/// <summary>
///
/// </summary>
/// <param name="uri"></param>
/// <param name="requestMethod"></param>
/// <param name="bufferSize"></param>
/// <param name="destinationStream"></param>
/// <param name="contentLength"></param>
/// <param name="isAsync"></param>
/// <returns></returns>
protected WebRequestContext CreateRequestContext(Uri uri, WebRequestMethod requestMethod, int bufferSize, FileStream destinationStream, long contentLength, bool isAsync = false)
{
var _request = CreateRequest(uri, requestMethod);
var _context = new WebRequestContext(_request, requestMethod, bufferSize, destinationStream, contentLength, isAsync);
return(_context);
}
/// <summary>
///
/// </summary>
/// <param name="uri"></param>
/// <param name="requestMethod"></param>
/// <param name="isAsync"></param>
/// <returns></returns>
protected WebRequestContext CreateRequestContext(Uri uri, WebRequestMethod requestMethod, bool isAsync = false)
{
var _request = CreateRequest(uri, requestMethod);
var _context = new WebRequestContext(_request, requestMethod, isAsync);
return(_context);
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
/// <returns></returns>
protected virtual void HandleRequestResponseStream(WebRequestContext requestContext)
{
if (!requestContext.IsInError && null != requestContext.Response)
{
try
{
requestContext.RequestState = new WebRequestState(requestContext.Response.GetResponseStream());
if (!requestContext.IsAsync)
{
while (0 < requestContext.ReadContent())
{
requestContext.WriteContent();
}
return;
}
requestContext.BeginReadContent(new AsyncCallback(BeginReadContentCallback));
}
catch (Exception ex)
{
requestContext.HandleThrownException(ex);
RaiseFaultedEvent(requestContext);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
protected virtual void HandleWriteContentToRequestStream(WebRequestContext requestContext)
{
if (!requestContext.IsInError && null != requestContext.RequestState)
{
try
{
if (!requestContext.IsAsync)
{
_bytesRead = 0;
_totalBytesRead = 0L;
_byteBuffer = new byte[requestContext.BufferSize];
while (0 < (_bytesRead = requestContext.Content.Read(_byteBuffer, 0, _byteBuffer.Length)))
{
_totalBytesRead += _bytesRead;
requestContext.RequestState.SourceStream.Write(_byteBuffer, 0, _bytesRead);
}
return;
}
requestContext.BeginReadContent(new AsyncCallback(BeginReadContentCallback));
}
catch (Exception ex)
{
requestContext.HandleThrownException(ex);
RaiseFaultedEvent(requestContext);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="uri"></param>
/// <param name="requestMethod"></param>
/// <param name="bufferSize"></param>
/// <param name="sourceStream"></param>
/// <param name="contentLength"></param>
/// <returns></returns>
protected WebRequestContext CreateRequestContext(Uri uri, WebRequestMethod requestMethod, int bufferSize, FileStream sourceStream, bool isAsync = false)
{
var _request = CreateRequest(uri, requestMethod);
var _context = new WebRequestContext(_request, requestMethod, bufferSize, sourceStream, isAsync);
_byteBuffer = new byte[bufferSize];
return(_context);
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
void RaiseFaultedEvent(WebRequestContext requestContext)
{
var _argument = new WebRequestEventArgs(requestContext);
if (null != Faulted)
{
Faulted(this, _argument);
}
OnFaulted(_argument);
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
void RaiseWritingProgressChanged(WebRequestContext requestContext)
{
var _argument = new WebRequestWritingProgressChangedEventArgs(requestContext, requestContext.RequestState.TotalBytesHandled, requestContext.ContentLength);
if (null != WritingProgressChanged)
{
WritingProgressChanged(this, _argument);
}
OnWritingProgressChanged(_argument);
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
void RaiseReadingCompletedEvent(WebRequestContext requestContext)
{
var _argument = new WebRequestEventArgs(requestContext);
if (null != ReadingCompleted)
{
ReadingCompleted(this, _argument);
}
OnReadingCompleted(_argument);
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
void RaiseGettingComplatedEvent(WebRequestContext requestContext)
{
var _argument = new WebRequestEventArgs(requestContext);
if (null != GettingComplated)
{
GettingComplated(this, _argument);
}
OnGettingCompleted(_argument);
}
/// <summary>
///
/// </summary>
public void Initialize(WebRequestContext requestContext)
{
if (!_isInitialized)
{
_bytesHandled = 0;
_totalBytesHandled = 0L;
_byteBuffer = new byte[requestContext.BufferSize];
_isInitialized = true;
}
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
/// <returns></returns>
protected virtual void HandleRequestResponse(WebRequestContext requestContext)
{
if (!requestContext.IsInError)
{
try
{
if (!requestContext.IsAsync)
{
requestContext.Response = requestContext.Request.GetResponse();
return;
}
requestContext.Request.BeginGetResponse(new AsyncCallback(BeginGetResponseCallback), requestContext);
}
catch (Exception ex)
{
requestContext.HandleThrownException(ex);
RaiseFaultedEvent(requestContext);
}
}
}
/// <summary> /// /// </summary> /// <param name="requestContext"></param> protected abstract IExternalResult GetRequestResult(WebRequestContext requestContext);
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
/// <param name="bytesRead"></param>
/// <param name="totalBytesToRead"></param>
public WebRequestReadingProgressChangedEventArgs(WebRequestContext requestContext, long bytesRead, long totalBytesToRead)
: base(requestContext)
{
_bytesRead = bytesRead;
_totalBytesToRead = totalBytesToRead;
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
/// <param name="bytesWritten"></param>
/// <param name="totalBytesToWrite"></param>
public WebRequestWritingProgressChangedEventArgs(WebRequestContext requestContext, long bytesWritten, long totalBytesToWrite)
: base(requestContext)
{
_bytesWritten = bytesWritten;
_totalBytesToWrite = totalBytesToWrite;
}
/// <summary>
///
/// </summary>
/// <param name="requestContext"></param>
public WebRequestEventArgs(WebRequestContext requestContext)
: base()
{
_requestContext = requestContext;
}
