420 lines
14 KiB
JavaScript
420 lines
14 KiB
JavaScript
define([
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'angular',
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'lodash',
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'kbn',
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'./zabbixAPIWrapper',
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'./queryCtrl'
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],
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function (angular, _, kbn) {
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'use strict';
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var module = angular.module('grafana.services');
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module.factory('ZabbixAPIDatasource', function($q, backendSrv, templateSrv, zabbix) {
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/**
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* Datasource initialization. Calls when you refresh page, add
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* or modify datasource.
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*
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* @param {Object} datasource Grafana datasource object.
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*/
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function ZabbixAPIDatasource(datasource) {
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this.name = datasource.name;
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this.url = datasource.url;
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// TODO: fix passing username and password from config.html
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this.username = datasource.meta.username;
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this.password = datasource.meta.password;
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// Use trends instead history since specified time
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this.trends = datasource.meta.trends;
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this.trendsFrom = datasource.meta.trendsFrom || '7d';
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// Limit metrics per panel for templated request
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this.limitmetrics = datasource.meta.limitmetrics || 50;
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// Initialize Zabbix API
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zabbix.init(this.url, this.username, this.password);
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}
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/**
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* Calls for each panel in dashboard.
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*
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* @param {Object} options Query options. Contains time range, targets
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* and other info.
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*
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* @return {Object} Grafana metrics object with timeseries data
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* for each target.
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*/
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ZabbixAPIDatasource.prototype.query = function(options) {
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// get from & to in seconds
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var from = Math.ceil(kbn.parseDate(options.range.from).getTime() / 1000);
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var to = Math.ceil(kbn.parseDate(options.range.to).getTime() / 1000);
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var useTrendsFrom = Math.ceil(kbn.parseDate('now-' + this.trendsFrom).getTime() / 1000);
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// Create request for each target
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var promises = _.map(options.targets, function(target) {
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// Don't show undefined and hidden targets
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if (target.hide || !target.group || !target.host
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|| !target.application || !target.item) {
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return [];
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}
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// Replace templated variables
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var groupname = templateSrv.replace(target.group.name);
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var hostname = templateSrv.replace(target.host.name);
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var appname = templateSrv.replace(target.application.name);
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var itemname = templateSrv.replace(target.item.name);
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// Extract zabbix groups, hosts and apps from string:
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// "{host1,host2,...,hostN}" --> [host1, host2, ..., hostN]
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var groups = splitMetrics(groupname);
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var hosts = splitMetrics(hostname);
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var apps = splitMetrics(appname);
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// Remove hostnames from item names and then
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// extract item names
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// "hostname: itemname" --> "itemname"
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var delete_hostname_pattern = /(?:\[[\w\.]+\]\:\s)/g;
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var itemnames = splitMetrics(itemname.replace(delete_hostname_pattern, ''));
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// Find items by item names and perform queries
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var self = this;
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return zabbix.itemFindQuery(groups, hosts, apps)
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.then(function (items) {
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// Filter hosts by regex
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if (target.host.visible_name == 'All') {
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if (target.hostFilter && _.every(items, _.identity.hosts)) {
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var host_pattern = new RegExp(target.hostFilter);
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items = _.filter(items, function (item) {
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return _.some(item.hosts, function (host) {
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return host_pattern.test(host.name);
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});
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});
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}
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}
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if (itemnames == 'All') {
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// Filter items by regex
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if (target.itemFilter) {
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var item_pattern = new RegExp(target.itemFilter);
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return _.filter(items, function (item) {
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return item_pattern.test(zabbix.expandItemName(item));
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});
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} else {
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return items;
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}
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} else {
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// Filtering items
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return _.filter(items, function (item) {
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return _.contains(itemnames, zabbix.expandItemName(item));
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});
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}
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}).then(function (items) {
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// Don't perform query for high number of items
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// to prevent Grafana slowdown
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if (items.length > self.limitmetrics) {
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return [];
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} else {
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items = _.flatten(items);
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var alias = target.item.name === 'All' ? undefined : templateSrv.replace(target.alias);
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if ((from < useTrendsFrom) && self.trends) {
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return zabbix.getTrends(items, from, to)
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.then(_.partial(self.handleTrendResponse, items, alias, target.scale));
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} else {
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return zabbix.getHistory(items, from, to)
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.then(_.partial(self.handleHistoryResponse, items, alias, target.scale));
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}
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}
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});
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}, this);
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return $q.all(_.flatten(promises)).then(function (results) {
