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nexpie-grafana-theme
Commit 6f2315d5 by David Kaltschmidt
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Moved prom language features to datasource language provider

parent 54a3e2d1
Showing with 685 additions and 679 deletions
public/app/features/explore/Explore.tsx
......@@ -695,11 +695,6 @@ export class Explore extends React.PureComponent<ExploreProps, ExploreState> {
});
}
request = url => {
const { datasource } = this.state;
return datasource.metadataRequest(url);
};
cloneState(): ExploreState {
// Copy state, but copy queries including modifications
return {
......@@ -831,9 +826,9 @@ export class Explore extends React.PureComponent<ExploreProps, ExploreState> {
{datasource && !datasourceError ? (
<div className="explore-container">
<QueryRows
datasource={datasource}
history={history}
queries={queries}
request={this.request}
onAddQueryRow={this.onAddQueryRow}
onChangeQuery={this.onChangeQuery}
onClickHintFix={this.onModifyQueries}
......
public/app/features/explore/PromQueryField.test.tsx
import React from 'react';
import Enzyme, { shallow } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
import Plain from 'slate-plain-serializer';
import PromQueryField, { groupMetricsByPrefix, RECORDING_RULES_GROUP } from './PromQueryField';
Enzyme.configure({ adapter: new Adapter() });
describe('PromQueryField typeahead handling', () => {
const defaultProps = {
request: () => ({ data: { data: [] } }),
};
it('returns default suggestions on emtpty context', () => {
const instance = shallow(<PromQueryField {...defaultProps} />).instance() as PromQueryField;
const result = instance.getTypeahead({ text: '', prefix: '', wrapperClasses: [] });
expect(result.context).toBeUndefined();
expect(result.refresher).toBeUndefined();
expect(result.suggestions.length).toEqual(2);
});
describe('range suggestions', () => {
it('returns range suggestions in range context', () => {
const instance = shallow(<PromQueryField {...defaultProps} />).instance() as PromQueryField;
const result = instance.getTypeahead({ text: '1', prefix: '1', wrapperClasses: ['context-range'] });
expect(result.context).toBe('context-range');
expect(result.refresher).toBeUndefined();
expect(result.suggestions).toEqual([
{
items: [{ label: '1m' }, { label: '5m' }, { label: '10m' }, { label: '30m' }, { label: '1h' }],
label: 'Range vector',
},
]);
});
});
describe('metric suggestions', () => {
it('returns metrics suggestions by default', () => {
const instance = shallow(
<PromQueryField {...defaultProps} metrics={['foo', 'bar']} />
).instance() as PromQueryField;
const result = instance.getTypeahead({ text: 'a', prefix: 'a', wrapperClasses: [] });
expect(result.context).toBeUndefined();
expect(result.refresher).toBeUndefined();
expect(result.suggestions.length).toEqual(2);
});
it('returns default suggestions after a binary operator', () => {
const instance = shallow(
<PromQueryField {...defaultProps} metrics={['foo', 'bar']} />
).instance() as PromQueryField;
const result = instance.getTypeahead({ text: '*', prefix: '', wrapperClasses: [] });
expect(result.context).toBeUndefined();
expect(result.refresher).toBeUndefined();
expect(result.suggestions.length).toEqual(2);
});
});
describe('label suggestions', () => {
it('returns default label suggestions on label context and no metric', () => {
const instance = shallow(<PromQueryField {...defaultProps} />).instance() as PromQueryField;
const value = Plain.deserialize('{}');
const range = value.selection.merge({
anchorOffset: 1,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.getTypeahead({
text: '',
prefix: '',
wrapperClasses: ['context-labels'],
value: valueWithSelection,
});
expect(result.context).toBe('context-labels');
expect(result.suggestions).toEqual([{ items: [{ label: 'job' }, { label: 'instance' }], label: 'Labels' }]);
});
it('returns label suggestions on label context and metric', () => {
const instance = shallow(
<PromQueryField {...defaultProps} labelKeys={{ '{__name__="metric"}': ['bar'] }} />
).instance() as PromQueryField;
const value = Plain.deserialize('metric{}');
const range = value.selection.merge({
anchorOffset: 7,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.getTypeahead({
text: '',
prefix: '',
wrapperClasses: ['context-labels'],
value: valueWithSelection,
});
expect(result.context).toBe('context-labels');
expect(result.suggestions).toEqual([{ items: [{ label: 'bar' }], label: 'Labels' }]);
});
it('returns label suggestions on label context but leaves out labels that already exist', () => {
const instance = shallow(
<PromQueryField
{...defaultProps}
labelKeys={{ '{job1="foo",job2!="foo",job3=~"foo"}': ['bar', 'job1', 'job2', 'job3'] }}
/>
).instance() as PromQueryField;
const value = Plain.deserialize('{job1="foo",job2!="foo",job3=~"foo",}');
const range = value.selection.merge({
anchorOffset: 36,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.getTypeahead({
text: '',
prefix: '',
wrapperClasses: ['context-labels'],
value: valueWithSelection,
});
expect(result.context).toBe('context-labels');
expect(result.suggestions).toEqual([{ items: [{ label: 'bar' }], label: 'Labels' }]);
});
it('returns label value suggestions inside a label value context after a negated matching operator', () => {
const instance = shallow(
<PromQueryField
{...defaultProps}
labelKeys={{ '{}': ['label'] }}
labelValues={{ '{}': { label: ['a', 'b', 'c'] } }}
/>
).instance() as PromQueryField;
const value = Plain.deserialize('{label!=}');
const range = value.selection.merge({ anchorOffset: 8 });
const valueWithSelection = value.change().select(range).value;
const result = instance.getTypeahead({
text: '!=',
prefix: '',
wrapperClasses: ['context-labels'],
labelKey: 'label',
value: valueWithSelection,
});
expect(result.context).toBe('context-label-values');
expect(result.suggestions).toEqual([
{
items: [{ label: 'a' }, { label: 'b' }, { label: 'c' }],
label: 'Label values for "label"',
},
]);
});
it('returns a refresher on label context and unavailable metric', () => {
const instance = shallow(
<PromQueryField {...defaultProps} labelKeys={{ '{__name__="foo"}': ['bar'] }} />
).instance() as PromQueryField;
const value = Plain.deserialize('metric{}');
const range = value.selection.merge({
anchorOffset: 7,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.getTypeahead({
text: '',
prefix: '',
wrapperClasses: ['context-labels'],
value: valueWithSelection,
});
expect(result.context).toBeUndefined();
expect(result.refresher).toBeInstanceOf(Promise);
expect(result.suggestions).toEqual([]);
});
it('returns label values on label context when given a metric and a label key', () => {
const instance = shallow(
<PromQueryField
{...defaultProps}
labelKeys={{ '{__name__="metric"}': ['bar'] }}
labelValues={{ '{__name__="metric"}': { bar: ['baz'] } }}
/>
).instance() as PromQueryField;
const value = Plain.deserialize('metric{bar=ba}');
const range = value.selection.merge({
anchorOffset: 13,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.getTypeahead({
text: '=ba',
prefix: 'ba',
wrapperClasses: ['context-labels'],
labelKey: 'bar',
value: valueWithSelection,
});
expect(result.context).toBe('context-label-values');
expect(result.suggestions).toEqual([{ items: [{ label: 'baz' }], label: 'Label values for "bar"' }]);
});
it('returns label suggestions on aggregation context and metric w/ selector', () => {
const instance = shallow(
<PromQueryField {...defaultProps} labelKeys={{ '{__name__="metric",foo="xx"}': ['bar'] }} />
).instance() as PromQueryField;
const value = Plain.deserialize('sum(metric{foo="xx"}) by ()');
const range = value.selection.merge({
anchorOffset: 26,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.getTypeahead({
text: '',
prefix: '',
wrapperClasses: ['context-aggregation'],
value: valueWithSelection,
});
expect(result.context).toBe('context-aggregation');
expect(result.suggestions).toEqual([{ items: [{ label: 'bar' }], label: 'Labels' }]);
});
it('returns label suggestions on aggregation context and metric w/o selector', () => {
const instance = shallow(
<PromQueryField {...defaultProps} labelKeys={{ '{__name__="metric"}': ['bar'] }} />
).instance() as PromQueryField;
const value = Plain.deserialize('sum(metric) by ()');
const range = value.selection.merge({
anchorOffset: 16,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.getTypeahead({
text: '',
prefix: '',
wrapperClasses: ['context-aggregation'],
value: valueWithSelection,
});
expect(result.context).toBe('context-aggregation');
expect(result.suggestions).toEqual([{ items: [{ label: 'bar' }], label: 'Labels' }]);
});
});
});
import { groupMetricsByPrefix, RECORDING_RULES_GROUP } from './PromQueryField';
describe('groupMetricsByPrefix()', () => {
it('returns an empty group for no metrics', () => {
......
public/app/features/explore/PromQueryField.tsx
import _ from 'lodash';
import moment from 'moment';
import React from 'react';
import { Value } from 'slate';
import Cascader from 'rc-cascader';
import PluginPrism from 'slate-prism';
import Prism from 'prismjs';
import { TypeaheadOutput } from 'app/types/explore';
// dom also includes Element polyfills
import { getNextCharacter, getPreviousCousin } from './utils/dom';
import PrismPromql, { FUNCTIONS } from './slate-plugins/prism/promql';
import BracesPlugin from './slate-plugins/braces';
import RunnerPlugin from './slate-plugins/runner';
import { processLabels, RATE_RANGES, cleanText, parseSelector } from './utils/prometheus';
import TypeaheadField, {
Suggestion,
SuggestionGroup,
TypeaheadInput,
TypeaheadFieldState,
TypeaheadOutput,
} from './QueryField';
const DEFAULT_KEYS = ['job', 'instance'];
const EMPTY_SELECTOR = '{}';
import TypeaheadField, { TypeaheadInput, TypeaheadFieldState } from './QueryField';
const HISTOGRAM_GROUP = '__histograms__';
const HISTOGRAM_SELECTOR = '{le!=""}'; // Returns all timeseries for histograms
const HISTORY_ITEM_COUNT = 5;
const HISTORY_COUNT_CUTOFF = 1000 * 60 * 60 * 24; // 24h
const METRIC_MARK = 'metric';
const PRISM_SYNTAX = 'promql';
export const RECORDING_RULES_GROUP = '__recording_rules__';
export const wrapLabel = (label: string) => ({ label });
export const setFunctionMove = (suggestion: Suggestion): Suggestion => {
suggestion.move = -1;
return suggestion;
};
// Syntax highlighting
Prism.languages[PRISM_SYNTAX] = PrismPromql;
function setPrismTokens(language, field, values, alias = 'variable') {
Prism.languages[language][field] = {
alias,
pattern: new RegExp(`(?:^|\\s)(${values.join('|')})(?:$|\\s)`),
};
}
export function addHistoryMetadata(item: Suggestion, history: any[]): Suggestion {
const cutoffTs = Date.now() - HISTORY_COUNT_CUTOFF;
const historyForItem = history.filter(h => h.ts > cutoffTs && h.query === item.label);
const count = historyForItem.length;
const recent = historyForItem[0];
let hint = `Queried ${count} times in the last 24h.`;
if (recent) {
const lastQueried = moment(recent.ts).fromNow();
hint = `${hint} Last queried ${lastQueried}.`;
}
return {
...item,
documentation: hint,
};
}
export function groupMetricsByPrefix(metrics: string[], delimiter = '_'): CascaderOption[] {
// Filter out recording rules and insert as first option
const ruleRegex = /:\w+:/;
......@@ -133,48 +89,36 @@ interface CascaderOption {
}
interface PromQueryFieldProps {
datasource: any;
error?: string;
hint?: any;
histogramMetrics?: string[];
history?: any[];
initialQuery?: string | null;
labelKeys?: { [index: string]: string[] }; // metric -> [labelKey,...]
labelValues?: { [index: string]: { [index: string]: string[] } }; // metric -> labelKey -> [labelValue,...]
metrics?: string[];
metricsByPrefix?: CascaderOption[];
onClickHintFix?: (action: any) => void;
onPressEnter?: () => void;
onQueryChange?: (value: string, override?: boolean) => void;
portalOrigin?: string;
request?: (url: string) => any;
supportsLogs?: boolean; // To be removed after Logging gets its own query field
}
interface PromQueryFieldState {
histogramMetrics: string[];
labelKeys: { [index: string]: string[] }; // metric -> [labelKey,...]
labelValues: { [index: string]: { [index: string]: string[] } }; // metric -> labelKey -> [labelValue,...]
