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Add a generic error type to capture non-typed errors

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Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
This commit is contained in:
Richard Scothern
2015-11-02 13:23:53 -08:00
parent 7840a5bc8f
commit e79324edd8
10 changed files with 44 additions and 29 deletions
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38
docs/storage/driver/base/base.go
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@@ -52,25 +52,29 @@ type Base struct {
// Format errors received from the storage driver
func (base *Base) setDriverName(e error) error {
if e != nil {
if actualErr, ok := e.(storagedriver.ErrUnsupportedMethod); ok {
actualErr.DriverName = base.StorageDriver.Name()
return actualErr
}
if actualErr, ok := e.(storagedriver.PathNotFoundError); ok {
actualErr.DriverName = base.StorageDriver.Name()
return actualErr
}
if actualErr, ok := e.(storagedriver.InvalidPathError); ok {
actualErr.DriverName = base.StorageDriver.Name()
return actualErr
}
if actualErr, ok := e.(storagedriver.InvalidOffsetError); ok {
actualErr.DriverName = base.StorageDriver.Name()
return actualErr
switch actual := e.(type) {
case nil:
return nil
case storagedriver.ErrUnsupportedMethod:
actual.DriverName = base.StorageDriver.Name()
return actual
case storagedriver.PathNotFoundError:
actual.DriverName = base.StorageDriver.Name()
return actual
case storagedriver.InvalidPathError:
actual.DriverName = base.StorageDriver.Name()
return actual
case storagedriver.InvalidOffsetError:
actual.DriverName = base.StorageDriver.Name()
return actual
default:
storageError := storagedriver.Error{
DriverName: base.StorageDriver.Name(),
Enclosed: e,
}
return storageError
}
return e
}
// GetContent wraps GetContent of underlying storage driver.