detect and pass band information to the map

owrx/bands.py

@@ -0,0 +1,32 @@
+import json
+
+
+class Band(object):
+    def __init__(self, dict):
+        self.name = dict["name"]
+        self.lower_bound = dict["lower_bound"]
+        self.upper_bound = dict["upper_bound"]
+
+    def inBand(self, freq):
+        return self.lower_bound <= freq <= self.upper_bound
+
+    def getName(self):
+        return self.name
+
+
+class Bandplan(object):
+    sharedInstance = None
+    @staticmethod
+    def getSharedInstance():
+        if Bandplan.sharedInstance is None:
+            Bandplan.sharedInstance = Bandplan()
+        return Bandplan.sharedInstance
+
+    def __init__(self):
+        f = open("bands.json", "r")
+        bands_json = json.load(f)
+        f.close()
+        self.bands = [Band(d) for d in bands_json]
+
+    def findBand(self, freq):
+        return next(band for band in self.bands if band.inBand(freq))