1/*
2Copyright 2014 The Kubernetes Authors.
3
4Licensed under the Apache License, Version 2.0 (the "License");
5you may not use this file except in compliance with the License.
6You may obtain a copy of the License at
7
8    http://www.apache.org/licenses/LICENSE-2.0
9
10Unless required by applicable law or agreed to in writing, software
11distributed under the License is distributed on an "AS IS" BASIS,
12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13See the License for the specific language governing permissions and
14limitations under the License.
15*/
16
17package meta
18
19import (
20	"fmt"
21
22	"k8s.io/apimachinery/pkg/runtime/schema"
23)
24
25// AmbiguousResourceError is returned if the RESTMapper finds multiple matches for a resource
26type AmbiguousResourceError struct {
27	PartialResource schema.GroupVersionResource
28
29	MatchingResources []schema.GroupVersionResource
30	MatchingKinds     []schema.GroupVersionKind
31}
32
33func (e *AmbiguousResourceError) Error() string {
34	switch {
35	case len(e.MatchingKinds) > 0 && len(e.MatchingResources) > 0:
36		return fmt.Sprintf("%v matches multiple resources %v and kinds %v", e.PartialResource, e.MatchingResources, e.MatchingKinds)
37	case len(e.MatchingKinds) > 0:
38		return fmt.Sprintf("%v matches multiple kinds %v", e.PartialResource, e.MatchingKinds)
39	case len(e.MatchingResources) > 0:
40		return fmt.Sprintf("%v matches multiple resources %v", e.PartialResource, e.MatchingResources)
41	}
42	return fmt.Sprintf("%v matches multiple resources or kinds", e.PartialResource)
43}
44
45// AmbiguousKindError is returned if the RESTMapper finds multiple matches for a kind
46type AmbiguousKindError struct {
47	PartialKind schema.GroupVersionKind
48
49	MatchingResources []schema.GroupVersionResource
50	MatchingKinds     []schema.GroupVersionKind
51}
52
53func (e *AmbiguousKindError) Error() string {
54	switch {
55	case len(e.MatchingKinds) > 0 && len(e.MatchingResources) > 0:
56		return fmt.Sprintf("%v matches multiple resources %v and kinds %v", e.PartialKind, e.MatchingResources, e.MatchingKinds)
57	case len(e.MatchingKinds) > 0:
58		return fmt.Sprintf("%v matches multiple kinds %v", e.PartialKind, e.MatchingKinds)
59	case len(e.MatchingResources) > 0:
60		return fmt.Sprintf("%v matches multiple resources %v", e.PartialKind, e.MatchingResources)
61	}
62	return fmt.Sprintf("%v matches multiple resources or kinds", e.PartialKind)
63}
64
65func IsAmbiguousError(err error) bool {
66	if err == nil {
67		return false
68	}
69	switch err.(type) {
70	case *AmbiguousResourceError, *AmbiguousKindError:
71		return true
72	default:
73		return false
74	}
75}
76
77// NoResourceMatchError is returned if the RESTMapper can't find any match for a resource
78type NoResourceMatchError struct {
79	PartialResource schema.GroupVersionResource
80}
81
82func (e *NoResourceMatchError) Error() string {
83	return fmt.Sprintf("no matches for %v", e.PartialResource)
84}
85
86// NoKindMatchError is returned if the RESTMapper can't find any match for a kind
87type NoKindMatchError struct {
88	PartialKind schema.GroupVersionKind
89}
90
91func (e *NoKindMatchError) Error() string {
92	return fmt.Sprintf("no matches for %v", e.PartialKind)
93}
94
95func IsNoMatchError(err error) bool {
96	if err == nil {
97		return false
98	}
99	switch err.(type) {
100	case *NoResourceMatchError, *NoKindMatchError:
101		return true
102	default:
103		return false
104	}
105}
106