/// <summary>
/// Parses the appInfo and experiment ticket, inserts the task into the database and
/// creates a dataManager and dataSources defined in the appInfo.
/// </summary>
/// <param name="appInfo"></param>
/// <param name="expCoupon"></param>
/// <param name="expTicket"></param>
/// <returns></returns>
public virtual LabTask CreateLabTask(LabAppInfo appInfo, Coupon expCoupon, Ticket expTicket)
{
LabTask labTask = CreateLabTask(appInfo, expTicket);
if (((labTask.storage != null) && (labTask.storage.Length > 0)))
{
// Create DataSourceManager to manage dataSources
DataSourceManager dsManager = new DataSourceManager();
// set up an experiment storage handler
ExperimentStorageProxy ess = new ExperimentStorageProxy();
ess.OperationAuthHeaderValue = new OperationAuthHeader();
ess.OperationAuthHeaderValue.coupon = expCoupon;
ess.Url = labTask.storage;
dsManager.essProxy = ess;
dsManager.ExperimentID = labTask.experimentID;
dsManager.AppKey = appInfo.appKey;
// Note these dataSources are written to by the application and sent to the ESS
if ((appInfo.dataSources != null) && (appInfo.dataSources.Length > 0))
{
string[] sources = appInfo.dataSources.Split(',');
// Use the experimentID as the storage parameter
foreach (string s in sources)
{
// dsManager.AddDataSource(createDataSource(s));
}
}
TaskProcessor.Instance.AddDataManager(labTask.taskID, dsManager);
}
TaskProcessor.Instance.Add(labTask);
return labTask;
}
// Create DataSourceManager to manage dataSources
public DataSourceManager CreateDataSourceManager(LabTask task, Coupon expCoupon)
{
DataSourceManager dsManager = new DataSourceManager();
// set up an experiment storage handler
ExperimentStorageProxy ess = new ExperimentStorageProxy();
ess.OperationAuthHeaderValue = new OperationAuthHeader();
ess.OperationAuthHeaderValue.coupon = expCoupon;
ess.Url = task.storage;
dsManager.essProxy = ess;
dsManager.ExperimentID = task.experimentID;
//dsManager.AppKey = task.labAppID.;
return dsManager;
}
public void AddDataManager(long taskID, DataSourceManager mgr)
{
lock (dataManagers)
{
dataManagers.Add(taskID, mgr);
}
}
public LabTask CreateLabTask(LabAppInfo appInfo, Coupon expCoupon, Ticket expTicket)
{
// set defaults
DateTime startTime = DateTime.UtcNow;
long duration = -1L;
long experimentID = 0;
int status = -1;
string statusViName = null;
string statusTemplate = null;
string templatePath = null;
LabDB dbManager = new LabDB();
string qualName = null;
string fullName = null; // set defaults
string viName = null;
//CHeck that a labVIEW interface revision is set
//if (appInfo.rev == null || appInfo.rev.Length < 2)
//{
// appInfo.rev = ConfigurationManager.AppSettings["LabViewVersion"];
//}
////Parse experiment payload, only get what is needed
string payload = expTicket.payload;
XmlQueryDoc expDoc = new XmlQueryDoc(payload);
string essService = expDoc.Query("ExecuteExperimentPayload/essWebAddress");
string startStr = expDoc.Query("ExecuteExperimentPayload/startExecution");
string durationStr = expDoc.Query("ExecuteExperimentPayload/duration");
string groupName = expDoc.Query("ExecuteExperimentPayload/groupName");
string userName = expDoc.Query("ExecuteExperimentPayload/userName");
string expIDstr = expDoc.Query("ExecuteExperimentPayload/experimentID");
if ((startStr != null) && (startStr.Length > 0))
{
