SharePoint - Search: Code Snippet for using KeywordQuery in Server Object Model

//SPSite object is the parameter
using (KeywordQuery keywordQuery = new KeywordQuery(site))
            {
                keywordQuery.QueryText = string.Format("contentclass:STS_WEB contentclass:STS_SITE");

                var sourceID =contentSourceID;

                //Properties which we want in result
                keywordQuery.SelectProperties.Add("Title");
                keywordQuery.SelectProperties.Add("Path");

                //avoiding duplicate results
                keywordQuery.TrimDuplicates = false;

                //Sorting
                keywordQuery.EnableSorting = true;
                keywordQuery.SortList.Add("Title", SortDirection.Ascending);

                var executor = new SearchExecutor();
                using (new SPMonitoredScope("Workspaces search query"))
                {
                    rtc = executor.ExecuteQuery(workspacesQuery);
                }

                queryResultsTable = rtc.Filter("TableType",  KnownTableTypes.RelevantResults).First();
            }
            //Converting result table into DataTable
            if (queryResultsTable != null && queryResultsTable.RowCount > 0)
            {
                workspacesTable = new DataTable();
                workspacesTable.Load(queryResultsTable, LoadOption.OverwriteChanges);
            }