public static byte[] Serialize(this IColumnSpec columnSpec, object data)
{
byte[] rawData;
switch (columnSpec.ColumnType)
{
case ColumnType.List:
case ColumnType.Set:
var colType = columnSpec.CollectionValueType.ToType();
Type typedColl = typeof(CollectionAccessor<>).MakeGenericType(colType);
ICollectionAccessor coll = (ICollectionAccessor) Activator.CreateInstance(typedColl, data);
using (MemoryStream ms = new MemoryStream())
{
ms.WriteShort((short) coll.Count);
foreach (object elem in coll)
{
byte[] rawDataElem = Serialize(columnSpec.CollectionValueType, elem);
ms.WriteShortByteArray(rawDataElem);
}
rawData = ms.ToArray();
}
break;
case ColumnType.Map:
IDictionary map = (IDictionary) data;
using (MemoryStream ms = new MemoryStream())
{
ms.WriteShort((short) map.Count);
foreach (DictionaryEntry de in map)
{
byte[] rawDataKey = Serialize(columnSpec.CollectionKeyType, de.Key);
ms.WriteShortByteArray(rawDataKey);
byte[] rawDataValue = Serialize(columnSpec.CollectionValueType, de.Value);
ms.WriteShortByteArray(rawDataValue);
}
rawData = ms.ToArray();
}
break;
default:
rawData = Serialize(columnSpec.ColumnType, data);
break;
}
return rawData;
}
public static byte[] Serialize(this IColumnSpec columnSpec, object data)
{
byte[] rawData;
switch (columnSpec.ColumnType)
{
case ColumnType.List:
case ColumnType.Set:
ICollection coll = (ICollection) data;
using (MemoryStream ms = new MemoryStream())
{
ms.WriteShort((short) coll.Count);
foreach (object elem in coll)
{
byte[] rawDataElem = Serialize(columnSpec.CollectionValueType, elem);
ms.WriteShortByteArray(rawDataElem);
}
rawData = ms.ToArray();
}
break;
case ColumnType.Map:
IDictionary map = (IDictionary) data;
using (MemoryStream ms = new MemoryStream())
{
ms.WriteShort((short) map.Count);
foreach (DictionaryEntry de in map)
{
byte[] rawDataKey = Serialize(columnSpec.CollectionKeyType, de.Key);
ms.WriteShortByteArray(rawDataKey);
byte[] rawDataValue = Serialize(columnSpec.CollectionValueType, de.Value);
ms.WriteShortByteArray(rawDataValue);
}
rawData = ms.ToArray();
}
break;
default:
rawData = Serialize(columnSpec.ColumnType, data);
break;
}
return rawData;
}
public static byte[] SerializeSet(IHashSetAccessor data, Func<object, byte[]> valueSerializer)
{
using (MemoryStream ms = new MemoryStream())
{
ms.WriteUShort((ushort)data.Count);
foreach (object elem in data)
{
Console.WriteLine(elem);
ms.WriteShortByteArray(valueSerializer(elem));
}
Console.WriteLine(ms.Length);
return ms.ToArray();
}
}
public static byte[] SerializeList(IList data, Func<object, byte[]> valueSerializer)
{
using (MemoryStream ms = new MemoryStream())
{
ms.WriteUShort((ushort)data.Count);
foreach (object elem in data)
{
ms.WriteShortByteArray(valueSerializer(elem));
}
return ms.ToArray();
}
}
public static byte[] SerializeMap(IDictionary data, Func<object, byte[]> keySerializer, Func<object, byte[]> valueSerializer)
{
using (MemoryStream ms = new MemoryStream())
{
ms.WriteUShort((ushort)data.Count);
foreach (DictionaryEntry de in data)
{
ms.WriteShortByteArray(keySerializer(de.Key));
ms.WriteShortByteArray(valueSerializer(de.Value));
}
return ms.ToArray();
}
}
public static byte[] Serialize(this CqlColumn cqlColumn, object data)
{
//null value check
if (data == null)
return null;
byte[] rawData;
switch (cqlColumn.CqlType)
{
case CqlType.List:
case CqlType.Set:
if (!cqlColumn.CollectionValueType.HasValue)
throw new CqlException("CqlColumn collection type must has its value type set");
var coll = (IEnumerable)data;
using (var ms = new MemoryStream())
{
//write length placeholder
ms.Position = 2;
short count = 0;
foreach (object elem in coll)
{
byte[] rawDataElem = Serialize(cqlColumn.CollectionValueType.Value, elem);
ms.WriteShortByteArray(rawDataElem);
count++;
}
ms.Position = 0;
ms.WriteShort(count);
rawData = ms.ToArray();
}
break;
case CqlType.Map:
if (!cqlColumn.CollectionKeyType.HasValue)
throw new CqlException("CqlColumn map type must has its key type set");
if (!cqlColumn.CollectionValueType.HasValue)
throw new CqlException("CqlColumn map type must has its value type set");
var map = (IDictionary)data;
using (var ms = new MemoryStream())
{
ms.WriteShort((short)map.Count);
foreach (DictionaryEntry de in map)
{
byte[] rawDataKey = Serialize(cqlColumn.CollectionKeyType.Value, de.Key);
ms.WriteShortByteArray(rawDataKey);
byte[] rawDataValue = Serialize(cqlColumn.CollectionValueType.Value, de.Value);
ms.WriteShortByteArray(rawDataValue);
}
rawData = ms.ToArray();
}
break;
default:
rawData = Serialize(cqlColumn.CqlType, data);
break;
}
return rawData;
}
