField.field.GetValue(instance)) == false)
.ToArray();
offset += Varint.NumberToBuffer(buffer, offset, validFields.Length);
foreach (var validField in validFields)
{
var index = validField.index;
offset += Varint.NumberToBuffer(buffer, offset, index);
var field = validField.field;
var value = field.GetValue(instance);
var valueType = value.GetType();
offset += _TypeSet.Get().ToBuffer(valueType, buffer, offset);
var describer = _TypeSet.Get(valueType);
offset += describer.ToBuffer(value, buffer, offset);
}
return(offset - begin);
}
catch (Exception ex)
{
throw new DescriberException(typeof(ClassDescriber), _Type, "ToBuffer", ex);
}
}
public static int NumberToBuffer(byte[] buffer, int offset, int value)
{
return(Varint.NumberToBuffer(buffer, offset, (ulong)value));
}
public static int GetByteCount(int value)
{
return(Varint.GetByteCount((ulong)value));
}
int IKeyDescriber.ToBuffer(Type type, byte[] buffer, int begin)
{
int id = _Get(type);
return(Varint.NumberToBuffer(buffer, begin, id));
}
