Files
grafana-zabbix/plugins/datasource-zabbix/datasource.js
2016-02-01 13:50:44 +03:00

421 lines
15 KiB
JavaScript

define([
'angular',
'lodash',
'app/core/utils/datemath',
'./utils',
'./metricFunctions',
'./queryProcessor',
'./directives',
'./zabbixAPI',
'./helperFunctions',
'./dataProcessingService',
'./zabbixCache',
'./queryCtrl',
'./addMetricFunction',
'./metricFunctionEditor'
],
function (angular, _, dateMath, utils, metricFunctions) {
'use strict';
/** @ngInject */
function ZabbixAPIDatasource(instanceSettings, $q, templateSrv, alertSrv, zabbixHelperSrv,
ZabbixAPI, ZabbixCachingProxy, QueryProcessor, DataProcessingService) {
// General data source settings
this.name = instanceSettings.name;
this.url = instanceSettings.url;
this.basicAuth = instanceSettings.basicAuth;
this.withCredentials = instanceSettings.withCredentials;
// Zabbix API credentials
this.username = instanceSettings.jsonData.username;
this.password = instanceSettings.jsonData.password;
// Use trends instead history since specified time
this.trends = instanceSettings.jsonData.trends;
this.trendsFrom = instanceSettings.jsonData.trendsFrom || '7d';
// Initialize Zabbix API
this.zabbixAPI = new ZabbixAPI(this.url, this.username, this.password, this.basicAuth, this.withCredentials);
// Initialize cache service
this.zabbixCache = new ZabbixCachingProxy(this.zabbixAPI);
// Initialize query builder
this.queryProcessor = new QueryProcessor(this.zabbixCache);
console.log(this.zabbixCache);
////////////////////////
// Datasource methods //
////////////////////////
/**
* Test connection to Zabbix API
* @return {object} Connection status and Zabbix API version
*/
this.testDatasource = function() {
var self = this;
return this.zabbixAPI.getVersion().then(function (version) {
return self.zabbixAPI.login().then(function (auth) {
if (auth) {
return {
status: "success",
title: "Success",
message: "Zabbix API version: " + version
};
} else {
return {
status: "error",
title: "Invalid user name or password",
message: "Zabbix API version: " + version
};
}
}, function(error) {
console.log(error);
return {
status: "error",
title: "Connection failed",
message: error
};
});
},
function(error) {
console.log(error);
return {
status: "error",
title: "Connection failed",
message: "Could not connect to given url"
};
});
};
/**
* Query panel data. Calls for each panel in dashboard.
* @param {Object} options Contains time range, targets and other info.
* @return {Object} Grafana metrics object with timeseries data for each target.
*/
this.query = function(options) {
var self = this;
// get from & to in seconds
var from = Math.ceil(dateMath.parse(options.range.from) / 1000);
var to = Math.ceil(dateMath.parse(options.range.to) / 1000);
var useTrendsFrom = Math.ceil(dateMath.parse('now-' + this.trendsFrom) / 1000);
// Create request for each target
var promises = _.map(options.targets, function(target) {
if (target.mode !== 1) {
// Don't request undefined and hidden targets
if (target.hide || !target.group ||
!target.host || !target.item) {
return [];
}
// Replace templated variables
var groupFilter = templateSrv.replace(target.group.filter, options.scopedVars);
var hostFilter = templateSrv.replace(target.host.filter, options.scopedVars);
var appFilter = templateSrv.replace(target.application.filter, options.scopedVars);
var itemFilter = templateSrv.replace(target.item.filter, options.scopedVars);
// Query numeric data
if (!target.mode || target.mode === 0) {
// Build query in asynchronous manner
return self.queryProcessor.build(groupFilter, hostFilter, appFilter, itemFilter)
.then(function(items) {
// Add hostname for items from multiple hosts
var addHostName = target.host.isRegex;
var getHistory;
if ((from < useTrendsFrom) && self.trends) {
// Use trends
