Move queryDocuments out of DataAccessUtility (#334)

src/Common/dataAccess/queryDocuments.ts

@@ -0,0 +1,34 @@
+import { Queries } from "../Constants";
+import { FeedOptions, ItemDefinition, QueryIterator, Resource } from "@azure/cosmos";
+import { LocalStorageUtility, StorageKey } from "../../Shared/StorageUtility";
+import { client } from "../CosmosClient";
+
+export const queryDocuments = (
+  databaseId: string,
+  containerId: string,
+  query: string,
+  options: FeedOptions
+): QueryIterator<ItemDefinition & Resource> => {
+  options = getCommonQueryOptions(options);
+  return client()
+    .database(databaseId)
+    .container(containerId)
+    .items.query(query, options);
+};
+
+export const getCommonQueryOptions = (options: FeedOptions): FeedOptions => {
+  const storedItemPerPageSetting: number = LocalStorageUtility.getEntryNumber(StorageKey.ActualItemPerPage);
+  options = options || {};
+  options.populateQueryMetrics = true;
+  options.enableScanInQuery = options.enableScanInQuery || true;
+  if (!options.partitionKey) {
+    options.forceQueryPlan = true;
+  }
+  options.maxItemCount =
+    options.maxItemCount ||
+    (storedItemPerPageSetting !== undefined && storedItemPerPageSetting) ||
+    Queries.itemsPerPage;
+  options.maxDegreeOfParallelism = LocalStorageUtility.getEntryNumber(StorageKey.MaxDegreeOfParellism);
+
+  return options;
+};