startTime = DateUtil.ParseUtc(startStr);
}
if ((durationStr != null) && (durationStr.Length > 0) && !(durationStr.CompareTo("-1") == 0))
{
duration = Convert.ToInt64(durationStr);
}
if ((expIDstr != null) && (expIDstr.Length > 0))
{
experimentID = Convert.ToInt64(expIDstr);
}
if (appInfo.extraInfo != null && appInfo.extraInfo.Length > 0)
{
// Note should have either statusVI or template pair
// Add Option for VNCserver access
try
{
XmlQueryDoc viDoc = new XmlQueryDoc(appInfo.extraInfo);
statusViName = viDoc.Query("extra/status");
statusTemplate = viDoc.Query("extra/statusTemplate");
templatePath = viDoc.Query("extra/templatePath");
}
catch (Exception e)
{
string err = e.Message;
}
}
// log the experiment for debugging
Logger.WriteLine("Experiment: " + experimentID + " Start: " + DateUtil.ToUtcString(startTime) + " \tduration: " + duration);
long statusSpan = DateUtil.SecondsRemaining(startTime, duration);
if (!IsLoaded(appInfo.application))
{
viName = LoadVI(appInfo.path, appInfo.application);
if (false) // Check for controls first
{
string[] names = new string[4];
object[] values = new object[4];
names[0] = "CouponId";
values[0] = expCoupon.couponId;
names[1] = "Passcode";
values[1] = expCoupon.passkey;
names[2] = "IssuerGuid";
values[2] = expCoupon.issuerGuid;
names[3] = "ExperimentId";
values[3] = experimentID;
SetControlValues(viName, names, values);
}
OpenFrontPanel(viName, true, LabViewTypes.eFPState.eVisible);
}
else
{
viName = LoadVI(appInfo.path, appInfo.application);
}
if (viName == null)
{
status = -1;
string err = "Unable to Find: " + appInfo.path + @"\" + appInfo.application;
Logger.WriteLine(err);
throw new Exception(err);
}
// Get qualifiedName
qualName = qualifiedName(viName);
fullName = appInfo.path + @"\" + appInfo.application;
status = GetVIStatus(viName);
Logger.WriteLine("CreateLabTask - " + qualName + ": VIstatus: " + status);
switch (status)
{
case -10:
throw new Exception("Error GetVIStatus: " + status);
break;
case -1:
// VI not in memory
throw new Exception("Error GetVIStatus: " + status);
break;
case 0: // eBad == 0
break;
case 1: // eIdle == 1 vi in memory but not running
//LabViewTypes.eFPState fpState = GetFPStatus(viName);
//if (fpState != LabViewTypes.eFPState.eVisible)
//{
OpenFrontPanel(viName, true, LabViewTypes.eFPState.eVisible);
//}
ResetVI(viName);
break;
case 2: // eRunTopLevel: this should be the LabVIEW application
break;
case 3: // eRunning
//Unless the Experiment is reentrant it should be stopped and be reset.
if (!appInfo.reentrant)
{
int stopStatus = StopVI(viName);
if (stopStatus != 0)
{
AbortVI(viName);
}
ResetVI(viName);
}
break;
default:
throw new Exception("Error GetVIStatus: unknown status: " + status);
break;
}
try
{
SetBounds(viName, 0, 0, appInfo.width, appInfo.height);
Logger.WriteLine("SetBounds: " + appInfo.application);
}
catch (Exception sbe)
{
Logger.WriteLine("SetBounds exception: " + Utilities.DumpException(sbe));
}
SubmitAction("unlockvi", qualifiedName(viName));
Logger.WriteLine("unlockvi Called: ");
// Create the labTask & store in database;
LabViewTask task = new LabViewTask();
task.labAppID = appInfo.appID;
task.experimentID = experimentID;
task.groupName = groupName;
task.startTime = startTime;
if (duration > 0)
task.endTime = startTime.AddTicks(duration * TimeSpan.TicksPerSecond);
else
