Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 | 931x 931x 55x 55x 55x 55x 93x 93x 93x 55x 951x 9653x 23x 23x 23x 23x 41x 41x 41x 23x 951x 951x 23x 951x 23x 41x 41x 8x 9x 9x 9x 9x 11x 11x 11x 9x 11x 11x 21x 3x 11x 9x 11x 9x 9x 11x 11x 11x 17x 3x 3x 2x 9x 9x 120x 120x 120x 120x 11x 11x 11x 1x 119x 26x 26x 26x 26x 26x 14x 14x 14x 12x 20x 15x 15x 1x 5x 1x 1x 10x 10x 10x 9x 9x 9x 30x 28x 28x 28x 11x 21x 21x 9x 9x 14x 39x 22x 22x 34x 34x 34x 34x 34x 1x 33x 1x 119x 908x 10x 18x 1822x | /**
* Calculated Measure Resolver
*
* Handles dependency resolution for calculated measures:
* - Extracts {member} references from calculatedSql templates
* - Builds dependency graph
* - Performs topological sorting to determine calculation order
* - Detects circular dependencies
*/
import type { Cube, Measure } from './types/cube'
/**
* Dependency information for a calculated measure
*/
export interface MeasureDependency {
/** Full measure name (e.g., "Cube.measure" or "measure") */
measureName: string
/** Referenced cube name (null if same cube) */
cubeName: string | null
/** Referenced field name */
fieldName: string
}
/**
* Dependency graph node
*/
interface GraphNode {
/** Full measure identifier */
id: string
/** List of dependencies (what this measure depends on) */
dependencies: Set<string>
/** Incoming edge count for topological sort */
inDegree: number
}
/**
* Calculated Measure Resolver
* Manages dependency resolution for calculated measures
*/
export class CalculatedMeasureResolver {
private dependencyGraph: Map<string, GraphNode>
private cubes: Map<string, Cube>
constructor(cubes: Map<string, Cube> | Cube) {
this.cubes = cubes instanceof Map ? cubes : new Map([[cubes.name, cubes]])
this.dependencyGraph = new Map()
}
/**
* Extract {member} references from calculatedSql template
* Supports both {measure} and {Cube.measure} syntax
*
* @param calculatedSql - Template string with {member} references
* @returns Array of dependency information
*/
extractDependencies(calculatedSql: string): MeasureDependency[] {
// Match {member} or {Cube.member} patterns
const regex = /\{([^}]+)\}/g
const matches = calculatedSql.matchAll(regex)
const dependencies: MeasureDependency[] = []
for (const match of matches) {
const memberRef = match[1].trim()
// Parse member reference
Iif (memberRef.includes('.')) {
// Cross-cube reference: {Cube.measure}
const [cubeName, fieldName] = memberRef.split('.')
dependencies.push({
measureName: memberRef,
cubeName: cubeName.trim(),
fieldName: fieldName.trim()
})
} else {
// Same-cube reference: {measure}
dependencies.push({
measureName: memberRef,
cubeName: null,
fieldName: memberRef
})
}
}
return dependencies
}
/**
* Build dependency graph for all calculated measures in a cube
*
* @param cube - The cube containing measures
*/
buildGraph(cube: Cube): void {
for (const [fieldName, measure] of Object.entries(cube.measures)) {
if (measure.type === 'calculated' && measure.calculatedSql) {
const measureId = `${cube.name}.${fieldName}`
// Extract dependencies
const deps = this.extractDependencies(measure.calculatedSql)
const depSet = new Set<string>()
for (const dep of deps) {
// Resolve to full measure ID
const depCubeName = dep.cubeName || cube.name
const depId = `${depCubeName}.${dep.fieldName}`
depSet.add(depId)
}
// Add to graph
this.dependencyGraph.set(measureId, {
id: measureId,
dependencies: depSet,
inDegree: 0
})
}
}
// Calculate in-degrees
this.calculateInDegrees()
}
/**
* Build dependency graph for multiple cubes
*
* @param cubes - Map of cubes to analyze
*/
buildGraphForMultipleCubes(cubes: Map<string, Cube>): void {
for (const cube of cubes.values()) {
this.buildGraph(cube)
}
}
/**
* Calculate in-degree for each node (number of measures depending on it)
*/
private calculateInDegrees(): void {
// Reset all in-degrees to 0
for (const node of this.dependencyGraph.values()) {
node.inDegree = 0
}
// Count incoming edges
for (const node of this.dependencyGraph.values()) {
for (const depId of node.dependencies) {
const depNode = this.dependencyGraph.get(depId)
if (depNode) {
depNode.inDegree++
}
}
}
}
/**
* Perform topological sort using Kahn's algorithm
* Returns measures in dependency order (dependencies first)
*
* @param measureNames - List of measure names to sort
* @returns Sorted array of measure names
* @throws Error if circular dependency detected
*/
topologicalSort(measureNames: string[]): string[] {
// Build subgraph for requested measures only
const subgraph = new Map<string, GraphNode>()
const queue: string[] = []
const sorted: string[] = []
// Initialize subgraph with dependencies copied from main graph
for (const measureName of measureNames) {
const node = this.dependencyGraph.get(measureName)
Eif (node) {
subgraph.set(measureName, {
id: node.id,
dependencies: new Set(node.dependencies),
inDegree: 0 // Will recalculate below
})
}
}
// Calculate in-degrees within the subgraph
// In-degree = number of dependencies that are IN the subgraph
for (const node of subgraph.values()) {
let inDegree = 0
for (const depId of node.dependencies) {
if (subgraph.has(depId)) {
inDegree++
}
}
node.inDegree = inDegree
}
// Find nodes with no dependencies within the subgraph (in-degree = 0)
// These are ready to be processed immediately
for (const [id, node] of subgraph) {
if (node.inDegree === 0) {
queue.push(id)
}
}
// Process queue using Kahn's algorithm
while (queue.length > 0) {
const currentId = queue.shift()!
