chore: add file

apis/conversion/src/exportFormat.js

@@ -0,0 +1,46 @@
+/**
+ * Used for exporting and importing properties between backend models. An object that exports to
+ * ExportFormat should put dimensions and measures inside one data group. If an object has two hypercubes
+ * each of the cubes should export dimensions and measures in two separate data groups.
+ * An object that imports from this structure is responsible for putting the existing properties where they should be
+ * in the new model.
+ * @interface ExportFormat
+ * @ignore
+ * @property {(ExportDataDef[])=} data
+ * @property {object=} properties
+ */
+
+/**
+ * @ignore
+ * @interface ExportDataDef
+ * @property {qae.NxDimension[]} dimensions
+ * @property {qae.NxMeasure[]} measures
+ * @property {qae.NxDimension[]} excludedDimensions
+ * @property {qae.NxMeasure[]} excludedMeasures
+ * @property {number[]} interColumnSortOrder
+ */
+
+/**
+ * @ignore
+ * @param {number} nDataGroups
+ * @return {ExportFormat}
+ */
+function createExportFormat(nDataGroups = 1) {
+  const exportFormat = {
+    data: [],
+    properties: {},
+  };
+
+  for (let i = 0; i < nDataGroups; ++i) {
+    exportFormat.data.push({
+      dimensions: [],
+      measures: [],
+      excludedDimensions: [],
+      excludedMeasures: [],
+      interColumnSortOrder: [],
+    });
+  }
+  return exportFormat;
+}
+
+export default createExportFormat;