def process_binlog(self):
stream = BinLogStreamReader(connection_settings=self.connectionSettings, server_id=self.serverId,
log_file=self.startFile, log_pos=self.startPos, only_schemas=self.only_schemas,
only_tables=self.only_tables, resume_stream=True)
cur = self.connection.cursor()
tmpFile = create_unique_file('%s.%s' % (self.connectionSettings['host'],self.connectionSettings['port'])) # to simplify code, we do not use file lock for tmpFile.
ftmp = open(tmpFile ,"w")
flagLastEvent = False
eStartPos, lastPos = stream.log_pos, stream.log_pos
try:
for binlogevent in stream:
if not self.stopnever:
if (stream.log_file == self.endFile and stream.log_pos == self.endPos) or (stream.log_file == self.eofFile and stream.log_pos == self.eofPos):
flagLastEvent = True
elif datetime.datetime.fromtimestamp(binlogevent.timestamp) < self.startTime:
if not (isinstance(binlogevent, RotateEvent) or isinstance(binlogevent, FormatDescriptionEvent)):
lastPos = binlogevent.packet.log_pos
continue
elif (stream.log_file not in self.binlogList) or (self.endPos and stream.log_file == self.endFile and stream.log_pos > self.endPos) or (stream.log_file == self.eofFile and stream.log_pos > self.eofPos) or (datetime.datetime.fromtimestamp(binlogevent.timestamp) >= self.stopTime):
break
# else:
# raise ValueError('unknown binlog file or position')
if isinstance(binlogevent, QueryEvent) and binlogevent.query == 'BEGIN':
eStartPos = lastPos
if isinstance(binlogevent, QueryEvent):
sql = concat_sql_from_binlogevent(cursor=cur, binlogevent=binlogevent, flashback=self.flashback, nopk=self.nopk)
if sql:
print sql
elif isinstance(binlogevent, WriteRowsEvent) or isinstance(binlogevent, UpdateRowsEvent) or isinstance(binlogevent, DeleteRowsEvent):
for row in binlogevent.rows:
sql = concat_sql_from_binlogevent(cursor=cur, binlogevent=binlogevent, row=row , flashback=self.flashback, nopk=self.nopk, eStartPos=eStartPos)
if self.flashback:
ftmp.write(sql + '\n')
else:
print sql
if not (isinstance(binlogevent, RotateEvent) or isinstance(binlogevent, FormatDescriptionEvent)):
lastPos = binlogevent.packet.log_pos
if flagLastEvent:
break
ftmp.close()
if self.flashback:
with open(tmpFile) as ftmp:
for line in reversed_lines(ftmp):
print line.rstrip()
finally:
os.remove(tmpFile)
cur.close()
stream.close()
return True
def process_binlog(self):
stream = BinLogFileReader(
self.filePath,
ctl_connection_settings=self.connectionSettings,
log_pos=self.startPos,
only_schemas=self.only_schemas,
only_tables=self.only_tables,
resume_stream=True)
cur = self.connection.cursor()
tmpFile = create_unique_file(
'%s.%s' %
(self.connectionSettings['host'], self.connectionSettings['port'])
) # to simplify code, we do not use file lock for tmpFile.
ftmp = open(tmpFile, "w")
flagLastEvent = False
eStartPos, lastPos = stream.log_pos, stream.log_pos
try:
for binlogevent in stream:
if not self.stopnever:
if datetime.datetime.fromtimestamp(
binlogevent.timestamp) < self.startTime:
if not (isinstance(binlogevent, RotateEvent)
or isinstance(binlogevent,
FormatDescriptionEvent)):
lastPos = binlogevent.packet.log_pos
continue
elif datetime.datetime.fromtimestamp(
binlogevent.timestamp) >= self.stopTime:
break
else:
pass
if isinstance(binlogevent,
QueryEvent) and binlogevent.query == 'BEGIN':
eStartPos = lastPos
if isinstance(binlogevent, QueryEvent):
sql = concat_sql_from_binlogevent(cursor=cur,
binlogevent=binlogevent,
flashback=self.flashback,
no_pk=self.nopk)
if sql:
print sql
print "\n"
elif isinstance(binlogevent, WriteRowsEvent) or isinstance(
binlogevent, UpdateRowsEvent) or isinstance(
binlogevent, DeleteRowsEvent):
for row in binlogevent.rows:
sql = concat_sql_from_binlogevent(
cursor=cur,
binlogevent=binlogevent,
row=row,
flashback=self.flashback,
no_pk=self.nopk,
eStartPos=eStartPos)
if self.flashback:
ftmp.write(sql + '\n')
else:
print sql
print "\n"
if not (isinstance(binlogevent, RotateEvent)
or isinstance(binlogevent, FormatDescriptionEvent)):
lastPos = binlogevent.packet.log_pos
if flagLastEvent:
break
ftmp.close()
if self.flashback:
self.print_rollback_sql(tmpFile)
finally:
os.remove(tmpFile)
cur.close()
stream.close()
return True