logLabelOptions: any[];
metrics: string[];
metricsOptions: any[];
metricsByPrefix: CascaderOption[];
syntaxLoaded: boolean;
}
interface PromTypeaheadInput {
text: string;
prefix: string;
wrapperClasses: string[];
labelKey?: string;
value?: Value;
}
class PromQueryField extends React.PureComponent<PromQueryFieldProps, PromQueryFieldState> {
plugins: any[];
languageProvider: any;
constructor(props: PromQueryFieldProps, context) {
super(props, context);
if (props.datasource.languageProvider) {
this.languageProvider = props.datasource.languageProvider;
}
this.plugins = [
BracesPlugin(),
RunnerPlugin({ handler: props.onPressEnter }),
......@@ -185,26 +129,16 @@ class PromQueryField extends React.PureComponent<PromQueryFieldProps, PromQueryF
];
this.state = {
histogramMetrics: props.histogramMetrics || [],
labelKeys: props.labelKeys || {},
labelValues: props.labelValues || {},
logLabelOptions: [],
metrics: props.metrics || [],
metricsByPrefix: props.metricsByPrefix || [],
metricsByPrefix: [],
metricsOptions: [],
syntaxLoaded: false,
};
}
componentDidMount() {
// Temporarily reused by logging
const { supportsLogs } = this.props;
if (supportsLogs) {
this.fetchLogLabels();
} else {
// Usual actions
this.fetchMetricNames();
this.fetchHistogramMetrics();
if (this.languageProvider) {
this.languageProvider.start().then(() => this.onReceiveMetrics());
}
}
......@@ -262,15 +196,19 @@ class PromQueryField extends React.PureComponent<PromQueryFieldProps, PromQueryF
};
onReceiveMetrics = () => {
const { histogramMetrics, metrics, metricsByPrefix } = this.state;
const { histogramMetrics, metrics } = this.languageProvider;
if (!metrics) {
return;
}
// Update global prism config
setPrismTokens(PRISM_SYNTAX, METRIC_MARK, metrics);
Prism.languages[PRISM_SYNTAX] = this.languageProvider.getSyntax();
Prism.languages[PRISM_SYNTAX][METRIC_MARK] = {
alias: 'variable',
pattern: new RegExp(`(?:^|\\s)(${metrics.join('|')})(?:$|\\s)`),
};
// Build metrics tree
const metricsByPrefix = groupMetricsByPrefix(metrics);
const histogramOptions = histogramMetrics.map(hm => ({ label: hm, value: hm }));
const metricsOptions = [
{ label: 'Histograms', value: HISTOGRAM_GROUP, children: histogramOptions },
......@@ -281,6 +219,11 @@ class PromQueryField extends React.PureComponent<PromQueryFieldProps, PromQueryF
};
onTypeahead = (typeahead: TypeaheadInput): TypeaheadOutput => {
if (!this.languageProvider) {
return { suggestions: [] };
}
const { history } = this.props;
const { prefix, text, value, wrapperNode } = typeahead;
// Get DOM-dependent context
......@@ -289,279 +232,20 @@ class PromQueryField extends React.PureComponent<PromQueryFieldProps, PromQueryF
const labelKey = labelKeyNode && labelKeyNode.textContent;
const nextChar = getNextCharacter();
const result = this.getTypeahead({ text, value, prefix, wrapperClasses, labelKey });
const result = this.languageProvider.provideCompletionItems(
{ text, value, prefix, wrapperClasses, labelKey },
{ history }
);
console.log('handleTypeahead', wrapperClasses, text, prefix, nextChar, labelKey, result.context);
return result;
};
// Keep this DOM-free for testing
getTypeahead({ prefix, wrapperClasses, text }: PromTypeaheadInput): TypeaheadOutput {
// Syntax spans have 3 classes by default. More indicate a recognized token
const tokenRecognized = wrapperClasses.length > 3;
// Determine candidates by CSS context
if (_.includes(wrapperClasses, 'context-range')) {
// Suggestions for metric[|]
return this.getRangeTypeahead();
} else if (_.includes(wrapperClasses, 'context-labels')) {
// Suggestions for metric{|} and metric{foo=|}, as well as metric-independent label queries like {|}
return this.getLabelTypeahead.apply(this, arguments);
} else if (_.includes(wrapperClasses, 'context-aggregation')) {
return this.getAggregationTypeahead.apply(this, arguments);
} else if (
// Show default suggestions in a couple of scenarios
(prefix && !tokenRecognized) || // Non-empty prefix, but not inside known token
(prefix === '' && !text.match(/^[\]})\s]+$/)) || // Empty prefix, but not following a closing brace
text.match(/[+\-*/^%]/) // Anything after binary operator
) {
return this.getEmptyTypeahead();
}
return {
suggestions: [],
};
}
getEmptyTypeahead(): TypeaheadOutput {
const { history } = this.props;
const { metrics } = this.state;
const suggestions: SuggestionGroup[] = [];
if (history && history.length > 0) {
const historyItems = _.chain(history)
.uniqBy('query')
.take(HISTORY_ITEM_COUNT)
.map(h => h.query)
.map(wrapLabel)
.map(item => addHistoryMetadata(item, history))
.value();
suggestions.push({
prefixMatch: true,
skipSort: true,
label: 'History',
items: historyItems,
});
}
suggestions.push({
prefixMatch: true,
label: 'Functions',
items: FUNCTIONS.map(setFunctionMove),
});
if (metrics) {
suggestions.push({
label: 'Metrics',
items: metrics.map(wrapLabel),
});
}
return { suggestions };
}
getRangeTypeahead(): TypeaheadOutput {
return {
context: 'context-range',
suggestions: [
{
label: 'Range vector',
items: [...RATE_RANGES].map(wrapLabel),
},
],
};
}
getAggregationTypeahead({ value }: PromTypeaheadInput): TypeaheadOutput {
let refresher: Promise<any> = null;
const suggestions: SuggestionGroup[] = [];
// sum(foo{bar="1"}) by (|)
const line = value.anchorBlock.getText();
const cursorOffset: number = value.anchorOffset;
// sum(foo{bar="1"}) by (
const leftSide = line.slice(0, cursorOffset);
const openParensAggregationIndex = leftSide.lastIndexOf('(');
const openParensSelectorIndex = leftSide.slice(0, openParensAggregationIndex).lastIndexOf('(');
const closeParensSelectorIndex = leftSide.slice(openParensSelectorIndex).indexOf(')') + openParensSelectorIndex;
// foo{bar="1"}
const selectorString = leftSide.slice(openParensSelectorIndex + 1, closeParensSelectorIndex);
const selector = parseSelector(selectorString, selectorString.length - 2).selector;
const labelKeys = this.state.labelKeys[selector];
if (labelKeys) {
suggestions.push({ label: 'Labels', items: labelKeys.map(wrapLabel) });
} else {
refresher = this.fetchSeriesLabels(selector);
}
return {
refresher,
suggestions,
context: 'context-aggregation',
};
}
getLabelTypeahead({ text, wrapperClasses, labelKey, value }: PromTypeaheadInput): TypeaheadOutput {
let context: string;
let refresher: Promise<any> = null;
const suggestions: SuggestionGroup[] = [];
const line = value.anchorBlock.getText();
const cursorOffset: number = value.anchorOffset;
// Get normalized selector
let selector;
let parsedSelector;
try {
parsedSelector = parseSelector(line, cursorOffset);
selector = parsedSelector.selector;
} catch {
selector = EMPTY_SELECTOR;
}