task.endTime = DateTime.MinValue;
task.Status = LabTask.eStatus.Scheduled;
task.couponID = expTicket.couponId;
task.storage = essService;
task.data = task.constructTaskXml(appInfo.appID, fullName, appInfo.rev, statusViName, essService);
long taskID = dbManager.InsertTaskLong(task);
task.taskID = taskID;
if ((statusTemplate != null) && (statusTemplate.Length > 0))
{
statusViName = CreateFromTemplate(templatePath, statusTemplate, task.taskID.ToString());
}
if (((essService != null) && (essService.Length > 0)))
{
// Create DataSourceManager to manage dataSocket connections
DataSourceManager dsManager = new DataSourceManager();
// set up an experiment storage handler
ExperimentStorageProxy ess = new ExperimentStorageProxy();
ess.OperationAuthHeaderValue = new OperationAuthHeader();
ess.OperationAuthHeaderValue.coupon = expCoupon;
ess.Url = essService;
dsManager.essProxy = ess;
dsManager.ExperimentID = experimentID;
dsManager.AppKey = qualName;
// Note these dataSources are written to by the application and sent to the ESS
if ((appInfo.dataSources != null) && (appInfo.dataSources.Length > 0))
{
string[] sockets = appInfo.dataSources.Split(',');
// Use the experimentID as the storage parameter
foreach (string s in sockets)
{
LVDataSocket reader = new LVDataSocket();
dsManager.AddDataSource(reader);
if (s.Contains("="))
{
string[] nv = s.Split('=');
reader.Type = nv[1];
reader.Connect(nv[0], LabDataSource.READ_AUTOUPDATE);
}
else
{
reader.Connect(s, LabDataSource.READ_AUTOUPDATE);
}
}
}
TaskProcessor.Instance.AddDataManager(task.taskID, dsManager);
}
TaskProcessor.Instance.Add(task);
return task;
}
protected void Application_Start(Object sender, EventArgs e)
{
try
{
string path = ConfigurationManager.AppSettings["logPath"];
if (path != null && path.Length > 0)
{
Logger.LogPath = path;
Logger.WriteLine("");
Logger.WriteLine("#############################################################################");
Logger.WriteLine(iLabGlobal.Release);
Logger.WriteLine("Application_Start: starting");
}
ProcessAgentDB.RefreshServiceAgent();
//Should load any active tasks and update any expired tasks
LabDB dbService = new LabDB();
TaskProcessor.Instance.WaitTime = 60000;
LabTask[] activeTasks = dbService.GetActiveTasks();
int count = 0;
foreach (LabTask task in activeTasks)
{
if (task != null)
{
if (task.storage != null && task.storage.Length > 0)
{
Coupon expCoupon = dbService.GetCoupon(task.couponID, task.issuerGUID);
DataSourceManager dsManager = new DataSourceManager(task);
BeeAPI api = new BeeAPI();
FileWatcherDataSource fds = api.CreateBeeDataSource(expCoupon, task, "data", false);
dsManager.AddDataSource(fds);
fds.Start();
TaskProcessor.Instance.AddDataManager(task.taskID, dsManager);
}
TaskProcessor.Instance.Add(new BeeTask(task));
count++;
}
}
taskThread = new TaskHandler(TaskProcessor.Instance);
ticketRemover = new TicketRemover();
if (Logger.IsLogging)
Logger.WriteLine("Added " + count + " active Tasks\r\n");
}
catch (Exception err)
{
if (Logger.IsLogging)
Logger.WriteLine(Utilities.DumpException(err));
}
}
public static LabTask CreateLabTask(LabAppInfo appInfo, Coupon expCoupon, Ticket expTicket)
{
// set defaults
DateTime startTime = DateTime.UtcNow;
long duration = -1L;
long experimentID = 0;
int status = -1;
string statusViName = null;
string statusTemplate = null;
string templatePath = null;
