/historical/hive_indra_null.py

 1#
 2# $LicenseInfo:firstyear=2010&license=mit$
 3# 
 4# Copyright (c) 2010, Linden Research, Inc.
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25
26from optparse import OptionParser
27
28import filtertools
29import hive
30import hive_mysql
31import sqlfilters
32
33class IndraNullWorker(hive_mysql.MySQLWorker):
34    def __init__(self, options, arguments):
35        hive_mysql.MySQLWorker.__init__(self, options, arguments)
36        self._first_filters = []
37        self._all_filters = []
38        self._at_start = True
39        
40        if options.f_schema:
41            self._first_filters.append(
42                sqlfilters.PrependSchema(options.mysql_db))
43    
44    def start(self):
45        #hive_mysql.MySQLWorker.start(self)
46        self._at_start = True
47    
48    def event(self, data):
49        hive_mysql.MySQLWorker.event(self, data)
50        self._at_start = False
51
52    def end(self):
53        return "200 OK"
54
55    def execute_sql(self, sql):
56        statements = [sql]
57        if self._at_start:
58            statements = filtertools.filterthru(statements, self._first_filters)
59        statements = filtertools.filterthru(statements, self._all_filters)
60        for s in statements:
61            #hive_mysql.MySQLWorker.execute_sql(self, s)
62            pass
63
64class IndraNullCentral(hive_mysql.MySQLCentral):
65    def __init__(self, options, arguments):
66        hive_mysql.MySQLCentral.__init__(self, options, arguments)
67
68    def start(self, seq):
69        pass
70
71    def event(self, seq, data):
72        pass
73
74    def end(self, seq):
75        pass
76
77class IndraNullHive(hive_mysql.MySQLHive):
78    def __init__(self):
79        hive_mysql.MySQLHive.__init__(self, worker_cls=IndraNullWorker) #, central_cls=IndraNullCentral)
80        #hive_mysql.MySQLHive.__init__(self, worker_cls=IndraNullWorker, central_cls=IndraNullCentral)
81    
82    def add_options(self, parser):
83        hive_mysql.MySQLHive.add_options(self, parser)
84        parser.add_option('--f-schema',
85                            action='store_true', default=False,
86                            help='infer schema for statements (default: off)')
87
88if __name__ == '__main__':
89    IndraNullHive().main()