66 lines
1.9 KiB
Python
66 lines
1.9 KiB
Python
import json
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import logging
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logger = logging.getLogger(__name__)
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class Band(object):
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def __init__(self, dict):
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self.name = dict["name"]
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self.lower_bound = dict["lower_bound"]
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self.upper_bound = dict["upper_bound"]
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self.frequencies = []
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if "frequencies" in dict:
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for (mode, freqs) in dict["frequencies"].items():
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if not isinstance(freqs, list):
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freqs = [freqs]
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for f in freqs:
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if not self.inBand(f):
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logger.warning(
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"Frequency for {mode} on {band} is not within band limits: {frequency}".format(
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mode=mode, frequency=f, band=self.name
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)
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)
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else:
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self.frequencies.append({"mode": mode, "frequency": f})
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def inBand(self, freq):
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return self.lower_bound <= freq <= self.upper_bound
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def getName(self):
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return self.name
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def getDialFrequencies(self, range):
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(low, hi) = range
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return [e for e in self.frequencies if low <= e["frequency"] <= hi]
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class Bandplan(object):
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sharedInstance = None
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@staticmethod
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def getSharedInstance():
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if Bandplan.sharedInstance is None:
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Bandplan.sharedInstance = Bandplan()
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return Bandplan.sharedInstance
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def __init__(self):
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f = open("bands.json", "r")
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bands_json = json.load(f)
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f.close()
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self.bands = [Band(d) for d in bands_json]
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def findBands(self, freq):
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return [band for band in self.bands if band.inBand(freq)]
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def findBand(self, freq):
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bands = self.findBands(freq)
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if bands:
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return bands[0]
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else:
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return None
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def collectDialFrequencies(self, range):
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return [e for b in self.bands for e in b.getDialFrequencies(range)]
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