private bool SuppressAlert(Alert newAlert)
{
lock (alertHistory)
{
int count = alertHistory.Count;
DateTime currTime = DateTime.Now;
for (int index = count - 1; index >= 0; index--)
{
KeyValuePair<DateTime,Alert> kvPair = alertHistory.ElementAt(index);
TimeSpan timeDiff = currTime - kvPair.Key;
//if we've gone far back into history, lets stop
if (timeDiff.TotalSeconds > settings.SuppressSeconds)
{
return false;
}
//we found an equivalent notification
if (kvPair.Value.Equals(newAlert))
return true;
}
}
return false;
}
private void InsertAlert(Alert alert)
{
lock (alertHistory)
{
if (alertHistory.Count == MaxAlertHistory)
alertHistory.RemoveAt(0);
//take care of duplicates
while (alertHistory.ContainsKey(alert.TimeTriggered))
alert.TimeTriggered += TimeSpan.FromMilliseconds(1);
alertHistory.Add(alert.TimeTriggered, alert);
}
}
public bool Equals(Alert other)
{
return (SensorFriendlyName.Equals(other.SensorFriendlyName) &&
SensorLocation.Equals(other.SensorLocation) &&
Value == other.Value);
}
private void GenerateMessage(Alert newAlert)
{
List<Attachment> attachmentList = new List<Attachment>();
string linkMessage = String.Format("Go to Lab of Things Alerts application to see list of alerts.");
string subject = "Alert";
string message = String.Format("Dear {0} - \n\n{1}.\n\n{2}\n\nCheers.\n",
settings.UserName,
newAlert.FriendlyToString(),
linkMessage
);
string alertTxtName = "Alert-" + DateTime.Now.ToString("yyyyMMdd-HHmmss");
AddTxtDataStream(alertTxtName,newAlert.ToString());
foreach (VPort cameraPort in cameraPorts.Keys)
{
VCapability capability = cameraPorts[cameraPort];
IList<VParamType> retVals = cameraPort.Invoke(RoleCamera.RoleName, RoleCamera.OpGetImageName, new List<VParamType>(),
ControlPort, capability, ControlPortCapability);
if (retVals[0].Maintype() != (int)ParamType.SimpleType.error)
{
string cameraFriendlyName = cameraPort.GetInfo().GetFriendlyName();
logger.Log("{0} got image from {1}", this.ToString(), cameraFriendlyName);
if (retVals.Count >= 1 && retVals[0].Value() != null)
{
byte[] imageBytes = (byte[])retVals[0].Value();
string mimeType = "image/jpeg";
Attachment attachment = new Attachment(new MemoryStream(imageBytes), cameraFriendlyName + "." + "jpg", mimeType);
attachmentList.Add(attachment);
string alertImgName = "WaterAlertImg-" + DateTime.Now.ToString("yyyyMMdd-HHmmss");
AddPicDataStream(alertImgName,imageBytes);
}
else
{
logger.Log("{0} got null image", this.ToString());
}
}
}
if (settings.Mode == AlertMode.emailonly || settings.Mode == AlertMode.both)
SendEmail(subject, message, attachmentList);
if (settings.Mode == AlertMode.smsonly || settings.Mode == AlertMode.both)
SendSms(subject, message);
}
////Email address to receive the alert pictures.
//string emailAdrs;
public override void Start()
{
logger.Log("Started: {0}", ToString());
try
{
settings = new AlertSettings();
settings.Mode = (moduleInfo.Args().Length > 0) ?
(AlertMode)Enum.Parse(typeof(AlertMode), moduleInfo.Args()[0], true) :
AlertMode.emailonly;
settings.StartHourMin = (moduleInfo.Args().Length > 1) ? int.Parse(moduleInfo.Args()[1]) : 0;
settings.EndHourMin = (moduleInfo.Args().Length > 2) ? int.Parse(moduleInfo.Args()[2]) : 2400;
settings.SuppressSeconds = (moduleInfo.Args().Length > 3) ? int.Parse(moduleInfo.Args()[3]) : 5; //AJB shorten suppression
settings.UserName = (moduleInfo.Args().Length > 4) ? moduleInfo.Args()[4] : "user";
settings.emailAddress = GetPrivateConfSetting("NotificationEmail");
}
catch (Exception exception)
{
logger.Log("{0}: error parsing arguments: {1}", exception.ToString(), String.Join(" ", moduleInfo.Args()));
}
DoorNotifierSvc service = new DoorNotifierSvc(logger, this);
//serviceHost = DoorNotifierSvc.CreateServiceHost(
// service,
// new Uri(moduleInfo.BaseURL()+"/webapp"));
serviceHost = DoorNotifierSvc.CreateServiceHost(logger, this, service, moduleInfo.BaseURL() + "/webapp");
serviceHost.Open();
webUiServer = new WebFileServer(moduleInfo.BinaryDir(), moduleInfo.BaseURL(), logger);
logger.Log("{0}: service is open for business at {1}", ToString(), moduleInfo.BaseURL());
//no services are exported by this application
//..... get the list of current ports from the platform
IList<VPort> allPortsList = GetAllPortsFromPlatform();
if (allPortsList != null)
{
foreach (VPort port in allPortsList)
{
PortRegistered(port);
}
}
//insert a fake notification for testing
Alert newAlert = new Alert()
{
TimeTriggered = DateTime.Now,
SensorFriendlyName = "fake sensor",
SensorLocation = "fake location",
Value = 1,
Acknowledged = false,
};
InsertAlert(newAlert);
}
public override void OnNotification(string roleName, string opName, IList<VParamType> retVals, VPort senderPort)
{
if (retVals.Count >= 1)
{
byte val = (byte) (int) retVals[0].Value();
//hack for techfest since we are using a multi-level switch as a doorbell
//if (RoleSwitchMultiLevel.RoleName.Equals(roleName, StringComparison.CurrentCultureIgnoreCase))
// val = 0;
Alert newAlert = new Alert() { TimeTriggered = DateTime.Now,
SensorFriendlyName = senderPort.GetInfo().GetFriendlyName(),
SensorLocation = senderPort.GetInfo().GetLocation().Name(),
Value = val,
Acknowledged = false, };
bool notify = //settings.Mode != AlertMode.none &&
IsAlertTime() &&
!SuppressAlert(newAlert) &&
((RoleSwitchMultiLevel.RoleName.Equals(roleName, StringComparison.CurrentCultureIgnoreCase) && (val == 99 || val == 0)) ||
(RoleSensor.RoleName.Equals(roleName, StringComparison.CurrentCultureIgnoreCase) && val == 255));
logger.Log("{0}: got notified by {1} [{2}] val = {3} notify = {4}\n",
this.ToString(), newAlert.SensorFriendlyName, roleName, val.ToString(), notify.ToString());
if (notify)
{
InsertAlert(newAlert);
GenerateMessage(newAlert);
}
}
else
{
logger.Log("{0}: got unexpected retvals [{1}] from {2}", ToString(), retVals.Count.ToString(), senderPort.ToString());
}
}
