public object[] GetValues(DataReaderId readerId, int maximumNumberOfValuesToRead)
{
if (maximumNumberOfValuesToRead <= 0)
{
throw new ArgumentOutOfRangeException(nameof(maximumNumberOfValuesToRead));
}
var reader = _readerStore.Get(readerId);
var values = new object[Math.Min(reader.FieldCount, maximumNumberOfValuesToRead)];
var lengthRead = reader.GetValues(values);
if (lengthRead < maximumNumberOfValuesToRead)
{
var valuesCopy = values;
values = new object[lengthRead];
Array.Copy(valuesCopy, 0, values, 0, lengthRead);
}
for (var i = 0; i < lengthRead; i++)
{
if (values[i] == DBNull.Value)
{
values[i] = null; // Replace DBNull.Value with null for the same reason as in GetValue
}
}
return(values);
}
public Tuple <long, char[]> GetChars(DataReaderId readerId, int i, long fieldoffset, char[] buffer, int bufferoffset, int length)
{
// When messages are passed over the write, the "buffer" reference on the client is serialised and then deserialised here, so
// it's not the same array. With an IDataReader, buffer WOULD be populated - to approximate this, we have to return a new array
// and the client has to write its contents over the original array's contents.
var lengthRead = _readerStore.Get(readerId).GetChars(i, fieldoffset, buffer, bufferoffset, length);
return(Tuple.Create(lengthRead, buffer));
}
public object GetValue(DataReaderId readerId, int i)
{
// If the value is null in the database then we'll get DBNull.Value here, which the WCF host won't like (it will say, if you know
// how to trap the correct exception, something about using [KnownType] - but that can only be applied to types, not members). I'm
// not sure how to solve this in a perfect manner, so I'm going to replace DBNull.Value with null and then do the opposite on the
// client.
var value = _readerStore.Get(readerId).GetValue(i);
return((value == DBNull.Value) ? null : value);
}
public string[] GetFieldNames(DataReaderId readerId)
{
var reader = _readerStore.Get(readerId);
var fieldNames = new string[reader.FieldCount];
for (var i = 0; i < fieldNames.Length; i++)
{
fieldNames[i] = reader.GetName(i);
}
return(fieldNames);
}
public RemoteSqlDataReaderClient(IRemoteSqlDataReader reader, DataReaderId readerId)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
_reader = reader;
_readerId = readerId;
_disposed = false;
_currentColumnNamesLookupIfKnown = null;
_valuesInCurrentRowIfKnown = null;
}
public DataReaderId GetData(DataReaderId readerId, int i)
{
var reader = _readerStore.Get(readerId).GetData(i);
try
{
return(_readerStore.Add(reader));
}
catch
{
reader.Dispose();
throw;
}
}
public string GetFieldType(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetFieldType(i).FullName);
}
public double GetDouble(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetDouble(i));
}
public int GetDepth(DataReaderId readerId)
{
return(_readerStore.Get(readerId).Depth);
}
public void Close(DataReaderId readerId)
{
_readerStore.Get(readerId).Close();
}
public DataTable GetSchemaTable(DataReaderId readerId)
{
return(_readerStore.Get(readerId).GetSchemaTable());
}
public long GetInt64(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetInt64(i));
}
public short GetInt16(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetInt16(i));
}
public char GetChar(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetChar(i));
}
public byte GetByte(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetByte(i));
}
public bool GetBoolean(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetBoolean(i));
}
public bool IsDBNull(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).IsDBNull(i));
}
public int GetRecordsAffected(DataReaderId readerId)
{
return(_readerStore.Get(readerId).RecordsAffected);
}
public bool GetIsClosed(DataReaderId readerId)
{
return(_readerStore.Get(readerId).IsClosed);
}
public float GetFloat(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetFloat(i));
}
public Guid GetGuid(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetGuid(i));
}
public void Dispose(DataReaderId readerId)
{
_readerStore.Get(readerId).Dispose();
_readerStore.Remove(readerId);
}
public int GetInt32(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetInt32(i));
}
public bool NextResult(DataReaderId readerId)
{
return(_readerStore.Get(readerId).NextResult());
}
public int GetOrdinal(DataReaderId readerId, string name)
{
return(_readerStore.Get(readerId).GetOrdinal(name));
}
public DateTime GetDateTime(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetDateTime(i));
}
public string GetString(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetString(i));
}
public decimal GetDecimal(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetDecimal(i));
}
public string GetDataTypeName(DataReaderId readerId, int i)
{
return(_readerStore.Get(readerId).GetDataTypeName(i));
}
public int GetFieldCount(DataReaderId readerId)
{
return(_readerStore.Get(readerId).FieldCount);
}
