Changeset 564:695cde9818ea for src/mlx/flight.py

Timestamp:

02/22/14 09:50:09 (10 years ago)

Author:

István Váradi <ivaradi@…>

Branch:

default

Phase:

public

Message:

The flight type is also considered when checking the arrival and departure times (re #227)

File:

• src/mlx/flight.py (modified) (4 diffs)

src/mlx/flight.py

@@ -5 +5 @@
 import const
 import util
+import time
 
 import threading
@@ -24 +25 @@
     It is also the hub for the other main objects participating in the handling of
     the flight."""
+
+    # The difference in minutes from the schedule which is considered a bit big
+    TIME_WARNING_DIFFERENCE = 5
+
+    # The difference in minutes from the schedule which is considered too big
+    TIME_ERROR_DIFFERENCE = 15
+
     @staticmethod
     def canLogCruiseAltitude(stage):
@@ -30 +38 @@
         return stage in [const.STAGE_CRUISE, const.STAGE_DESCENT,
                          const.STAGE_LANDING]
+
+    @staticmethod
+    def isTimeDifferenceTooMuch(scheduledTime, realTimestamp):
+        """Determine if the given real time differs to much from the scheduled
+        time.
+
+        Returns a tuple of:
+        - a boolean indicating if the difference is enough to warrant at least
+          a warning
+        - a boolean indicating if the difference is too big, i. e. unacceptable
+          without explanation."""
+        realTime = time.gmtime(realTimestamp)
+
+        scheduledMinute = scheduledTime.hour * 60 + scheduledTime.minute
+        realMinute = realTime.tm_hour * 60 + realTime.tm_min
+
+        diff1 = scheduledMinute - realMinute
+        diff2 = -1 * diff1
+
+        if diff1 < 0: diff1 += 60*24
+        else: diff2 += 60*24
+
+        diff = min(diff1, diff2)
+
+        return (diff>Flight.TIME_WARNING_DIFFERENCE,
+                diff>Flight.TIME_ERROR_DIFFERENCE)
 
     def __init__(self, logger, gui):
@@ -283 +317 @@
         """Get the RTO state."""
         return self._rtoState
+
+    @property
+    def blockTimeStartWrong(self):
+        """Determine if the block time start is wrong compared to the scheduled
+        departure time.
+
+        Returns a tuple of:
+        - a boolean indicating if the difference warrants a warning
+        - a boolean indicating if the difference warrants not only a warning,
+          but an error as well."""
+        return self.isTimeDifferenceTooMuch(self.bookedFlight.departureTime,
+                                            self.blockTimeStart)
+
+    @property
+    def blockTimeEndWrong(self):
+        """Determine if the block time end is wrong compared to the scheduled
+        arrival time.
+
+        Returns a tuple of:
+        - a boolean indicating if the difference warrants a warning
+        - a boolean indicating if the difference warrants not only a warning,
+          but an error as well."""
+        return self.isTimeDifferenceTooMuch(self.bookedFlight.arrivalTime,
+                                            self.blockTimeEnd)
 
     def handleState(self, oldState, currentState):