Commit 199d0d15 by Alexander Zobnin

graphite: datasource refactor

parent a834812e
import _ from 'lodash';
import gfunc from './gfunc';
import {Parser} from './parser';
export default class GraphiteQuery {
target: any;
functions: any[];
segments: any[];
tags: any[];
error: any;
seriesByTagUsed: boolean;
checkOtherSegmentsIndex: number;
removeTagValue: string;
templateSrv: any;
scopedVars: any;
/** @ngInject */
constructor(target, templateSrv?, scopedVars?) {
this.target = target;
this.parseTarget();
this.removeTagValue = '-- remove tag --';
}
parseTarget() {
this.functions = [];
this.segments = [];
this.error = null;
if (this.target.textEditor) {
return;
}
var parser = new Parser(this.target.target);
var astNode = parser.getAst();
if (astNode === null) {
this.checkOtherSegmentsIndex = 0;
return;
}
if (astNode.type === 'error') {
this.error = astNode.message + " at position: " + astNode.pos;
this.target.textEditor = true;
return;
}
try {
this.parseTargetRecursive(astNode, null, 0);
} catch (err) {
console.log('error parsing target:', err.message);
this.error = err.message;
this.target.textEditor = true;
}
this.checkOtherSegmentsIndex = this.segments.length - 1;
this.checkForSeriesByTag();
}
checkForSeriesByTag() {
let seriesByTagFunc = _.find(this.functions, (func) => func.def.name === 'seriesByTag');
if (seriesByTagFunc) {
this.seriesByTagUsed = true;
seriesByTagFunc.hidden = true;
let tags = this.splitSeriesByTagParams(seriesByTagFunc);
this.tags = tags;
}
}
getSegmentPathUpTo(index) {
var arr = this.segments.slice(0, index);
return _.reduce(arr, function(result, segment) {
return result ? (result + "." + segment.value) : segment.value;
}, "");
}
parseTargetRecursive(astNode, func, index) {
if (astNode === null) {
return null;
}
switch (astNode.type) {
case 'function':
var innerFunc = gfunc.createFuncInstance(astNode.name, { withDefaultParams: false });
_.each(astNode.params, (param, index) => {
this.parseTargetRecursive(param, innerFunc, index);
});
innerFunc.updateText();
this.functions.push(innerFunc);
break;
case 'series-ref':
this.addFunctionParameter(func, astNode.value, index, this.segments.length > 0);
break;
case 'bool':
case 'string':
case 'number':
if ((index-1) >= func.def.params.length) {
throw { message: 'invalid number of parameters to method ' + func.def.name };
}
var shiftBack = this.isShiftParamsBack(func);
this.addFunctionParameter(func, astNode.value, index, shiftBack);
break;
case 'metric':
if (this.segments.length > 0) {
if (astNode.segments.length !== 1) {
throw { message: 'Multiple metric params not supported, use text editor.' };
}
this.addFunctionParameter(func, astNode.segments[0].value, index, true);
break;
}
this.segments = astNode.segments;
}
}
isShiftParamsBack(func) {
return func.def.name !== 'seriesByTag';
}
updateSegmentValue(segment, index) {
this.segments[index].value = segment.value;
}
addSelectMetricSegment() {
this.segments.push({value: "select metric"});
}
addFunction(newFunc) {
this.functions.push(newFunc);
this.moveAliasFuncLast();
}
moveAliasFuncLast() {
var aliasFunc = _.find(this.functions, function(func) {
return func.def.name === 'alias' ||
func.def.name === 'aliasByNode' ||
func.def.name === 'aliasByMetric';
});
if (aliasFunc) {
this.functions = _.without(this.functions, aliasFunc);
this.functions.push(aliasFunc);
}
}
addFunctionParameter(func, value, index, shiftBack) {
if (shiftBack) {
index = Math.max(index - 1, 0);
}
func.params[index] = value;
}
removeFunction(func) {
this.functions = _.without(this.functions, func);
}
updateModelTarget(targets) {
// render query
if (!this.target.textEditor) {
var metricPath = this.getSegmentPathUpTo(this.segments.length);
this.target.target = _.reduce(this.functions, wrapFunction, metricPath);
}
this.updateRenderedTarget(this.target, targets);
// loop through other queries and update targetFull as needed
for (const target of targets || []) {
