/*
POST /databases/register
PUT /databases/assign
*/
func DatabasesHandler(w http.ResponseWriter, request *http.Request) {
vars := mux.Vars(request)
log.Trace(fmt.Sprintf("admin.DatabasesHandler() > %s /databases/%s %+v", request.Method, vars["action"], vars))
switch request.Method {
case "GET":
switch vars["action"] {
case "": // List All Databases
instances, err := instances.All()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instances.All() %s %+v ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
jsonInstances, err := json.Marshal(instances)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): json.Marshal(instances) %s %+v ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
} else {
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(http.StatusOK)
w.Write(jsonInstances)
}
case "available": // Lists Available Databases
instances, err := instances.Available()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instances.Available() %s %+v ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
jsonInstances, err := json.Marshal(instances)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): json.Marshal(instances) %s %+v ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
} else {
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(http.StatusOK)
w.Write(jsonInstances)
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Invalid Action %s"}`, http.StatusBadRequest, vars["action"])
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): %s %s`, msg, vars))
http.Error(w, msg, http.StatusBadRequest)
}
case `POST`:
var i instances.Instance
decoder := json.NewDecoder(request.Body)
err := decoder.Decode(&i)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): decoder.Decode() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
switch vars[`action`] {
case `register`: // Creates a new record.
err = i.Register()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): Instance#Register() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
} else {
w.Header().Set(`Content-Type`, `application/json; charset=UTF-8`)
w.WriteHeader(http.StatusOK)
w.Write([]byte(`{}`))
return
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Invalid Action %s"}`, http.StatusBadRequest, vars[`action`])
log.Error(msg)
http.Error(w, msg, http.StatusBadRequest)
}
case `PUT`:
var i instances.Instance
decoder := json.NewDecoder(request.Body)
err := decoder.Decode(&i)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): decoder.Decode() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
switch vars[`action`] {
case `assign`: // updates an existing record.
err = i.Assign()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instances.Assign() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
} else {
w.Header().Set(`Content-Type`, `application/json; charset=UTF-8`)
w.WriteHeader(http.StatusOK)
w.Write([]byte(`{}`))
return
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Invalid Action %s"}`, http.StatusBadRequest, vars[`action`])
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): %s %s`, msg, vars))
http.Error(w, msg, http.StatusBadRequest)
}
case `DELETE`:
switch vars[`action`] {
case `decommission`:
i, err := instances.FindByDatabase(vars[`database`])
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instance.FindByDatabase() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
} else {
err = i.Decommission()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "There was an error decommissioning the database (%s)"}`, http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instance#Decommission() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
}
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Invalid Action %s"}`, http.StatusBadRequest, vars[`action`])
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): %s %s`, msg, vars))
http.Error(w, msg, http.StatusBadRequest)
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Method not allowed %s"}`, http.StatusMethodNotAllowed, request.Method)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): %s %s`, msg, vars))
http.Error(w, msg, http.StatusMethodNotAllowed)
return
}
}
/*
POST /databases/register
PUT /databases/assign
*/
func DatabasesHandler(w http.ResponseWriter, request *http.Request) {
vars := mux.Vars(request)
log.Trace(fmt.Sprintf("admin.DatabasesHandler() > %s /databases/%s %+v", request.Method, vars["action"], vars))
switch request.Method {
case "GET":
switch vars["action"] {
case "": // List All Databases
instances, err := instances.All()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instances.All() %s %+v ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
jsonInstances, err := json.Marshal(instances)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): json.Marshal(instances) %s %+v ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
} else {
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(http.StatusOK)
w.Write(jsonInstances)
}
case "available": // Lists Available Databases
instances, err := instances.Available()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instances.Available() %s %+v ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
jsonInstances, err := json.Marshal(instances)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): json.Marshal(instances) %s %+v ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
} else {
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(http.StatusOK)
w.Write(jsonInstances)
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Invalid Action %s"}`+"\n", http.StatusBadRequest, vars["action"])
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): %s %s`, msg, vars))
http.Error(w, msg, http.StatusBadRequest)
}
case `POST`:
var i instances.Instance
decoder := json.NewDecoder(request.Body)
err := decoder.Decode(&i)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): decoder.Decode() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
switch vars[`action`] {
case `register`:
err = i.Register()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): Instance#Register() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
} else {
w.Header().Set(`Content-Type`, `application/json; charset=UTF-8`)
w.WriteHeader(http.StatusOK)
w.Write([]byte(`{}`))
return
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Invalid Action %s"}`+"\n", http.StatusBadRequest, vars[`action`])
log.Error(msg)
http.Error(w, msg, http.StatusBadRequest)
}
case `PUT`:
switch vars[`action`] {
case `assign`: // updates an existing record.
// PUT /databases/assign/database
var i instances.Instance
decoder := json.NewDecoder(request.Body)
err := decoder.Decode(&i)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): decoder.Decode() assign %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
err = i.Assign()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instances.Assign() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
} else {
w.Header().Set(`Content-Type`, `application/json; charset=UTF-8`)
w.WriteHeader(http.StatusOK)
w.Write([]byte(`{}`))
return
}
case `decommissioned`: // updates an existing record to show it was deprovisioned.
// PUT /databases/decommissioned
// This is requested from service cluster to master cluster
type decomm struct {
Database string `json:"database"`
Timestamp string `json:"timestamp"`
}
dc := decomm{}
decoder := json.NewDecoder(request.Body)
err := decoder.Decode(&dc)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): decoder.Decode() decommissioned %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
if len(dc.Timestamp) < 1 {
err = errors.New(`Timestamp query parameter assignment is required!`)
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): decommissioned %s ! %s`, msg, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
i, err := instances.FindByDatabase(dc.Database)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instances.FindByDatabase(%s) %s ! %s`, dc.Database, msg, err))
http.Error(w, msg, http.StatusInternalServerError)
return
}
err = i.DecommissionedAt(dc.Timestamp)
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}"`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instances.DecommissionedAt() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
} else {
w.Header().Set(`Content-Type`, `application/json; charset=UTF-8`)
w.WriteHeader(http.StatusOK)
w.Write([]byte(`{}`))
return
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Invalid Action %s"}`+"\n", http.StatusBadRequest, vars[`action`])
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): %s %s`, msg, vars))
http.Error(w, msg, http.StatusBadRequest)
}
case `DELETE`:
switch vars[`action`] {
case `decommission`:
i, err := instances.FindByDatabase(vars[`database`])
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "%s"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instance.FindByDatabase() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
return
} else {
err = i.Decommission()
if err != nil {
msg := fmt.Sprintf(`{"status": %d, "description": "There was an error decommissioning the database (%s)"}`+"\n", http.StatusInternalServerError, err)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): instance#Decommission() %s %s ! %s`, msg, vars, err))
http.Error(w, msg, http.StatusInternalServerError)
}
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Invalid Action %s"}`+"\n", http.StatusBadRequest, vars[`action`])
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): %s %s`, msg, vars))
http.Error(w, msg, http.StatusBadRequest)
}
default:
msg := fmt.Sprintf(`{"status": %d, "description": "Method not allowed %s"}`+"\n", http.StatusMethodNotAllowed, request.Method)
log.Error(fmt.Sprintf(`admin.DatabasesHandler(): %s %s`, msg, vars))
http.Error(w, msg, http.StatusMethodNotAllowed)
return
}
}