77 lines
2.0 KiB
JavaScript
77 lines
2.0 KiB
JavaScript
import EmberObject, { computed } from '@ember/object';
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import { alias } from '@ember/object/computed';
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import RollingArray from 'nomad-ui/utils/classes/rolling-array';
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import AbstractStatsTracker from 'nomad-ui/utils/classes/abstract-stats-tracker';
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import classic from 'ember-classic-decorator';
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const percent = (numerator, denominator) => {
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if (!numerator || !denominator) {
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return 0;
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}
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return numerator / denominator;
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};
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const empty = (ts) => ({ timestamp: ts, used: null, percent: null });
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@classic
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class NodeStatsTracker extends EmberObject.extend(AbstractStatsTracker) {
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// Set via the stats computed property macro
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node = null;
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@computed('node.id')
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get url() {
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return `/v1/client/stats?node_id=${this.get('node.id')}`;
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}
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append(frame) {
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const timestamp = new Date(Math.floor(frame.Timestamp / 1000000));
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const cpuUsed = Math.floor(frame.CPUTicksConsumed) || 0;
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this.cpu.pushObject({
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timestamp,
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used: cpuUsed,
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percent: percent(cpuUsed, this.reservedCPU),
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});
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const memoryUsed = frame.Memory.Used;
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this.memory.pushObject({
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timestamp,
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used: memoryUsed,
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percent: percent(memoryUsed / 1024 / 1024, this.reservedMemory),
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});
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}
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pause() {
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const ts = new Date();
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this.memory.pushObject(empty(ts));
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this.cpu.pushObject(empty(ts));
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}
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// Static figures, denominators for stats
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@alias('node.resources.cpu') reservedCPU;
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@alias('node.resources.memory') reservedMemory;
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// Dynamic figures, collected over time
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// []{ timestamp: Date, used: Number, percent: Number }
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@computed('bufferSize', 'node')
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get cpu() {
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return RollingArray(this.bufferSize);
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}
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@computed('bufferSize', 'node')
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get memory() {
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return RollingArray(this.bufferSize);
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}
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}
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export default NodeStatsTracker;
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export function stats(nodeProp, fetch) {
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return computed(nodeProp, function () {
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return NodeStatsTracker.create({
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fetch: fetch.call(this),
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node: this.get(nodeProp),
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});
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});
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}
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