public object Deserialize(CacheItem item)
{
var jsonSerializer = new JsonSerializer
{
TypeNameHandling = TypeNameHandling.All
};
var data = new byte[item.Data.Count];
Array.Copy(item.Data.Array, item.Data.Offset, data, 0, data.Length);
using (var memoryStream = new MemoryStream(data))
{
using (var zipStream = new GZipStream(memoryStream, CompressionMode.Decompress))
{
using (var streamReader = new StreamReader(zipStream))
{
var textReader = new JsonTextReader(streamReader);
try
{
return jsonSerializer.Deserialize(textReader);
}
catch (JsonSerializationException)
{
//This exception occurs if whatever is in memcached is impossible to deserialize. It's a tricky case, but we'll have to report back that nothing is in there.
return null;
}
}
}
}
}
public object Deserialize(CacheItem item)
{
var jsonSerializer = new JsonSerializer
{
TypeNameHandling = TypeNameHandling.All
};
var data = new byte[item.Data.Count];
Array.Copy(item.Data.Array, item.Data.Offset, data, 0, data.Length);
using (var memoryStream = new MemoryStream(data))
{
using (var streamReader = new StreamReader(memoryStream))
{
var textReader = new JsonTextReader(streamReader);
try
{
var dynamicEntity = jsonSerializer.Deserialize(textReader);
return dynamicEntity;
}
catch (JsonReaderException)
{
return null;
}
catch (JsonSerializationException)
{
return null;
}
}
}
}
public object Deserialize(CacheItem item)
{
var jsonSerializer = new JsonSerializer
{
TypeNameHandling = TypeNameHandling.All
};
using (var memoryStream = new MemoryStream(item.Data.Array))
{
using (var streamReader = new StreamReader(memoryStream))
{
var textReader = new JsonTextReader(streamReader);
try
{
var dynamicEntity = jsonSerializer.Deserialize(textReader);
return dynamicEntity;
}
catch(JsonReaderException e)
{
return new object();
}
}
}
}
protected virtual object Deserialize(CacheItem item)
{
if (item.Data.Array == null)
return null;
if (item.Flags == RawDataFlag) {
var tmp = item.Data;
if (tmp.Count == tmp.Array.Length)
return tmp.Array;
// we should never arrive here, but it's better to be safe than sorry
var retval = new byte[tmp.Count];
Array.Copy(tmp.Array, tmp.Offset, retval, 0, tmp.Count);
return retval;
}
var code = (TypeCode)(item.Flags & 0xff);
var data = item.Data;
switch (code) {
// incrementing a non-existing key then getting it
// returns as a string, but the flag will be 0
// so treat all 0 flagged items as string
// this may help inter-client data management as well
//
// however we store 'null' as Empty + an empty array,
// so this must special-cased for compatibilty with
// earlier versions. we introduced DBNull as null marker in emc2.6
case TypeCode.Empty:
return (data.Array == null || data.Count == 0)
? null
: DeserializeString(data);
case TypeCode.DBNull: return null;
case TypeCode.String: return this.DeserializeString(data);
case TypeCode.Boolean: return this.DeserializeBoolean(data);
case TypeCode.Int16: return this.DeserializeInt16(data);
case TypeCode.Int32: return this.DeserializeInt32(data);
case TypeCode.Int64: return this.DeserializeInt64(data);
case TypeCode.UInt16: return this.DeserializeUInt16(data);
case TypeCode.UInt32: return this.DeserializeUInt32(data);
case TypeCode.UInt64: return this.DeserializeUInt64(data);
case TypeCode.Char: return this.DeserializeChar(data);
case TypeCode.DateTime: return this.DeserializeDateTime(data);
case TypeCode.Double: return this.DeserializeDouble(data);
case TypeCode.Single: return this.DeserializeSingle(data);
// backward compatibility
// earlier versions serialized decimals with TypeCode.Decimal
// even though they were saved by BinaryFormatter
case TypeCode.Decimal:
case TypeCode.Object: return this.DeserializeObject(data);
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
