init: function() {

            var oBookmarkService = sap.ushell.Container.getService("Bookmark");
            var sUrl = "/sap/opu/odata/SAP/ZAPP14_SRV_01";

            var oDataModel = new sap.ui.model.odata.v2.ODataModel(sUrl, {
                json: true
            });
            var oFilters = [new sap.ui.model.Filter("roleName", "EQ", "ZDEVELOPER")];

            oDataModel.read('/roleExist', {
                filters: oFilters,
                success: function(oData, response) {
                    var oFlpModel = new sap.ui.model.json.JSONModel({});
                    oFlpModel.setData(oData.results);
                    sap.ui.getCore().setModel(oFlpModel, "oFlpMdl");
                },
                error: function(oError) {}
            });

            oDataModel.attachBatchRequestCompleted(function(oData) {
                var oRole = sap.ui.getCore().getModel("oFlpMdl").getData(oData);
                if (oRole[0].isExists === "X") {

                    oBookmarkService.countBookmarks("#ZBOOKMARK-display").done(function(iCount) {
                        var oRoleModel2 = new sap.ui.model.json.JSONModel({});
                        oRoleModel2.setData(iCount);

                        switch (iCount) {
                            case (0):
                                oBookmarkService.addBookmark({
                                    title: "Application title",
                                    url: "#ZBOOKMARK-display",
                                    icon: "sap-icon://developer-settings",
                                    info: "Dynamic tile loaded",
                                    subtitle: oRole[0].roleName
                                });
                                break;
                            case (1):
                                return;
                                break;
                            case (2):
                                oBookmarkService.deleteBookmarks("#ZBOOKMARK-display");
                                break;
                            default:
                                return;
                                break;
                        }
                    }).fail(function(sMessage) {
                    });
                } else {
                    oBookmarkService.deleteBookmarks("#ZBOOKMARK-display");
                }

            });
        }