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ebcb7d6b40
Use strongly typed errors to set HTTP status codes. Error interfaces are defined in the api/errors package and errors returned from controllers are checked against these interfaces. Errors can be wraeped in a pkg/errors.Causer, as long as somewhere in the line of causes one of the interfaces is implemented. The special error interfaces take precedence over Causer, meaning if both Causer and one of the new error interfaces are implemented, the Causer is not traversed. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
94 lines
1.7 KiB
Go
94 lines
1.7 KiB
Go
package plugin
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import "fmt"
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type errNotFound string
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func (name errNotFound) Error() string {
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return fmt.Sprintf("plugin %q not found", string(name))
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}
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func (errNotFound) NotFound() {}
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type errAmbiguous string
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func (name errAmbiguous) Error() string {
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return fmt.Sprintf("multiple plugins found for %q", string(name))
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}
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func (name errAmbiguous) InvalidParameter() {}
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type errDisabled string
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func (name errDisabled) Error() string {
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return fmt.Sprintf("plugin %s found but disabled", string(name))
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}
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func (name errDisabled) Conflict() {}
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type validationError struct {
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cause error
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}
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func (e validationError) Error() string {
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return e.cause.Error()
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}
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func (validationError) Conflict() {}
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func (e validationError) Cause() error {
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return e.cause
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}
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type systemError struct {
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cause error
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}
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func (e systemError) Error() string {
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return e.cause.Error()
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}
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func (systemError) SystemError() {}
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func (e systemError) Cause() error {
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return e.cause
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}
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type invalidFilter struct {
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filter string
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value []string
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}
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func (e invalidFilter) Error() string {
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msg := "Invalid filter '" + e.filter
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if len(e.value) > 0 {
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msg += fmt.Sprintf("=%s", e.value)
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}
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return msg + "'"
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}
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func (invalidFilter) InvalidParameter() {}
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type inUseError string
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func (e inUseError) Error() string {
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return "plugin " + string(e) + " is in use"
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}
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func (inUseError) Conflict() {}
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type enabledError string
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func (e enabledError) Error() string {
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return "plugin " + string(e) + " is enabled"
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}
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func (enabledError) Conflict() {}
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type alreadyExistsError string
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func (e alreadyExistsError) Error() string {
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return "plugin " + string(e) + " already exists"
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}
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func (alreadyExistsError) Conflict() {}
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