public IStoreOperation Store(StoreMode mode, Key key, CacheItem value, uint expires, ulong cas)
{
return new StoreOperation(allocator, mode, key, value)
{
Cas = cas,
Expires = expires
};
}
public object Deserialize(CacheItem item)
{
if (item.Segment.Array == null)
return null;
if (item.Flags == RawDataFlag || (item.Flags & 0x1ff) != item.Flags)
{
var tmp = item.Segment;
if (tmp.Count == tmp.Array.Length)
return tmp.Array;
// TODO improve memcpy
var retval = new byte[tmp.Count];
Buffer.BlockCopy(tmp.Array, 0, retval, 0, tmp.Count);
return retval;
}
var code = (TypeCode)(item.Flags & 0xff);
var data = item.Segment;
switch (code)
{
case TypeCode.DBNull: return null;
// incrementing a non-existing key then getting it
// returns as a string, but the flag will be 0
// so treat all 0 flagged items as string
// this may help inter-client data management as well
case TypeCode.Empty:
case TypeCode.String: return DeserializeString(data);
case TypeCode.Byte: return data.Array[0];
case TypeCode.SByte: return (sbyte)data.Array[0];
case TypeCode.Boolean: return PooledBitConverter.ToBoolean(data);
case TypeCode.Char: return PooledBitConverter.ToChar(data);
case TypeCode.Int16: return PooledBitConverter.ToInt16(data);
case TypeCode.Int32: return PooledBitConverter.ToInt32(data);
case TypeCode.Int64: return PooledBitConverter.ToInt64(data);
case TypeCode.UInt16: return PooledBitConverter.ToUInt16(data);
case TypeCode.UInt32: return PooledBitConverter.ToUInt32(data);
case TypeCode.UInt64: return PooledBitConverter.ToUInt64(data);
case TypeCode.DateTime: return DateTime.FromBinary(PooledBitConverter.ToInt64(data));
case TypeCode.Single: return PooledBitConverter.ToSingle(data);
case TypeCode.Double: return PooledBitConverter.ToDouble(data);
case TypeCode.Decimal: return PooledBitConverter.ToDecimal(data);
case TypeCode.Object: return DeserializeObject(data);
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
object ITranscoder.Deserialize(CacheItem item)
{
switch (item.Flag)
{
case ProtoIdentifier:
var segment = item.Data;
byte[] raw = segment.Array;
int count = segment.Count, offset = segment.Offset;
Type type = ReadType(raw, ref offset, ref count);
using (var ms = new MemoryStream(raw, offset, count))
{
return Serializer.NonGeneric.Deserialize(type, ms);
}
default:
return inner.Deserialize(item);
}
}
public bool Equals(CacheItem obj)
{
return(obj.flags == flags && obj.data.Equals(data));
}
object ITranscoder.Deserialize(CacheItem item)
{
if (item.Data == null || item.Data.Array == null)
return null;
if (item.Flags == RawDataFlag)
{
ArraySegment<byte> tmp = item.Data;
if (tmp.Count == tmp.Array.Length)
return tmp.Array;
// we should never arrive here, but it's better to be safe than sorry
byte[] retval = new byte[tmp.Count];
Array.Copy(tmp.Array, tmp.Offset, retval, 0, tmp.Count);
return retval;
}
TypeCode code = (TypeCode)(item.Flags & 0x00ff);
byte[] data = item.Data.Array;
int offset = item.Data.Offset;
int count = item.Data.Count;
switch (code)
{
// incrementing a non-existing key then getting it
// returns as a string, but the flag will be 0
// so treat all 0 flagged items as string
// this may help inter-memcachedClient data management as well
//
// however we store 'null' as Empty + an empty array,
// so this must special-cased for compatibilty with
// earlier versions. we introduced DBNull as null marker in emc2.6
case TypeCode.Empty:
return (data == null || count == 0)
? null
: Encoding.UTF8.GetString(data, offset, count);
case TypeCode.DBNull:
return null;
case TypeCode.String:
return Encoding.UTF8.GetString(data, offset, count);
case TypeCode.Boolean:
return BitConverter.ToBoolean(data, offset);
case TypeCode.Int16:
return BitConverter.ToInt16(data, offset);
case TypeCode.Int32:
return BitConverter.ToInt32(data, offset);
case TypeCode.Int64:
return BitConverter.ToInt64(data, offset);
case TypeCode.UInt16:
return BitConverter.ToUInt16(data, offset);
case TypeCode.UInt32:
return BitConverter.ToUInt32(data, offset);
case TypeCode.UInt64:
return BitConverter.ToUInt64(data, offset);
case TypeCode.Char:
return BitConverter.ToChar(data, offset);
case TypeCode.DateTime:
return DateTime.FromBinary(BitConverter.ToInt64(data, offset));
case TypeCode.Double:
return BitConverter.ToDouble(data, offset);
case TypeCode.Single:
return BitConverter.ToSingle(data, offset);
case TypeCode.Object:
using (MemoryStream ms = new MemoryStream(data, offset, count))
{
return new BinaryFormatter().Deserialize(ms);
}
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
public GetResponse(string key, ushort flags, ulong casValue, byte[] data, int offset, int count)
{
this.Key = key;
this.CasValue = casValue;
this.Item = new CacheItem(flags, new ArraySegment<byte>(data, offset, count));
}
object ITranscoder.Deserialize(CacheItem item)
{
if (item.Data == null || item.Data.Array == null)
return null;
if (item.Flags == RawDataFlag)
{
ArraySegment<byte> tmp = item.Data;
if (tmp.Count == tmp.Array.Length)
return tmp.Array;
// we should never arrive here, but it's better to be safe than sorry
byte[] retval = new byte[tmp.Count];
Array.Copy(tmp.Array, tmp.Offset, retval, 0, tmp.Count);
return retval;
}
TypeCode code = (TypeCode)(item.Flags & 0x00ff);
byte[] data = item.Data.Array;
int offset = item.Data.Offset;
int count = item.Data.Count;
switch (code)
{
// incrementing a non-existing key then getting it
// returns as a string, but the flag will be 0
// so treat all 0 flagged items as string
// this may help inter-client data management as well
//
// however we store 'null' as Empty + an empty array,
// so this must special-cased for compatibilty with
// earlier versions. we introduced DBNull as null marker in emc2.6
case TypeCode.Empty:
return (data == null || count == 0)
? null
: Encoding.UTF8.GetString(data, offset, count);
case TypeCode.DBNull:
return null;
case TypeCode.String:
return Encoding.UTF8.GetString(data, offset, count);
case TypeCode.Boolean:
return BitConverter.ToBoolean(data, offset);
case TypeCode.Int16:
return BitConverter.ToInt16(data, offset);
case TypeCode.Int32:
return BitConverter.ToInt32(data, offset);
case TypeCode.Int64:
return BitConverter.ToInt64(data, offset);
case TypeCode.UInt16:
return BitConverter.ToUInt16(data, offset);
case TypeCode.UInt32:
return BitConverter.ToUInt32(data, offset);
case TypeCode.UInt64:
return BitConverter.ToUInt64(data, offset);
case TypeCode.Char:
return BitConverter.ToChar(data, offset);
case TypeCode.DateTime:
return DateTime.FromBinary(BitConverter.ToInt64(data, offset));
case TypeCode.Double:
return BitConverter.ToDouble(data, offset);
case TypeCode.Single:
return BitConverter.ToSingle(data, offset);
case TypeCode.Object:
using (MemoryStream ms = new MemoryStream(data, offset, count))
{
return new BinaryFormatter().Deserialize(ms);
}
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
protected virtual object Deserialize(CacheItem item)
{
if (item.Data.Array == null)
{
return(null);
}
if (item.Flags == RawDataFlag)
{
var tmp = item.Data;
if (tmp.Count == tmp.Array.Length)
{
return(tmp.Array);
}
// we should never arrive here, but it's better to be safe than sorry
var retval = new byte[tmp.Count];
Array.Copy(tmp.Array, tmp.Offset, retval, 0, tmp.Count);
return(retval);
}
var code = (TypeCode)(item.Flags & 0xff);
var data = item.Data;
switch (code)
{
// incrementing a non-existing key then getting it
// returns as a string, but the flag will be 0
// so treat all 0 flagged items as string
// this may help inter-client data management as well
//
// however we store 'null' as Empty + an empty array,
// so this must special-cased for compatibilty with
