misc/spacetime/diskwatcher.py

   1
   2 from axiom.item import Item
   3 from axiom.attributes import text, integer, timestamp
   4
   5
   6 class Sample(Item):
   7     # we didn't originally set typeName, so it was generated from the
   8     # fully-qualified classname ("diskwatcher.Sample"), then Axiom
   9     # automatically lowercases and un-dot-ifies it to get
  10     # "diskwatcher_sample". Now we explicitly provide a name.
  11     typeName = "diskwatcher_sample"
  12
  13     # version 2 added the 'total' field
  14     schemaVersion = 2
  15
  16     url = text(indexed=True)
  17     when = timestamp(indexed=True)
  18     total = integer()
  19     used = integer()
  20     avail = integer()
  21
  22 def upgradeSample1to2(old):
  23     total = 0
  24     return old.upgradeVersion("diskwatcher_sample", 1, 2,
  25                               url=old.url,
  26                               when=old.when,
  27                               total=0,
  28                               used=old.used,
  29                               avail=old.avail)
  30
  31 from axiom.upgrade import registerUpgrader
  32 registerUpgrader(upgradeSample1to2, "diskwatcher_sample", 1, 2)