}
var idx *bitindex.Index
if idx, err = bitindex.LoadIndex(f); err != nil {
cmd.Println("Error loading index file:", err)
os.Exit(1)
}
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("content-type", "application/json")
v := map[string]interface{}{
"domain_size": idx.Domain.Size(),
"table_size": idx.Table.Size(),
"index_sparsity": idx.Sparsity(),
}
if err := json.NewEncoder(w).Encode(v); err != nil {
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprint(w, err)
return
}
})
http.HandleFunc("/query", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("content-type", "application/json")
// Expected up to 4 keys, one for each operator.
q := query{}
Use: "stats <index>",
Short: "Outputs the stats of a bitindex.",
Run: func(cmd *cobra.Command, args []string) {
if len(args) != 1 {
cmd.Println("An index file is required.")
os.Exit(1)
}
f, err := os.Open(args[0])
if err != nil {
cmd.Println("Error opening file:", err)
os.Exit(1)
}
var idx *bitindex.Index
if idx, err = bitindex.LoadIndex(f); err != nil {
cmd.Println("Error loading index file:", err)
os.Exit(1)
}
cmd.Println("Statistics")
cmd.Println("* Domain size:", idx.Domain.Size())
cmd.Println("* Table size:", idx.Table.Size())
cmd.Println("* Sparsity:", idx.Sparsity()*100)
},
}