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# -*- coding: utf-8 -*-
import sys
import time
import psycopg2
from ebus.datastore import Datastore
from subprocess import Popen,PIPE
conn = psycopg2.connect("dbname=ebus user=ebus")
cur = conn.cursor()
sql = """SELECT * from sensor"""
cur.execute(sql)
sensors = cur.fetchall()
sensors = map(lambda a: (a[0], a[1]), sensors)
sensors = dict(sensors)
cur.close()
conn.close()
d = Datastore("testhdffiles")
pg_dump = Popen(["psql"], stdin=PIPE, stdout=PIPE)
pg_dump.stdin.write("COPY value TO stdout WITH DELIMITER '|' NULL AS '';\n")
c=0
for line in pg_dump.stdout.xreadlines():
(oid, timestamp, sensor_id, type, value_float, value_int, value_string) = line.split("|")
name = sensors[int(sensor_id)]
# if value_float == "\N": value_float = None
# else: value_float = float(value_float)
# if value_int == "\N": value_int = None
# else: value_int = int(value_int)
# if value_string =="\N": value_string = None
#
timestamp = time.strptime(timestamp.split(".")[0], "%Y-%m-%d %H:%M:%S")
timestamp = time.mktime(timestamp)
c += 1
if not c % 100000:
print c
d.flush()
if value_int != '':
d.addValueInt(name, timestamp, int(value_int))
elif value_float != '':
d.addValueFloat(name, timestamp, float(value_float))
elif value_string != '':
d.addValueString(name, timestamp, value_string)
else:
print 'skip: %s' % (name, timestamp, value_int, value_float, value_string)
d.close()
#@app.route('/sensor/:name')
#def sensor_data(soup,name):
# try:
# sensor_id = soup.sensor.filter(soup.sensor.name == name).one().id
#
# conn = soup.connection()
# sql = text("""SELECT timestamp, COALESCE(value_int, value_float) as "value_real"
# FROM value
# WHERE sensor_id = :sensor_id
# ORDER BY timestamp DESC
from sqlsoup import SQLSoup as SqlSoup
# LIMIT 1""")
# value = conn.execute(sql, sensor_id=sensor_id).first()
#
# return {'sensor':name,'data':[maketime(value.timestamp), float(value.value_real)], 'error':None}
# except Exception,e:
# return {'sensor':name,'data':None, 'error':str(e)}
#
#@app.route('/sensor/:name/:startdate/:enddate')
#def sensor_data_fromto(soup,name,startdate,enddate):
# try:
# interval = float(enddate) - float(startdate)
# modulo = interval / 500 #500 values
#
# startdate = datetime.datetime.fromtimestamp(float(startdate))
# enddate = datetime.datetime.fromtimestamp(float(enddate))
#
# if interval <= 0: raise Exception("Invalid interval")
# if interval >= 14 * 24 * 60 * 60: raise Exception("interval too big")
#
# sensor_id = soup.sensor.filter(soup.sensor.name == name).one().id
#
# conn = soup.connection()
# sql = text("""
# SELECT to_timestamp( extract(epoch from timestamp)::int - extract(epoch from timestamp)::int % :modulo ) "round_timestamp",
# AVG(COALESCE(value_int,value_float)) "value_real"
# FROM value
# WHERE timestamp > :startdate
# AND timestamp < :enddate
# AND sensor_id = :sensor_id
# GROUP BY "round_timestamp"
# ORDER BY "round_timestamp"
# """)
#
# values = conn.execute(sql,
# sensor_id=sensor_id,
# startdate=startdate,
# enddate=enddate,
# modulo=modulo).fetchall()
#
# values = map(lambda row: (maketime(row.round_timestamp), row.value_real),
# values)
#
# return {'sensor':name,'data':values, 'error':None}
# except Exception,e:
# return {'sensor':name, 'data':None, 'error':str(e)}
#
#@app.route('/sensor_cached/:name/:timestamp_from')
#def sensor_data_cached_fromto(soup, name, timestamp_from):
# try:
# timestamp_from = datetime.datetime.fromtimestamp(float(timestamp_from))
# sensor_id = soup.sensor.filter(soup.sensor.name == name).one().id
#
# # select data from cache-view
# conn = soup.connection()
# sql = text("""SELECT timestamp, value_real AS "value_real"
# FROM vi_value_cache
# WHERE timestamp >= :timestamp_from
# AND sensor_id = :sensor_id
# ORDER BY timestamp""")
# values = conn.execute(sql, timestamp_from=timestamp_from, sensor_id=sensor_id).fetchall()
# values = map(lambda row: (maketime(row.timestamp), row.value_real.__float__()),
# values)
#
# return {'sensor':name,'data':values, 'error':None}
# except Exception,e:
# return {'sensor':name, 'data':None, 'error':str(e)}
#
#import select
#import psycopg2
#
#@app.route('/stream')
#@app.route('/stream/:startdate')
#def stream(soup, startdate=None):
# connection = soup.connection()
# conn = connection.connection
#
# time_start = startdate != None and parsetime(float(startdate)) \
# or now(connection)
#
#
# conn.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)
#
# cursor = conn.cursor()
# cursor.execute("LISTEN evt_ebus_value_insert;")
#
# values = []
# fails = 0
# while fails < 5:
# if select.select([conn],[],[],10) == ([],[],[]):
# time_stop = now(connection)
# fails += 1
# else:
# conn.poll()
#
# notify = conn.notifies.pop()
# if not notify:
# continue
#
# time_stop = now(connection)
# print "time_stop %s"%time_stop
# sql = text("""SELECT sensor.name,
# value.timestamp,
# COALESCE(value.value_int,value.value_float) "value_real",
# value_string
# FROM value, sensor
# WHERE value.sensor_id = sensor.id
# AND timestamp >= :time_start
# AND timestamp < :time_stop""")
# values = map(lambda row: {
# "name":row.name,
# "timestamp":maketime(row.timestamp),
# "value_real":row.value_real != None and row.value_real.__float__() or None,
# "value_string":row.value_string
# },
# connection.execute(sql, time_start=time_start, time_stop=time_stop))
#
# break
#
# cursor.close()
# return {'time_start' : maketime(time_start), 'time_stop':maketime(time_stop),
# 'data':values}
#
#@app.route("/all_values")
#def all_values(soup):
# conn = soup.connection()
#
# sql = text("""
# SELECT sensor.name,
# value.timestamp,
# COALESCE(value.value_int,value.value_float) "value_real",
# value_string
# FROM value, sensor, (SELECT MAX(timestamp) as timestamp,
# sensor_id
# FROM value
# WHERE timestamp > CURRENT_TIMESTAMP - '15 minutes'::interval
# GROUP BY sensor_id) last_value
# WHERE value.timestamp = last_value.timestamp
# AND value.sensor_id = last_value.sensor_id
# AND value.sensor_id = sensor.id""")
#
# time_stop = now(conn)
# values = map(lambda row: {
# "name":row.name,
# "timestamp":maketime(row.timestamp),
# "value_real":row.value_real != None and row.value_real.__float__() or None,
# "value_string":row.value_string},
# conn.execute(sql))
#
# return {'data':values, 'time_stop':maketime(time_stop)}
#
## vim: autoindent tabstop=4 shiftwidth=4 expandtab softtabstop=4 filetype=python
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