sorted.push(currentId)
// Find all nodes in the subgraph that depend on the current node
// and decrease their in-degree since we've now processed their dependency
for (const [nodeId, node] of subgraph) {
if (node.dependencies.has(currentId)) {
node.inDegree--
if (node.inDegree === 0) {
queue.push(nodeId)
}
}
}
}
// Check if all nodes were processed
Iif (sorted.length < subgraph.size) {
const cycle = this.detectCycle()
throw new Error(
`Circular dependency detected in calculated measures: ${cycle ? cycle.join(' -> ') : 'unknown cycle'}`
)
}
return sorted
}
/**
* Detect circular dependencies using DFS
* Returns the cycle path if found, null otherwise
*
* @returns Array representing the cycle, or null
*/
detectCycle(): string[] | null {
const visited = new Set<string>()
const recursionStack = new Set<string>()
const path: string[] = []
for (const nodeId of this.dependencyGraph.keys()) {
Eif (!visited.has(nodeId)) {
const cycle = this.dfs(nodeId, visited, recursionStack, path)
if (cycle) {
return cycle
}
}
}
return null
}
/**
* DFS helper for cycle detection
*/
private dfs(
nodeId: string,
visited: Set<string>,
recursionStack: Set<string>,
path: string[]
): string[] | null {
visited.add(nodeId)
recursionStack.add(nodeId)
path.push(nodeId)
const node = this.dependencyGraph.get(nodeId)
if (!node) {
path.pop()
recursionStack.delete(nodeId)
return null
}
for (const depId of node.dependencies) {
if (!visited.has(depId)) {
const cycle = this.dfs(depId, visited, recursionStack, path)
if (cycle) {
return cycle
}
} else if (recursionStack.has(depId)) {
// Found a cycle
const cycleStart = path.indexOf(depId)
return [...path.slice(cycleStart), depId]
}
}
path.pop()
recursionStack.delete(nodeId)
return null
}
/**
* Get all dependencies for a specific measure (direct and transitive)
*
* @param measureName - Full measure name (e.g., "Cube.measure")
* @returns Set of all dependency measure names
*/
getAllDependencies(measureName: string): Set<string> {
const allDeps = new Set<string>()
const visited = new Set<string>()
const collectDeps = (id: string) => {
if (visited.has(id)) return
visited.add(id)
const node = this.dependencyGraph.get(id)
if (!node) return
for (const depId of node.dependencies) {
allDeps.add(depId)
collectDeps(depId)
}
}
collectDeps(measureName)
return allDeps
}
/**
* Validate that all dependencies exist
*
* @param cube - The cube to validate
* @throws Error if dependencies are missing
*/
validateDependencies(cube: Cube): void {
for (const [fieldName, measure] of Object.entries(cube.measures)) {
if (measure.type === 'calculated' && measure.calculatedSql) {
const deps = this.extractDependencies(measure.calculatedSql)
for (const dep of deps) {
const targetCubeName = dep.cubeName || cube.name
const targetCube = this.cubes.get(targetCubeName)
Iif (!targetCube) {
throw new Error(
`Calculated measure '${cube.name}.${fieldName}' references unknown cube '${targetCubeName}'`
)
}
const targetMeasure = targetCube.measures[dep.fieldName]
if (!targetMeasure) {
throw new Error(
`Calculated measure '${cube.name}.${fieldName}' references unknown measure '${dep.measureName}'`
)
}
// Prevent self-reference
if (targetCubeName === cube.name && dep.fieldName === fieldName) {
throw new Error(
`Calculated measure '${cube.name}.${fieldName}' cannot reference itself`
)
}
}
}
}
}
/**
* Auto-populate dependencies array for calculated measures
* Updates the measure objects with detected dependencies
*
* @param cube - The cube to update
*/
populateDependencies(cube: Cube): void {
for (const [, measure] of Object.entries(cube.measures)) {
if (measure.type === 'calculated' && measure.calculatedSql && !measure.dependencies) {
const deps = this.extractDependencies(measure.calculatedSql)
measure.dependencies = deps.map(d => d.measureName)
}
}
}
/**
* Check if a measure is a calculated measure
*
* @param measure - The measure to check
* @returns True if the measure is calculated
*/
static isCalculatedMeasure(measure: Measure): boolean {
return measure.type === 'calculated' && !!measure.calculatedSql
}
}
|