LabDB dbManager = new LabDB();
string qualName = null;
string fullName = null; // set defaults
LabTask labTask = null;
LabViewTask task = null;
VirtualInstrument vi = null;
LabViewInterface lvi = null;
////Parse experiment payload, only get what is needed
string payload = expTicket.payload;
XmlQueryDoc expDoc = new XmlQueryDoc(payload);
string essService = expDoc.Query("ExecuteExperimentPayload/essWebAddress");
string startStr = expDoc.Query("ExecuteExperimentPayload/startExecution");
string durationStr = expDoc.Query("ExecuteExperimentPayload/duration");
string groupName = expDoc.Query("ExecuteExperimentPayload/groupName");
string userName = expDoc.Query("ExecuteExperimentPayload/userName");
if ((startStr != null) && (startStr.Length > 0))
{
startTime = DateUtil.ParseUtc(startStr);
}
if ((durationStr != null) && (durationStr.Length > 0) && !(durationStr.CompareTo("-1") == 0))
{
duration = Convert.ToInt64(durationStr);
}
if (appInfo.extraInfo != null && appInfo.extraInfo.Length > 0)
{
// Note should have either statusVI or template pair
// Add Option for VNCserver access
try
{
XmlQueryDoc viDoc = new XmlQueryDoc(appInfo.extraInfo);
statusViName = viDoc.Query("extra/status");
statusTemplate = viDoc.Query("extra/statusTemplate");
templatePath = viDoc.Query("extra/templatePath");
}
catch (Exception e)
{
string err = e.Message;
}
}
// log the experiment for debugging
Utilities.WriteLog("Experiment: " + experimentID + " Start: " + DateUtil.ToUtcString(startTime) + " \tduration: " + duration);
long statusSpan = DateUtil.SecondsRemaining(startTime, duration);
if ((appInfo.server != null) && (appInfo.server.Length > 0) && (appInfo.port > 0))
{
lvi = new LabViewRemote(appInfo.server, appInfo.port);
}
else
{
lvi = new LabViewInterface();
}
if (!lvi.IsLoaded(appInfo.application))
{
vi = lvi.loadVI(appInfo.path, appInfo.application);
vi.OpenFrontPanel(true, FPStateEnum.eVisible);
}
else
{
vi = lvi.GetVI(appInfo.path, appInfo.application);
}
if (vi == null)
{
status = -1;
string err = "Unable to Find: " + appInfo.path + @"\" + appInfo.application;
Utilities.WriteLog(err);
throw new Exception(err);
}
// Get qualifiedName
qualName = lvi.qualifiedName(vi);
fullName = appInfo.path + @"\" + appInfo.application;
status = lvi.GetVIStatus(vi);
Utilities.WriteLog("CreateLabTask - " + qualName + ": VIstatus: " + status);
switch (status)
{
case -10:
throw new Exception("Error GetVIStatus: " + status);
break;
case -1:
// VI not in memory
throw new Exception("Error GetVIStatus: " + status);
break;
case 0: // eBad == 0
break;
case 1: // eIdle == 1 vi in memory but not running
FPStateEnum fpState = vi.FPState;
if (fpState != FPStateEnum.eVisible)
{
vi.OpenFrontPanel(true, FPStateEnum.eVisible);
}
vi.ReinitializeAllToDefault();
break;
case 2: // eRunTopLevel: this should be the LabVIEW application
break;
case 3: // eRunning
//Unless the Experiment is reentrant it should be stopped and be reset.
if(!appInfo.reentrant){
int stopStatus = lvi.StopVI(vi);
if (stopStatus != 0)
{
lvi.AbortVI(vi);
}
vi.ReinitializeAllToDefault();
}
break;
default:
throw new Exception("Error GetVIStatus: unknown status: " + status);
break;
}
try
{
lvi.SetBounds(vi, 0, 0, appInfo.width, appInfo.height);
Utilities.WriteLog("SetBounds: " + appInfo.application);
}
catch (Exception sbe)
{
