func handleInteractiveMode() {
unqlParser := tuql.NewTuqlParser(*debugTokens, *debugGrammar, *crashHard)
naivePlanner := naiveplanner.NewNaivePlanner()
naiveOptimizer := naiveoptimizer.NewNaiveOptimizer()
nullOptimizer := nulloptimizer.NewNullOptimizer()
currentUser, err := user.Current()
if err != nil {
log.Printf("Unable to determine home directory, history file disabled")
}
var liner = liner.NewLiner()
defer liner.Close()
LoadHistory(liner, currentUser)
go signalCatcher(liner)
for {
line, err := liner.Prompt("tuq> ")
if err != nil {
break
}
if line == "" {
continue
}
UpdateHistory(liner, currentUser, line)
query, err := unqlParser.Parse(line)
if err != nil {
log.Printf("%v", err)
} else {
if *debugGrammar {
log.Printf("Query is: %#v", query)
}
if query.WasParsedSuccessfully() {
// check to make sure the query is semantically valid
err := query.Validate()
if err != nil {
log.Printf("%v", err)
} else {
plans := naivePlanner.Plan(*query)
if plans != nil {
var plan planner.Plan
if *disableOptimizer {
plan = nullOptimizer.Optimize(plans)
} else {
plan = naiveOptimizer.Optimize(plans)
}
if query.IsExplainOnly {
result := plan.Explain()
if err != nil {
log.Printf("Error: %v", err)
} else {
FormatChannelOutput(result, os.Stdout)
}
} else {
result := plan.Run()
if err != nil {
log.Printf("Error: %v", err)
} else {
FormatChannelOutput(result, os.Stdout)
}
}
}
}
}
}
}
}
func handleStdinMode() {
unqlParser := tuql.NewTuqlParser(*debugTokens, *debugGrammar, *crashHard)
naivePlanner := naiveplanner.NewNaivePlanner()
naiveOptimizer := naiveoptimizer.NewNaiveOptimizer()
nullOptimizer := nulloptimizer.NewNullOptimizer()
reader := bufio.NewReader(os.Stdin)
for {
line, err := reader.ReadString('\n')
if err != nil {
break
}
if line == "" {
continue
}
query, err := unqlParser.Parse(line)
if err != nil {
log.Printf("%v", err)
} else {
if *debugGrammar {
log.Printf("Query is: %#v", query)
}
if query.WasParsedSuccessfully() {
// check to make sure the query is semantically valid
err := query.Validate()
if err != nil {
log.Printf("%v", err)
} else {
plans := naivePlanner.Plan(*query)
if plans != nil {
var plan planner.Plan
if *disableOptimizer {
plan = nullOptimizer.Optimize(plans)
} else {
plan = naiveOptimizer.Optimize(plans)
}
if query.IsExplainOnly {
result := plan.Explain()
if err != nil {
log.Printf("Error: %v", err)
} else {
FormatChannelOutput(result, os.Stdout)
}
} else {
result := plan.Run()
if err != nil {
log.Printf("Error: %v", err)
} else {
FormatChannelOutput(result, os.Stdout)
}
}
}
}
}
}
}
}
func doPost(w http.ResponseWriter, req *http.Request) {
d := json.NewDecoder(req.Body)
request := map[string]interface{}{}
err := d.Decode(&request)
if err != nil {
w.WriteHeader(500)
fmt.Fprintf(w, "Error parsing request JSON: %v", err)
return
}
line, ok := request["query"].(string)
if !ok {
w.WriteHeader(500)
fmt.Fprintf(w, "Error reading query string: %v", err)
return
}
unqlParser := tuql.NewTuqlParser(false, false, *crashHard)
naiveOptimizer := naiveoptimizer.NewNaiveOptimizer()
nullOptimizer := nulloptimizer.NewNullOptimizer()
query, err := unqlParser.Parse(line)
if err != nil {
w.WriteHeader(500)
fmt.Fprintf(w, "Error parsing query string: %v", err)
return
} else {
if query.WasParsedSuccessfully() {
// check to make sure the query is semantically valid
err := query.Validate()
if err != nil {
w.WriteHeader(500)
fmt.Fprintf(w, "Error validating query string: %v", err)
return
} else {
naivePlanner := naiveplanner.NewNaivePlanner()
plans := naivePlanner.Plan(*query)
if plans != nil {
var plan planner.Plan
if *disableOptimizer {
plan = nullOptimizer.Optimize(plans)
} else {
plan = naiveOptimizer.Optimize(plans)
}
if query.IsExplainOnly {
result := plan.Explain()
if err != nil {
w.WriteHeader(500)
fmt.Fprintf(w, "Error explaining query string: %v", err)
return
} else {
FormatChannelOutput(result, w)
}
} else {
result := plan.Run()
if err != nil {
w.WriteHeader(500)
fmt.Fprintf(w, "Error running query string: %v", err)
return
} else {
FormatChannelOutput(result, w)
}
}
}
}
} else {
w.WriteHeader(500)
fmt.Fprintf(w, "Error parsing query string: %v", err)
return
}
}
}