if (target.refId !== this.target.refId) {
this.updateRenderedTarget(target, targets);
}
}
}
updateRenderedTarget(target, targets) {
// render nested query
var targetsByRefId = _.keyBy(targets, 'refId');
// no references to self
delete targetsByRefId[target.refId];
var nestedSeriesRefRegex = /\#([A-Z])/g;
var targetWithNestedQueries = target.target;
// Keep interpolating until there are no query references
// The reason for the loop is that the referenced query might contain another reference to another query
while (targetWithNestedQueries.match(nestedSeriesRefRegex)) {
var updated = targetWithNestedQueries.replace(nestedSeriesRefRegex, (match, g1) => {
var t = targetsByRefId[g1];
if (!t) {
return match;
}
// no circular references
delete targetsByRefId[g1];
return t.target;
});
if (updated === targetWithNestedQueries) {
break;
}
targetWithNestedQueries = updated;
}
delete target.targetFull;
if (target.target !== targetWithNestedQueries) {
target.targetFull = targetWithNestedQueries;
}
}
splitSeriesByTagParams(func) {
const tagPattern = /([^\!=~]+)([\!=~]+)([^\!=~]+)/;
return _.flatten(_.map(func.params, (param: string) => {
let matches = tagPattern.exec(param);
if (matches) {
let tag = matches.slice(1);
if (tag.length === 3) {
return {
key: tag[0],
operator: tag[1],
value: tag[2]
};
}
}
return [];
}));
}
getSeriesByTagFuncIndex() {
return _.findIndex(this.functions, (func) => func.def.name === 'seriesByTag');
}
getSeriesByTagFunc() {
let seriesByTagFuncIndex = this.getSeriesByTagFuncIndex();
if (seriesByTagFuncIndex >= 0) {
return this.functions[seriesByTagFuncIndex];
} else {
return undefined;
}
}
addTag(tag) {
let newTagParam = renderTagString(tag);
this.getSeriesByTagFunc().params.push(newTagParam);
this.tags.push(tag);
}
removeTag(index) {
this.getSeriesByTagFunc().params.splice(index, 1);
this.tags.splice(index, 1);
}
updateTag(tag, tagIndex) {
this.error = null;
if (tag.key === this.removeTagValue) {
this.removeTag(tagIndex);
return;
}
let newTagParam = renderTagString(tag);
this.getSeriesByTagFunc().params[tagIndex] = newTagParam;
this.tags[tagIndex] = tag;
}
}
function wrapFunction(target, func) {
return func.render(target);
}
function renderTagString(tag) {
return tag.key + tag.operator + tag.value;
}
......@@ -6,11 +6,11 @@
<div ng-hide="ctrl.target.textEditor">
<div class="gf-form-inline">
<div class="gf-form" ng-if="ctrl.seriesByTagUsed">
<div class="gf-form" ng-if="ctrl.queryModel.seriesByTagUsed">
<label class="gf-form-label query-keyword">seriesByTag</label>
</div>
<div ng-repeat="tag in ctrl.tags" class="gf-form">
<div ng-repeat="tag in ctrl.queryModel.tags" class="gf-form">
<gf-form-dropdown model="tag.key" lookup-text="false" allow-custom="false" label-mode="true" css-class="query-segment-key"
get-options="ctrl.getTags()"
on-change="ctrl.tagChanged(tag, $index)">
......@@ -25,7 +25,7 @@
</gf-form-dropdown>
<label class="gf-form-label query-keyword" ng-if="ctrl.showDelimiter($index)">,</label>
</div>
<div ng-if="ctrl.seriesByTagUsed" ng-repeat="segment in ctrl.addTagSegments" role="menuitem" class="gf-form">
<div ng-if="ctrl.queryModel.seriesByTagUsed" ng-repeat="segment in ctrl.addTagSegments" role="menuitem" class="gf-form">
<metric-segment segment="segment"
get-options="ctrl.getTagsAsSegments()"
on-change="ctrl.addNewTag(segment)">
......@@ -36,8 +36,8 @@
<metric-segment segment="segment" get-options="ctrl.getAltSegments($index)" on-change="ctrl.segmentValueChanged(segment, $index)"></metric-segment>
</div>
<div ng-repeat="func in ctrl.functions" class="gf-form">
<span graphite-func-editor class="gf-form-label query-part" ng-hide="ctrl.getSeriesByTagFuncIndex() === $index"></span>
<div ng-repeat="func in ctrl.queryModel.functions" class="gf-form">
<span graphite-func-editor class="gf-form-label query-part" ng-hide="func.hidden"></span>
</div>
<div class="gf-form dropdown">
......
