func (m *model) validateStorage(allMachineIDs, allApplications, allUnits set.Strings) error {
appsAndUnits := allApplications.Union(allUnits)
allStorage := set.NewStrings()
for i, storage := range m.Storages_.Storages_ {
if err := storage.Validate(); err != nil {
return errors.Annotatef(err, "storage[%d]", i)
}
allStorage.Add(storage.Tag().Id())
owner, err := storage.Owner()
if err != nil {
return errors.Wrap(err, errors.NotValidf("storage[%d] owner (%s)", i, owner))
}
ownerID := owner.Id()
if !appsAndUnits.Contains(ownerID) {
return errors.NotValidf("storage[%d] owner (%s)", i, ownerID)
}
for _, unit := range storage.Attachments() {
if !allUnits.Contains(unit.Id()) {
return errors.NotValidf("storage[%d] attachment referencing unknown unit %q", i, unit)
}
}
}
allVolumes := set.NewStrings()
for i, volume := range m.Volumes_.Volumes_ {
if err := volume.Validate(); err != nil {
return errors.Annotatef(err, "volume[%d]", i)
}
allVolumes.Add(volume.Tag().Id())
if storeID := volume.Storage().Id(); storeID != "" && !allStorage.Contains(storeID) {
return errors.NotValidf("volume[%d] referencing unknown storage %q", i, storeID)
}
for j, attachment := range volume.Attachments() {
if machineID := attachment.Machine().Id(); !allMachineIDs.Contains(machineID) {
return errors.NotValidf("volume[%d].attachment[%d] referencing unknown machine %q", i, j, machineID)
}
}
}
for i, filesystem := range m.Filesystems_.Filesystems_ {
if err := filesystem.Validate(); err != nil {
return errors.Annotatef(err, "filesystem[%d]", i)
}
if storeID := filesystem.Storage().Id(); storeID != "" && !allStorage.Contains(storeID) {
return errors.NotValidf("filesystem[%d] referencing unknown storage %q", i, storeID)
}
if volID := filesystem.Volume().Id(); volID != "" && !allVolumes.Contains(volID) {
return errors.NotValidf("filesystem[%d] referencing unknown volume %q", i, volID)
}
for j, attachment := range filesystem.Attachments() {
if machineID := attachment.Machine().Id(); !allMachineIDs.Contains(machineID) {
return errors.NotValidf("filesystem[%d].attachment[%d] referencing unknown machine %q", i, j, machineID)
}
}
}
return nil
}
func (stringSetSuite) TestUninitialized(c *gc.C) {
var uninitialized set.Strings
c.Assert(uninitialized.Size(), gc.Equals, 0)
c.Assert(uninitialized.IsEmpty(), gc.Equals, true)
// You can get values and sorted values from an unitialized set.
AssertValues(c, uninitialized)
// All contains checks are false
c.Assert(uninitialized.Contains("foo"), gc.Equals, false)
// Remove works on an uninitialized Strings
uninitialized.Remove("foo")
var other set.Strings
// Union returns a new set that is empty but initialized.
c.Assert(uninitialized.Union(other), gc.DeepEquals, set.NewStrings())
c.Assert(uninitialized.Intersection(other), gc.DeepEquals, set.NewStrings())
c.Assert(uninitialized.Difference(other), gc.DeepEquals, set.NewStrings())
other = set.NewStrings("foo", "bar")
c.Assert(uninitialized.Union(other), gc.DeepEquals, other)
c.Assert(uninitialized.Intersection(other), gc.DeepEquals, set.NewStrings())
c.Assert(uninitialized.Difference(other), gc.DeepEquals, set.NewStrings())
c.Assert(other.Union(uninitialized), gc.DeepEquals, other)
c.Assert(other.Intersection(uninitialized), gc.DeepEquals, set.NewStrings())
c.Assert(other.Difference(uninitialized), gc.DeepEquals, other)
// Once something is added, the set becomes initialized.
uninitialized.Add("foo")
AssertValues(c, uninitialized, "foo")
}
// JaccardSets measure Jaccard distance of two sets
func JaccardSets(a, b set.Strings) float64 {
return float64(a.Intersection(b).Size()) / float64(a.Union(b).Size())
}