func Run(query string, ses graph.Session) {
nResults := 0
startTrace, startTime := trace("Elapsed time: %g ms\n\n")
defer func() {
if nResults > 0 {
un(startTrace, startTime)
}
}()
fmt.Printf("\n")
c := make(chan interface{}, 5)
go ses.ExecInput(query, c, 100)
for res := range c {
fmt.Print(ses.ToText(res))
nResults++
}
if nResults > 0 {
fmt.Printf("-----------\n%d Results\n", nResults)
}
}
func Repl(ts graph.TripleStore, queryLanguage string, cfg *config.Config) {
var ses graph.Session
switch queryLanguage {
case "sexp":
ses = sexp.NewSession(ts)
case "mql":
ses = mql.NewSession(ts)
case "gremlin":
fallthrough
default:
ses = gremlin.NewSession(ts, cfg.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.Parse(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.Parse(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:
Run(line, ses)
line = ""
case graph.ParseFail:
fmt.Println("Error: ", err)
line = ""
case graph.ParseMore:
default:
}
}
}
func Repl(ts graph.TripleStore, queryLanguage string, cfg *config.Config) error {
var ses graph.Session
switch queryLanguage {
case "sexp":
ses = sexp.NewSession(ts)
case "mql":
ses = mql.NewSession(ts)
case "gremlin":
fallthrough
default:
ses = gremlin.NewSession(ts, cfg.GremlinTimeout, true)
}
buf := bufio.NewReader(os.Stdin)
var line []byte
for {
if len(line) == 0 {
fmt.Print("cayley> ")
} else {
fmt.Print("... ")
}
l, prefix, err := buf.ReadLine()
if err == io.EOF {
if len(line) != 0 {
line = line[:0]
} else {
return nil
}
}
if err != nil {
line = line[:0]
}
if prefix {
return errors.New("line too long")
}
line = append(line, l...)
if len(line) == 0 {
continue
}
if bytes.HasPrefix(line, []byte(":debug")) {
ses.ToggleDebug()
fmt.Println("Debug Toggled")
line = line[:0]
continue
}
if bytes.HasPrefix(line, []byte(":a")) {
var tripleStmt = line[3:]
triple, err := nquads.Parse(string(tripleStmt))
if triple == nil {
if err != nil {
fmt.Printf("not a valid triple: %v\n", err)
}
line = line[:0]
continue
}
ts.AddTriple(triple)
line = line[:0]
continue
}
if bytes.HasPrefix(line, []byte(":d")) {
var tripleStmt = line[3:]
triple, err := nquads.Parse(string(tripleStmt))
if triple == nil {
if err != nil {
fmt.Printf("not a valid triple: %v\n", err)
}
line = line[:0]
continue
}
ts.RemoveTriple(triple)
line = line[:0]
continue
}
result, err := ses.InputParses(string(line))
switch result {
case graph.Parsed:
Run(string(line), ses)
line = line[:0]
case graph.ParseFail:
fmt.Println("Error: ", err)
line = line[:0]
case graph.ParseMore:
}
}
}