protected override object StartAsyncOperation()
{
// Initialise the DataController so that we can fetch images.
DataControllerConfig config = new DataControllerConfig(
(string)Outer.m_SettingsManager.GetCurrentSetting(Setting.ApiKey),
(string)Outer.m_SettingsManager.GetCurrentSetting(Setting.RootUrl));
return(Outer.m_DataController.BeginInitialise(config));
}
protected override void StartInitialiseTask(DataControllerConfig config, Guid guid, CancellationToken token)
{
// Create client
m_RestClient = new RestClient(Config.UrlRoot);
// Construct a request for a token
RestRequest request = new RestRequest(API_KEY_RESOURCE, Method.GET);
request.AddParameter(API_KEY_PARAMETER, config.ApiKey);
// Begin the request
ResourceRequest(
request,
(ApiKey response) =>
{
m_Token = response.Token;
OnInitialisationComplete(new InitialisationCompleteEventArgs(InitialisationResult.Initialised, guid, DataRequestResult.Success));
},
() => OnInitialisationComplete(new InitialisationCompleteEventArgs(InitialisationResult.Error, guid, DataRequestResult.Failed)));
}
protected override void StartInitialiseTask(DataControllerConfig config, Guid guid, CancellationToken token)
{
// Define and run the task, passing in the token.
Task initialiseTask = Task.Run(() =>
{
Log.Debug("Initialise task running.");
// Connect to SQlite.
SQLiteConnection dbConnection = new SQLiteConnection(
String.Format(CONNECTION_STRING, SQLITE_DATABASE));
// Set the LINQ data context to the database connection.
m_Database = new SimPrintsDb(dbConnection);
// Obtain image files on local machine, to be matched with database entries.
m_ImageFiles = GetImageFiles(IMAGES_FILE_PATH);
if (m_ImageFiles != null &&
m_ImageFiles.Count() > 0)
{
m_State = InitialisationResult.Initialised;
}
else
{
Log.Error("Failed to get image files.");
m_State = InitialisationResult.Error;
}
OnInitialisationComplete(
new InitialisationCompleteEventArgs(m_State, guid, DataRequestResult.Success));
}, token);
// Raise the GetCaptureComplete event in the case where the Task faults.
initialiseTask.ContinueWith((Task t) =>
{
if (t.IsFaulted)
{
Log.Error("Failed initialise controller: " + t.Exception.Message, t.Exception);
OnInitialisationComplete(new InitialisationCompleteEventArgs(
InitialisationResult.Uninitialised, guid, DataRequestResult.TaskFailed));
}
});
}
protected override void StartInitialiseTask(DataControllerConfig config, Guid guid, CancellationToken token)
{
// TODO: determine if it is possible to leave the user field empty
m_ClientFactory.BeginGetClient(APP_SECRETS, API_CONTEXTS, "");
}