(
upMgrList: SourceManager[]
)
| 275 | } |
| 276 | |
| 277 | private _applyTransform( |
| 278 | upMgrList: SourceManager[] |
| 279 | ): { |
| 280 | sourceList: Source[], |
| 281 | upstreamSignList: string[] |
| 282 | } { |
| 283 | const datasetModel = this._sourceHost as DatasetModel; |
| 284 | const transformOption = datasetModel.get('transform', true); |
| 285 | const fromTransformResult = datasetModel.get('fromTransformResult', true); |
| 286 | |
| 287 | if (__DEV__) { |
| 288 | assert(fromTransformResult != null || transformOption != null); |
| 289 | } |
| 290 | |
| 291 | if (fromTransformResult != null) { |
| 292 | let errMsg = ''; |
| 293 | if (upMgrList.length !== 1) { |
| 294 | if (__DEV__) { |
| 295 | errMsg = 'When using `fromTransformResult`, there should be only one upstream dataset'; |
| 296 | } |
| 297 | doThrow(errMsg); |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | let sourceList: Source[]; |
| 302 | const upSourceList: Source[] = []; |
| 303 | const upstreamSignList: string[] = []; |
| 304 | each(upMgrList, upMgr => { |
| 305 | upMgr.prepareSource(); |
| 306 | const upSource = upMgr.getSource(fromTransformResult || 0); |
| 307 | let errMsg = ''; |
| 308 | if (fromTransformResult != null && !upSource) { |
| 309 | if (__DEV__) { |
| 310 | errMsg = 'Can not retrieve result by `fromTransformResult`: ' + fromTransformResult; |
| 311 | } |
| 312 | doThrow(errMsg); |
| 313 | } |
| 314 | upSourceList.push(upSource); |
| 315 | upstreamSignList.push(upMgr._getVersionSign()); |
| 316 | }); |
| 317 | |
| 318 | if (transformOption) { |
| 319 | sourceList = applyDataTransform( |
| 320 | transformOption, |
| 321 | upSourceList, |
| 322 | { datasetIndex: datasetModel.componentIndex } |
| 323 | ); |
| 324 | } |
| 325 | else if (fromTransformResult != null) { |
| 326 | sourceList = [cloneSourceShallow(upSourceList[0])]; |
| 327 | } |
| 328 | |
| 329 | return { sourceList, upstreamSignList }; |
| 330 | } |
| 331 | |
| 332 | private _isDirty(): boolean { |
| 333 | if (this._dirty) { |
no test coverage detected