667 lines
20 KiB
JavaScript
667 lines
20 KiB
JavaScript
define([
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'angular',
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'lodash',
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'kbn',
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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) {
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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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// Limit metrics per panel for templated request
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this.limitmetrics = datasource.meta.limitmetrics || 50;
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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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* @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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// Create request for each target
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var promises = _.map(options.targets, function(target) {
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// Remove undefined and hidden targets
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if (target.hide || !target.group || !target.host || !target.application || !target.item) {
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return [];
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}
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var groupname = target.group ? templateSrv.replace(target.group.name) : undefined;
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var hostname = target.host ? templateSrv.replace(target.host.name) : undefined;
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var appname = target.application ? templateSrv.replace(target.application.name) : undefined;
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var itemname = target.item ? templateSrv.replace(target.item.name) : undefined;
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// Extract zabbix hosts from hosts string:
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// "{host1,host2,...,hostN}" --> [host1, host2, ..., hostN]
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var hosts = hostname ? splitMetrics(hostname) : undefined;
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var groups = groupname ? splitMetrics(groupname) : undefined;
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var apps = appname ? splitMetrics(appname) : undefined;
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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 = itemname ? splitMetrics(itemname.replace(delete_hostname_pattern, '')) : [];
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//var aliases = itemname.match(itemname_pattern);
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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 (itemnames.length < this.limitmetrics) {
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// Find items by item names and perform queries
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var self = this;
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return this.itemFindQuery(groups, hosts, apps)
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.then(function (items) {
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if (itemnames != 'All') {
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return _.filter(items, function (item) {
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return _.contains(itemnames, 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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}).then(function (items) {
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items = _.flatten(items);
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return self.performTimeSeriesQuery(items, from, to)
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.then(_.partial(self.handleHistoryResponse, items));
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});
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} else {
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return [];
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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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/**
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* Perform history query from Zabbix API
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*
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* @param {Array} items Array of Zabbix item objects
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* @param {Number} start Time in seconds
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* @param {Number} end Time in seconds
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* @return {Array} Array of Zabbix history objects
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*/
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ZabbixAPIDatasource.prototype.performTimeSeriesQuery = function(items, start, end) {
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// Group items by value type
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var grouped_items = _.groupBy(items, 'value_type');
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// Perform request for each value type
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return $q.all(_.map(grouped_items, function (items, value_type) {
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var itemids = _.map(items, 'itemid');
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var params = {
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output: 'extend',
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history: value_type,
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itemids: itemids,
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sortfield: 'clock',
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sortorder: 'ASC',
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time_from: start
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};
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// Relative queries (e.g. last hour) don't include an end time
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if (end) {
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params.time_till = end;
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}
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return this.performZabbixAPIRequest('history.get', params);
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}, this)).then(function (results) {
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return _.flatten(results);
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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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* @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, 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+': ' : '') + 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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return [value, p.clock * 1000];
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})
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};
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return series;
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}));
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};
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/**
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* Request data from Zabbix API
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*
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* @param {string} method Zabbix API method name
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* @param {object} params method params
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* @return {object} result
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*/
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ZabbixAPIDatasource.prototype.performZabbixAPIRequest = function(method, params) {
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var options = {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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url: this.url,
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data: {
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jsonrpc: '2.0',
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method: method,
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params: params,
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auth: this.auth,
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id: 1
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}
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};
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var self = this;
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return backendSrv.datasourceRequest(options).then(function (response) {
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if (!response.data) {
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return [];
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}
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else if (response.data.error) {
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// Handle Zabbix API errors
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// Handle auth errors
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if (response.data.error.data == "Session terminated, re-login, please." ||
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response.data.error.data == 'Not authorised.') {
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return self.performZabbixAPILogin().then(function (response) {
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self.auth = response;
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return self.performZabbixAPIRequest(method, params);
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});
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}
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}
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return response.data.result;
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});
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};
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// Get authentication token
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ZabbixAPIDatasource.prototype.performZabbixAPILogin = function() {
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var options = {
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url : this.url,
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method : 'POST',
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data: {
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jsonrpc: '2.0',
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method: 'user.login',
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params: {
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user: this.username,
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password: this.password
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},
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auth: null,
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id: 1
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},
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};
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return backendSrv.datasourceRequest(options).then(function (result) {
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if (!result.data) {
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return null;
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}
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return result.data.result;
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});
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};
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// Get the list of host groups
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ZabbixAPIDatasource.prototype.performHostGroupSuggestQuery = function() {
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var params = {
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output: ['name'],
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sortfield: 'name',
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// Return only host groups that contain hosts
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real_hosts: true,
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// Return only host groups that contain monitored hosts.
