public void Delete(string path, Action<ConnectionStatus> callback)
{
Thread deleteThread = new Thread(() =>
{
this._ResourceLock.WaitOne();
ConnectionState state = new ConnectionState
{
Callback = (c) =>
{
this._ResourceLock.Release();
if (callback != null)
callback(c);
},
Connection = this.CreateConnection(path, "DELETE")
};
this.BeginGetResponse(state);
});
deleteThread.Start();
}
private IEnumerable<Task> _AsyncSteps(HttpWebRequest request, TaskCompletionSource<ConnectionStatus> tcs, string data = null)
{
using (var tracer = new ConnectionStatusTracer(this._ConnectionSettings.TraceEnabled))
{
var timeout = this._ConnectionSettings.Timeout;
var state = new ConnectionState { Connection = request };
if (data != null)
{
var getRequestStream = Task.Factory.FromAsync<Stream>(request.BeginGetRequestStream, request.EndGetRequestStream, null);
//ThreadPool.RegisterWaitForSingleObject((getRequestStream as IAsyncResult).AsyncWaitHandle, ThreadTimeoutCallback, request, timeout, true);
yield return getRequestStream;
var requestStream = getRequestStream.Result;
try
{
byte[] buffer = Encoding.UTF8.GetBytes(data);
var writeToRequestStream = Task.Factory.FromAsync(requestStream.BeginWrite, requestStream.EndWrite, buffer, 0, buffer.Length, state);
yield return writeToRequestStream;
}
finally
{
requestStream.Close();
}
}
// Get the response
var getResponse = Task.Factory.FromAsync<WebResponse>(request.BeginGetResponse, request.EndGetResponse, null);
//ThreadPool.RegisterWaitForSingleObject((getResponse as IAsyncResult).AsyncWaitHandle, ThreadTimeoutCallback, request, timeout, true);
yield return getResponse;
// Get the response stream
using (var response = (HttpWebResponse)getResponse.Result)
using (var responseStream = response.GetResponseStream())
{
// Copy all data from the response stream
var output = new MemoryStream();
var buffer = new byte[BUFFER_SIZE];
while (responseStream != null)
{
var read = Task<int>.Factory.FromAsync(responseStream.BeginRead, responseStream.EndRead, buffer, 0, BUFFER_SIZE, null);
yield return read;
if (read.Result == 0) break;
output.Write(buffer, 0, read.Result);
}
// Decode the data and store the result
var result = Encoding.UTF8.GetString(output.ToArray());
var cs = new ConnectionStatus(result) { Request = data, RequestUrl = request.RequestUri.ToString(), RequestMethod = request.Method };
tcs.TrySetResult(cs);
tracer.SetResult(cs);
_ConnectionSettings.ConnectionStatusHandler(cs);
}
yield break;
}
}
private void PostDataUsingMethod(string method, string path,string data, Action<ConnectionStatus> callback)
{
if (method != "PUT" && method != "POST" && method != "DELETE")
{
throw new ArgumentException("Valid methods that can post a body are PUT, POST, DELETE", "method");
}
ConnectionState state = new ConnectionState()
{
Callback = callback,
Connection = this.CreateConnection(path, method),
PostData = data
};
state.Connection.BeginGetRequestStream(this.PostStreamOpened, state);
}
private void BeginGetResponse(ConnectionState state)
{
try
{
IAsyncResult result = (IAsyncResult)state.Connection.BeginGetResponse(
new AsyncCallback(GetResponseHandle),
state
);
ThreadPool.RegisterWaitForSingleObject(
result.AsyncWaitHandle,
new WaitOrTimerCallback(ThreadTimeoutCallback),
state.Connection,
this._ConnectionSettings.TimeOut,
true
);
}
catch (WebException e)
{
state.RaiseCallBack(e);
}
catch (Exception e)
{
state.RaiseCallBack(e);
}
}
private IEnumerable <Task> _AsyncSteps(HttpWebRequest request, TaskCompletionSource <ConnectionStatus> tcs, string data = null)
{
var timeout = this._ConnectionSettings.Timeout;
var state = new ConnectionState {
Connection = request
};
if (data != null)
{
