Changeset 1171:ac0820702c0c

Timestamp:

10/20/24 12:56:57 (5 weeks ago)

Author:

István Váradi <ivaradi@…>

Branch:

python3

Phase:

public

Message:

The fleet can be read from a JSON file

File:

• src/mlx/rpccommon.py (modified) (5 diffs)

src/mlx/rpccommon.py

@@ -10 +10 @@
 class Plane(object):
     """Information about an airplane in the fleet."""
+    _jsonAttributes = ["tailNumber", "aircraftType",
+                       "dow", "dowNumCabinCrew", "maxPassengers",
+                       "fuselageLength", "wingSpan"]
+
     @staticmethod
     def str2status(letter):
@@ -25 +29 @@
                "P" if status==const.PLANE_PARKING else ""
 
+    @staticmethod
+    def fromJSON(data):
+        """Create a Plane object from the given JSON data."""
+        plane = Plane()
+
+        for attributeName in Plane._jsonAttributes:
+            setattr(plane, attributeName, data[attributeName])
+        plane.status = const.PLANE_AWAY
+        plane.gateNumber = "-"
+
+        return plane
+
     @property
     def hasStairs(self):
@@ -32 +48 @@
                                      const.AIRCRAFT_F70,
                                      const.AIRCRAFT_DH8D]
+
+    def toJSON(self):
+        """Create a JSON representation of the Plane object from the given JSON data."""
+        data = {}
+        for attributeName in Plane._jsonAttributes:
+            data[attributeName] = getattr(self, attributeName)
+        return data
 
     def _setStatus(self, letter):
@@ -53 +76 @@
 class Fleet(object):
     """Information about the whole fleet."""
+    @staticmethod
+    def fromJSON(data):
+        """Load the fleet data from the given JSON file."""
+        fleet = Fleet()
+        for planeData in data:
+            fleet._addPlane(Plane.fromJSON(planeData))
+        return fleet
+
     def __init__(self):
         """Construct the fleet information by reading the given file object."""
@@ -96 +127 @@
             plane.gateNumber = gateNumber
 
+    def toJSON(self):
+        """Convert the fleet into a JSON data."""
+        return [plane.toJSON() for plane in self._planes.values()]
+
     def _addPlane(self, plane):
         """Add the given plane to the fleet."""