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Merge pull request #14169 from grafana/davkal/explore-logging-keep-labels

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Explore: switching to logging should keep prometheus labels in case o…
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David 2018-11-23 11:47:39 +01:00 committed by GitHub
commit 16e7ae4e69
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2 changed files with 24 additions and 8 deletions
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9
public/app/plugins/datasource/logging/language_provider.test.ts
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@ -95,5 +95,14 @@ describe('Query imports', () => {
const result = await instance.importPrometheusQuery('metric{foo="bar",baz="42"}');
expect(result).toEqual('{foo="bar"}');
});
it('returns selector query from selector query with all labels if logging label list is empty', async () => {
const datasourceWithLabels = {
metadataRequest: url => (url === '/api/prom/label' ? { data: { data: [] } } : { data: { data: [] } }),
};
const instance = new LanguageProvider(datasourceWithLabels);
const result = await instance.importPrometheusQuery('metric{foo="bar",baz="42"}');
expect(result).toEqual('{baz="42",foo="bar"}');
});
});
});

23
public/app/plugins/datasource/logging/language_provider.ts
View File

@ -194,17 +194,24 @@ export default class LoggingLanguageProvider extends LanguageProvider {
// Keep only labels that exist on origin and target datasource
await this.start(); // fetches all existing label keys
const commonLabels = {};
for (const key in labels) {
const existingKeys = this.labelKeys[EMPTY_SELECTOR];
if (existingKeys && existingKeys.indexOf(key) > -1) {
// Should we check for label value equality here?
commonLabels[key] = labels[key];
const existingKeys = this.labelKeys[EMPTY_SELECTOR];
let labelsToKeep = {};
if (existingKeys && existingKeys.length > 0) {
// Check for common labels
for (const key in labels) {
if (existingKeys && existingKeys.indexOf(key) > -1) {
// Should we check for label value equality here?
labelsToKeep[key] = labels[key];
}
}
} else {
// Keep all labels by default
labelsToKeep = labels;
}
const labelKeys = Object.keys(commonLabels).sort();
const labelKeys = Object.keys(labelsToKeep).sort();
const cleanSelector = labelKeys
.map(key => `${key}${commonLabels[key].operator}${commonLabels[key].value}`)
.map(key => `${key}${labelsToKeep[key].operator}${labelsToKeep[key].value}`)
.join(',');
return ['{', cleanSelector, '}'].join('');