public override bool Read()
{
switch (this.position)
{
case ReaderPosition.None:
this.position = ReaderPosition.StartElement;
return(true);
case ReaderPosition.StartElement:
this.position = ReaderPosition.Content;
return(true);
case ReaderPosition.Content:
this.position = ReaderPosition.EndElement;
return(true);
case ReaderPosition.EndElement:
this.position = ReaderPosition.EOF;
return(false);
case ReaderPosition.EOF:
return(false);
default:
return(false);
}
}
public override bool Read()
{
switch (this.position)
{
case ReaderPosition.None:
position = ReaderPosition.StartElement;
return(true);
case ReaderPosition.StartElement:
position = ReaderPosition.Content;
return(true);
case ReaderPosition.Content:
position = ReaderPosition.EndElement;
return(true);
case ReaderPosition.EndElement:
position = ReaderPosition.EOF;
return(false);
case ReaderPosition.EOF:
return(false);
default:
// we should never get here
// it means we managed to get into some unknown position in the stream
Fx.Assert(false, "Unknown read position in XmlByteStreamReader");
return(false);
}
}
public bool Read()
{
if (_itemEnumerator == null)
{
_itemEnumerator = _items.GetEnumerator();
}
bool isEmpty;
if (MoveNextValue())
{
_position = ReaderPosition.Value;
}
else if (MoveNextAttribute())
{
_position = ReaderPosition.Attribute;
}
else if (MoveNextItem(out isEmpty))
{
_position = isEmpty ? ReaderPosition.EmptyItem : ReaderPosition.Item;
}
else
{
_position = ReaderPosition.None;
return(false);
}
return(true);
}
public override int ReadContentAsBase64(byte[] buffer, int index, int count)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (this.position != ReaderPosition.Content)
{
throw new InvalidOperationException("XML reader not in Element");
}
if (count == 0)
{
return(0);
}
int readCount = this.stream.Read(buffer, index, count);
if (readCount == 0)
{
this.position = ReaderPosition.EndElement;
}
return(readCount);
}
public override bool MoveToElement()
{
if (this.position == ReaderPosition.None)
{
this.position = ReaderPosition.StartElement;
return(true);
}
return(false);
}
public override void Close()
{
if (!this.closed)
{
this.closed = true;
this.position = ReaderPosition.EOF;
this.readerQuotas = null;
if (this.streamOwner)
{
this.stream.Close();
}
}
}
public override void Close()
{
if (!this.closed)
{
try
{
this.OnClose();
}
finally
{
this.position = ReaderPosition.EOF;
this.closed = true;
}
}
}
protected void EnsureInContent()
{
// This method is only being called from XmlByteStreamReader.ReadContentAsBase64.
// We don't block if the position is None or StartElement since we want our XmlByteStreamReader
// to be a little bit smarter when people just to access the content of the ByteStreamMessage.
if (this.position == ReaderPosition.EndElement ||
this.position == ReaderPosition.EOF)
{
throw FxTrace.Exception.AsError(
new InvalidOperationException(SR.ByteStreamReaderNotInByteStream(ByteStreamMessageUtility.StreamElementName)));
}
else
{
this.position = ReaderPosition.Content;
}
}
public bool Read()
{
if (_reader == null)
{
_reader = _command.ExecuteReader();
}
if (_reader.Read())
{
if (_lastItemName != ItemName)
{
_lastItemName = ItemName;
if (_reader.IsDBNull(1))
{
_lastAttributeName = null;
_position = ReaderPosition.EmptyItem;
}
else
{
_lastAttributeName = AttributeName;
_position = ReaderPosition.Item;
}
}
else if (_lastAttributeName != AttributeName)
{
_lastAttributeName = AttributeName;
_position = ReaderPosition.Attribute;
}
else
{
_position = ReaderPosition.Value;
}
return(true);
}
_position = ReaderPosition.None;
return(false);
}
public override bool Read()
{
switch (this.position)
{
case ReaderPosition.None:
this.position = ReaderPosition.StartElement;
return true;
case ReaderPosition.StartElement:
this.position = ReaderPosition.Content;
return true;
case ReaderPosition.Content:
this.position = ReaderPosition.EndElement;
return true;
case ReaderPosition.EndElement:
this.position = ReaderPosition.EOF;
return false;
case ReaderPosition.EOF:
return false;
default:
return false;
}
}
public override void Close()
{
if (!this.closed)
{
this.closed = true;
this.position = ReaderPosition.EOF;
this.readerQuotas = null;
if (this.streamOwner)
{
this.stream.Close();
}
}
}
public override bool MoveToElement()
{
if (this.position == ReaderPosition.None)
{
this.position = ReaderPosition.StartElement;
return true;
}
return false;
}
public override void MoveToStartElement()
{
base.MoveToStartElement();
this.position = ReaderPosition.StartElement;
}
public override bool Read()
{
switch (this.position)
{
case ReaderPosition.None:
position = ReaderPosition.StartElement;
return true;
case ReaderPosition.StartElement:
position = ReaderPosition.Content;
return true;
case ReaderPosition.Content:
position = ReaderPosition.EndElement;
return true;
case ReaderPosition.EndElement:
position = ReaderPosition.EOF;
return false;
case ReaderPosition.EOF:
return false;
default:
// we should never get here
// it means we managed to get into some unknown position in the stream
Fx.Assert(false, "Unknown read position in XmlByteStreamReader");
return false;
}
}
protected void EnsureInContent()
{
// This method is only being called from XmlByteStreamReader.ReadContentAsBase64.
// We don't block if the position is None or StartElement since we want our XmlByteStreamReader
// to be a little bit smarter when people just to access the content of the ByteStreamMessage.
if (this.position == ReaderPosition.EndElement
|| this.position == ReaderPosition.EOF)
{
throw FxTrace.Exception.AsError(
new InvalidOperationException(SR.ByteStreamReaderNotInByteStream(ByteStreamMessageUtility.StreamElementName)));
}
else
{
this.position = ReaderPosition.Content;
}
}
public override void MoveToStartElement()
{
base.MoveToStartElement();
this.position = ReaderPosition.StartElement;
}
public bool Read()
{
if (_itemEnumerator == null)
{
_itemEnumerator = _items.GetEnumerator();
}
bool isEmpty;
if (MoveNextValue())
{
_position = ReaderPosition.Value;
}
else if (MoveNextAttribute())
{
_position = ReaderPosition.Attribute;
}
else if (MoveNextItem(out isEmpty))
{
_position = isEmpty ? ReaderPosition.EmptyItem : ReaderPosition.Item;
}
else
{
_position = ReaderPosition.None;
return false;
}
return true;
}
protected XmlByteStreamReader(XmlDictionaryReaderQuotas quotas)
{
this.quotas = quotas;
this.position = ReaderPosition.None;
}
public override int ReadContentAsBase64(byte[] buffer, int index, int count)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (this.position != ReaderPosition.Content)
{
throw new InvalidOperationException("XML reader not in Element");
}
if (count == 0)
{
return 0;
}
int readCount = this.stream.Read(buffer, index, count);
if (readCount == 0)
{
this.position = ReaderPosition.EndElement;
}
return readCount;
}
protected XmlByteStreamReader(XmlDictionaryReaderQuotas quotas)
{
this.quotas = quotas;
this.position = ReaderPosition.None;
}
public override void Close()
{
if (!this.closed)
{
try
{
this.OnClose();
}
finally
{
this.position = ReaderPosition.EOF;
this.closed = true;
}
}
}
