Conditionally select a field to return in ResponseParser for InfluxDB

This patch also fixes "value[1] || value[0]" to not ignore zeros.
This commit is contained in:
Aleksei Magusev 2018-01-29 16:46:51 +01:00
parent 0573545d5a
commit a101177b55
2 changed files with 39 additions and 4 deletions

View File

@ -11,14 +11,23 @@ export default class ResponseParser {
return [];
}
var influxdb11format = query.toLowerCase().indexOf('show tag values') >= 0;
var res = {};
_.each(influxResults.series, serie => {
_.each(serie.values, value => {
if (_.isArray(value)) {
if (influxdb11format) {
addUnique(res, value[1] || value[0]);
// In general, there are 2 possible shapes for the returned value.
// The first one is a two-element array,
// where the first element is somewhat a metadata value:
// the tag name for SHOW TAG VALUES queries,
// the time field for SELECT queries, etc.
// The second shape is an one-element array,
// that is containing an immediate value.
// For example, SHOW FIELD KEYS queries return such shape.
// Note, pre-0.11 versions return
// the second shape for SHOW TAG VALUES queries
// (while the newer versions—first).
if (value[1] !== undefined) {
addUnique(res, value[1]);
} else {
addUnique(res, value[0]);
}

View File

@ -85,6 +85,32 @@ describe('influxdb response parser', () => {
});
});
describe('SELECT response', () => {
var query = 'SELECT "usage_iowait" FROM "cpu" LIMIT 10';
var response = {
results: [
{
series: [
{
name: 'cpu',
columns: ['time', 'usage_iowait'],
values: [[1488465190006040638, 0.0], [1488465190006040638, 15.0], [1488465190006040638, 20.2]],
},
],
},
],
};
var result = parser.parse(query, response);
it('should return second column', () => {
expect(_.size(result)).toBe(3);
expect(result[0].text).toBe(0.0);
expect(result[1].text).toBe(15.0);
expect(result[2].text).toBe(20.2);
});
});
describe('SHOW FIELD response', () => {
var query = 'SHOW FIELD KEYS FROM "cpu"';
describe('response from 0.10.0', () => {