constructor()

in src/Explorer/Explorer.tsx [100:195]
76 lines of code
11 McCabe index (conditional complexity)

  constructor() {
    const startKey: number = TelemetryProcessor.traceStart(Action.InitializeDataExplorer, {
      dataExplorerArea: Constants.Areas.ResourceTree,
    });
    this._isInitializingNotebooks = false;

    this.phoenixClient = new PhoenixClient(userContext?.databaseAccount?.id);
    useNotebook.subscribe(
      () => this.refreshCommandBarButtons(),
      (state) => state.isNotebooksEnabledForAccount,
    );

    this.queriesClient = new QueriesClient(this);

    useSelectedNode.subscribe(() => {
      // Make sure switching tabs restores tabs display
      this.isTabsContentExpanded(false);
    });

    this.isFixedCollectionWithSharedThroughputSupported = ko.computed(() => {
      if (userContext.features.enableFixedCollectionWithSharedThroughput) {
        return true;
      }

      if (!userContext.databaseAccount) {
        return false;
      }

      return isCapabilityEnabled("EnableMongo");
    });

    useTabs.subscribe(
      (openedTabs: TabsBase[]) => {
        if (openedTabs.length === 0) {
          useSelectedNode.getState().setSelectedNode(undefined);
          useCommandBar.getState().setContextButtons([]);
        }
      },
      (state) => state.openedTabs,
    );

    this.isTabsContentExpanded = ko.observable(false);

    $(() => {
      $(document.body).click(() => $(".commandDropdownContainer").hide());
    });

    switch (userContext.apiType) {
      case "Tables":
        this.tableDataClient = new TablesAPIDataClient();
        break;
      case "Cassandra":
        this.tableDataClient = new CassandraAPIDataClient();
        break;
      default:
    }

    this._initSettings();

    TelemetryProcessor.traceSuccess(
      Action.InitializeDataExplorer,
      { dataExplorerArea: Constants.Areas.ResourceTree },
      startKey,
    );

    useNotebook.subscribe(
      async () => this.initiateAndRefreshNotebookList(),
      (state) => [state.isNotebookEnabled, state.isRefreshed],
      shallow,
    );

    this.resourceTree = new ResourceTreeAdapter(this);

    // Override notebook server parameters from URL parameters
    if (
      userContext.features.notebookServerUrl &&
      validateEndpoint(userContext.features.notebookServerUrl, allowedNotebookServerUrls) &&
      userContext.features.notebookServerToken
    ) {
      useNotebook.getState().setNotebookServerInfo({
        notebookServerEndpoint: userContext.features.notebookServerUrl,
        authToken: userContext.features.notebookServerToken,
        forwardingId: undefined,
      });
    }

    if (userContext.features.notebookBasePath) {
      useNotebook.getState().setNotebookBasePath(userContext.features.notebookBasePath);
    }

    if (isFabricMirrored()) {
      useTabs.getState().closeReactTab(ReactTabKind.Home);
    }

    this.refreshExplorer();
  }