Utilities.WriteLog("SetBounds exception: " + Utilities.DumpException(sbe));
}
lvi.SubmitAction("unlockvi", lvi.qualifiedName(vi));
Utilities.WriteLog("unlockvi Called: ");
// Set up in-memory and database task control structures
DataSourceManager dsManager = null;
// Create the labTask & store in database;
labTask = dbManager.InsertTask(appInfo.appID, experimentID,
groupName, startTime, duration,
LabTask.eStatus.Scheduled, expTicket.couponId, expTicket.issuerGuid, null);
if (labTask != null)
{
//Convert the generic LabTask to a LabViewTask
task = new LabViewTask(labTask);
}
if ((statusTemplate != null) && (statusTemplate.Length > 0))
{
statusViName = lvi.CreateFromTemplate(templatePath, statusTemplate, task.taskID.ToString());
}
if (((essService != null) && (essService.Length > 0)) && ((appInfo.dataSources != null) && (appInfo.dataSources.Length > 0)))
{
// Create DataSourceManager to manage dataSocket connections
dsManager = new DataSourceManager();
// set up an experiment storage handler
ExperimentStorageProxy ess = new ExperimentStorageProxy();
ess.OperationAuthHeaderValue = new OperationAuthHeader();
ess.OperationAuthHeaderValue.coupon = expCoupon;
ess.Url = essService;
dsManager.essProxy = ess;
dsManager.ExperimentID = experimentID;
dsManager.AppKey = qualName;
string[] sockets = appInfo.dataSources.Split(',');
// Use the experimentID as the storage parameter
foreach (string s in sockets)
{
LVDataSocket reader = new LVDataSocket();
dsManager.AddDataSource(reader);
if (s.Contains("="))
{
string[] nv = s.Split('=');
reader.Type = nv[1];
reader.Connect(nv[0], LabDataSource.READ_AUTOUPDATE);
}
else
{
reader.Connect(s, LabDataSource.READ_AUTOUPDATE);
}
}
TaskProcessor.Instance.AddDataManager(task.taskID, dsManager);
}
string taskData = null;
taskData = LabTask.constructTaskXml(appInfo.appID, fullName,appInfo.rev, statusViName, essService);
dbManager.SetTaskData(task.taskID, taskData);
task.data = taskData;
TaskProcessor.Instance.Add(task);
return task;
}
protected void Page_Load(object sender, System.EventArgs e)
{
LabDB dbManager = new LabDB();
int appID = 0;
long expID = 0;
LabTask task = null;
string expLen = null;
string pageURL = null;
bool useTaskDuration = true;
// Query values from the request
if (!IsPostBack)
{
string appKey = Request.QueryString["app"];
string coupon_Id = Request.QueryString["coupon_id"];
string passkey = Request.QueryString["passkey"];
string issuerGUID = Request.QueryString["issuer_guid"];
string returnTarget = Request.QueryString["sb_url"];
expLen = Request.QueryString["explen"];
if ((returnTarget != null) && (returnTarget.Length > 0))
Session["sbUrl"] = returnTarget;
Logger.WriteLine("BEElab: " + Request.Url.ToString());
// this should be the Experiment Coupon data
if (!(passkey != null && passkey != "" && coupon_Id != null && coupon_Id != "" && issuerGUID != null && issuerGUID != ""))
{
Logger.WriteLine("BEElab: " + "AccessDenied missing Experiment credentials");
Response.Redirect("AccessDenied.aspx?text=missing+Experiment+credentials.", true);
}
long expCoupId = Convert.ToInt64(coupon_Id);
Coupon expCoupon = new Coupon(issuerGUID, expCoupId, passkey);
//Check the database for ticket and coupon, if not found Redeem Ticket from
// issuer and store in database.
//This ticket should include group, experiment id and be valid for this moment in time??