var valueType = target.downsampleFunction ? target.downsampleFunction.value : "avg";
getHistory = self.zabbixAPI.getTrends(items, from, to).then(function(history) {
return self.queryProcessor.handleTrends(history, addHostName, valueType);
});
} else {
// Use history
getHistory = self.zabbixCache.getHistory(items, from, to).then(function(history) {
return self.queryProcessor.handleHistory(history, addHostName);
});
}
return getHistory.then(function (timeseries_data) {
timeseries_data = _.map(timeseries_data, function (timeseries) {
// Filter only transform functions
var transformFunctions = bindFunctionDefs(target.functions, 'Transform');
// Metric data processing
var dp = timeseries.datapoints;
for (var i = 0; i < transformFunctions.length; i++) {
dp = transformFunctions[i](dp);
}
timeseries.datapoints = dp;
return timeseries;
});
// Aggregations
var aggregationFunctions = bindFunctionDefs(target.functions, 'Aggregate');
var dp = _.map(timeseries_data, 'datapoints');
if (aggregationFunctions.length) {
for (var i = 0; i < aggregationFunctions.length; i++) {
dp = aggregationFunctions[i](dp);
}
var lastAgg = _.findLast(target.functions, function(func) {
return _.contains(
_.map(metricFunctions.getCategories()['Aggregate'], 'name'), func.def.name);
});
timeseries_data = [{
target: lastAgg.text,
datapoints: dp
}];
}
// Apply alias functions
var aliasFunctions = bindFunctionDefs(target.functions, 'Alias');
for (var j = 0; j < aliasFunctions.length; j++) {
_.each(timeseries_data, aliasFunctions[j]);
}
return timeseries_data;
});
});
}
// Query text data
else if (target.mode === 2) {
// Find items by item names and perform queries
return this.zabbixAPI.itemFindQuery(groups, hosts, apps, "text")
.then(function (items) {
items = _.filter(items, function (item) {
return _.contains(itemnames, zabbixHelperSrv.expandItemName(item));
});
return self.zabbixAPI.getHistory(items, from, to).then(function(history) {
return {
target: target.item.name,
datapoints: _.map(history, function (p) {
var value = p.value;
if (target.textFilter) {
var text_extract_pattern = new RegExp(templateSrv.replace(target.textFilter, options.scopedVars));
//var text_extract_pattern = new RegExp(target.textFilter);
var result = text_extract_pattern.exec(value);
if (result) {
if (target.useCaptureGroups) {
value = result[1];
} else {
value = result[0];
}
} else {
value = null;
}
}
return [value, p.clock * 1000];
})
};
});
});
}
}
// IT services mode
else if (target.mode === 1) {
// Don't show undefined and hidden targets
if (target.hide || !target.itservice || !target.slaProperty) {
return [];
} else {
return this.zabbixAPI.getSLA(target.itservice.serviceid, from, to)
.then(_.bind(zabbixHelperSrv.handleSLAResponse, zabbixHelperSrv, target.itservice, target.slaProperty));
}
}
}, this);
// Data for panel (all targets)
return $q.all(_.flatten(promises))
.then(_.flatten)
.then(function (timeseries_data) {
// Series downsampling
var data = _.map(timeseries_data, function(timeseries) {
var DPS = DataProcessingService;
if (timeseries.datapoints.length > options.maxDataPoints) {
timeseries.datapoints = DPS.groupBy(options.interval, DPS.AVERAGE, timeseries.datapoints);
}
return timeseries;
});
return { data: data };
});
};
function bindFunctionDefs(functionDefs, category) {
var aggregationFunctions = _.map(metricFunctions.getCategories()[category], 'name');
var aggFuncDefs = _.filter(functionDefs, function(func) {
return _.contains(aggregationFunctions, func.def.name);
});
return _.map(aggFuncDefs, function(func) {
var funcInstance = metricFunctions.createFuncInstance(func.def, func.params);
return funcInstance.bindFunction(DataProcessingService.metricFunctions);
});
}
////////////////
// Templating //
////////////////
/**
* Find metrics from templated request.
