protected override DbDataReader ExecuteDbDataReader(CommandBehavior behavior)
{
TableStorageFieldCollection parameters = ConvertParameters();
string entryId;
HttpWebRequest request = GetRequest(parameters, out entryId);
try
{
WebResponse response = request.GetResponse();
Stream responseStream = response.GetResponseStream();
return(new TableStorageDataReader(responseStream));
}
catch (WebException we)
{
HttpWebResponse response = (HttpWebResponse)we.Response;
if (response == null)
{
throw new TableStorageException(we.Message, we);
}
if (response.StatusCode == HttpStatusCode.NotFound)
{
return(new TableStorageDataReader(null));
}
throw TableStorageException.Parse(we);
}
}
public override int ExecuteNonQuery()
{
TableStorageFieldCollection parameters = ConvertParameters();
string entryId;
HttpWebRequest request = GetRequest(parameters, out entryId);
request.ContentType = "application/atom+xml";
Stream requestStream = request.GetRequestStream();
using (TableStorageDataWriter writer = new TableStorageDataWriter(requestStream))
{
writer.WriteStartEntry(entryId);
foreach (TableStorageField parameter in parameters)
{
writer.WriteField(parameter);
}
writer.WriteEndEntry();
writer.Flush();
}
HttpWebResponse response = null;
try
{
response = (HttpWebResponse)request.GetResponse();
return(1);
}
catch (WebException we)
{
response = (HttpWebResponse)we.Response;
if (response == null)
{
throw new TableStorageException(we.Message, we);
}
if (response.StatusCode == HttpStatusCode.NotFound)
{
return(0);
}
throw TableStorageException.Parse(we);
}
finally
{
if (response != null)
{
response.Close();
}
}
}
public static TableStorageException Parse(WebException innerException)
{
ThrowHelper.CheckArgumentNull(innerException, "innerException");
HttpWebResponse response = (HttpWebResponse)innerException.Response;
if(response == null)
{
return new TableStorageException(innerException.Message, innerException);
}
Stream stream = response.GetResponseStream();
Debug.Assert(stream != null);
if(stream.CanSeek)
{
stream.Seek(0, SeekOrigin.Begin);
}
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;
settings.IgnoreWhitespace = true;
XmlReader reader = XmlReader.Create(stream, settings);
reader.ReadStartElement("error");
reader.ReadStartElement("code");
string tableStorageErrorCode = reader.ReadContentAsString();
reader.ReadEndElement();
reader.ReadStartElement("message");
string message = reader.ReadContentAsString();
reader.ReadEndElement();
TableStorageException exception = new TableStorageException(tableStorageErrorCode, message, innerException);
while(reader.IsStartElement())
{
string name = reader.LocalName;
bool isEmpty = reader.IsEmptyElement;
reader.ReadStartElement(name);
if(!isEmpty)
{
if(!exception.Data.Contains(name))
{
string value = reader.ReadContentAsString();
exception.Data.Add(name, value);
}
reader.ReadEndElement();
}
}
reader.ReadEndElement();
return exception;
}
public static TableStorageException Parse(WebException innerException)
{
ThrowHelper.CheckArgumentNull(innerException, "innerException");
HttpWebResponse response = (HttpWebResponse)innerException.Response;
if (response == null)
{
return(new TableStorageException(innerException.Message, innerException));
}
Stream stream = response.GetResponseStream();
Debug.Assert(stream != null);
if (stream.CanSeek)
{
stream.Seek(0, SeekOrigin.Begin);
}
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;
settings.IgnoreWhitespace = true;
XmlReader reader = XmlReader.Create(stream, settings);
reader.ReadStartElement("error");
reader.ReadStartElement("code");
string tableStorageErrorCode = reader.ReadContentAsString();
reader.ReadEndElement();
reader.ReadStartElement("message");
string message = reader.ReadContentAsString();
reader.ReadEndElement();
TableStorageException exception = new TableStorageException(tableStorageErrorCode, message, innerException);
while (reader.IsStartElement())
{
string name = reader.LocalName;
bool isEmpty = reader.IsEmptyElement;
reader.ReadStartElement(name);
if (!isEmpty)
{
if (!exception.Data.Contains(name))
{
string value = reader.ReadContentAsString();
exception.Data.Add(name, value);
}
reader.ReadEndElement();
}
}
reader.ReadEndElement();
return(exception);
}
