Added JSON support #55
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Added JSON support by method QNL.getStats_json.
Usage shown below
******** SET-UP **************
QNL = sc._jvm.com.qubole.sparklens.QuboleNotebookListener.registerAndGet(sc._jsc.sc())
import time
if (QNL.estimateSize() > QNL.getMaxDataSize()):
QNL.purgeJobsAndStages()
startTime = int(round(time.time() * 1000))
******** SET-UP **************
SPARK-CODE
******** END **************
endTime = int(round(time.time() * 1000))
time.sleep(QNL.getWaiTimeInSeconds())
stats_json = QNL.getStats_json(startTime, endTime)
print(stats_json)
Save to FIle, Print will truncate the data
******** END **************