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<script>
/* global Flash */
import _ from 'underscore';
import statusCodes from '../../lib/utils/http_status';
import MonitoringService from '../services/monitoring_service';
import GraphGroup from './graph_group.vue';
import Graph from './graph.vue';
import EmptyState from './empty_state.vue';
import MonitoringStore from '../stores/monitoring_store';
import eventHub from '../event_hub';
import { backOff } from '../../lib/utils/common_utils';
export default {
data() {
const metricsData = document.querySelector('#prometheus-graphs').dataset;
const store = new MonitoringStore();
return {
store,
state: 'gettingStarted',
hasMetrics: gl.utils.convertPermissionToBoolean(metricsData.hasMetrics),
documentationPath: metricsData.documentationPath,
settingsPath: metricsData.settingsPath,
endpoint: metricsData.additionalMetrics,
deploymentEndpoint: metricsData.deploymentEndpoint,
showEmptyState: true,
backOffRequestCounter: 0,
updateAspectRatio: false,
updatedAspectRatios: 0,
resizeThrottled: {},
};
},
components: {
Graph,
GraphGroup,
EmptyState,
},
methods: {
getGraphsData() {
const maxNumberOfRequests = 3;
this.state = 'loading';
backOff((next, stop) => {
this.service.get().then((resp) => {
if (resp.status === statusCodes.NO_CONTENT) {
this.backOffRequestCounter = this.backOffRequestCounter += 1;
if (this.backOffRequestCounter < maxNumberOfRequests) {
next();
} else {
stop(new Error('Failed to connect to the prometheus server'));
}
} else {
stop(resp);
}
}).catch(stop);
})
.then((resp) => {
if (resp.status === statusCodes.NO_CONTENT) {
this.state = 'unableToConnect';
return false;
}
return resp.json();
})
.then((metricGroupsData) => {
if (!metricGroupsData) return false;
this.store.storeMetrics(metricGroupsData.data);
return this.getDeploymentData();
})
.then((deploymentData) => {
if (deploymentData !== false) {
this.store.storeDeploymentData(deploymentData.deployments);
this.showEmptyState = false;
}
return {};
})
.catch(() => {
this.state = 'unableToConnect';
});
},
getDeploymentData() {
return this.service.getDeploymentData(this.deploymentEndpoint)
.then(resp => resp.json())
.catch(() => new Flash('Error getting deployment information.'));
},
resize() {
this.updateAspectRatio = true;
},
toggleAspectRatio() {
this.updatedAspectRatios = this.updatedAspectRatios += 1;
if (this.store.getMetricsCount() === this.updatedAspectRatios) {
this.updateAspectRatio = !this.updateAspectRatio;
this.updatedAspectRatios = 0;
}
},
},
created() {
this.service = new MonitoringService(this.endpoint);
eventHub.$on('toggleAspectRatio', this.toggleAspectRatio);
},
beforeDestroy() {
eventHub.$off('toggleAspectRatio', this.toggleAspectRatio);
window.removeEventListener('resize', this.resizeThrottled, false);
},
mounted() {
this.resizeThrottled = _.throttle(this.resize, 600);
if (!this.hasMetrics) {
this.state = 'gettingStarted';
} else {
this.getGraphsData();
window.addEventListener('resize', this.resizeThrottled, false);
}
},
};
</script>
<template>
<div v-if="!showEmptyState" class="prometheus-graphs">
<graph-group
v-for="(groupData, index) in store.groups"
:key="index"
:name="groupData.group"
>
<graph
v-for="(graphData, index) in groupData.metrics"
:key="index"
:graph-data="graphData"
:update-aspect-ratio="updateAspectRatio"
:deployment-data="store.deploymentData"
/>
</graph-group>
</div>
<empty-state
v-else
:selected-state="state"
:documentation-path="documentationPath"
:settings-path="settingsPath"
/>
</template>
|