......@@ -3,7 +3,7 @@ import './func_editor';
import _ from 'lodash';
import gfunc from './gfunc';
import {Parser} from './parser';
import GraphiteQuery from './graphite_query';
import {QueryCtrl} from 'app/plugins/sdk';
import appEvents from 'app/core/app_events';
......@@ -12,11 +12,9 @@ const GRAPHITE_TAG_OPERATORS = ['=', '!=', '=~', '!=~'];
export class GraphiteQueryCtrl extends QueryCtrl {
static templateUrl = 'partials/query.editor.html';
functions: any[];
queryModel: GraphiteQuery;
segments: any[];
addTagSegments: any[];
tags: any[];
seriesByTagUsed: boolean;
removeTagValue: string;
/** @ngInject **/
......@@ -25,119 +23,47 @@ export class GraphiteQueryCtrl extends QueryCtrl {
if (this.target) {
this.target.target = this.target.target || '';
this.parseTarget();
this.queryModel = new GraphiteQuery(this.target, templateSrv);
this.buildSegments();
}
this.removeTagValue = '-- remove tag --';
}
toggleEditorMode() {
this.target.textEditor = !this.target.textEditor;
this.parseTarget();
}
parseTarget() {
this.functions = [];
this.segments = [];
this.error = null;
if (this.target.textEditor) {
return;
}
var parser = new Parser(this.target.target);
var astNode = parser.getAst();
if (astNode === null) {
this.checkOtherSegments(0);
return;
this.queryModel.parseTarget();
this.buildSegments();
}
if (astNode.type === 'error') {
this.error = astNode.message + " at position: " + astNode.pos;
this.target.textEditor = true;
return;
}
try {
this.parseTargetRecursive(astNode, null, 0);
} catch (err) {
console.log('error parsing target:', err.message);
this.error = err.message;
this.target.textEditor = true;
}
this.checkOtherSegments(this.segments.length - 1);
this.checkForSeriesByTag();
}
addFunctionParameter(func, value, index, shiftBack) {
if (shiftBack) {
index = Math.max(index - 1, 0);
}
func.params[index] = value;
}
parseTargetRecursive(astNode, func, index) {
if (astNode === null) {
return null;
toggleEditorMode() {
this.target.textEditor = !this.target.textEditor;
this.parseTarget();
}
switch (astNode.type) {
case 'function':
var innerFunc = gfunc.createFuncInstance(astNode.name, { withDefaultParams: false });
_.each(astNode.params, (param, index) => {
this.parseTargetRecursive(param, innerFunc, index);
});
innerFunc.updateText();
this.functions.push(innerFunc);
break;
case 'series-ref':
this.addFunctionParameter(func, astNode.value, index, this.segments.length > 0);
break;
case 'bool':
case 'string':
case 'number':
if ((index-1) >= func.def.params.length) {
throw { message: 'invalid number of parameters to method ' + func.def.name };
}
var shiftBack = this.isShiftParamsBack(func);
this.addFunctionParameter(func, astNode.value, index, shiftBack);
break;
case 'metric':
if (this.segments.length > 0) {
if (astNode.segments.length !== 1) {
throw { message: 'Multiple metric params not supported, use text editor.' };
}
this.addFunctionParameter(func, astNode.segments[0].value, index, true);
break;
}
this.segments = _.map(astNode.segments, segment => {
buildSegments() {
this.segments = _.map(this.queryModel.segments, segment => {
return this.uiSegmentSrv.newSegment(segment);
});
}
}
let checkOtherSegmentsIndex = this.queryModel.checkOtherSegmentsIndex || 0;
this.checkOtherSegments(checkOtherSegmentsIndex);
isShiftParamsBack(func) {
return func.def.name !== 'seriesByTag';
if (this.queryModel.seriesByTagUsed) {
this.fixTagSegments();
}
}
getSegmentPathUpTo(index) {
var arr = this.segments.slice(0, index);
return _.reduce(arr, function(result, segment) {
return result ? (result + "." + segment.value) : segment.value;
}, "");
addSelectMetricSegment() {
this.queryModel.addSelectMetricSegment();
this.segments.push(this.uiSegmentSrv.newSelectMetric());
}
checkOtherSegments(fromIndex) {
if (fromIndex === 0) {
this.segments.push(this.uiSegmentSrv.newSelectMetric());
this.addSelectMetricSegment();
return;
}
