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Build query in asynchronous manner (fixed getting data at first load).

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This commit is contained in:
Alexander Zobnin
2016-01-28 19:12:08 +03:00
parent 76630587d3
commit 79842184bc
3 changed files with 77 additions and 62 deletions
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120
plugins/datasource-zabbix/datasource.js
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@@ -122,72 +122,74 @@ function (angular, _, dateMath, utils, metricFunctions) {
// Query numeric data
if (!target.mode || target.mode === 0) {
var items = self.queryProcessor.build(groupFilter, hostFilter, appFilter, itemFilter);
// 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;
// Add hostname for items from multiple hosts
var addHostName = target.host.isRegex;
var getHistory;
if ((from < useTrendsFrom) && self.trends) {
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 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.zabbixAPI.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 = _.map(metricFunctions.getCategories()['Transform'], 'name');
var transFuncDefs = _.filter(target.functions, function(func) {
return _.contains(transformFunctions, func.def.name);
});
var functions = _.map(transFuncDefs, function(func) {
var funcInstance = metricFunctions.createFuncInstance(func.def, func.params);
return funcInstance.bindFunction(DataProcessingService.metricFunctions);
});
// Metric data processing
var dp = timeseries.datapoints;
for (var i = 0; i < functions.length; i++) {
dp = functions[i](dp);
// Use history
getHistory = self.zabbixAPI.getHistory(items, from, to).then(function(history) {
return self.queryProcessor.handleHistory(history, addHostName);
});
}
timeseries.datapoints = dp;
return timeseries;
});
return getHistory.then(function (timeseries_data) {
timeseries_data = _.map(timeseries_data, function (timeseries) {
// Aggregations
var aggregationFunctions = _.map(metricFunctions.getCategories()['Aggregate'], 'name');
var aggFuncDefs = _.filter(target.functions, function(func) {
return _.contains(aggregationFunctions, func.def.name);
});
var functions = _.map(aggFuncDefs, function(func) {
var funcInstance = metricFunctions.createFuncInstance(func.def, func.params);
return funcInstance.bindFunction(DataProcessingService.metricFunctions);
});
var dp = _.map(timeseries_data, 'datapoints');
// Filter only transform functions
var transformFunctions = _.map(metricFunctions.getCategories()['Transform'], 'name');
var transFuncDefs = _.filter(target.functions, function(func) {
return _.contains(transformFunctions, func.def.name);
});
var functions = _.map(transFuncDefs, function(func) {
var funcInstance = metricFunctions.createFuncInstance(func.def, func.params);
return funcInstance.bindFunction(DataProcessingService.metricFunctions);
});
if (functions.length) {
for (var i = 0; i < functions.length; i++) {
dp = functions[i](dp);
}
timeseries_data = {
target: 'agg',
datapoints: dp
};
}
return timeseries_data;
});
// Metric data processing
var dp = timeseries.datapoints;
for (var i = 0; i < functions.length; i++) {
dp = functions[i](dp);
}
timeseries.datapoints = dp;
return timeseries;
});
// Aggregations
var aggregationFunctions = _.map(metricFunctions.getCategories()['Aggregate'], 'name');
var aggFuncDefs = _.filter(target.functions, function(func) {
return _.contains(aggregationFunctions, func.def.name);
});
var functions = _.map(aggFuncDefs, function(func) {
var funcInstance = metricFunctions.createFuncInstance(func.def, func.params);
return funcInstance.bindFunction(DataProcessingService.metricFunctions);
});
var dp = _.map(timeseries_data, 'datapoints');
if (functions.length) {
for (var i = 0; i < functions.length; i++) {
dp = functions[i](dp);
}
timeseries_data = {
target: 'agg',
datapoints: dp
};
}
return timeseries_data;
});
});
}
// Query text data

2
plugins/datasource-zabbix/queryCtrl.js
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@@ -57,7 +57,7 @@ define([
zabbixCache.refresh().then(function () {
$scope.getMetricsFromCache();
$scope.initFilters();
console.log("From server", $scope.metric);
//console.log("From server", $scope.metric);
});
}

17
plugins/datasource-zabbix/queryProcessor.js
View File

@@ -8,7 +8,7 @@ function (angular, _, utils) {
var module = angular.module('grafana.services');
module.factory('QueryProcessor', function() {
module.factory('QueryProcessor', function($q) {
function QueryProcessor(zabbixCacheInstance) {
var self = this;
@@ -16,9 +16,22 @@ function (angular, _, utils) {
this.cache = zabbixCacheInstance;
/**
* Build query - convert target filters to array of Zabbix items
* Build query in asynchronous manner
*/
this.build = function (groupFilter, hostFilter, appFilter, itemFilter) {
if (this.cache._initialized) {
return $q.when(self.buildFromCache(groupFilter, hostFilter, appFilter, itemFilter));
} else {
return this.cache.refresh().then(function() {
return self.buildFromCache(groupFilter, hostFilter, appFilter, itemFilter);
});
}
};
/**
* Build query - convert target filters to array of Zabbix items
*/
this.buildFromCache = function (groupFilter, hostFilter, appFilter, itemFilter) {
// Find items by item names and perform queries
var groups = [];