-
Notifications
You must be signed in to change notification settings - Fork 8
/
GrafanaHTTP.ts
111 lines (98 loc) · 3.61 KB
/
GrafanaHTTP.ts
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
import {AbstractHTTP} from './AbstractHTTP';
import {OnmsError} from '../api/OnmsError';
import {OnmsHTTPOptions} from '../api/OnmsHTTPOptions';
import {OnmsResult} from '../api/OnmsResult';
import {OnmsServer} from '../api/OnmsServer';
import {log, catRest} from '../api/Log';
import {Category} from 'typescript-logging';
/** @hidden */
const catGrafana = new Category('grafana', catRest);
/**
* Implementation of the OnmsHTTP interface for Grafana
* @module GrafanaHTTP
* @implements IOnmsHTTP
*/ /** */
export class GrafanaHTTP extends AbstractHTTP {
/** the Grafana backend object we'll use for making ReST calls */
private backendSrv: any;
/**
* Construct a new GrafanaHTTP implementation
* @constructor
* @param backendSrv the Grafana BackendSrv object to use for requests
* @param server the OpenNMS server to make requests to
* @param timeout
*/
constructor(backendSrv: any, server?: OnmsServer) {
super(server, undefined);
this.backendSrv = backendSrv;
}
/** make an HTTP GET call using the Grafana backendSrv */
public get(url: string, options?: OnmsHTTPOptions) {
const realUrl = this.getServer(options).resolveURL(url);
log.debug('GET ' + realUrl);
const query = this.getConfig(options);
query.method = 'GET';
query.url = realUrl;
return this.backendSrv.datasourceRequest(query).then((response) => {
let type = 'application/xml';
if (query && query.headers && query.headers.accept) {
type = query.headers.accept;
}
if (response.headers && response.headers['content-type']) {
type = response.headers['content-type'];
}
return OnmsResult.ok(response.data, undefined, response.status, type);
});
}
/** make an HTTP PUT call using the Grafana backendSrv */
public put(url: string, options?: OnmsHTTPOptions) {
const realUrl = this.getServer(options).resolveURL(url);
log.debug('PUT ' + realUrl);
const query = this.getConfig(options);
query.method = 'PUT';
query.url = realUrl;
query.data = Object.apply({}, query.parameters);
return this.backendSrv.datasourceRequest(query).then((response) => {
let type = 'application/xml';
if (query && query.headers && query.headers.accept) {
type = query.headers.accept;
}
if (response.headers && response.headers['content-type']) {
type = response.headers['content-type'];
}
return OnmsResult.ok(response.data, undefined, response.status, type);
});
}
/** internal method to turn {@link OnmsHTTPOptions} into a Grafana BackendSrv request object. */
private getConfig(options?: OnmsHTTPOptions): any {
const allOptions = this.getOptions(options);
const ret = {} as any;
if (allOptions.headers) {
ret.headers = allOptions.headers;
}
ret.headers = ret.headers || {};
if (!ret.headers.accept) {
ret.headers.accept = 'application/json';
}
if (!ret.headers['content-type']) {
ret.headers['content-type'] = 'application/json;charset=utf-8';
}
const type = ret.headers.accept;
if (type === 'application/json') {
ret.responseType = 'json';
ret.transformResponse = this.transformJSON;
} else if (type === 'text/plain') {
ret.responseType = 'text';
delete ret.transformResponse;
} else if (type === 'application/xml') {
ret.responseType = 'text';
ret.transformResponse = this.transformXML;
} else {
throw new OnmsError('Unhandled "Accept" header: ' + type);
}
if (allOptions.parameters && Object.keys(allOptions.parameters).length > 0) {
ret.params = options.parameters;
}
return ret;
}
}