// earlier versions. we introduced DBNull as null marker in emc2.6
case TypeCode.Empty:
return((data.Array == null || data.Count == 0)
? null
: DeserializeString(data));
case TypeCode.DBNull: return(null);
case TypeCode.String: return(this.DeserializeString(data));
case TypeCode.Boolean: return(this.DeserializeBoolean(data));
case TypeCode.Int16: return(this.DeserializeInt16(data));
case TypeCode.Int32: return(this.DeserializeInt32(data));
case TypeCode.Int64: return(this.DeserializeInt64(data));
case TypeCode.UInt16: return(this.DeserializeUInt16(data));
case TypeCode.UInt32: return(this.DeserializeUInt32(data));
case TypeCode.UInt64: return(this.DeserializeUInt64(data));
case TypeCode.Char: return(this.DeserializeChar(data));
case TypeCode.DateTime: return(this.DeserializeDateTime(data));
case TypeCode.Double: return(this.DeserializeDouble(data));
case TypeCode.Single: return(this.DeserializeSingle(data));
case TypeCode.Byte: return(this.DeserializeByte(data));
case TypeCode.SByte: return(this.DeserializeSByte(data));
// backward compatibility
// earlier versions serialized decimals with TypeCode.Decimal
// even though they were saved by BinaryFormatter
case TypeCode.Decimal:
case TypeCode.Object: return(this.DeserializeObject(data));
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
object ITranscoder.Deserialize(CacheItem item)
{
if (item.Flag == RawDataFlag)
{
ArraySegment<byte> tmp = item.Data;
if (tmp.Count == tmp.Array.Length)
return tmp.Array;
// we should never arrive here, but it's better to be safe than sorry
byte[] retval = new byte[tmp.Count];
Array.Copy(tmp.Array, tmp.Offset, retval, 0, tmp.Count);
return retval;
}
TypeCode code = (TypeCode)(item.Flag & 0x00ff);
if (code == TypeCode.Empty)
return null;
byte[] data = item.Data.Array;
int offset = item.Data.Offset;
int count = item.Data.Count;
switch (code)
{
case TypeCode.String:
return Encoding.UTF8.GetString(data, offset, count);
case TypeCode.Boolean:
return BitConverter.ToBoolean(data, offset);
case TypeCode.Int16:
return BitConverter.ToInt16(data, offset);
case TypeCode.Int32:
return BitConverter.ToInt32(data, offset);
case TypeCode.Int64:
return BitConverter.ToInt64(data, offset);
case TypeCode.UInt16:
return BitConverter.ToUInt16(data, offset);
case TypeCode.UInt32:
return BitConverter.ToUInt32(data, offset);
case TypeCode.UInt64:
return BitConverter.ToUInt64(data, offset);
case TypeCode.Char:
return BitConverter.ToChar(data, offset);
case TypeCode.DateTime:
return DateTime.FromBinary(BitConverter.ToInt64(data, offset));
case TypeCode.Double:
return BitConverter.ToDouble(data, offset);
case TypeCode.Single:
return BitConverter.ToSingle(data, offset);
case TypeCode.Object:
using (MemoryStream ms = new MemoryStream(data, offset, count))
{
return new BinaryFormatter().Deserialize(ms);
}
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
public bool Equals(CacheItem obj)
{
return obj.flags == flags && obj.segment.Equals(segment);
}
object ITranscoder.Deserialize(CacheItem item)
{
return(this.Deserialize(item));
}
public VBStore(VBucketNodeLocator locator, StoreMode mode, string key, CacheItem value, uint expires)
: base(mode, key, value, expires)
{
this.locator = locator;
}
object ITranscoder.Deserialize(CacheItem item)
{
switch (item.Flags)
{
case ProtoIdentifier:
var segment = item.Data;
byte[] raw = segment.Array;
int count = segment.Count, offset = segment.Offset;
Type type = ReadType(raw, ref offset, ref count);
using (var ms = new MemoryStream(raw, offset, count))
{
Interlocked.Increment(ref deserializedCount);
return model.Deserialize(ms, null, type);
}
default:
return inner.Deserialize(item);
}
}
object ITranscoder.Deserialize(CacheItem item) => this.Deserialize(item);
public object Deserialize(CacheItem item)
{
