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Add label_values query to get labels on a particular metric

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This commit is contained in:
Jimmi Dyson 2015-09-30 12:29:53 +01:00
parent 2f55c18d56
commit daee7970f3
1 changed files with 39 additions and 15 deletions
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54
public/app/plugins/datasource/prometheus/datasource.js
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@ -128,7 +128,7 @@ function (angular, _, moment, dateMath) {
};
PrometheusDatasource.prototype.metricFindQuery = function(query) {
var url;
if (!query) { return $q.when([]); }
var interpolated;
try {
@ -138,27 +138,51 @@ function (angular, _, moment, dateMath) {
return $q.reject(err);
}
var metricsQuery = interpolated.match(/^[a-zA-Z_:*][a-zA-Z0-9_:*]*/);
var labelValuesQuery = interpolated.match(/^label_values\((.+)\)/);
var label_values_regex = /^label_values\(([^,]+)(?:,\s*(.+))?\)$/;
var metric_names_regex = /^metrics\((.+)\)$/;
if (labelValuesQuery) {
// return label values
url = '/api/v1/label/' + labelValuesQuery[1] + '/values';
var label_values_query = interpolated.match(label_values_regex);
if (label_values_query) {
if (!label_values_query[2]) {
// return label values globally
var url = '/api/v1/label/' + label_values_query[1] + '/values';
return this._request('GET', url).then(function(result) {
return _.map(result.data.data, function(value) {
return {text: value};
return this._request('GET', url).then(function(result) {
return _.map(result.data.data, function(value) {
return {text: value};
});
});
});
} else if (metricsQuery != null && metricsQuery[0].indexOf('*') >= 0) {
// if query has wildcard character, return metric name list
url = '/api/v1/label/__name__/values';
} else {
var metric_query = 'count(' + label_values_query[1] + ') by (' +
label_values_query[2] + ')';
var url = '/api/v1/query?query=' + encodeURIComponent(metric_query) +
'&time=' + (moment().valueOf() / 1000);
return this._request('GET', url)
.then(function(result) {
if (result.data.data.result.length === 0 ||
_.keys(result.data.data.result[0].metric).length === 0) {
return [];
}
return _.map(result.data.data.result, function(metricValue) {
return {
text: metricValue.metric[label_values_query[2]],
expandable: true
};
});
});
}
}
var metric_names_query = interpolated.match(metric_names_regex);
if (metric_names_query) {
var url = '/api/v1/label/__name__/values';
return this._request('GET', url)
.then(function(result) {
return _.chain(result.data.data)
.filter(function(metricName) {
var r = new RegExp(metricsQuery[0].replace(/\*/g, '.*'));
var r = new RegExp(metric_names_query[1]);
return r.test(metricName);
})
.map(function(matchedMetricName) {
@ -171,7 +195,7 @@ function (angular, _, moment, dateMath) {
});
} else {
// if query contains full metric name, return metric name and label list
url = '/api/v1/query?query=' + encodeURIComponent(interpolated) +
var url = '/api/v1/query?query=' + encodeURIComponent(interpolated) +
'&time=' + (moment().valueOf() / 1000);
return this._request('GET', url)