var path = this.getSegmentPathUpTo(fromIndex + 1);
var path = this.queryModel.getSegmentPathUpTo(fromIndex + 1);
if (path === "") {
return Promise.resolve();
}
......@@ -145,12 +71,13 @@ export class GraphiteQueryCtrl extends QueryCtrl {
return this.datasource.metricFindQuery(path).then(segments => {
if (segments.length === 0) {
if (path !== '') {
this.queryModel.segments = this.queryModel.segments.splice(0, fromIndex);
this.segments = this.segments.splice(0, fromIndex);
this.segments.push(this.uiSegmentSrv.newSelectMetric());
this.addSelectMetricSegment();
}
} else if (segments[0].expandable) {
if (this.segments.length === fromIndex) {
this.segments.push(this.uiSegmentSrv.newSelectMetric());
this.addSelectMetricSegment();
} else {
return this.checkOtherSegments(fromIndex + 1);
}
......@@ -166,12 +93,8 @@ export class GraphiteQueryCtrl extends QueryCtrl {
});
}
wrapFunction(target, func) {
return func.render(target);
}
getAltSegments(index) {
var query = index === 0 ? '*' : this.getSegmentPathUpTo(index) + '.*';
var query = index === 0 ? '*' : this.queryModel.getSegmentPathUpTo(index) + '.*';
var options = {range: this.panelCtrl.range, requestId: "get-alt-segments"};
return this.datasource.metricFindQuery(query, options).then(segments => {
......@@ -200,9 +123,10 @@ export class GraphiteQueryCtrl extends QueryCtrl {
segmentValueChanged(segment, segmentIndex) {
this.error = null;
this.queryModel.updateSegmentValue(segment, segmentIndex);
if (this.functions.length > 0 && this.functions[0].def.fake) {
this.functions = [];
if (this.queryModel.functions.length > 0 && this.queryModel.functions[0].def.fake) {
this.queryModel.functions = [];
}
if (segment.expandable) {
......@@ -211,81 +135,41 @@ export class GraphiteQueryCtrl extends QueryCtrl {
this.targetChanged();
});
} else {
this.segments = this.segments.splice(0, segmentIndex + 1);
this.spliceSegments(segmentIndex + 1);
}
this.setSegmentFocus(segmentIndex + 1);
this.targetChanged();
}
targetTextChanged() {
this.updateModelTarget();
this.refresh();
}
updateModelTarget() {
// render query
if (!this.target.textEditor) {
var metricPath = this.getSegmentPathUpTo(this.segments.length);
this.target.target = _.reduce(this.functions, this.wrapFunction, metricPath);
}
this.updateRenderedTarget(this.target);
// loop through other queries and update targetFull as needed
for (const target of this.panelCtrl.panel.targets || []) {
if (target.refId !== this.target.refId) {
this.updateRenderedTarget(target);
}
}
spliceSegments(index) {
this.segments = this.segments.splice(0, index);
this.queryModel.segments = this.queryModel.segments.splice(0, index);
}
updateRenderedTarget(target) {
// render nested query
var targetsByRefId = _.keyBy(this.panelCtrl.panel.targets, 'refId');
// no references to self
delete targetsByRefId[target.refId];
var nestedSeriesRefRegex = /\#([A-Z])/g;
var targetWithNestedQueries = target.target;
// Keep interpolating until there are no query references
// The reason for the loop is that the referenced query might contain another reference to another query
while (targetWithNestedQueries.match(nestedSeriesRefRegex)) {
var updated = targetWithNestedQueries.replace(nestedSeriesRefRegex, (match, g1) => {
var t = targetsByRefId[g1];
if (!t) {
return match;
}
// no circular references
delete targetsByRefId[g1];
return t.target;
});
if (updated === targetWithNestedQueries) {
break;
emptySegments() {
this.queryModel.segments = [];
this.segments = [];
}
targetWithNestedQueries = updated;
targetTextChanged() {
this.updateModelTarget();
this.refresh();
}
delete target.targetFull;
if (target.target !== targetWithNestedQueries) {
target.targetFull = targetWithNestedQueries;
}
updateModelTarget() {
this.queryModel.updateModelTarget(this.panelCtrl.panel.targets);
}
targetChanged() {
if (this.error) {
if (this.queryModel.error) {
return;
}
var oldTarget = this.target.target;