*
* @param {string} query Query from Templating
* @return {string} Metric name - group, host, app or item or list
* of metrics in "{metric1,metcic2,...,metricN}" format.
*/
this.metricFindQuery = function (query) {
// Split query. Query structure:
// group.host.app.item
var parts = [];
_.each(query.split('.'), function (part) {
part = templateSrv.replace(part);
if (part[0] === '{') {
// Convert multiple mettrics to array
// "{metric1,metcic2,...,metricN}" --> [metric1, metcic2,..., metricN]
parts.push(zabbixHelperSrv.splitMetrics(part));
} else {
parts.push(part);
}
});
var template = _.object(['group', 'host', 'app', 'item'], parts);
// Get items
if (parts.length === 4) {
//var items = this.queryProcessor.filterItems(template.host, template.app, true);
return this.queryProcessor.filterItems(template.group, template.host, template.app, true)
.then(function(items) {
return _.map(items, formatMetric);
});
}
// Get applications
else if (parts.length === 3) {
return this.queryProcessor.filterApplications(template.group, template.host)
.then(function(apps) {
return _.map(apps, formatMetric);
});
}
// Get hosts
else if (parts.length === 2) {
return this.queryProcessor.filterHosts(template.group)
.then(function(hosts) {
return _.map(hosts, formatMetric);
});
}
// Get groups
else if (parts.length === 1) {
return this.zabbixCache.getGroups(template.group).then(function(groups) {
return _.map(groups, formatMetric);
});
}
// Return empty object for invalid request
else {
return $q.when([]);
}
};
function formatMetric(metricObj) {
return {
text: metricObj.name,
expandable: false
};
}
/////////////////
// Annotations //
/////////////////
this.annotationQuery = function(options) {
var from = Math.ceil(dateMath.parse(options.rangeRaw.from) / 1000);
var to = Math.ceil(dateMath.parse(options.rangeRaw.to) / 1000);
var annotation = options.annotation;
var self = this;
// Remove events below the chose severity
var severities = [];
for (var i = 5; i >= annotation.minseverity; i--) {
severities.push(i);
}
var params = {
output: ['triggerid', 'description', 'priority'],
preservekeys: 1,
filter: { 'priority': severities },
search: {
'description': annotation.trigger
},
searchWildcardsEnabled: true,
expandDescription: true
};
if (annotation.host) {
params.host = templateSrv.replace(annotation.host);
}
else if (annotation.group) {
params.group = templateSrv.replace(annotation.group);
}
return this.zabbixAPI.performZabbixAPIRequest('trigger.get', params)
.then(function (result) {
if(result) {
var objects = result;
var params = {
output: 'extend',
time_from: from,
time_till: to,
objectids: _.keys(objects),
select_acknowledges: 'extend',
selectHosts: 'extend'
};
// Show problem events only
if (!annotation.showOkEvents) {
params.value = 1;
}
return self.zabbixAPI.performZabbixAPIRequest('event.get', params)
.then(function (result) {
var events = [];
_.each(result, function(e) {
var title ='';
if (annotation.showHostname) {
title += e.hosts[0].name + ': ';
}
title += Number(e.value) ? 'Problem' : 'OK';
// Hide acknowledged events
if (e.acknowledges.length > 0 && annotation.showAcknowledged) { return; }
var formatted_acknowledges = zabbixHelperSrv.formatAcknowledges(e.acknowledges);
events.push({
annotation: annotation,
time: e.clock * 1000,
title: title,
text: objects[e.objectid].description + formatted_acknowledges
});
});
return events;
});
} else {
return [];
}
});
};
}
return ZabbixAPIDatasource;
});