示例#1
0
func (s *networkSuite) TestNetworkNames(c *gc.C) {
	for i, test := range networkNameTests {
		c.Logf("test %d: %q", i, test.pattern)
		c.Check(names.IsNetwork(test.pattern), gc.Equals, test.valid)
		if test.valid {
			expectTag := fmt.Sprintf("%s-%s", names.NetworkTagKind, test.pattern)
			c.Check(names.NetworkTag(test.pattern), gc.Equals, expectTag)
		} else {
			expectErr := fmt.Sprintf("%q is not a valid network name", test.pattern)
			testNetworkTag := func() { names.NetworkTag(test.pattern) }
			c.Check(testNetworkTag, gc.PanicMatches, regexp.QuoteMeta(expectErr))
		}
	}
}
示例#2
0
文件: state.go 项目: jkary/core
// AddNetwork creates a new network with the given params. If a
// network with the same name or provider id already exists in state,
// an error satisfying errors.IsAlreadyExists is returned.
func (st *State) AddNetwork(args NetworkInfo) (n *Network, err error) {
	defer errors.Contextf(&err, "cannot add network %q", args.Name)
	if args.CIDR != "" {
		_, _, err := net.ParseCIDR(args.CIDR)
		if err != nil {
			return nil, err
		}
	}
	if args.Name == "" {
		return nil, fmt.Errorf("name must be not empty")
	}
	if !names.IsNetwork(args.Name) {
		return nil, fmt.Errorf("invalid name")
	}
	if args.ProviderId == "" {
		return nil, fmt.Errorf("provider id must be not empty")
	}
	if args.VLANTag < 0 || args.VLANTag > 4094 {
		return nil, fmt.Errorf("invalid VLAN tag %d: must be between 0 and 4094", args.VLANTag)
	}
	doc := newNetworkDoc(args)
	ops := []txn.Op{{
		C:      st.networks.Name,
		Id:     args.Name,
		Assert: txn.DocMissing,
		Insert: doc,
	}}
	err = st.runTransaction(ops)
	switch err {
	case txn.ErrAborted:
		if _, err = st.Network(args.Name); err == nil {
			return nil, errors.AlreadyExistsf("network %q", args.Name)
		} else if err != nil {
			return nil, err
		}
	case nil:
		// We have a unique key restriction on the ProviderId field,
		// which will cause the insert to fail if there is another
		// record with the same provider id in the table. The txn
		// logic does not report insertion errors, so we check that
		// the record has actually been inserted correctly before
		// reporting success.
		if _, err = st.Network(args.Name); err != nil {
			return nil, errors.AlreadyExistsf("network with provider id %q", args.ProviderId)
		}
		return newNetwork(st, doc), nil
	}
	return nil, err
}