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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 000000000..16d0772e2 --- /dev/null +++ b/vendor/google.golang.org/appengine/errors.go @@ -0,0 +1,46 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// This file provides error functions for common API failure modes. + +package appengine + +import ( + "fmt" + + "google.golang.org/appengine/internal" +) + +// IsOverQuota reports whether err represents an API call failure +// due to insufficient available quota. +func IsOverQuota(err error) bool { + callErr, ok := err.(*internal.CallError) + return ok && callErr.Code == 4 +} + +// MultiError is returned by batch operations when there are errors with +// particular elements. Errors will be in a one-to-one correspondence with +// the input elements; successful elements will have a nil entry. +type MultiError []error + +func (m MultiError) Error() string { + s, n := "", 0 + for _, e := range m { + if e != nil { + if n == 0 { + s = e.Error() + } + n++ + } + } + switch n { + case 0: + return "(0 errors)" + case 1: + return s + case 2: + return s + " (and 1 other error)" + } + return fmt.Sprintf("%s (and %d other errors)", s, n-1) +} |