def generateQueries(startTime, endTime, numQueries, accessGenerator, periodGenerator, popularityList):
querylist = list()
elapsed = (endTime - startTime).total_seconds()
accesslist = accessGenerator.generateDistribution(0, elapsed, numQueries, popularityList)
periodlist = periodGenerator.generateDistribution(1, elapsed, numQueries, popularityList)
histogram = {}
for i in xrange(numQueries):
q = Query(QueryGenerator.queryRunningCount, elapsed)
QueryGenerator.queryRunningCount += 1
sttime = accesslist[i]
#print "sttime: %s" % sttime
#if (starttime + periodlist[i] - 1 > elapsed):
# starttime = starttime - (periodlist[i] - (elapsed - starttime + 1)
newstart = startTime + dt.timedelta(0, sttime)
startstring = newstart.strftime('%Y-%m-%dT%H:%M:%S')
#print(periodlist[i], Utils.iso8601(dt.timedelta(seconds=periodlist[i])))
q.setInterval(startstring + "/" + Utils.iso8601(dt.timedelta(seconds=periodlist[i])))
querylist.append(q)
#print "interval: " + q.interval
#print "index: " , q.index
print "starttime: " , q.startTime
for j in xrange(periodlist[i]):
if (q.startTime+dt.timedelta(seconds=periodlist[i])) in historgram:
historgram[q.startTime+dt.timedelta(seconds=periodlist[i])] = historgram[q.startTime+dt.timedelta(seconds=periodlist[i])]+1;
else:
historgram[q.startTime+dt.timedelta(seconds=periodlist[i])] = 1
print histogram
return querylist
def generateQueriesFromFile(startTime, endTime, numQueries, accessGenerator, periodGenerator, filename):
querylist = list()
elapsed = (endTime - startTime).total_seconds()
#json loads file
with open(filename) as data_file:
data = json.load(data_file)
numEntries = len(data)
print "# of entries: ", numEntries
fullist = list()
dateaccessed = list()
for i in range(numEntries):
#print "i: ", i
period_interval_str = data[i]["event"]["interval"]
count = data[i]["event"]["count"]
#print "count: ", count
#print "i: ", i
period_pair = period_interval_str.split("/")
period_start = datetime.strptime(period_pair[0], '%Y-%m-%dT%H:%M:%S.%fZ')
period_end = datetime.strptime(period_pair[1], '%Y-%m-%dT%H:%M:%S.%fZ')
days=(period_end-period_start).days
#print "count: ", count
for j in range(count):
fullist.append([period_start, period_end])
#print "add entry: ", period_start
for k in xrange(days):
dateaccessed.append(period_start+relativedelta(days=k))
dateaccessed.sort()
originallength = (dateaccessed[len(dateaccessed)-1]-dateaccessed[0]).total_seconds()
truelength = (endTime-startTime).total_seconds()
#accesslist = accessGenerator.generateDistribution(0, elapsed, numQueries)
fullcount=len(fullist)
print "fullcount: ", fullcount
originallist = list()
for count2 in xrange(numQueries):
#querylist.append(fulllist[random.randint(0,querycount-1)])
original = fullist[random.randint(0, fullcount-1)]
#print "randint: ", random.randint(0, fullcount-1)
#print "0: " ,original[0]
#print "1: ", original[1]
originallist.append(original)
#periodlist = periodGenerator.generateDistribution(minPeriod, maxPeriod, numQueries)
for i in xrange(numQueries):
q = Query(QueryGenerator.queryRunningCount, elapsed)
originalstart = originallist[i][0]
position = (float)((originalstart-dateaccessed[0]).total_seconds())/originallength
truestart = startTime+relativedelta(seconds=int(round(position*truelength)))
newstart = truestart
startstring = newstart.strftime('%Y-%m-%dT%H:%M:%S')
period_interval_inSec = (originallist[i][1]-originallist[i][0]).total_seconds()
print "original period in seconds", period_interval_inSec
factor = (originallength)/(float(truelength))
period_interval_inSec = (period_interval_inSec)/(float(factor))
if period_interval_inSec < 1.0:
period_interval_inSec = 1
period_interval_inSec = int(period_interval_inSec)
print "final period in seconds", period_interval_inSec
#for count1 in range(0, period_count):
# querylist.append(q)
#print "interval: " + q.interval
q.setInterval(startstring + "/" + Utils.iso8601(dt.timedelta(seconds=period_interval_inSec)))
querylist.append(q)
print "interval: " + q.interval
print "index: " , q.index
return querylist