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return { data: _.flatten(results) };
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});
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};
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ZabbixAPIDatasource.prototype.handleTrendResponse = function(items, alias, scale, trends) {
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// Group items and trends by itemid
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var indexed_items = _.indexBy(items, 'itemid');
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var grouped_history = _.groupBy(trends, 'itemid');
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return $q.when(_.map(grouped_history, function (trends, itemid) {
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var item = indexed_items[itemid];
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var series = {
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target: (item.hosts ? item.hosts[0].name+': ' : '') + (alias ? alias : zabbix.expandItemName(item)),
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datapoints: _.map(trends, function (p) {
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// Value must be a number for properly work
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var value = Number(p.value_avg);
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// Apply scale
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if (scale) {
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value *= scale;
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}
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return [value, p.clock * 1000];
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})
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};
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return series;
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})).then(function (result) {
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return _.sortBy(result, 'target');
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});
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};
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/**
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* Convert Zabbix API data to Grafana format
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*
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* @param {Array} items Array of Zabbix Items
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* @param {Array} history Array of Zabbix History
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*
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* @return {Array} Array of timeseries in Grafana format
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* {
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* target: "Metric name",
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* datapoints: [[<value>, <unixtime>], ...]
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* }
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*/
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ZabbixAPIDatasource.prototype.handleHistoryResponse = function(items, alias, scale, history) {
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/**
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* Response should be in the format:
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* data: [
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* {
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* target: "Metric name",
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* datapoints: [[<value>, <unixtime>], ...]
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* },
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* {
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* target: "Metric name",
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* datapoints: [[<value>, <unixtime>], ...]
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* },
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* ]
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*/
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// Group items and history by itemid
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var indexed_items = _.indexBy(items, 'itemid');
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var grouped_history = _.groupBy(history, 'itemid');
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return $q.when(_.map(grouped_history, function (history, itemid) {
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var item = indexed_items[itemid];
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var series = {
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target: (item.hosts ? item.hosts[0].name+': ' : '') + (alias ? alias : zabbix.expandItemName(item)),
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datapoints: _.map(history, function (p) {
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// Value must be a number for properly work
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var value = Number(p.value);
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// Apply scale
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if (scale) {
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value *= scale;
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}
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return [value, p.clock * 1000];
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})
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};
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return series;
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})).then(function (result) {
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return _.sortBy(result, 'target');
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});
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};
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/**
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* For templated query.
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* Find metrics from templated request.
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*
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* @param {string} query Query from Templating
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* @return {string} Metric name - group, host, app or item or list
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* of metrics in "{metric1,metcic2,...,metricN}" format.
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*/
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ZabbixAPIDatasource.prototype.metricFindQuery = function (query) {
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// Split query. Query structure:
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// group.host.app.item
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var parts = [];
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_.each(query.split('.'), function (part) {
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part = templateSrv.replace(part);
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if (part[0] === '{') {
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// Convert multiple mettrics to array
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// "{metric1,metcic2,...,metricN}" --> [metric1, metcic2,..., metricN]
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parts.push(splitMetrics(part));
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} else {
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parts.push(part);
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}
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});
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var template = _.object(['group', 'host', 'app', 'item'], parts)
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// Get items
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if (parts.length === 4) {
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return zabbix.itemFindQuery(template.group, template.host, template.app).then(function (result) {
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return _.map(result, function (item) {
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var itemname = zabbix.expandItemName(item)
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return {
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text: itemname,
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expandable: false
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};
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});
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});
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}
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// Get applications
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else if (parts.length === 3) {
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return zabbix.appFindQuery(template.host, template.group).then(function (result) {
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return _.map(result, function (app) {
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return {
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text: app.name,
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expandable: false
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};
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});
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});
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}
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// Get hosts
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else if (parts.length === 2) {
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return zabbix.hostFindQuery(template.group).then(function (result) {
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return _.map(result, function (host) {
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return {
