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kv7-db-auto.py
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import sys
import zmq
import simplejson as serializer
import time
from ctx import ctx
from gzip import GzipFile
from cStringIO import StringIO
import psycopg2
import time
from datetime import datetime, timedelta
from const import ZMQ_KV7
from twisted.internet import task
from twisted.internet import reactor
import codecs
import os
sys.stderr.write('Setting up a ZeroMQ PUSH: %s\n' % (ZMQ_KV7))
context = zmq.Context()
push = context.socket(zmq.PUSH)
push.connect(ZMQ_KV7)
variables = {}
MINUTES_FORWARD = 90
def secondsFromMidnight(time):
hours, minutes, seconds = time.split(':')
return (int(hours)*60*60) + (int(minutes)*60) + int(seconds)
def time(seconds):
hours = seconds / 3600
if hours < 0:
hours += 24
seconds -= 3600*hours
minutes = seconds / 60
if minutes < 0:
minutes *= -1
seconds -= 60*minutes
return "%02d:%02d:%02d" % (hours, minutes, seconds)
now = datetime.now() + timedelta(minutes=MINUTES_FORWARD) - timedelta(seconds=120)
def broadcastmeta(dbname):
print 'Fetching meta'
conn = psycopg2.connect("dbname='"+dbname+"'")
cur = conn.cursor()
cur.execute("SELECT dataownercode,lineplanningnumber,linepublicnumber,linename,transporttype from line", [])
meta = {'LINE' : {}, 'DESTINATION' : {}, 'TIMINGPOINT' : {}}
rows = cur.fetchall()
for row in rows:
line_id = intern(row[0] + '_' + row[1])
meta['LINE'][line_id] = {'LinePublicNumber' : intern(row[2]), 'LineName' : intern(row[3]), 'TransportType' : intern(row[4])}
cur.close()
cur = conn.cursor()
cur.execute("SELECT dataownercode,destinationcode,destinationname50 from destination", [])
rows = cur.fetchall()
for row in rows:
destination_id = intern(row[0] + '_' + row[1])
meta['DESTINATION'][destination_id] = intern(row[2])
cur.close()
cur = conn.cursor()
cur.execute("""
SELECT timingpointcode,timingpointname,timingpointtown,stopareacode,ST_Y(the_geom)::NUMERIC(9,7) AS lat,ST_X(the_geom)::NUMERIC(8,7) AS lon
FROM
(SELECT DISTINCT dataownercode,userstopcode FROM localservicegrouppasstime WHERE journeystoptype != 'INFOPOINT') as u
JOIN usertimingpoint as ut USING (dataownercode,userstopcode)
JOIN (select *,ST_Transform(st_setsrid(st_makepoint(coalesce(locationx_ew,0), coalesce(locationy_ns,0)), 28992), 4326) AS the_geom FROM timingpoint) as t USING (timingpointcode)
""",[])
kv7rows = cur.fetchall()
for kv7row in kv7rows:
meta['TIMINGPOINT'][intern(kv7row[0])] = {'TimingPointName' : intern(kv7row[1]), 'TimingPointTown' : intern(kv7row[2]), 'StopAreaCode' : kv7row[3], 'Latitude' : float(kv7row[4]), 'Longitude' : float(kv7row[5])}
#if kv7row[7] != 'UNKNOWN' and kv7row[7] is not None:
# meta['TIMINGPOINT'][kv7row[0]]['TimingPointWheelChairAccessible'] = kv7row[7]
#if kv7row[6] != 'UNKNOWN' and kv7row[6] is not None:
# meta['TIMINGPOINT'][kv7row[0]]['TimingPointVisualAccessible'] = kv7row[6]
push.send_json(meta)
cur.close()
conn.close()
print 'meta refreshed'
def currentdatabase():
output = codecs.open('/var/ovapi/kv7.openov.nl/GOVI/CURRENTDB', 'r', 'UTF-8')
newdb = output.read().split('\n')[0]
if 'lastdb' not in variables or variables['lastdb'] != newdb:
broadcastmeta(newdb)
variables['lastdb'] = newdb
return newdb
def fetchandpushkv7():
try:
fetchandpush()
except Exception as e:
print e
def fetchandpush():
dbname = currentdatabase()
print 'Using database : ' + dbname
conn = psycopg2.connect("dbname='"+dbname+"'")
global now # this has to be done better
now += timedelta(seconds=60)
startrange = now.strftime("%H:%M:00")
startdate = now.strftime("%Y-%m-%d")
endrange = (datetime.now() + timedelta(minutes=MINUTES_FORWARD)).strftime("%H:%M:00")
now = (datetime.now() + timedelta(minutes=MINUTES_FORWARD) - timedelta(minutes=1))
startdate48 = ((now + timedelta(seconds=60))-timedelta(days=1)).strftime("%Y-%m-%d")
