def get_version(self):
### if we already know the answer:
if self.probed:
return self._version
### otherwise let's look in the cache file
logger.debug("searching in version cache %s" % self.url())
cached_version = VersionCache().get(self.url())
if cached_version is not None:
logger.info("Retrieved version info from cache %s" % self.url())
return cached_version
### otherwise let's do the hard work
# dummy to meet Sfi's expectations for its 'options' field
class DummyOptions:
pass
options = DummyOptions()
options.verbose = self.verbose
options.timeout = 10
try:
client = Sfi(options)
client.read_config()
client.bootstrap()
key_file = client.private_key
cert_file = client.my_gid
logger.debug("using key %s & cert %s" % (key_file, cert_file))
url = self.url()
logger.info('issuing GetVersion at %s' % url)
# setting timeout here seems to get the call to fail - even though the response time is fast
#server=SfaServerProxy(url, key_file, cert_file, verbose=self.verbose, timeout=options.timeout)
server = SfaServerProxy(url,
key_file,
cert_file,
verbose=self.verbose)
self._version = ReturnValue.get_value(server.GetVersion())
except:
logger.log_exc("failed to get version")
self._version = {}
# so that next run from this process will find out
self.probed = True
# store in version cache so next processes will remember for an hour
cache = VersionCache()
cache.set(self.url(), self._version)
cache.save()
logger.debug("Saved version for url=%s in version cache" % self.url())
# that's our result
return self._version
#! /usr/bin/env python
# sfi -- slice-based facility interface
import sys
from sfa.client.sfi import Sfi
if __name__ == "__main__":
sys.exit(Sfi().main())