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text: host.name,
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expandable: false
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};
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});
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});
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}
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// Get groups
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else if (parts.length === 1) {
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return zabbix.getGroupByName(template.group).then(function (result) {
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return _.map(result, function (hostgroup) {
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return {
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text: hostgroup.name,
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expandable: false
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};
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});
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});
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}
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// Return empty object for invalid request
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else {
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var d = $q.defer();
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d.resolve([]);
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return d.promise;
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}
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};
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/////////////////
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// Annotations //
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/////////////////
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ZabbixAPIDatasource.prototype.annotationQuery = function(annotation, rangeUnparsed) {
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var from = Math.ceil(kbn.parseDate(rangeUnparsed.from).getTime() / 1000);
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var to = Math.ceil(kbn.parseDate(rangeUnparsed.to).getTime() / 1000);
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var self = this;
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var params = {
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output: ['triggerid', 'description'],
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search: {
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'description': annotation.query
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},
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searchWildcardsEnabled: true,
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expandDescription: true
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};
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return this.performZabbixAPIRequest('trigger.get', params)
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.then(function (result) {
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if(result) {
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var objects = _.indexBy(result, 'triggerid');
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var params = {
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output: 'extend',
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time_from: from,
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time_till: to,
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objectids: _.keys(objects),
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select_acknowledges: 'extend'
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};
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// Show problem events only
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if (!annotation.showOkEvents) {
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params.value = 1;
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}
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return self.performZabbixAPIRequest('event.get', params)
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.then(function (result) {
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var events = [];
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_.each(result, function(e) {
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var formatted_acknowledges = formatAcknowledges(e.acknowledges);;
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events.push({
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annotation: annotation,
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time: e.clock * 1000,
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title: Number(e.value) ? 'Problem' : 'OK',
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text: objects[e.objectid].description + formatted_acknowledges,
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});
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});
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return events;
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});
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} else {
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return [];
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}
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});
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};
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return ZabbixAPIDatasource;
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});
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});
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/**
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* Convert multiple mettrics to array
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* "{metric1,metcic2,...,metricN}" --> [metric1, metcic2,..., metricN]
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*
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* @param {string} metrics "{metric1,metcic2,...,metricN}"
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* @return {Array} [metric1, metcic2,..., metricN]
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*/
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function splitMetrics(metrics) {
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var remove_brackets_pattern = /^{|}$/g;
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var metric_split_pattern = /,(?!\s)/g;
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return metrics.replace(remove_brackets_pattern, '').split(metric_split_pattern)
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}
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/**
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* Convert Date object to local time in format
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* YYYY-MM-DD HH:mm:ss
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*
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* @param {Date} date Date object
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* @return {string} formatted local time YYYY-MM-DD HH:mm:ss
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*/
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function getShortTime(date) {
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var MM = date.getMonth() < 10 ? '0' + date.getMonth() : date.getMonth();
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var DD = date.getDate() < 10 ? '0' + date.getDate() : date.getDate();
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var HH = date.getHours() < 10 ? '0' + date.getHours() : date.getHours();
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var mm = date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes();
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var ss = date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds();
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return date.getFullYear() + '-' + MM + '-' + DD + ' ' + HH + ':' + mm + ':' + ss;
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}
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/**
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* Format acknowledges.
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*
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* @param {array} acknowledges array of Zabbix acknowledge objects
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* @return {string} HTML-formatted table
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*/
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function formatAcknowledges(acknowledges) {
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if (acknowledges.length) {
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var formatted_acknowledges = '<br><br>Acknowledges:<br><table><tr><td><b>Time</b></td><td><b>User</b></td><td><b>Comments</b></td></tr>';
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_.each(_.map(acknowledges, function (ack) {
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var time = new Date(ack.clock * 1000);
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return '<tr><td><i>' + getShortTime(time) + '</i></td><td>' + ack.alias + ' (' + ack.name+ ' ' + ack.surname + ')' + '</td><td>' + ack.message + '</td></tr>';
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}), function (ack) {
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formatted_acknowledges = formatted_acknowledges.concat(ack)
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});
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formatted_acknowledges = formatted_acknowledges.concat('</table>')
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return formatted_acknowledges;
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} else {
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return '';
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}
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}
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