74f76c75d5
This refactors a bit of the http handler code. Moves error handling for handler functions to a generic handler. This also has a side-effect of being able to propagate errors from the provider to send the correct status code, provided the error type matches a pre-defined interface.
129 lines
3.1 KiB
Go
129 lines
3.1 KiB
Go
package strongerrors
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type causer interface {
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Cause() error
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}
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func getImplementer(err error) error {
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switch e := err.(type) {
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case
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ErrNotFound,
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ErrInvalidArgument,
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ErrConflict,
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ErrUnauthorized,
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ErrUnauthenticated,
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ErrUnavailable,
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ErrForbidden,
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ErrSystem,
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ErrNotModified,
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ErrAlreadyExists,
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ErrNotImplemented,
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ErrCancelled,
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ErrDeadline,
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ErrDataLoss,
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ErrExhausted,
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ErrUnknown:
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return err
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case causer:
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return getImplementer(e.Cause())
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default:
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return err
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}
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}
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// IsNotFound returns if the passed in error is an ErrNotFound
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func IsNotFound(err error) bool {
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_, ok := getImplementer(err).(ErrNotFound)
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return ok
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}
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// IsInvalidArgument returns if the passed in error is an ErrInvalidParameter
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func IsInvalidArgument(err error) bool {
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_, ok := getImplementer(err).(ErrInvalidArgument)
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return ok
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}
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// IsConflict returns if the passed in error is an ErrConflict
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func IsConflict(err error) bool {
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_, ok := getImplementer(err).(ErrConflict)
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return ok
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}
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// IsUnauthorized returns if the the passed in error is an ErrUnauthorized
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func IsUnauthorized(err error) bool {
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_, ok := getImplementer(err).(ErrUnauthorized)
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return ok
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}
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// IsUnauthenticated returns if the the passed in error is an ErrUnauthenticated
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func IsUnauthenticated(err error) bool {
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_, ok := getImplementer(err).(ErrUnauthenticated)
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return ok
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}
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// IsUnavailable returns if the passed in error is an ErrUnavailable
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func IsUnavailable(err error) bool {
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_, ok := getImplementer(err).(ErrUnavailable)
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return ok
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}
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// IsForbidden returns if the passed in error is an ErrForbidden
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func IsForbidden(err error) bool {
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_, ok := getImplementer(err).(ErrForbidden)
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return ok
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}
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// IsSystem returns if the passed in error is an ErrSystem
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func IsSystem(err error) bool {
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_, ok := getImplementer(err).(ErrSystem)
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return ok
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}
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// IsNotModified returns if the passed in error is a NotModified error
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func IsNotModified(err error) bool {
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_, ok := getImplementer(err).(ErrNotModified)
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return ok
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}
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// IsAlreadyExists returns if the passed in error is a AlreadyExists error
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func IsAlreadyExists(err error) bool {
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_, ok := getImplementer(err).(ErrAlreadyExists)
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return ok
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}
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// IsNotImplemented returns if the passed in error is an ErrNotImplemented
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func IsNotImplemented(err error) bool {
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_, ok := getImplementer(err).(ErrNotImplemented)
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return ok
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}
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// IsUnknown returns if the passed in error is an ErrUnknown
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func IsUnknown(err error) bool {
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_, ok := getImplementer(err).(ErrUnknown)
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return ok
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}
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// IsCancelled returns if the passed in error is an ErrCancelled
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func IsCancelled(err error) bool {
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_, ok := getImplementer(err).(ErrCancelled)
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return ok
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}
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// IsDeadline returns if the passed in error is an ErrDeadline
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func IsDeadline(err error) bool {
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_, ok := getImplementer(err).(ErrDeadline)
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return ok
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}
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// IsExhausted returns if the passed in error is an ErrDeadline
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func IsExhausted(err error) bool {
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_, ok := getImplementer(err).(ErrExhausted)
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return ok
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}
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// IsDataLoss returns if the passed in error is an ErrDataLoss
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func IsDataLoss(err error) bool {
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_, ok := getImplementer(err).(ErrDataLoss)
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return ok
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}
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