69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
#!/usr/bin/python
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import os
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import sys
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import pickle
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print("load ~55GB data into memory! do not try this if not on server machine")
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############################
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# extract measurements
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############################
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folderpath = sys.argv[1]
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all_pickle_fp = "{}/all.pickle".format(folderpath)
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outputfolder = folderpath.rstrip('/') + '_extracted'
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if not os.path.isdir(outputfolder):
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os.makedirs(outputfolder)
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headline = '#lon,lat,sig,measure_at,upload_at,rating,speed,direction'
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headlines = {
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'UMTS': headline + ',rnc,cidshort,psc',
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'GSM': headline + ',timingadv',
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'LTE': headline + ',timingadv,tac,pci',
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'CDMA': headline + ',sid,nid,bid',
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}
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if os.path.isfile(all_pickle_fp):
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# load data only
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data = pickle.load(open(all_pickle_fp), 'rb')
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else:
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# load and combine data
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files = [file for file in os.listdir(folderpath) if '_parsed.pickle' in file]
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data = {}
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for file in sorted(files, key=lambda x: int(x.rstrip('_parsed.pickle').split('_')[-1])):
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print("loading {}".format(file))
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datatmp = pickle.load(open("{}/{}".format(folderpath, file), 'rb'))
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print("combining..")
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for key in datatmp:
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if key not in data:
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data[key] = datatmp[key]
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else:
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data[key][1] += datatmp[key][1]
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pickle.dump(data, open(all_pickle_fp), 'wb')
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print("extracting each file to disk (only groundtruth we cared)..")
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counter = 0
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for filepath in data:
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if "with_groundtruth" not in filepath:
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continue
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if not os.path.isfile(filepath):
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outputsubfolder = os.path.dirname(filepath)
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if not os.path.isdir(outputsubfolder):
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try:
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os.makedirs(outputsubfolder)
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except BaseException:
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print("err: cannot create folder {}!!!!".format(outputsubfolder))
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continue
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with open(filepath, 'w') as of:
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of.write(headlines.get(data[filepath][0], headline) + '\n')
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with open(filepath, 'a') as of:
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for dataline in data[filepath][1]:
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of.write(dataline + "\n")
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counter += 1
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if counter % 1000 == 0:
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print("progress: {} out of {} files extracted ({:.2f}%)".format(counter, len(data), 100.0 * counter / len(data)))
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