diff options
Diffstat (limited to 'nova/utils.py')
| -rw-r--r-- | nova/utils.py | 45 |
1 files changed, 36 insertions, 9 deletions
diff --git a/nova/utils.py b/nova/utils.py index 361fc9873..6d8324e5b 100644 --- a/nova/utils.py +++ b/nova/utils.py @@ -35,6 +35,7 @@ import struct import sys import time import types +import uuid from xml.sax import saxutils from eventlet import event @@ -142,24 +143,26 @@ def execute(*cmd, **kwargs): env = os.environ.copy() if addl_env: env.update(addl_env) + _PIPE = subprocess.PIPE # pylint: disable=E1101 obj = subprocess.Popen(cmd, - stdin=subprocess.PIPE, - stdout=subprocess.PIPE, - stderr=subprocess.PIPE, + stdin=_PIPE, + stdout=_PIPE, + stderr=_PIPE, env=env) result = None if process_input is not None: result = obj.communicate(process_input) else: result = obj.communicate() - obj.stdin.close() - if obj.returncode: - LOG.debug(_('Result was %s') % obj.returncode) + obj.stdin.close() # pylint: disable=E1101 + _returncode = obj.returncode # pylint: disable=E1101 + if _returncode: + LOG.debug(_('Result was %s') % _returncode) if type(check_exit_code) == types.IntType \ - and obj.returncode != check_exit_code: + and _returncode != check_exit_code: (stdout, stderr) = result raise exception.ProcessExecutionError( - exit_code=obj.returncode, + exit_code=_returncode, stdout=stdout, stderr=stderr, cmd=' '.join(cmd)) @@ -307,7 +310,7 @@ def get_my_linklocal(interface): def utcnow(): - """Overridable version of datetime.datetime.utcnow.""" + """Overridable version of utils.utcnow.""" if utcnow.override_time: return utcnow.override_time return datetime.datetime.utcnow() @@ -523,6 +526,16 @@ def loads(s): return json.loads(s) +try: + import anyjson +except ImportError: + pass +else: + anyjson._modules.append(("nova.utils", "dumps", TypeError, + "loads", ValueError)) + anyjson.force_implementation("nova.utils") + + _semaphores = {} @@ -724,3 +737,17 @@ def parse_server_string(server_str): except: LOG.debug(_('Invalid server_string: %s' % server_str)) return ('', '') + + +def gen_uuid(): + return uuid.uuid4() + + +def is_uuid_like(val): + """For our purposes, a UUID is a string in canoical form: + + aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa + """ + if not isinstance(val, basestring): + return False + return (len(val) == 36) and (val.count('-') == 4) |