if (item.Segment.Array == null)
{
return(null);
}
if (item.Flags == RawDataFlag || (item.Flags & 0x1ff) != item.Flags)
{
var tmp = item.Segment;
if (tmp.Count == tmp.Array.Length)
{
return(tmp.Array);
}
// TODO improve memcpy
var retval = new byte[tmp.Count];
Buffer.BlockCopy(tmp.Array, 0, retval, 0, tmp.Count);
return(retval);
}
var code = (TypeCode)(item.Flags & 0xff);
var data = item.Segment;
switch (code)
{
case TypeCode.DBNull: return(null);
// incrementing a non-existing key then getting it
// returns as a string, but the flag will be 0
// so treat all 0 flagged items as string
// this may help inter-client data management as well
case TypeCode.Empty:
case TypeCode.String: return(DeserializeString(data));
case TypeCode.Byte: return(data.Array[0]);
case TypeCode.SByte: return((sbyte)data.Array[0]);
case TypeCode.Boolean: return(PooledBitConverter.ToBoolean(data));
case TypeCode.Char: return(PooledBitConverter.ToChar(data));
case TypeCode.Int16: return(PooledBitConverter.ToInt16(data));
case TypeCode.Int32: return(PooledBitConverter.ToInt32(data));
case TypeCode.Int64: return(PooledBitConverter.ToInt64(data));
case TypeCode.UInt16: return(PooledBitConverter.ToUInt16(data));
case TypeCode.UInt32: return(PooledBitConverter.ToUInt32(data));
case TypeCode.UInt64: return(PooledBitConverter.ToUInt64(data));
case TypeCode.DateTime: return(DateTime.FromBinary(PooledBitConverter.ToInt64(data)));
case TypeCode.Single: return(PooledBitConverter.ToSingle(data));
case TypeCode.Double: return(PooledBitConverter.ToDouble(data));
case TypeCode.Decimal: return(PooledBitConverter.ToDecimal(data));
case TypeCode.Object: return(DeserializeObject(data));
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
object ITranscoder.Deserialize(CacheItem item)
{
if (item.Flag == RawDataFlag)
{
ArraySegment <byte> tmp = item.Data;
if (tmp.Count == tmp.Array.Length)
{
return(tmp.Array);
}
// we should never arrive here, but it's better to be safe than sorry
byte[] retval = new byte[tmp.Count];
Array.Copy(tmp.Array, tmp.Offset, retval, 0, tmp.Count);
return(retval);
}
TypeCode code = (TypeCode)(item.Flag & 0x00ff);
if (code == TypeCode.Empty)
{
return(null);
}
byte[] data = item.Data.Array;
int offset = item.Data.Offset;
int count = item.Data.Count;
switch (code)
{
case TypeCode.String:
return(Encoding.UTF8.GetString(data, offset, count));
case TypeCode.Boolean:
return(BitConverter.ToBoolean(data, offset));
case TypeCode.Int16:
return(BitConverter.ToInt16(data, offset));
case TypeCode.Int32:
return(BitConverter.ToInt32(data, offset));
case TypeCode.Int64:
return(BitConverter.ToInt64(data, offset));
case TypeCode.UInt16:
return(BitConverter.ToUInt64(data, offset));
case TypeCode.UInt32:
return(BitConverter.ToUInt32(data, offset));
case TypeCode.UInt64:
return(BitConverter.ToUInt64(data, offset));
case TypeCode.Char:
return(BitConverter.ToChar(data, offset));
case TypeCode.DateTime:
return(DateTime.FromBinary(BitConverter.ToInt64(data, offset)));
case TypeCode.Double:
return(BitConverter.ToDouble(data, offset));
case TypeCode.Single:
return(BitConverter.ToSingle(data, offset));
case TypeCode.Object:
using (MemoryStream ms = new MemoryStream(data, offset, count))
{
return(new BinaryFormatter().Deserialize(ms));
}
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
IStoreOperation IOperationFactory.Store(StoreMode mode, string key, CacheItem value, uint expires, ulong cas)
{
return new VBStore(locator, mode, key, value, expires) { Cas = cas };
}
public IStoreOperation Store(StoreMode mode, Key key, CacheItem value, uint expires, ulong cas)
{
throw new NotImplementedException();
}
object ITranscoder.Deserialize(CacheItem item)
{
return this.Deserialize(item);
}
public object Deserialize(CacheItem item)
{
throw new NotImplementedException();
}