var oldTarget = this.queryModel.target.target;
this.updateModelTarget();
if (this.target.target !== oldTarget) {
if (this.queryModel.target !== oldTarget) {
var lastSegment = this.segments.length > 0 ? this.segments[this.segments.length - 1] : {};
if (lastSegment.value !== 'select metric') {
this.panelCtrl.refresh();
......@@ -293,21 +177,14 @@ export class GraphiteQueryCtrl extends QueryCtrl {
}
}
removeFunction(func) {
this.functions = _.without(this.functions, func);
this.targetChanged();
}
addFunction(funcDef) {
var newFunc = gfunc.createFuncInstance(funcDef, { withDefaultParams: true });
newFunc.added = true;
this.functions.push(newFunc);
this.moveAliasFuncLast();
this.queryModel.addFunction(newFunc);
this.smartlyHandleNewAliasByNode(newFunc);
if (this.segments.length === 1 && this.segments[0].fake) {
this.segments = [];
this.emptySegments();
}
if (!newFunc.params.length && newFunc.added) {
......@@ -319,17 +196,9 @@ export class GraphiteQueryCtrl extends QueryCtrl {
}
}
moveAliasFuncLast() {
var aliasFunc = _.find(this.functions, function(func) {
return func.def.name === 'alias' ||
func.def.name === 'aliasByNode' ||
func.def.name === 'aliasByMetric';
});
if (aliasFunc) {
this.functions = _.without(this.functions, aliasFunc);
this.functions.push(aliasFunc);
}
removeFunction(func) {
this.queryModel.removeFunction(func);
this.targetChanged();
}
smartlyHandleNewAliasByNode(func) {
......@@ -347,38 +216,6 @@ export class GraphiteQueryCtrl extends QueryCtrl {
}
}
//////////////////////////////////
// Graphite seriesByTag support //
//////////////////////////////////
checkForSeriesByTag() {
let seriesByTagFunc = _.find(this.functions, (func) => func.def.name === 'seriesByTag');
if (seriesByTagFunc) {
this.seriesByTagUsed = true;
let tags = this.splitSeriesByTagParams(seriesByTagFunc);
this.tags = tags;
this.fixTagSegments();
}
}
splitSeriesByTagParams(func) {
const tagPattern = /([^\!=~]+)([\!=~]+)([^\!=~]+)/;
return _.flatten(_.map(func.params, (param: string) => {
let matches = tagPattern.exec(param);
if (matches) {
let tag = matches.slice(1);
if (tag.length === 3) {
return {
key: tag[0],
operator: tag[1],
value: tag[2]
}
}
}
return [];
}));
}
getTags() {
return this.datasource.getTags().then((values) => {
let altTags = _.map(values, 'text');
......@@ -408,45 +245,20 @@ export class GraphiteQueryCtrl extends QueryCtrl {
}
tagChanged(tag, tagIndex) {
this.error = null;
if (tag.key === this.removeTagValue) {
this.removeTag(tagIndex);
return;
}
let newTagParam = renderTagString(tag);
this.getSeriesByTagFunc().params[tagIndex] = newTagParam;
this.tags[tagIndex] = tag;
this.queryModel.updateTag(tag, tagIndex);
this.targetChanged();
}
getSeriesByTagFuncIndex() {
return _.findIndex(this.functions, (func) => func.def.name === 'seriesByTag');
}
getSeriesByTagFunc() {
let seriesByTagFuncIndex = this.getSeriesByTagFuncIndex();
if (seriesByTagFuncIndex >= 0) {
return this.functions[seriesByTagFuncIndex];
} else {
return undefined;
}
}
addNewTag(segment) {
let newTagKey = segment.value;
let newTag = {key: newTagKey, operator: '=', value: 'select tag value'};
let newTagParam = renderTagString(newTag);
this.getSeriesByTagFunc().params.push(newTagParam);
this.tags.push(newTag);
this.queryModel.addTag(newTag);
this.targetChanged();
this.fixTagSegments();
}
removeTag(index) {
this.getSeriesByTagFunc().params.splice(index, 1);
this.tags.splice(index, 1);
this.queryModel.removeTag(index);
this.targetChanged();
}
......@@ -456,14 +268,10 @@ export class GraphiteQueryCtrl extends QueryCtrl {
}
showDelimiter(index) {
return index !== this.tags.length - 1;
return index !== this.queryModel.tags.length - 1;
}
}
function renderTagString(tag) {
return tag.key + tag.operator + tag.value;
}
function mapToDropdownOptions(results) {
return _.map(results, (value) => {
return {text: value, value: value};
......
