1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
/*
* Copyright 2020 Intel Corporation, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions
* and
* limitations under the License.
*/
package api
import (
"encoding/json"
"io"
"net/http"
"github.com/gorilla/mux"
"github.com/onap/multicloud-k8s/src/dcm/pkg/module"
)
// keyValueHandler is used to store backend implementations objects
type keyValueHandler struct {
client module.KeyValueManager
}
// CreateHandler handles creation of the key value entry in the database
func (h keyValueHandler) createHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
var v module.KeyValue
err := json.NewDecoder(r.Body).Decode(&v)
switch {
case err == io.EOF:
http.Error(w, "Empty body", http.StatusBadRequest)
return
case err != nil:
http.Error(w, err.Error(), http.StatusUnprocessableEntity)
return
}
// Key Value Name is required.
if v.MetaData.KeyValueName == "" {
http.Error(w, "Missing name in POST request", http.StatusBadRequest)
return
}
ret, err := h.client.CreateKVPair(project, logicalCloud, v)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusCreated)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// getHandler handles GET operations over key-value pairs
// Returns a list of Key Values
func (h keyValueHandler) getAllHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
var ret interface{}
var err error
ret, err = h.client.GetAllKVPairs(project, logicalCloud)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// getHandler handle GET operations on a particular name
// Returns a Key Value
func (h keyValueHandler) getHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
name := vars["kv-pair-name"]
var ret interface{}
var err error
ret, err = h.client.GetKVPair(project, logicalCloud, name)
if err != nil {
if err.Error() == "KV Pair does not exist" {
http.Error(w, err.Error(), http.StatusNotFound)
return
}
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// UpdateHandler handles Update operations on a particular Key Value
func (h keyValueHandler) updateHandler(w http.ResponseWriter, r *http.Request) {
var v module.KeyValue
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
name := vars["kv-pair-name"]
err := json.NewDecoder(r.Body).Decode(&v)
switch {
case err == io.EOF:
http.Error(w, "Empty body", http.StatusBadRequest)
return
case err != nil:
http.Error(w, err.Error(), http.StatusUnprocessableEntity)
return
}
// Name is required.
if v.MetaData.KeyValueName == "" {
http.Error(w, "Missing name in PUT request", http.StatusBadRequest)
return
}
ret, err := h.client.UpdateKVPair(project, logicalCloud, name, v)
if err != nil {
if err.Error() == "KV Pair does not exist" {
http.Error(w, err.Error(), http.StatusNotFound)
return
}
http.Error(w, err.Error(),
http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(),
http.StatusInternalServerError)
return
}
}
//deleteHandler handles DELETE operations on a particular record
func (h keyValueHandler) deleteHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
project := vars["project-name"]
logicalCloud := vars["logical-cloud-name"]
name := vars["kv-pair-name"]
err := h.client.DeleteKVPair(project, logicalCloud, name)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
|