if endrange == '00:00:00':
endrange = '24:00:00'
shours,sminutes,sseconds = startrange.split(':')
ehours,eminutes,eseconds = endrange.split(':')
startrange48 = str(int(shours)+24) + ':' + sminutes + ':00'
endrange48 = str(int(ehours)+24) + ':' + eminutes + ':00'
sys.stdout.write(startrange + '-' + endrange + '@ ' + startdate)
sys.stdout.write(' ')
sys.stdout.write(startrange48 + '-' + endrange48 + '@ ' +startdate48 + '\n')
cur = conn.cursor()
cur.execute("""
select
p.dataownercode,p.localservicelevelcode,p.lineplanningnumber,journeynumber,fortifyordernumber,p.userstopcode,userstopordernumber,linedirection,
p.destinationcode,targetarrivaltime,targetdeparturetime,sidecode,wheelchairaccessible,journeystoptype,istimingstop,productformulatype,timingpointcode,
timingpointdataownercode,operationdate ,journeypatterncode
from localservicegrouppasstime as p, usertimingpoint as u, localservicegroupvalidity as v
where exists (
SELECT 1
FROM localservicegrouppasstime AS f, localservicegroupvalidity as v
WHERE f.journeystoptype = 'FIRST' AND f.dataownercode = p.dataownercode
AND f.localservicelevelcode = p.localservicelevelcode AND f.lineplanningnumber = p.lineplanningnumber
and f.journeynumber = p.journeynumber AND f.fortifyordernumber = p.fortifyordernumber
AND (
(operationdate = date %s AND targetarrivaltime >= %s AND targetarrivaltime < %s )
OR (operationdate = date %s AND targetarrivaltime >= %s AND targetarrivaltime < %s)
)
AND f.localservicelevelcode = v.localservicelevelcode AND f.dataownercode = v.dataownercode
)
AND p.dataownercode = u.dataownercode AND p.userstopcode = u.userstopcode AND journeystoptype != 'INFOPOINT'
AND p.localservicelevelcode = v.localservicelevelcode AND p.dataownercode = v.dataownercode
AND (
(operationdate = date %s AND targetarrivaltime >= %s and targetarrivaltime < %s)
OR (operationdate = date %s AND targetarrivaltime >= %s)
)
""", [startdate, startrange,endrange,startdate48,startrange48,endrange48,startdate,startrange,startrange48,startdate48,startrange48])
kv7rows = cur.fetchall()
passes = {'PASSTIMES' : {} }
updatetimestamp = datetime.today().strftime("%Y-%m-%dT%H:%M:%S") + "+02:00"
print str(len(kv7rows)) + ' rows from db'
for kv7row in kv7rows:
row = {}
row['DataOwnerCode'] = kv7row[0]
row['LocalServiceLevelCode'] = kv7row[1]
row['LinePlanningNumber'] = kv7row[2]
row['JourneyNumber'] = kv7row[3]
row['FortifyOrderNumber'] = kv7row[4]
row['UserStopCode'] = kv7row[5]
row['UserStopOrderNumber'] = kv7row[6]
row['LineDirection'] = int(kv7row[7])
row['DestinationCode'] = kv7row[8]
row['TargetArrivalTime'] = kv7row[9]
row['ExpectedArrivalTime'] = kv7row[9]
row['TargetDepartureTime'] = kv7row[10]
row['ExpectedDepartureTime'] = kv7row[10]
row['SideCode'] = kv7row[11]
if row['SideCode'] == '-':
del(row['SideCode'])
row['WheelChairAccessible'] = kv7row[12]
row['JourneyStopType'] = kv7row[13]
if not kv7row[14]:
row['IsTimingStop'] = 0
else:
row['IsTimingStop'] = 1
row['ProductFormulaType'] = kv7row[15]
row['TimingPointCode'] = kv7row[16]
row['TimingPointDataOwnerCode'] = kv7row[17]
row['OperationDate'] = kv7row[18].strftime("%Y-%m-%d")
row['JourneyPatternCode'] = kv7row[19]
if row['JourneyPatternCode'] == None:
row['JourneyPatternCode'] = 0
row['TripStopStatus'] = 'PLANNED'
row['LastUpdateTimeStamp'] = updatetimestamp
pass_id = '_'.join([row['DataOwnerCode'], str(row['LocalServiceLevelCode']), row['LinePlanningNumber'], str(row['JourneyNumber']), str(row['FortifyOrderNumber']), row['UserStopCode'], str(row['UserStopOrderNumber'])])
passes['PASSTIMES'][pass_id] = row
if (len(passes) > 50):
push.send_json(passes)
passes = {'PASSTIMES' : {} }
cur.close()
conn.close()
push.send_json(passes)
l = task.LoopingCall(fetchandpushkv7)
l.start(60.0) # call every second
reactor.run()