const containsMetric = selector.indexOf('__name__=') > -1;
const existingKeys = parsedSelector ? parsedSelector.labelKeys : [];
if ((text && text.match(/^!?=~?/)) || _.includes(wrapperClasses, 'attr-value')) {
// Label values
if (labelKey && this.state.labelValues[selector] && this.state.labelValues[selector][labelKey]) {
const labelValues = this.state.labelValues[selector][labelKey];
context = 'context-label-values';
suggestions.push({
label: `Label values for "${labelKey}"`,
items: labelValues.map(wrapLabel),
});
}
} else {
// Label keys
const labelKeys = this.state.labelKeys[selector] || (containsMetric ? null : DEFAULT_KEYS);
if (labelKeys) {
const possibleKeys = _.difference(labelKeys, existingKeys);
if (possibleKeys.length > 0) {
context = 'context-labels';
suggestions.push({ label: `Labels`, items: possibleKeys.map(wrapLabel) });
}
}
}
// Query labels for selector
// Temporarily add skip for logging
if (selector && !this.state.labelValues[selector] && !this.props.supportsLogs) {
if (selector === EMPTY_SELECTOR) {
// Query label values for default labels
refresher = Promise.all(DEFAULT_KEYS.map(key => this.fetchLabelValues(key)));
} else {
refresher = this.fetchSeriesLabels(selector, !containsMetric);
}
}
return { context, refresher, suggestions };
}
request = url => {
if (this.props.request) {
return this.props.request(url);
}
return fetch(url);
};
fetchHistogramMetrics() {
this.fetchSeriesLabels(HISTOGRAM_SELECTOR, true, () => {
const histogramSeries = this.state.labelValues[HISTOGRAM_SELECTOR];
if (histogramSeries && histogramSeries['__name__']) {
const histogramMetrics = histogramSeries['__name__'].slice().sort();
this.setState({ histogramMetrics }, this.onReceiveMetrics);
}
});
}
// Temporarily here while reusing this field for logging
async fetchLogLabels() {
const url = '/api/prom/label';
try {
const res = await this.request(url);
const body = await (res.data || res.json());
const labelKeys = body.data.slice().sort();
const labelKeysBySelector = {
...this.state.labelKeys,
[EMPTY_SELECTOR]: labelKeys,
};
const labelValuesByKey = {};
const logLabelOptions = [];
for (const key of labelKeys) {
const valuesUrl = `/api/prom/label/${key}/values`;
const res = await this.request(valuesUrl);
const body = await (res.data || res.json());
const values = body.data.slice().sort();
labelValuesByKey[key] = values;
logLabelOptions.push({
label: key,
value: key,
children: values.map(value => ({ label: value, value })),
});
}
const labelValues = { [EMPTY_SELECTOR]: labelValuesByKey };
this.setState({ labelKeys: labelKeysBySelector, labelValues, logLabelOptions });
} catch (e) {
console.error(e);
}
}
async fetchLabelValues(key: string) {
const url = `/api/v1/label/${key}/values`;
try {
const res = await this.request(url);
const body = await (res.data || res.json());
const exisingValues = this.state.labelValues[EMPTY_SELECTOR];
const values = {
...exisingValues,
[key]: body.data,
};
const labelValues = {
...this.state.labelValues,
[EMPTY_SELECTOR]: values,
};
this.setState({ labelValues });
} catch (e) {
console.error(e);
}
}
async fetchSeriesLabels(name: string, withName?: boolean, callback?: () => void) {
const url = `/api/v1/series?match[]=${name}`;
try {
const res = await this.request(url);
const body = await (res.data || res.json());
const { keys, values } = processLabels(body.data, withName);
const labelKeys = {
...this.state.labelKeys,
[name]: keys,
};
const labelValues = {
...this.state.labelValues,
[name]: values,
};
this.setState({ labelKeys, labelValues }, callback);
} catch (e) {
console.error(e);
}
}
async fetchMetricNames() {
const url = '/api/v1/label/__name__/values';
try {
const res = await this.request(url);
const body = await (res.data || res.json());
const metrics = body.data;
const metricsByPrefix = groupMetricsByPrefix(metrics);
this.setState({ metrics, metricsByPrefix }, this.onReceiveMetrics);
} catch (error) {
console.error(error);
}
}
render() {
const { error, hint, initialQuery, supportsLogs } = this.props;
const { logLabelOptions, metricsOptions, syntaxLoaded } = this.state;
const cleanText = this.languageProvider ? this.languageProvider.cleanText : undefined;
return (
<div className="prom-query-field">
......
public/app/features/explore/QueryField.tsx
......@@ -5,6 +5,8 @@ import { Change, Value } from 'slate';
import { Editor } from 'slate-react';
import Plain from 'slate-plain-serializer';
import { CompletionItem, CompletionItemGroup, TypeaheadOutput } from 'app/types/explore';
import ClearPlugin from './slate-plugins/clear';
import NewlinePlugin from './slate-plugins/newline';
......@@ -13,87 +15,17 @@ import { makeFragment, makeValue } from './Value';
export const TYPEAHEAD_DEBOUNCE = 100;
function getSuggestionByIndex(suggestions: SuggestionGroup[], index: number): Suggestion {
function getSuggestionByIndex(suggestions: CompletionItemGroup[], index: number): CompletionItem {
// Flatten suggestion groups
const flattenedSuggestions = suggestions.reduce((acc, g) => acc.concat(g.items), []);
const correctedIndex = Math.max(index, 0) % flattenedSuggestions.length;
return flattenedSuggestions[correctedIndex];
}
function hasSuggestions(suggestions: SuggestionGroup[]): boolean {
function hasSuggestions(suggestions: CompletionItemGroup[]): boolean {
return suggestions && suggestions.length > 0;
}
export interface Suggestion {
/**
* The label of this completion item. By default
* this is also the text that is inserted when selecting
* this completion.
*/
label: string;
/**
* The kind of this completion item. Based on the kind
* an icon is chosen by the editor.
*/
kind?: string;
/**
* A human-readable string with additional information
* about this item, like type or symbol information.
*/
detail?: string;
/**
* A human-readable string, can be Markdown, that represents a doc-comment.
*/
documentation?: string;
/**
* A string that should be used when comparing this item
* with other items. When `falsy` the `label` is used.
*/
sortText?: string;
/**
* A string that should be used when filtering a set of
* completion items. When `falsy` the `label` is used.
*/
filterText?: string;
/**
* A string or snippet that should be inserted in a document when selecting
* this completion. When `falsy` the `label` is used.
*/
insertText?: string;
/**
* Delete number of characters before the caret position,
* by default the letters from the beginning of the word.
*/
deleteBackwards?: number;
/**
* Number of steps to move after the insertion, can be negative.
*/
move?: number;
}
export interface SuggestionGroup {
/**
* Label that will be displayed for all entries of this group.
