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  • Committer: Josh Kearney
  • Date: 2011-03-09 20:42:50 UTC
  • mfrom: (408.9.350 nova)
  • mto: (408.9.371 nova)
  • mto: This revision was merged to the branch mainline in revision 449.
  • Revision ID: josh@jk0.org-20110309204250-k522wtakilwk68zn
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nova/utils.py
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import base64
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import datetime
 
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import functools
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import inspect
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import json
 
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import lockfile
 
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import netaddr
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import os
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import random
 
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import re
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import socket
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import string
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import struct
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import time
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import types
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from xml.sax import saxutils
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import re
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import netaddr
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from eventlet import event
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from eventlet import greenthread
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from nova import exception
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from nova.exception import ProcessExecutionError
 
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from nova import flags
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from nova import log as logging
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LOG = logging.getLogger("nova.utils")
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TIME_FORMAT = "%Y-%m-%dT%H:%M:%SZ"
 
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FLAGS = flags.FLAGS
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def import_class(import_str):
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    return json.loads(s)
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def synchronized(name):
 
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    def wrap(f):
 
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        @functools.wraps(f)
 
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        def inner(*args, **kwargs):
 
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            lock = lockfile.FileLock(os.path.join(FLAGS.lock_path,
 
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                                                  'nova-%s.lock' % name))
 
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            with lock:
 
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                return f(*args, **kwargs)
 
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        return inner
 
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    return wrap
 
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def ensure_b64_encoding(val):
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    """Safety method to ensure that values expected to be base64-encoded
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    actually are. If they are, the value is returned unchanged. Otherwise,