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monitored_hosts: true
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};
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return this.performZabbixAPIRequest('hostgroup.get', params);
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};
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// Get the list of hosts
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ZabbixAPIDatasource.prototype.performHostSuggestQuery = function(groupids) {
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var params = {
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output: ['name', 'host'],
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sortfield: 'name',
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// Return only hosts that have items with numeric type of information.
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with_simple_graph_items: true,
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// Return only monitored hosts.
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monitored_hosts: true
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};
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// Return only hosts in given group
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if (groupids) {
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params.groupids = groupids;
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}
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return this.performZabbixAPIRequest('host.get', params);
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};
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// Get the list of applications
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ZabbixAPIDatasource.prototype.performAppSuggestQuery = function(hostids, /* optional */ groupids) {
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var params = {
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output: ['name'],
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sortfield: 'name'
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};
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if (hostids) {
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params.hostids = hostids;
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}
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else if (groupids) {
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params.groupids = groupids;
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}
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return this.performZabbixAPIRequest('application.get', params);
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};
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// Get the list of host items
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ZabbixAPIDatasource.prototype.performItemSuggestQuery = function(hostids, applicationids, /* optional */ groupids) {
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var params = {
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output: ['name', 'key_', 'value_type', 'delay'],
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sortfield: 'name',
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//Include web items in the result
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webitems: true,
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// Return only numeric items
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filter: {
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value_type: [0,3]
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},
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// Return only enabled items
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monitored: true,
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searchByAny: true
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};
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if (hostids) {
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params.hostids = hostids;
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}
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else if (groupids) {
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params.groupids = groupids;
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}
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// If application selected return only relative items
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if (applicationids) {
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params.applicationids = applicationids;
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}
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// Return host property for multiple hosts
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if (!hostids || (_.isArray(hostids) && hostids.length > 1)) {
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params.selectHosts = ['name'];
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}
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return this.performZabbixAPIRequest('item.get', params);
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};
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ZabbixAPIDatasource.prototype.findZabbixGroup = function (group) {
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var params = {
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output: ['name'],
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search: {
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name: group
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},
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searchByAny: true,
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searchWildcardsEnabled: true
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}
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return this.performZabbixAPIRequest('hostgroup.get', params);
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};
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ZabbixAPIDatasource.prototype.findZabbixHost = function (hostnames) {
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var params = {
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output: ['host', 'name'],
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search: {
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host: hostnames,
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name: hostnames
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},
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searchByAny: true,
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searchWildcardsEnabled: true
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}
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return this.performZabbixAPIRequest('host.get', params);
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};
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ZabbixAPIDatasource.prototype.findZabbixApp = function (application) {
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var params = {
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output: ['name'],
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search: {
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name: application
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},
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searchByAny: true,
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searchWildcardsEnabled: true,
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}
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return this.performZabbixAPIRequest('application.get', params);
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};
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ZabbixAPIDatasource.prototype.findZabbixItem = function (hosts, itemnames, /* optional */ selectHosts) {
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var self = this;
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return this.findZabbixHost(hosts).then(function (hosts) {
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var hostids = _.map(hosts, 'hostid');
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var params = {
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output: ['name', 'key_', 'value_type'],
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hostids: hostids,
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searchWildcardsEnabled: true
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};
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if (selectHosts) {
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params.selectHosts = ['name'];
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}
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return self.performZabbixAPIRequest('item.get', params)
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.then(function (items) {
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return _.filter(items, function (item) {
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return _.contains(itemnames, expandItemName(item));
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});
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});
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});
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};
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/**
