public void DebugAdd(String user, String text, DataLoadedCallback callback)
{
if (String.IsNullOrEmpty(text)) return;
var urlString = string.Format("{0}?user={1}&debugtext={2}&ranval={3}", ApiUrl, user, text, Environment.TickCount);
var webRequest = new WebClient();
webRequest.DownloadStringCompleted += WebRequestDownloadStringCompleted;
var guid = Guid.NewGuid();
_callback.Add(guid, callback);
webRequest.DownloadStringAsync(new Uri(urlString), guid);
}
/// <summary>
/// Overriding classes call this method to initiate a request.
/// </summary>
/// <param name="url">Caller URL</param>
/// <param name="parameters">Caller parameters</param>
/// <param name="callback">Returns on response</param>
/// <param name="userObject">UserState, if needed</param>
protected void CallApi(String url, IDictionary<string, string> parameters, DataLoadedCallback callback, object userObject = null)
{
Guid guid;
Utils.NotNullArgument(callback, "callback", @"Callback for an ApiOperation MUST EXIST!");
switch (ApiRequestType)
{
case RequestType.Get:
guid = WebRequestDispatcher.InitiateGet(url, OnOperationCompleted, parameters, userObject);
break;
case RequestType.Post:
guid = WebRequestDispatcher.InitiatePost(url, OnOperationCompleted, parameters, userObject);
break;
default:
throw new ArgumentOutOfRangeException();
}
lock (this)
{
_concurrentRequests.Add(guid, callback);
}
}
/// <summary>
/// Cancel a request by callback
/// </summary>
/// <param name="callback">Target callbacks </param>
public void CancelRequest(DataLoadedCallback callback)
{
var cancellable = _concurrentRequests.Where(kvp => kvp.Value == callback).ToList();
foreach (var keyValuePair in cancellable)
{
Utils.ConcurrentWebService.CancelRequest(keyValuePair.Key);
_concurrentRequests.Remove(keyValuePair);
}
}