*/
label: string;
/**
* List of suggestions of this group.
*/
items: Suggestion[];
/**
* If true, match only by prefix (and not mid-word).
*/
prefixMatch?: boolean;
/**
* If true, do not filter items in this group based on the search.
*/
skipFilter?: boolean;
/**
* If true, do not sort items.
*/
skipSort?: boolean;
}
interface TypeaheadFieldProps {
additionalPlugins?: any[];
cleanText?: (text: string) => string;
......@@ -110,7 +42,7 @@ interface TypeaheadFieldProps {
}
export interface TypeaheadFieldState {
suggestions: SuggestionGroup[];
suggestions: CompletionItemGroup[];
typeaheadContext: string | null;
typeaheadIndex: number;
typeaheadPrefix: string;
......@@ -127,12 +59,6 @@ export interface TypeaheadInput {
wrapperNode: Element;
}
export interface TypeaheadOutput {
context?: string;
refresher?: Promise<{}>;
suggestions: SuggestionGroup[];
}
class QueryField extends React.PureComponent<TypeaheadFieldProps, TypeaheadFieldState> {
menuEl: HTMLElement | null;
plugins: any[];
......@@ -293,7 +219,7 @@ class QueryField extends React.PureComponent<TypeaheadFieldProps, TypeaheadField
}
}, TYPEAHEAD_DEBOUNCE);
applyTypeahead(change: Change, suggestion: Suggestion): Change {
applyTypeahead(change: Change, suggestion: CompletionItem): Change {
const { cleanText, onWillApplySuggestion, syntax } = this.props;
const { typeaheadPrefix, typeaheadText } = this.state;
let suggestionText = suggestion.insertText || suggestion.label;
......@@ -422,7 +348,7 @@ class QueryField extends React.PureComponent<TypeaheadFieldProps, TypeaheadField
}
};
onClickMenu = (item: Suggestion) => {
onClickMenu = (item: CompletionItem) => {
// Manually triggering change
const change = this.applyTypeahead(this.state.value.change(), item);
this.onChange(change);
......
public/app/features/explore/QueryRows.tsx
......@@ -24,8 +24,8 @@ interface QueryRowEventHandlers {
interface QueryRowCommonProps {
className?: string;
datasource: any;
history: HistoryItem[];
request: (url: string) => Promise<any>;
// Temporarily
supportsLogs?: boolean;
transactions: QueryTransaction[];
......@@ -78,7 +78,7 @@ class QueryRow extends PureComponent<QueryRowProps> {
};
render() {
const { history, query, request, supportsLogs, transactions } = this.props;
const { datasource, history, query, supportsLogs, transactions } = this.props;
const transactionWithError = transactions.find(t => t.error !== undefined);
const hint = getFirstHintFromTransactions(transactions);
const queryError = transactionWithError ? transactionWithError.error : null;
......@@ -89,6 +89,7 @@ class QueryRow extends PureComponent<QueryRowProps> {
</div>
<div className="query-row-field">
<QueryField
datasource={datasource}
error={queryError}
hint={hint}
initialQuery={query}
......@@ -96,7 +97,6 @@ class QueryRow extends PureComponent<QueryRowProps> {
onClickHintFix={this.onClickHintFix}
onPressEnter={this.onPressEnter}
onQueryChange={this.onChangeQuery}
request={request}
supportsLogs={supportsLogs}
/>
</div>
......
public/app/features/explore/Typeahead.tsx
import React from 'react';
import Highlighter from 'react-highlight-words';
import { Suggestion, SuggestionGroup } from './QueryField';
import { CompletionItem, CompletionItemGroup } from 'app/types/explore';
function scrollIntoView(el: HTMLElement) {
if (!el || !el.offsetParent) {
......@@ -15,12 +15,12 @@ function scrollIntoView(el: HTMLElement) {
interface TypeaheadItemProps {
isSelected: boolean;
item: Suggestion;
item: CompletionItem;
onClickItem: (Suggestion) => void;
prefix?: string;
}
class TypeaheadItem extends React.PureComponent<TypeaheadItemProps, {}> {
class TypeaheadItem extends React.PureComponent<TypeaheadItemProps> {
el: HTMLElement;
componentDidUpdate(prevProps) {
......@@ -53,14 +53,14 @@ class TypeaheadItem extends React.PureComponent<TypeaheadItemProps, {}> {
}
interface TypeaheadGroupProps {
items: Suggestion[];
items: CompletionItem[];
label: string;
onClickItem: (Suggestion) => void;
selected: Suggestion;
onClickItem: (CompletionItem) => void;
selected: CompletionItem;
prefix?: string;
}
class TypeaheadGroup extends React.PureComponent<TypeaheadGroupProps, {}> {
class TypeaheadGroup extends React.PureComponent<TypeaheadGroupProps> {
render() {
const { items, label, selected, onClickItem, prefix } = this.props;
return (
......@@ -85,13 +85,13 @@ class TypeaheadGroup extends React.PureComponent<TypeaheadGroupProps, {}> {
}
interface TypeaheadProps {
groupedItems: SuggestionGroup[];
groupedItems: CompletionItemGroup[];
menuRef: any;
selectedItem: Suggestion | null;
selectedItem: CompletionItem | null;
onClickItem: (Suggestion) => void;
prefix?: string;
}
class Typeahead extends React.PureComponent<TypeaheadProps, {}> {
class Typeahead extends React.PureComponent<TypeaheadProps> {
render() {
const { groupedItems, menuRef, selectedItem, onClickItem, prefix } = this.props;
return (
......
public/app/plugins/datasource/prometheus/datasource.ts
......@@ -5,6 +5,7 @@ import kbn from 'app/core/utils/kbn';
import * as dateMath from 'app/core/utils/datemath';
import PrometheusMetricFindQuery from './metric_find_query';
import { ResultTransformer } from './result_transformer';
import PrometheusLanguageProvider from './language_provider';
import { BackendSrv } from 'app/core/services/backend_srv';
import addLabelToQuery from './add_label_to_query';
......@@ -60,6 +61,7 @@ export class PrometheusDatasource {
interval: string;
queryTimeout: string;
httpMethod: string;
languageProvider: PrometheusLanguageProvider;
resultTransformer: ResultTransformer;
/** @ngInject */
......@@ -76,6 +78,7 @@ export class PrometheusDatasource {
this.httpMethod = instanceSettings.jsonData.httpMethod || 'GET';
this.resultTransformer = new ResultTransformer(templateSrv);
this.ruleMappings = {};
this.languageProvider = new PrometheusLanguageProvider(this);
}
init() {
......
