7d4b788381
The `ErrAlreadyExists` error is used for 304 statuses, which is not an error-condition, so should probably not be defined as part of the errdefs package. This patch removes the `ErrAlreadyExists` interface, and related helpers, as it was currently not used. Note that a 304 status can fulfil certain use-cases, but (refering to https://www.codetinkerer.com/2015/12/04/choosing-an-http-status-code.html) could probably be handled by a 200 OK, unless we want to perform caching in the client. If we do want to use 304 statuses, perhaps we need a separate class of "errors" for this (?). Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
package errdefs // import "github.com/docker/docker/errdefs"
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// ErrNotFound signals that the requested object doesn't exist
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type ErrNotFound interface {
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NotFound()
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}
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// ErrInvalidParameter signals that the user input is invalid
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type ErrInvalidParameter interface {
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InvalidParameter()
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}
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// ErrConflict signals that some internal state conflicts with the requested action and can't be performed.
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// A change in state should be able to clear this error.
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type ErrConflict interface {
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Conflict()
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}
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// ErrUnauthorized is used to signify that the user is not authorized to perform a specific action
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type ErrUnauthorized interface {
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Unauthorized()
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}
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// ErrUnavailable signals that the requested action/subsystem is not available.
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type ErrUnavailable interface {
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Unavailable()
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}
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// ErrForbidden signals that the requested action cannot be performed under any circumstances.
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// When a ErrForbidden is returned, the caller should never retry the action.
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type ErrForbidden interface {
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Forbidden()
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}
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// ErrSystem signals that some internal error occurred.
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// An example of this would be a failed mount request.
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type ErrSystem interface {
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System()
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}
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// ErrNotModified signals that an action can't be performed because it's already in the desired state
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type ErrNotModified interface {
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NotModified()
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}
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// ErrNotImplemented signals that the requested action/feature is not implemented on the system as configured.
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type ErrNotImplemented interface {
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NotImplemented()
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}
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// ErrUnknown signals that the kind of error that occurred is not known.
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type ErrUnknown interface {
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Unknown()
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}
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// ErrCancelled signals that the action was cancelled.
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type ErrCancelled interface {
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Cancelled()
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}
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// ErrDeadline signals that the deadline was reached before the action completed.
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type ErrDeadline interface {
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DeadlineExceeded()
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}
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// ErrDataLoss indicates that data was lost or there is data corruption.
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type ErrDataLoss interface {
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DataLoss()
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}
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