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//------------------------------------------------------------------------------
// <copyright file="SmiSettersStream.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
// <owner current="true" primary="false">Microsoft</owner>
//------------------------------------------------------------------------------
namespace Microsoft.SqlServer.Server {
using System;
using System.Data.Common;
using System.Data.SqlClient;
using System.Diagnostics;
using System.IO;
internal class SmiSettersStream : Stream {
private SmiEventSink_Default _sink;
private ITypedSettersV3 _setters;
private int _ordinal;
private long _lengthWritten;
private SmiMetaData _metaData;
internal SmiSettersStream( SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metaData ) {
Debug.Assert( null != sink );
Debug.Assert( null != setters );
Debug.Assert( 0 <= ordinal );
Debug.Assert( null != metaData );
_sink = sink;
_setters = setters;
_ordinal = ordinal;
_lengthWritten = 0;
_metaData = metaData;
}
public override bool CanRead {
get {
return false;
}
}
// If CanSeek is false, Position, Seek, Length, and SetLength should throw.
public override bool CanSeek {
get {
return false;
}
}
public override bool CanWrite {
get {
return true;
}
}
public override long Length {
get {
return _lengthWritten;
}
}
public override long Position {
get {
return _lengthWritten;
}
set {
throw SQL.StreamSeekNotSupported();
}
}
public override void Flush() {
_lengthWritten = ValueUtilsSmi.SetBytesLength(_sink, _setters, _ordinal, _metaData, _lengthWritten);
}
public override long Seek(long offset, SeekOrigin origin) {
throw SQL.StreamSeekNotSupported();
}
public override void SetLength(long value) {
if ( value < 0 ) {
throw ADP.ArgumentOutOfRange("value");
}
ValueUtilsSmi.SetBytesLength(_sink, _setters, _ordinal, _metaData, value);
}
public override int Read(byte[] buffer, int offset, int count) {
throw SQL.StreamReadNotSupported();
}
public override void Write(byte[] buffer, int offset, int count) {
_lengthWritten += ValueUtilsSmi.SetBytes(_sink, _setters, _ordinal, _metaData, _lengthWritten, buffer, offset, count);
}
}
}
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