43 lines
972 B
Go
43 lines
972 B
Go
package v1
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// Dispatch the command to leader.
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func dispatchCommand(c Command, w http.ResponseWriter, req *http.Request) error {
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return dispatch(c, w, req, nameToEtcdURL)
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}
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// Dispatches a command to a given URL.
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func dispatch(c Command, w http.ResponseWriter, req *http.Request, toURL func(name string) (string, bool)) error {
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r := e.raftServer
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if r.State() == raft.Leader {
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if event, err := r.Do(c); err != nil {
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return err
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} else {
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if event == nil {
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return etcdErr.NewError(300, "Empty result from raft", store.UndefIndex, store.UndefTerm)
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}
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event, _ := event.(*store.Event)
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response := eventToResponse(event)
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bytes, _ := json.Marshal(response)
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w.WriteHeader(http.StatusOK)
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w.Write(bytes)
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return nil
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}
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} else {
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leader := r.Leader()
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// current no leader
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if leader == "" {
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return etcdErr.NewError(300, "", store.UndefIndex, store.UndefTerm)
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}
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url, _ := toURL(leader)
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redirect(url, w, req)
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return nil
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}
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}
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