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* For templated query
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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 this.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 = expandItemName(item)
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return {
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// TODO: select only unique names
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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 this.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 this.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 this.performHostGroupSuggestQuery().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
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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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* Find items from templated request
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*
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* @param {object} template Template object in format:
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* {
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* group: [groupnames],
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* host: [hostnames],
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* app: [appnames],
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* item: [itemnames]
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* }
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*
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* @return {Array} Array of Zabbix API item objects
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*/
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ZabbixAPIDatasource.prototype.itemFindQuery = function(groups, hosts, apps) {
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var promises = [];
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// Get hostids from names
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if (hosts && hosts != '*') {
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promises.push(this.findZabbixHost(hosts));
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}
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// Get groupids from names
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else if (groups) {
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promises.push(this.findZabbixGroup(groups));
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}
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// Get applicationids from names
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if (apps) {
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promises.push(this.findZabbixApp(apps));
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}
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var self = this;
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return $q.all(promises).then(function (results) {
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results = _.flatten(results);
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if (groups) {
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var groupids = _.map(_.filter(results, function (object) {
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return object.groupid;
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}), 'groupid');
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}
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if (hosts && hosts != '*') {
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var hostids = _.map(_.filter(results, function (object) {
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return object.hostid;
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}), 'hostid');
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}
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if (apps) {
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var applicationids = _.map(_.filter(results, function (object) {
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return object.applicationid;
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}), 'applicationid');
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}
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return self.performItemSuggestQuery(hostids, applicationids, groupids);
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});
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};
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ZabbixAPIDatasource.prototype.appFindQuery = function(hosts, groups) {
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var promises = [];
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// Get hostids from names
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if (hosts && hosts != '*') {
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promises.push(this.findZabbixHost(hosts));
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}
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// Get groupids from names
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else if (groups) {
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promises.push(this.findZabbixGroup(groups));
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}
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var self = this;
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return $q.all(promises).then(function (results) {
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results = _.flatten(results);
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if (groups) {
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var groupids = _.map(_.filter(results, function (object) {
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return object.groupid;
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}), 'groupid');
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}
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if (hosts && hosts != '*') {
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var hostids = _.map(_.filter(results, function (object) {
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return object.hostid;
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}), 'hostid');
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}
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return self.performAppSuggestQuery(hostids, groupids);
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});
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};
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ZabbixAPIDatasource.prototype.hostFindQuery = function(groups) {
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var self = this;
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return this.findZabbixGroup(groups).then(function (results) {
|
|
results = _.flatten(results);
|
|
var groupids = _.map(_.filter(results, function (object) {
|
|
return object.groupid;
|
|
}), 'groupid');
|
|
|
|
return self.performHostSuggestQuery(groupids);
|
|
});
|
|
};
|
|
|
|
|
|
/////////////////
|
|
// Annotations //
|
|
/////////////////
|
|
|
|
|
|
ZabbixAPIDatasource.prototype.annotationQuery = function(annotation, rangeUnparsed) {
|
|
var from = Math.ceil(kbn.parseDate(rangeUnparsed.from).getTime() / 1000);
|
|
var to = Math.ceil(kbn.parseDate(rangeUnparsed.to).getTime() / 1000);
|
|
var self = this;
|
|
|
|
var params = {
|
|
output: ['triggerid', 'description'],
|
|
search: {
|
|
'description': annotation.query
|
|
},
|
|
};
|
|
|
|
return this.performZabbixAPIRequest('trigger.get', params)
|
|
.then(function (result) {
|
|
if(result) {
|
|
var obs = {};
|
|
obs = _.indexBy(result, 'triggerid');
|
|
|
|
var params = {
|
|
output: 'extend',
|
|
sortorder: 'DESC',
|
|
time_from: from,
|
|
time_till: to,
|
|
objectids: _.keys(obs)
|
|
};
|
|
|
|
return self.performZabbixAPIRequest('event.get', params)
|
|
.then(function (result) {
|
|
var events = [];
|
|
_.each(result, function(e) {
|
|
events.push({
|
|
annotation: annotation,
|
|
time: e.clock * 1000,
|
|
title: obs[e.objectid].description,
|
|
text: e.eventid,
|
|
});
|
|
});
|
|
return events;
|
|
});
|
|
} else {
|
|
return [];
|
|
}
|
|
});
|
|
};
|
|
|
|
return ZabbixAPIDatasource;
|
|
});
|
|
});
|
|
|
|
|
|
/**
|
|
* Convert multiple mettrics to array
|
|
* "{metric1,metcic2,...,metricN}" --> [metric1, metcic2,..., metricN]
|
|
*
|
|
* @param {string} metrics "{metric1,metcic2,...,metricN}"
|
|
* @return {Array} [metric1, metcic2,..., metricN]
|
|
*/
|
|
function splitMetrics(metrics) {
|
|
var remove_brackets_pattern = /^{|}$/g;
|
|
var metric_split_pattern = /,(?!\s)/g;
|
|
return metrics.replace(remove_brackets_pattern, '').split(metric_split_pattern)
|
|
}
|
|
|
|
|
|
/**
|
|
* Expand item parameters, for example:
|
|
* CPU $2 time ($3) --> CPU system time (avg1)
|
|
*
|
|
* @param item: zabbix api item object
|
|
* @return: expanded item name (string)
|
|
*/
|
|
function expandItemName(item) {
|
|
var name = item.name;
|
|
var key = item.key_;
|
|
|
|
// extract params from key:
|
|
// "system.cpu.util[,system,avg1]" --> ["", "system", "avg1"]
|
|
var key_params = key.substring(key.indexOf('[') + 1, key.lastIndexOf(']')).split(',');
|
|
|
|
// replace item parameters
|
|
for (var i = key_params.length; i >= 1; i--) {
|
|
name = name.replace('$' + i, key_params[i - 1]);
|
|
};
|
|
return name;
|
|
}; |