func (api *Api) ServeV1Shape(w http.ResponseWriter, r *http.Request, params httprouter.Params) int {
var ses graph.HttpSession
switch params.ByName("query_lang") {
case "gremlin":
ses = gremlin.NewGremlinSession(api.ts, api.config.GremlinTimeout, false)
case "mql":
ses = mql.NewMqlSession(api.ts)
default:
return FormatJson400(w, "Need a query language.")
}
var err error
bodyBytes, err := ioutil.ReadAll(r.Body)
if err != nil {
return FormatJson400(w, err)
}
code := string(bodyBytes)
result, err := ses.InputParses(code)
switch result {
case graph.Parsed:
var output []byte
var err error
output, err = GetQueryShape(code, ses)
if err != nil {
return FormatJson400(w, err)
}
fmt.Fprint(w, string(output))
return 200
case graph.ParseFail:
return FormatJson400(w, err)
default:
return FormatJsonError(w, 500, "Incomplete data?")
}
http.Error(w, "", http.StatusNotFound)
return http.StatusNotFound
}
func CayleyRepl(ts graph.TripleStore, queryLanguage string, config *cfg.CayleyConfig) {
var ses graph.Session
switch queryLanguage {
case "sexp":
ses = sexp.NewSexpSession(ts)
case "mql":
ses = mql.NewMqlSession(ts)
case "gremlin":
fallthrough
default:
ses = gremlin.NewGremlinSession(ts, config.GremlinTimeout, true)
}
inputBf := bufio.NewReader(os.Stdin)
line := ""
for {
if line == "" {
fmt.Print("cayley> ")
} else {
fmt.Print("... ")
}
l, pre, err := inputBf.ReadLine()
if err == io.EOF {
if line != "" {
line = ""
} else {
break
}
}
if err != nil {
line = ""
}
if pre {
panic("Line too long")
}
line += string(l)
if line == "" {
continue
}
if strings.HasPrefix(line, ":debug") {
ses.ToggleDebug()
fmt.Println("Debug Toggled")
line = ""
continue
}
if strings.HasPrefix(line, ":a") {
var tripleStmt = line[3:]
triple := nquads.ParseLineToTriple(tripleStmt)
if triple == nil {
fmt.Println("Not a valid triple.")
line = ""
continue
}
ts.AddTriple(triple)
line = ""
continue
}
if strings.HasPrefix(line, ":d") {
var tripleStmt = line[3:]
triple := nquads.ParseLineToTriple(tripleStmt)
if triple == nil {
fmt.Println("Not a valid triple.")
line = ""
continue
}
ts.RemoveTriple(triple)
line = ""
continue
}
result, err := ses.InputParses(line)
switch result {
case graph.Parsed:
RunQuery(line, ses)
line = ""
case graph.ParseFail:
fmt.Println("Error: ", err)
line = ""
case graph.ParseMore:
default:
}
}
}