public/app/plugins/datasource/prometheus/language_provider.ts 0 → 100644
import _ from 'lodash';
import moment from 'moment';
import {
CompletionItem,
CompletionItemGroup,
LanguageProvider,
TypeaheadInput,
TypeaheadOutput,
} from 'app/types/explore';
import { parseSelector, processLabels, RATE_RANGES } from './language_utils';
import PromqlSyntax, { FUNCTIONS } from './promql';
const DEFAULT_KEYS = ['job', 'instance'];
const EMPTY_SELECTOR = '{}';
const HISTOGRAM_SELECTOR = '{le!=""}'; // Returns all timeseries for histograms
const HISTORY_ITEM_COUNT = 5;
const HISTORY_COUNT_CUTOFF = 1000 * 60 * 60 * 24; // 24h
const wrapLabel = (label: string) => ({ label });
const setFunctionMove = (suggestion: CompletionItem): CompletionItem => {
suggestion.move = -1;
return suggestion;
};
export function addHistoryMetadata(item: CompletionItem, history: any[]): CompletionItem {
const cutoffTs = Date.now() - HISTORY_COUNT_CUTOFF;
const historyForItem = history.filter(h => h.ts > cutoffTs && h.query === item.label);
const count = historyForItem.length;
const recent = historyForItem[0];
let hint = `Queried ${count} times in the last 24h.`;
if (recent) {
const lastQueried = moment(recent.ts).fromNow();
hint = `${hint} Last queried ${lastQueried}.`;
}
return {
...item,
documentation: hint,
};
}
export default class PromQlLanguageProvider extends LanguageProvider {
histogramMetrics?: string[];
labelKeys?: { [index: string]: string[] }; // metric -> [labelKey,...]
labelValues?: { [index: string]: { [index: string]: string[] } }; // metric -> labelKey -> [labelValue,...]
metrics?: string[];
logLabelOptions: any[];
supportsLogs?: boolean;
started: boolean;
constructor(datasource: any, initialValues?: any) {
super();
this.datasource = datasource;
this.histogramMetrics = [];
this.labelKeys = {};
this.labelValues = {};
this.metrics = [];
this.supportsLogs = false;
this.started = false;
Object.assign(this, initialValues);
}
// Strip syntax chars
cleanText = s => s.replace(/[{}[\]="(),!~+\-*/^%]/g, '').trim();
getSyntax() {
return PromqlSyntax;
}
request = url => {
return this.datasource.metadataRequest(url);
};
start = () => {
if (!this.started) {
this.started = true;
return Promise.all([this.fetchMetricNames(), this.fetchHistogramMetrics()]);
}
return Promise.resolve([]);
};
// Keep this DOM-free for testing
provideCompletionItems({ prefix, wrapperClasses, text }: TypeaheadInput, context?: any): TypeaheadOutput {
// Syntax spans have 3 classes by default. More indicate a recognized token
const tokenRecognized = wrapperClasses.length > 3;
// Determine candidates by CSS context
if (_.includes(wrapperClasses, 'context-range')) {
// Suggestions for metric[|]
return this.getRangeCompletionItems();
} else if (_.includes(wrapperClasses, 'context-labels')) {
// Suggestions for metric{|} and metric{foo=|}, as well as metric-independent label queries like {|}
return this.getLabelCompletionItems.apply(this, arguments);
} else if (_.includes(wrapperClasses, 'context-aggregation')) {
return this.getAggregationCompletionItems.apply(this, arguments);
} else if (
// Show default suggestions in a couple of scenarios
(prefix && !tokenRecognized) || // Non-empty prefix, but not inside known token
(prefix === '' && !text.match(/^[\]})\s]+$/)) || // Empty prefix, but not following a closing brace
text.match(/[+\-*/^%]/) // Anything after binary operator
) {
return this.getEmptyCompletionItems(context || {});
}
return {
suggestions: [],
};
}
getEmptyCompletionItems(context: any): TypeaheadOutput {
const { history } = context;
const { metrics } = this;
const suggestions: CompletionItemGroup[] = [];
if (history && history.length > 0) {
const historyItems = _.chain(history)
.uniqBy('query')
.take(HISTORY_ITEM_COUNT)
.map(h => h.query)
.map(wrapLabel)
.map(item => addHistoryMetadata(item, history))
.value();
suggestions.push({
prefixMatch: true,
skipSort: true,
label: 'History',
items: historyItems,
});
}
suggestions.push({
prefixMatch: true,
label: 'Functions',
items: FUNCTIONS.map(setFunctionMove),
});
if (metrics) {
suggestions.push({
label: 'Metrics',
items: metrics.map(wrapLabel),
});
}
return { suggestions };
}
getRangeCompletionItems(): TypeaheadOutput {
return {
context: 'context-range',
suggestions: [
{
label: 'Range vector',
items: [...RATE_RANGES].map(wrapLabel),
},
],
};
}
getAggregationCompletionItems({ value }: TypeaheadInput): TypeaheadOutput {
let refresher: Promise<any> = null;
const suggestions: CompletionItemGroup[] = [];
// sum(foo{bar="1"}) by (|)
const line = value.anchorBlock.getText();
const cursorOffset: number = value.anchorOffset;
// sum(foo{bar="1"}) by (
const leftSide = line.slice(0, cursorOffset);
const openParensAggregationIndex = leftSide.lastIndexOf('(');
const openParensSelectorIndex = leftSide.slice(0, openParensAggregationIndex).lastIndexOf('(');
const closeParensSelectorIndex = leftSide.slice(openParensSelectorIndex).indexOf(')') + openParensSelectorIndex;
// foo{bar="1"}
const selectorString = leftSide.slice(openParensSelectorIndex + 1, closeParensSelectorIndex);
const selector = parseSelector(selectorString, selectorString.length - 2).selector;
const labelKeys = this.labelKeys[selector];
if (labelKeys) {
suggestions.push({ label: 'Labels', items: labelKeys.map(wrapLabel) });
} else {
refresher = this.fetchSeriesLabels(selector);
}
return {
refresher,
suggestions,
context: 'context-aggregation',
};
}
getLabelCompletionItems({ text, wrapperClasses, labelKey, value }: TypeaheadInput): TypeaheadOutput {
let context: string;
let refresher: Promise<any> = null;
const suggestions: CompletionItemGroup[] = [];
const line = value.anchorBlock.getText();
const cursorOffset: number = value.anchorOffset;
// Get normalized selector
let selector;
let parsedSelector;
try {
parsedSelector = parseSelector(line, cursorOffset);
selector = parsedSelector.selector;
} catch {
selector = EMPTY_SELECTOR;
}
const containsMetric = selector.indexOf('__name__=') > -1;
const existingKeys = parsedSelector ? parsedSelector.labelKeys : [];
if ((text && text.match(/^!?=~?/)) || _.includes(wrapperClasses, 'attr-value')) {
// Label values
if (labelKey && this.labelValues[selector] && this.labelValues[selector][labelKey]) {
const labelValues = this.labelValues[selector][labelKey];
context = 'context-label-values';
suggestions.push({
label: `Label values for "${labelKey}"`,
items: labelValues.map(wrapLabel),
});
}
} else {
// Label keys
const labelKeys = this.labelKeys[selector] || (containsMetric ? null : DEFAULT_KEYS);
