def new_log(username):
with open('log.txt',
'r+') as reader: # file object for reading and writing
print("Enter New Journal")
content = reader.read() # getting file content into a single object
journal = input() # journal string is being entered by the user
L = Log(journal) # making an object of Log class from data.py file
j = L.get_message() # getting the journal with timestamp
reader.seek(0, 0)
reader.write(username + "$" + j + "\n" +
content) # writing the journal to file
print("New Log Successfully Written")
def run(self):
session = Session()
last_id = Log.get_last_id(session, simulate_time=self.simulate_time)
if last_id is None:
last_id = 0
last_id -= BUFFER_LEN
time_delta = None
if self.simulate_time:
time_delta = monotonic_time() - self.simulate_time
while not self.closing:
query = session.query(Log).filter(Log.id > last_id).filter(Log.interesting == True).order_by(Log.id)
if time_delta is not None:
log2 = session.query(Log).filter(Log.interesting == True).filter(Log.timestamp <= monotonic_time() - time_delta).order_by(Log.timestamp.desc()).first()
query = query.filter(Log.id <= log2.id)
new_data = query.all()
if len(new_data) > 0:
last_id = new_data[-1].id
#print >> sys.stderr, "Read %d records" % (len(new_data))
self.buffer += new_data
self.buffer = self.buffer[-BUFFER_LEN:]
session.expunge_all()
session.rollback()
time.sleep(SLEEP_TIME)
session.rollback()
session.close()
if __name__ == '__main__':
session = Session()
retime = 'retime' in sys.argv[1:]
last_commit = time.time()
last_interesting = 0.0
try:
while True:
line = sys.stdin.readline()
if line == '':
break
data = [my_float(x) for x in line.strip().split(",")]
if retime:
data[0] = time.time()
timestamp = float(data[0])
log = Log.from_tuple(data)
if timestamp - last_interesting >= 1.0 / INTERESTING_FPS:
log.interesting = True
last_interesting = timestamp
session.add(log)
session.flush()
now = time.time()
if now - last_commit >= COMMIT_FREQ:
last_commit = now
# After the implicit flush, all the objects in the
# session are weakly references by the session, so
# they're immediately pruned; i.e., this shouldn't
# have memory leaks
session.commit()
except KeyboardInterrupt:
