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supprot the thread id filter binlog #77

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supprot the thread id filter binlog #77

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12 changes: 8 additions & 4 deletions binlog2sql/binlog2sql.py
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@

class Binlog2sql(object):

def __init__(self, connection_settings, start_file=None, start_pos=None, end_file=None, end_pos=None,
def __init__(self, connection_settings, thread_id=0, start_file=None, start_pos=None, end_file=None, end_pos=None,
start_time=None, stop_time=None, only_schemas=None, only_tables=None, no_pk=False,
flashback=False, stop_never=False, back_interval=1.0, only_dml=True, sql_type=None):
"""
Expand All @@ -23,6 +23,7 @@ def __init__(self, connection_settings, start_file=None, start_pos=None, end_fil
raise ValueError('Lack of parameter: start_file')

self.conn_setting = connection_settings
self.thread_id = thread_id
self.start_file = start_file
self.start_pos = start_pos if start_pos else 4 # use binlog v4
self.end_file = end_file if end_file else start_file
Expand Down Expand Up @@ -98,13 +99,15 @@ def process_binlog(self):

if isinstance(binlog_event, QueryEvent) and not self.only_dml:
sql = concat_sql_from_binlog_event(cursor=cursor, binlog_event=binlog_event,
flashback=self.flashback, no_pk=self.no_pk)
flashback=self.flashback, no_pk=self.no_pk,
thread_id=self.thread_id)
if sql:
print(sql)
elif is_dml_event(binlog_event) and event_type(binlog_event) in self.sql_type:
for row in binlog_event.rows:
sql = concat_sql_from_binlog_event(cursor=cursor, binlog_event=binlog_event, no_pk=self.no_pk,
row=row, flashback=self.flashback, e_start_pos=e_start_pos)
row=row, flashback=self.flashback, e_start_pos=e_start_pos,
thread_id=self.thread_id)
if self.flashback:
f_tmp.write(sql + '\n')
else:
Expand Down Expand Up @@ -142,7 +145,8 @@ def __del__(self):
if __name__ == '__main__':
args = command_line_args(sys.argv[1:])
conn_setting = {'host': args.host, 'port': args.port, 'user': args.user, 'passwd': args.password, 'charset': 'utf8'}
binlog2sql = Binlog2sql(connection_settings=conn_setting, start_file=args.start_file, start_pos=args.start_pos,
binlog2sql = Binlog2sql(connection_settings=conn_setting, thread_id=args.thread_id,
start_file=args.start_file, start_pos=args.start_pos,
end_file=args.end_file, end_pos=args.end_pos, start_time=args.start_time,
stop_time=args.stop_time, only_schemas=args.databases, only_tables=args.tables,
no_pk=args.no_pk, flashback=args.flashback, stop_never=args.stop_never,
Expand Down
19 changes: 13 additions & 6 deletions binlog2sql/binlog2sql_util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@
UpdateRowsEvent,
DeleteRowsEvent,
)

BEGIN_QUERY_EVENT = None

if sys.version > '3':
PY3PLUS = True
Expand Down Expand Up @@ -65,6 +65,7 @@ def parse_args():
connect_setting.add_argument('-P', '--port', dest='port', type=int,
help='MySQL port to use', default=3306)
interval = parser.add_argument_group('interval filter')
interval.add_argument('--thread-id', dest='thread_id', type=int, help='binlog event thread_id', default=0)
interval.add_argument('--start-file', dest='start_file', type=str, help='Start binlog file to be parsed')
interval.add_argument('--start-position', '--start-pos', dest='start_pos', type=int,
help='Start position of the --start-file', default=4)
Expand Down Expand Up @@ -164,20 +165,26 @@ def event_type(event):
return t


def concat_sql_from_binlog_event(cursor, binlog_event, row=None, e_start_pos=None, flashback=False, no_pk=False):
def concat_sql_from_binlog_event(cursor, binlog_event, row=None, e_start_pos=None,
flashback=False, no_pk=False, thread_id=0):
if flashback and no_pk:
raise ValueError('only one of flashback or no_pk can be True')
if not (isinstance(binlog_event, WriteRowsEvent) or isinstance(binlog_event, UpdateRowsEvent)
or isinstance(binlog_event, DeleteRowsEvent) or isinstance(binlog_event, QueryEvent)):
raise ValueError('binlog_event must be WriteRowsEvent, UpdateRowsEvent, DeleteRowsEvent or QueryEvent')

sql = ''
global BEGIN_QUERY_EVENT
if isinstance(binlog_event, QueryEvent) and binlog_event.query == 'BEGIN':
BEGIN_QUERY_EVENT = binlog_event
if isinstance(binlog_event, WriteRowsEvent) or isinstance(binlog_event, UpdateRowsEvent) \
or isinstance(binlog_event, DeleteRowsEvent):
pattern = generate_sql_pattern(binlog_event, row=row, flashback=flashback, no_pk=no_pk)
sql = cursor.mogrify(pattern['template'], pattern['values'])
time = datetime.datetime.fromtimestamp(binlog_event.timestamp)
sql += ' #start %s end %s time %s' % (e_start_pos, binlog_event.packet.log_pos, time)
# Support filter by the thread_id
if (thread_id == 0) or (thread_id and BEGIN_QUERY_EVENT.slave_proxy_id == thread_id):
pattern = generate_sql_pattern(binlog_event, row=row, flashback=flashback, no_pk=no_pk)
sql = cursor.mogrify(pattern['template'], pattern['values'])
time = datetime.datetime.fromtimestamp(binlog_event.timestamp)
sql += ' #start %s end %s time %s' % (e_start_pos, binlog_event.packet.log_pos, time)
elif flashback is False and isinstance(binlog_event, QueryEvent) and binlog_event.query != 'BEGIN' \
and binlog_event.query != 'COMMIT':
if binlog_event.schema:
Expand Down