if (labelKeys) {
const possibleKeys = _.difference(labelKeys, existingKeys);
if (possibleKeys.length > 0) {
context = 'context-labels';
suggestions.push({ label: `Labels`, items: possibleKeys.map(wrapLabel) });
}
}
}
// Query labels for selector
// Temporarily add skip for logging
if (selector && !this.labelValues[selector] && !this.supportsLogs) {
if (selector === EMPTY_SELECTOR) {
// Query label values for default labels
refresher = Promise.all(DEFAULT_KEYS.map(key => this.fetchLabelValues(key)));
} else {
refresher = this.fetchSeriesLabels(selector, !containsMetric);
}
}
return { context, refresher, suggestions };
}
async fetchMetricNames() {
const url = '/api/v1/label/__name__/values';
try {
const res = await this.request(url);
const body = await (res.data || res.json());
this.metrics = body.data;
} catch (error) {
console.error(error);
}
}
async fetchHistogramMetrics() {
await this.fetchSeriesLabels(HISTOGRAM_SELECTOR, true);
const histogramSeries = this.labelValues[HISTOGRAM_SELECTOR];
if (histogramSeries && histogramSeries['__name__']) {
this.histogramMetrics = histogramSeries['__name__'].slice().sort();
}
}
// Temporarily here while reusing this field for logging
async fetchLogLabels() {
const url = '/api/prom/label';
try {
const res = await this.request(url);
const body = await (res.data || res.json());
const labelKeys = body.data.slice().sort();
const labelKeysBySelector = {
...this.labelKeys,
[EMPTY_SELECTOR]: labelKeys,
};
const labelValuesByKey = {};
this.logLabelOptions = [];
for (const key of labelKeys) {
const valuesUrl = `/api/prom/label/${key}/values`;
const res = await this.request(valuesUrl);
const body = await (res.data || res.json());
const values = body.data.slice().sort();
labelValuesByKey[key] = values;
this.logLabelOptions.push({
label: key,
value: key,
children: values.map(value => ({ label: value, value })),
});
}
this.labelValues = { [EMPTY_SELECTOR]: labelValuesByKey };
this.labelKeys = labelKeysBySelector;
} catch (e) {
console.error(e);
}
}
async fetchLabelValues(key: string) {
const url = `/api/v1/label/${key}/values`;
try {
const res = await this.request(url);
const body = await (res.data || res.json());
const exisingValues = this.labelValues[EMPTY_SELECTOR];
const values = {
...exisingValues,
[key]: body.data,
};
this.labelValues = {
...this.labelValues,
[EMPTY_SELECTOR]: values,
};
} catch (e) {
console.error(e);
}
}
async fetchSeriesLabels(name: string, withName?: boolean) {
const url = `/api/v1/series?match[]=${name}`;
try {
const res = await this.request(url);
const body = await (res.data || res.json());
const { keys, values } = processLabels(body.data, withName);
this.labelKeys = {
...this.labelKeys,
[name]: keys,
};
this.labelValues = {
...this.labelValues,
[name]: values,
};
} catch (e) {
console.error(e);
}
}
}
public/app/features/explore/utils/prometheus.ts → public/app/plugins/datasource/prometheus/language_utils.ts
......@@ -23,9 +23,6 @@ export function processLabels(labels, withName = false) {
return { values, keys: Object.keys(values) };
}
// Strip syntax chars
export const cleanText = s => s.replace(/[{}[\]="(),!~+\-*/^%]/g, '').trim();
// const cleanSelectorRegexp = /\{(\w+="[^"\n]*?")(,\w+="[^"\n]*?")*\}/;
const selectorRegexp = /\{[^}]*?\}/;
const labelRegexp = /\b(\w+)(!?=~?)("[^"\n]*?")/g;
......
public/app/plugins/datasource/prometheus/specs/language_provider.test.ts 0 → 100644
import Plain from 'slate-plain-serializer';
import LanguageProvider from '../language_provider';
describe('Language completion provider', () => {
const datasource = {
metadataRequest: () => ({ data: { data: [] } }),
};
it('returns default suggestions on emtpty context', () => {
const instance = new LanguageProvider(datasource);
const result = instance.provideCompletionItems({ text: '', prefix: '', wrapperClasses: [] });
expect(result.context).toBeUndefined();
expect(result.refresher).toBeUndefined();
expect(result.suggestions.length).toEqual(2);
});
describe('range suggestions', () => {
it('returns range suggestions in range context', () => {
const instance = new LanguageProvider(datasource);
const result = instance.provideCompletionItems({ text: '1', prefix: '1', wrapperClasses: ['context-range'] });
expect(result.context).toBe('context-range');
expect(result.refresher).toBeUndefined();
expect(result.suggestions).toEqual([
{
items: [{ label: '1m' }, { label: '5m' }, { label: '10m' }, { label: '30m' }, { label: '1h' }],
label: 'Range vector',
},
]);
});
});
describe('metric suggestions', () => {
it('returns metrics suggestions by default', () => {
const instance = new LanguageProvider(datasource, { metrics: ['foo', 'bar'] });
const result = instance.provideCompletionItems({ text: 'a', prefix: 'a', wrapperClasses: [] });
expect(result.context).toBeUndefined();
expect(result.refresher).toBeUndefined();
expect(result.suggestions.length).toEqual(2);
});
it('returns default suggestions after a binary operator', () => {
const instance = new LanguageProvider(datasource, { metrics: ['foo', 'bar'] });
const result = instance.provideCompletionItems({ text: '*', prefix: '', wrapperClasses: [] });
expect(result.context).toBeUndefined();
expect(result.refresher).toBeUndefined();
expect(result.suggestions.length).toEqual(2);
});
});
describe('label suggestions', () => {
it('returns default label suggestions on label context and no metric', () => {
const instance = new LanguageProvider(datasource);
const value = Plain.deserialize('{}');
const range = value.selection.merge({
anchorOffset: 1,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.provideCompletionItems({
text: '',
prefix: '',
wrapperClasses: ['context-labels'],
value: valueWithSelection,
});
expect(result.context).toBe('context-labels');
expect(result.suggestions).toEqual([{ items: [{ label: 'job' }, { label: 'instance' }], label: 'Labels' }]);
});
it('returns label suggestions on label context and metric', () => {
const instance = new LanguageProvider(datasource, { labelKeys: { '{__name__="metric"}': ['bar'] } });
const value = Plain.deserialize('metric{}');
const range = value.selection.merge({
anchorOffset: 7,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.provideCompletionItems({
text: '',
prefix: '',
wrapperClasses: ['context-labels'],
value: valueWithSelection,
});
expect(result.context).toBe('context-labels');
expect(result.suggestions).toEqual([{ items: [{ label: 'bar' }], label: 'Labels' }]);
});
it('returns label suggestions on label context but leaves out labels that already exist', () => {
