107 lines
2.6 KiB
JavaScript
107 lines
2.6 KiB
JavaScript
|
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
|
||
|
|
// This file is part of Parity.
|
||
|
|
|
||
|
|
// Parity is free software: you can redistribute it and/or modify
|
||
|
|
// it under the terms of the GNU General Public License as published by
|
||
|
|
// the Free Software Foundation, either version 3 of the License, or
|
||
|
|
// (at your option) any later version.
|
||
|
|
|
||
|
|
// Parity is distributed in the hope that it will be useful,
|
||
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
// GNU General Public License for more details.
|
||
|
|
|
||
|
|
// You should have received a copy of the GNU General Public License
|
||
|
|
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
import { action, computed, observable } from 'mobx';
|
||
|
|
|
||
|
|
const STATUS_OK = 'ok';
|
||
|
|
const STATUS_WARN = 'needsAttention';
|
||
|
|
const STATUS_BAD = 'bad';
|
||
|
|
const EMPTY_OVERALL = { message: [], status: STATUS_BAD };
|
||
|
|
|
||
|
|
export default class Store {
|
||
|
|
@observable _health = null;
|
||
|
|
|
||
|
|
constructor (api) {
|
||
|
|
this._api = api;
|
||
|
|
|
||
|
|
setInterval(this.fetchHealth, 2500);
|
||
|
|
}
|
||
|
|
|
||
|
|
@computed get health () {
|
||
|
|
return this._health
|
||
|
|
? this._health
|
||
|
|
: {};
|
||
|
|
}
|
||
|
|
|
||
|
|
@computed get overall () {
|
||
|
|
return this._health
|
||
|
|
? this._health.overall
|
||
|
|
: EMPTY_OVERALL;
|
||
|
|
}
|
||
|
|
|
||
|
|
fetchHealth = () => {
|
||
|
|
// Support Parity-Extension.
|
||
|
|
const uiUrl = this._api.transport.uiUrlWithProtocol || '';
|
||
|
|
|
||
|
|
return fetch(`${uiUrl}/api/health`)
|
||
|
|
.then((response) => {
|
||
|
|
if (!response.ok) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
return response.json();
|
||
|
|
})
|
||
|
|
.catch(() => {
|
||
|
|
return null;
|
||
|
|
})
|
||
|
|
.then(this.setHealth);
|
||
|
|
}
|
||
|
|
|
||
|
|
_overallStatus = (health) => {
|
||
|
|
const all = [health.peers, health.sync, health.time].filter(x => x);
|
||
|
|
const statuses = all.map(x => x.status);
|
||
|
|
const bad = statuses.find(x => x === STATUS_BAD);
|
||
|
|
const needsAttention = statuses.find(x => x === STATUS_WARN);
|
||
|
|
const message = all.map(x => x.message).filter(x => x);
|
||
|
|
|
||
|
|
if (all.length) {
|
||
|
|
return {
|
||
|
|
status: bad || needsAttention || STATUS_OK,
|
||
|
|
message
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
return {
|
||
|
|
status: STATUS_BAD,
|
||
|
|
message: ['Unable to fetch node health.']
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
@action setHealth = (health) => {
|
||
|
|
if (!health) {
|
||
|
|
this._health = null;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
health.peers = health.peers || {};
|
||
|
|
health.sync = health.sync || {};
|
||
|
|
health.time = health.time || {};
|
||
|
|
health.overall = this._overallStatus(health);
|
||
|
|
|
||
|
|
this._health = health;
|
||
|
|
}
|
||
|
|
|
||
|
|
static instance = null;
|
||
|
|
|
||
|
|
static get (api) {
|
||
|
|
if (!Store.instance) {
|
||
|
|
Store.instance = new Store(api);
|
||
|
|
}
|
||
|
|
|
||
|
|
return Store.instance;
|
||
|
|
}
|
||
|
|
}
|