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delete_handler.go
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/
delete_handler.go
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package v2
import (
"net/http"
"strconv"
etcdErr "github.com/coreos/etcd/error"
"github.com/coreos/etcd/third_party/github.com/gorilla/mux"
)
func DeleteHandler(w http.ResponseWriter, req *http.Request, s Server) error {
vars := mux.Vars(req)
key := "/" + vars["key"]
recursive := (req.FormValue("recursive") == "true")
dir := (req.FormValue("dir") == "true")
req.ParseForm()
_, valueOk := req.Form["prevValue"]
_, indexOk := req.Form["prevIndex"]
if !valueOk && !indexOk {
c := s.Store().CommandFactory().CreateDeleteCommand(key, dir, recursive)
return s.Dispatch(c, w, req)
}
var err error
prevIndex := uint64(0)
prevValue := req.Form.Get("prevValue")
if indexOk {
prevIndexStr := req.Form.Get("prevIndex")
prevIndex, err = strconv.ParseUint(prevIndexStr, 10, 64)
// bad previous index
if err != nil {
return etcdErr.NewError(etcdErr.EcodeIndexNaN, "CompareAndDelete", s.Store().Index())
}
}
if valueOk {
if prevValue == "" {
return etcdErr.NewError(etcdErr.EcodePrevValueRequired, "CompareAndDelete", s.Store().Index())
}
}
c := s.Store().CommandFactory().CreateCompareAndDeleteCommand(key, prevValue, prevIndex)
return s.Dispatch(c, w, req)
}