Ticket expTicket = dbManager.RetrieveAndVerify(expCoupon, TicketTypes.EXECUTE_EXPERIMENT);
if (expTicket != null)
{
if (expTicket.IsExpired())
{
Response.Redirect("AccessDenied.aspx?text=The ExperimentExecution+ticket+has+expired.", true);
}
Session[""] = issuerGUID;
Session[""] = expCoupId;
Session[""] = passkey;
////Parse experiment payload, only get what is needed
string payload = expTicket.payload;
XmlQueryDoc expDoc = new XmlQueryDoc(payload);
string tzStr = expDoc.Query("ExecuteExperimentPayload/userTZ");
if ((tzStr != null) && (tzStr.Length > 0))
Session["userTZ"] = tzStr;
string groupName = expDoc.Query("ExecuteExperimentPayload/groupName");
Session["groupName"] = groupName;
string sbStr = expDoc.Query("ExecuteExperimentPayload/sbGuid");
string essUrl = expDoc.Query("ExecuteExperimentPayload/essWebAddress");
expID = Convert.ToInt64(expDoc.Query("ExecuteExperimentPayload/experimentID"));
Session["brokerGUID"] = sbStr;
//Get Lab specific info for this URL or group
LabAppInfo appInfo = null;
// Experiment is specified by 'app=appKey'
if (appKey != null && appKey.Length > 0)
{
appInfo = dbManager.GetLabApp(appKey);
}
// This is no longer the case as the USS handles groups and permissions
//else // Have to use groupName & Servicebroker THIS REQUIRES groups & permissions are set in database
//{
// appInfo = dbManager.GetLabAppForGroup(groupName, sbStr);
//}
if (appInfo == null)
{
Response.Redirect("AccessDenied.aspx?text=Unable+to+find+application+information,+please+notify+your+administrator.", true);
}
// Check to see if an experiment with this ID is already running
// Check for an existing task for this experiment
// If found redirect to the graph page, do not abort running controller program
LabTask.eStatus status = dbManager.ExperimentStatus(expID, sbStr);
if (status == LabTask.eStatus.NotFound)
{
// Check for existing tasks that may be using resources
// For now only close other instances of the lab
List<LabTask> curTasks = TaskProcessor.Instance.GetTasks(appInfo.appID);
if (curTasks != null && curTasks.Count > 0)
{
foreach (LabTask t in curTasks)
{
//ToDo: check if the tasks should all be closed
DataSourceManager dsManager = TaskProcessor.Instance.GetDataManager(t.taskID);
if (dsManager != null)
{
// Need to close existing data Sources
TaskProcessor.Instance.Remove(t);
t.Close();
}
}
}
// Create a new Experiment task
// Use taskFactory to create a new task
BeeAPI factory = new BeeAPI();
task = factory.CreateLabTask(appInfo, expTicket);
if (task != null)
{
if (task.storage != null && task.storage.Length > 0)
{
DataSourceManager dsManager = new DataSourceManager(task);
FileWatcherDataSource fds = factory.CreateBeeDataSource(expCoupon, task, "data", true);
dsManager.AddDataSource(fds);
fds.Start();
TaskProcessor.Instance.AddDataManager(task.taskID, dsManager);
}
TaskProcessor.Instance.Add(new BeeTask(task));
//set Presentation page tp appPage
pageURL = appInfo.page;
}
else
{
Response.Redirect("AccessDenied.aspx?text=Unable+to+launch++application,+please+notify+your+administrator.", true);
}
}
else
{ // An existing Experiment
task = dbManager.GetTask(expID, sbStr);
if (task.Status == LabTask.eStatus.Scheduled)
{
pageURL = appInfo.appURL;
}
else if (task.Status == LabTask.eStatus.Running)
{
pageURL = ProcessAgentDB.ServiceAgent.codeBaseUrl + @"/BEEgraph.aspx";
}
else if (task.Status == LabTask.eStatus.Aborted
|| task.Status == LabTask.eStatus.Closed
|| task.Status == LabTask.eStatus.Completed
|| task.Status == LabTask.eStatus.Expired)
{
Response.Redirect("AccessDenied.aspx?text=The+requested+experiment+is+no+longer+running.", true);
}
}
}
if (pageURL != null && pageURL.Length > 0)
{
StringBuilder buf = new StringBuilder(pageURL + "?expid=" + expID);
Session["opCouponID"] = coupon_Id;
Session["opPasscode"] = passkey;
Session["opIssuer"] = issuerGUID;
buf.Append("&coupon_id=" + coupon_Id);
buf.Append("&passkey=" + passkey);
buf.Append("&issuer_guid=" + issuerGUID);
buf.Append("&sb_url=" + returnTarget);
if(expLen != null && expLen.Length > 0)
buf.Append("&explen=" + expLen);
//if (useTaskDuration)
//{
// TimeSpan taskDur = task.endTime.Subtract(DateTime.UtcNow);
// int hours = Convert.ToInt32(taskDur.TotalHours);
// buf.Append("&explen=" + hours);
//}
Response.Redirect(buf.ToString(), true);
}
else
{
Response.Redirect("AccessDenied.aspx?text=Unable+to+launch++application,+please+notify+your+administrator.", true);
}
}
}