const instance = new LanguageProvider(datasource, {
labelKeys: { '{job1="foo",job2!="foo",job3=~"foo"}': ['bar', 'job1', 'job2', 'job3'] },
});
const value = Plain.deserialize('{job1="foo",job2!="foo",job3=~"foo",}');
const range = value.selection.merge({
anchorOffset: 36,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.provideCompletionItems({
text: '',
prefix: '',
wrapperClasses: ['context-labels'],
value: valueWithSelection,
});
expect(result.context).toBe('context-labels');
expect(result.suggestions).toEqual([{ items: [{ label: 'bar' }], label: 'Labels' }]);
});
it('returns label value suggestions inside a label value context after a negated matching operator', () => {
const instance = new LanguageProvider(datasource, {
labelKeys: { '{}': ['label'] },
labelValues: { '{}': { label: ['a', 'b', 'c'] } },
});
const value = Plain.deserialize('{label!=}');
const range = value.selection.merge({ anchorOffset: 8 });
const valueWithSelection = value.change().select(range).value;
const result = instance.provideCompletionItems({
text: '!=',
prefix: '',
wrapperClasses: ['context-labels'],
labelKey: 'label',
value: valueWithSelection,
});
expect(result.context).toBe('context-label-values');
expect(result.suggestions).toEqual([
{
items: [{ label: 'a' }, { label: 'b' }, { label: 'c' }],
label: 'Label values for "label"',
},
]);
});
it('returns a refresher on label context and unavailable metric', () => {
const instance = new LanguageProvider(datasource, { labelKeys: { '{__name__="foo"}': ['bar'] } });
const value = Plain.deserialize('metric{}');
const range = value.selection.merge({
anchorOffset: 7,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.provideCompletionItems({
text: '',
prefix: '',
wrapperClasses: ['context-labels'],
value: valueWithSelection,
});
expect(result.context).toBeUndefined();
expect(result.refresher).toBeInstanceOf(Promise);
expect(result.suggestions).toEqual([]);
});
it('returns label values on label context when given a metric and a label key', () => {
const instance = new LanguageProvider(datasource, {
labelKeys: { '{__name__="metric"}': ['bar'] },
labelValues: { '{__name__="metric"}': { bar: ['baz'] } },
});
const value = Plain.deserialize('metric{bar=ba}');
const range = value.selection.merge({
anchorOffset: 13,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.provideCompletionItems({
text: '=ba',
prefix: 'ba',
wrapperClasses: ['context-labels'],
labelKey: 'bar',
value: valueWithSelection,
});
expect(result.context).toBe('context-label-values');
expect(result.suggestions).toEqual([{ items: [{ label: 'baz' }], label: 'Label values for "bar"' }]);
});
it('returns label suggestions on aggregation context and metric w/ selector', () => {
const instance = new LanguageProvider(datasource, { labelKeys: { '{__name__="metric",foo="xx"}': ['bar'] } });
const value = Plain.deserialize('sum(metric{foo="xx"}) by ()');
const range = value.selection.merge({
anchorOffset: 26,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.provideCompletionItems({
text: '',
prefix: '',
wrapperClasses: ['context-aggregation'],
value: valueWithSelection,
});
expect(result.context).toBe('context-aggregation');
expect(result.suggestions).toEqual([{ items: [{ label: 'bar' }], label: 'Labels' }]);
});
it('returns label suggestions on aggregation context and metric w/o selector', () => {
const instance = new LanguageProvider(datasource, { labelKeys: { '{__name__="metric"}': ['bar'] } });
const value = Plain.deserialize('sum(metric) by ()');
const range = value.selection.merge({
anchorOffset: 16,
});
const valueWithSelection = value.change().select(range).value;
const result = instance.provideCompletionItems({
text: '',
prefix: '',
wrapperClasses: ['context-aggregation'],
value: valueWithSelection,
});
expect(result.context).toBe('context-aggregation');
expect(result.suggestions).toEqual([{ items: [{ label: 'bar' }], label: 'Labels' }]);
});
});
});
public/app/features/explore/utils/prometheus.test.ts → public/app/plugins/datasource/prometheus/specs/language_utils.test.ts
import { parseSelector } from './prometheus';
import { parseSelector } from '../language_utils';
describe('parseSelector()', () => {
let parsed;
......
public/app/types/explore.ts
import { Value } from 'slate';
export interface CompletionItem {
/**
* The label of this completion item. By default
* this is also the text that is inserted when selecting
* this completion.
*/
label: string;
/**
* The kind of this completion item. Based on the kind
* an icon is chosen by the editor.
*/
kind?: string;
/**
* A human-readable string with additional information
* about this item, like type or symbol information.
*/
detail?: string;
/**
* A human-readable string, can be Markdown, that represents a doc-comment.
*/
documentation?: string;
/**
* A string that should be used when comparing this item
* with other items. When `falsy` the `label` is used.
*/
sortText?: string;
/**
* A string that should be used when filtering a set of
* completion items. When `falsy` the `label` is used.
*/
filterText?: string;
/**
* A string or snippet that should be inserted in a document when selecting
* this completion. When `falsy` the `label` is used.
*/
insertText?: string;
/**
* Delete number of characters before the caret position,
* by default the letters from the beginning of the word.
*/
deleteBackwards?: number;
/**
* Number of steps to move after the insertion, can be negative.
*/
move?: number;
}
export interface CompletionItemGroup {
/**
* Label that will be displayed for all entries of this group.
*/
label: string;
/**
* List of suggestions of this group.
*/
items: CompletionItem[];
/**
* If true, match only by prefix (and not mid-word).
*/
prefixMatch?: boolean;
/**
* If true, do not filter items in this group based on the search.
*/
skipFilter?: boolean;
/**
* If true, do not sort items.
*/
skipSort?: boolean;
}
interface ExploreDatasource {
value: string;
label: string;
......@@ -8,6 +80,26 @@ export interface HistoryItem {
query: string;
}
export abstract class LanguageProvider {
datasource: any;
request: (url) => Promise<any>;
start: () => Promise<any>;
}
export interface TypeaheadInput {
text: string;
prefix: string;
wrapperClasses: string[];
labelKey?: string;
value?: Value;
}
export interface TypeaheadOutput {
context?: string;
refresher?: Promise<{}>;
suggestions: CompletionItemGroup[];
}
export interface Range {
from: string;
to: string;
......
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