var getRequestStream = Task.Factory.FromAsync <Stream>(request.BeginGetRequestStream, request.EndGetRequestStream, null);
ThreadPool.RegisterWaitForSingleObject((getRequestStream as IAsyncResult).AsyncWaitHandle, ThreadTimeoutCallback, request, timeout, true);
yield return(getRequestStream);
var requestStream = getRequestStream.Result;
try
{
byte[] buffer = Encoding.UTF8.GetBytes(data);
var writeToRequestStream = Task.Factory.FromAsync(requestStream.BeginWrite, requestStream.EndWrite, buffer, 0, buffer.Length, state);
yield return(writeToRequestStream);
}
finally
{
requestStream.Close();
}
}
// Get the response
var getResponse = Task.Factory.FromAsync <WebResponse>(request.BeginGetResponse, request.EndGetResponse, null);
ThreadPool.RegisterWaitForSingleObject((getResponse as IAsyncResult).AsyncWaitHandle, ThreadTimeoutCallback, request, timeout, true);
yield return(getResponse);
// Get the response stream
using (var response = (HttpWebResponse)getResponse.Result)
using (var responseStream = response.GetResponseStream())
{
// Copy all data from the response stream
var output = new MemoryStream();
var buffer = new byte[BUFFER_SIZE];
while (responseStream != null)
{
var read = Task <int> .Factory.FromAsync(responseStream.BeginRead, responseStream.EndRead, buffer, 0, BUFFER_SIZE, null);
yield return(read);
if (read.Result == 0)
{
break;
}
output.Write(buffer, 0, read.Result);
}
// Decode the data and store the result
var result = Encoding.UTF8.GetString(output.ToArray());
var cs = new ConnectionStatus(result)
{
Request = data, RequestUrl = request.RequestUri.ToString(), RequestMethod = request.Method
};
tcs.TrySetResult(cs);
}
yield break;
}
private IEnumerable<Task> _AsyncSteps(HttpWebRequest request, TaskCompletionSource<ConnectionStatus> tcs, string data = null)
{
var timeout = this._ConnectionSettings.Timeout;
if (!this._ResourceLock.WaitOne(timeout))
{
var m = "Could not start the operation before the timeout of " + timeout + "ms completed while waiting for the semaphore";
tcs.SetResult(new ConnectionStatus(new TimeoutException(m)));
yield break;
}
try
{
var state = new ConnectionState { Connection = request };
if (data != null)
{
var getRequestStream = Task.Factory.FromAsync<Stream>(request.BeginGetRequestStream, request.EndGetRequestStream, null);
ThreadPool.RegisterWaitForSingleObject((getRequestStream as IAsyncResult).AsyncWaitHandle, ThreadTimeoutCallback, request, timeout, true);
yield return getRequestStream;
var requestStream = getRequestStream.Result;
try
{
byte[] buffer = Encoding.UTF8.GetBytes(data);
var writeToRequestStream = Task.Factory.FromAsync(requestStream.BeginWrite, requestStream.EndWrite, buffer, 0, buffer.Length, state);
yield return writeToRequestStream;
}
finally
{
requestStream.Close();
}
}
// Get the response
var getResponse = Task.Factory.FromAsync<WebResponse>(request.BeginGetResponse, request.EndGetResponse, null);
ThreadPool.RegisterWaitForSingleObject((getResponse as IAsyncResult).AsyncWaitHandle, ThreadTimeoutCallback, request, timeout, true);
yield return getResponse;
// Get the response stream
using (var response = (HttpWebResponse)getResponse.Result)
using (var responseStream = response.GetResponseStream())
{
// Copy all data from the response stream
var output = new MemoryStream();
var buffer = new byte[BUFFER_SIZE];
while (true)
{
var read = Task<int>.Factory.FromAsync(responseStream.BeginRead, responseStream.EndRead, buffer, 0, BUFFER_SIZE, null);
yield return read;
if (read.Result == 0) break;
output.Write(buffer, 0, read.Result);
}
// Decode the data and store the result
var result = Encoding.UTF8.GetString(output.ToArray());
var cs = new ConnectionStatus(result) { Request = data };
tcs.TrySetResult(cs);
}
}
finally
{
this._ResourceLock.Release();
}
}
