diff options
Diffstat (limited to 'vendor/google.golang.org/appengine/errors.go')
-rw-r--r-- | vendor/google.golang.org/appengine/errors.go | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/vendor/google.golang.org/appengine/errors.go b/vendor/google.golang.org/appengine/errors.go new file mode 100644 index 0000000..16d0772 --- /dev/null +++ b/vendor/google.golang.org/appengine/errors.go | |||
@@ -0,0 +1,46 @@ | |||
1 | // Copyright 2011 Google Inc. All rights reserved. | ||
2 | // Use of this source code is governed by the Apache 2.0 | ||
3 | // license that can be found in the LICENSE file. | ||
4 | |||
5 | // This file provides error functions for common API failure modes. | ||
6 | |||
7 | package appengine | ||
8 | |||
9 | import ( | ||
10 | "fmt" | ||
11 | |||
12 | "google.golang.org/appengine/internal" | ||
13 | ) | ||
14 | |||
15 | // IsOverQuota reports whether err represents an API call failure | ||
16 | // due to insufficient available quota. | ||
17 | func IsOverQuota(err error) bool { | ||
18 | callErr, ok := err.(*internal.CallError) | ||
19 | return ok && callErr.Code == 4 | ||
20 | } | ||
21 | |||
22 | // MultiError is returned by batch operations when there are errors with | ||
23 | // particular elements. Errors will be in a one-to-one correspondence with | ||
24 | // the input elements; successful elements will have a nil entry. | ||
25 | type MultiError []error | ||
26 | |||
27 | func (m MultiError) Error() string { | ||
28 | s, n := "", 0 | ||
29 | for _, e := range m { | ||
30 | if e != nil { | ||
31 | if n == 0 { | ||
32 | s = e.Error() | ||
33 | } | ||
34 | n++ | ||
35 | } | ||
36 | } | ||
37 | switch n { | ||
38 | case 0: | ||
39 | return "(0 errors)" | ||
40 | case 1: | ||
41 | return s | ||
42 | case 2: | ||
43 | return s + " (and 1 other error)" | ||
44 | } | ||
45 | return fmt.Sprintf("%s (and %d other errors)", s, n-1) | ||
46 | } | ||