def readFromTimeStampSKR(firstTimeStampIn):
# read the first line of QKDSequece.log
line = datafile.readline()
print("Reading SKR data from QKDSequence.log file...")
# list to hold QBER data entries
dataEntriesSKR = []
# pass each line in file until program reaches first timestamp of interest
while line != "":
entryComps = line.split("INFO")
# process timestamp of each entry
timeStampComps = entryComps[0].split()
calendarComps = timeStampComps[0].split("-")
year = int(calendarComps[0])
month = int(calendarComps[1])
day = int(calendarComps[2])
timeComps = timeStampComps[1].split(":")
hour = int(timeComps[0])
minute = int(timeComps[1])
second = int(timeComps[2])
entryTimestamp = TimeStamp(year, month, day, hour, minute, second)
if entryTimestamp.__str__() == enteredTimestamp.__str__():
break
line = datafile.readline()
# read each line until the end of the file
while line != "":
# split the entry into a timestamp and a message
entryComps = line.split("INFO")
# process timestamp of each entry
timeStampComps = entryComps[0].split()
calendarComps = timeStampComps[0].split("-")
year = int(calendarComps[0])
month = int(calendarComps[1])
day = int(calendarComps[2])
timeComps = timeStampComps[1].split(":")
hour = int(timeComps[0])
minute = int(timeComps[1])
second = int(timeComps[2])
entryTimestamp = TimeStamp(year, month, day, hour, minute, second)
# Not all message types follow the same structure. If the entry
# components list is only of length 1, it is not SKR data and can be ignored
if len(entryComps) > 1:
# split the message into message type and message title/value
messageComps = entryComps[1].split(":")
# make sure that there is more than one component in the message
if len(messageComps) > 1:
# if the entry contains secret key rate data, record this entry
if "Secret Key Rate" in messageComps[1]:
# splits privacy amplification data into title of value and value
type = "Secret Key Rate"
# extract the SKR value from the entry
titleAndValue = messageComps[1].split("=")
valueAndUnit = titleAndValue[1].split()
value = float(valueAndUnit[0])
entrySKR = DataEntry(entryTimestamp, type, value)
dataEntriesSKR.append(entrySKR)
# read next line of data
line = datafile.readline()
datafile.close()
# Create a file to store SKR Data
SKRfile = open("SKR.txt", "w+")
for entry in dataEntriesSKR:
SKRfile.write(str(entry.timestamp.getRelativeSeconds(enteredTimestamp)) \
+ "\t" + str(entry.value) + "\n")
print(str(entry))
SKRfile.close()
firstTimestamp = TimeStamp(inputYear, inputMonth, inputDay, inputHour, \
inputMinute, inputSecond)
# read the first line of rawlogs
line = datafile.readline()
print("Reading QBER data from rawlogs file...")
# list to hold QBER data entries
dataEntries = []
# pass each line in rawlogs until program reaches first timestamp of interest
while line != "":
dataEntryComps = line.split()
dataTimestamp = dataEntryComps[0]
if dataTimestamp.__str__() == firstTimestamp.__str__():
break
line = datafile.readline()
# process each data entry following first timestamp of interest
while line != "":
dataEntryComps = line.split()
dataTimestampString = dataEntryComps[0]
# extract timestamp data from each line
calendarComps = dataTimestampString.split("-")
year = int(calendarComps[0])
month = int(calendarComps[1])
day = int(calendarComps[2])
timeComps = calendarComps[3].split(":")
hour = int(timeComps[0])