......@@ -48,7 +48,7 @@ describe('GraphiteQueryCtrl', function() {
});
it('should parse expression and build function model', function() {
expect(ctx.ctrl.functions.length).to.be(2);
expect(ctx.ctrl.queryModel.functions.length).to.be(2);
});
});
......@@ -61,7 +61,7 @@ describe('GraphiteQueryCtrl', function() {
});
it('should add function with correct node number', function() {
expect(ctx.ctrl.functions[0].params[0]).to.be(2);
expect(ctx.ctrl.queryModel.functions[0].params[0]).to.be(2);
});
it('should update target', function() {
......@@ -99,7 +99,7 @@ describe('GraphiteQueryCtrl', function() {
});
it('should add both series refs as params', function() {
expect(ctx.ctrl.functions[0].params.length).to.be(2);
expect(ctx.ctrl.queryModel.functions[0].params.length).to.be(2);
});
});
......@@ -115,7 +115,7 @@ describe('GraphiteQueryCtrl', function() {
});
it('should add function param', function() {
expect(ctx.ctrl.functions[0].params.length).to.be(1);
expect(ctx.ctrl.queryModel.functions[0].params.length).to.be(1);
});
});
......@@ -131,7 +131,7 @@ describe('GraphiteQueryCtrl', function() {
});
it('should have correct func params', function() {
expect(ctx.ctrl.functions[0].params.length).to.be(1);
expect(ctx.ctrl.queryModel.functions[0].params.length).to.be(1);
});
});
......@@ -219,11 +219,11 @@ describe('GraphiteQueryCtrl', function() {
});
it('should update functions', function() {
expect(ctx.ctrl.getSeriesByTagFuncIndex()).to.be(0);
expect(ctx.ctrl.queryModel.getSeriesByTagFuncIndex()).to.be(0);
});
it('should update seriesByTagUsed flag', function() {
expect(ctx.ctrl.seriesByTagUsed).to.be(true);
expect(ctx.ctrl.queryModel.seriesByTagUsed).to.be(true);
});
it('should update target', function() {
......@@ -247,7 +247,7 @@ describe('GraphiteQueryCtrl', function() {
{key: 'tag1', operator: '=', value: 'value1'},
{key: 'tag2', operator: '!=~', value: 'value2'}
];
expect(ctx.ctrl.tags).to.eql(expected);
expect(ctx.ctrl.queryModel.tags).to.eql(expected);
});
it('should add plus button', function() {
......@@ -267,7 +267,7 @@ describe('GraphiteQueryCtrl', function() {
const expected = [
{key: 'tag1', operator: '=', value: 'select tag value'}
];
expect(ctx.ctrl.tags).to.eql(expected);
expect(ctx.ctrl.queryModel.tags).to.eql(expected);
});
it('should update target', function() {
......@@ -289,7 +289,7 @@ describe('GraphiteQueryCtrl', function() {
{key: 'tag1', operator: '=', value: 'new_value'},
{key: 'tag2', operator: '!=~', value: 'value2'}
];
expect(ctx.ctrl.tags).to.eql(expected);
expect(ctx.ctrl.queryModel.tags).to.eql(expected);
});
it('should update target', function() {
......@@ -310,7 +310,7 @@ describe('GraphiteQueryCtrl', function() {
const expected = [
{key: 'tag2', operator: '!=~', value: 'value2'}
];
expect(ctx.ctrl.tags).to.eql(expected);
expect(ctx.ctrl.queryModel.tags).to.eql(expected);
});
it('should update target', function() {
......
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