#! /usr/bin/env python
"""Make sure a ZEO server is running.
Usage: zeoup.py [options]
The test will connect to a ZEO server, load the root object, and
attempt to update the zeoup counter in the root. It will report
success if it updates to counter or if it gets a ConflictError. A
ConflictError is considered a success, because the client was able to
start a transaction.
Options:
-p port -- port to connect to
-h host -- host to connect to (default is current host)
-U path -- Unix-domain socket to connect to
--nowrite -- Do not update the zeoup counter.
You must specify either -p and -h or -U.
"""
import getopt
import socket
import sys
import ZODB
from ZODB.POSException import ConflictError
from ZEO.ClientStorage import ClientStorage
def check_server(addr, storage, write):
cs = ClientStorage(addr, storage=storage, debug=1,
wait_for_server_on_startup=0)
# _startup() is an artifact of the way ZEO 1.0 works. The
# ClientStorage doesn't get fully initialized until registerDB()
# is called. The only thing we care about, though, is that
# registerDB() calls _startup().
# XXX Is connecting a DB with wait_for_server_on_startup=0 a
# sufficient test for upness?
db = ZODB.DB(cs)
cn = db.open()
root = cn.root()
if write:
try:
root['zeoup'] = root.get('zeoup', 0)+ 1
get_transaction().commit()
except ConflictError:
pass
cn.close()
db.close()
def usage(exit=1):
print __doc__
print " ".join(sys.argv)
sys.exit(exit)
def main():
host = None
port = None
unix = None
write = 1
storage = '1'
try:
opts, args = getopt.getopt(sys.argv[1:], 'p:h:U:S:',
['nowrite'])
for o, a in opts:
if o == '-p':
port = int(a)
elif o == '-h':
host = a
elif o == '-U':
unix = a
elif o == '-S':
storage = a
elif o == '--nowrite':
write = 0
except Exception, err:
print err
usage()
if unix is not None:
addr = unix
else:
if host is None:
host = socket.gethostname()
if port is None:
usage()
addr = host, port
check_server(addr, storage, write)
if __name__ == "__main__":
try:
main()
except Exception, err:
print err
sys.exit(1)
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