// handleDelete deletes the configuration whose name matches the name specified
// in the url. If no such configuration exists do nothing.
// Always sends a 204 code.
func (ch Handler) handleDelete(w http.ResponseWriter, r *http.Request, configName string) {
if err := ch.Delete(configName); err != nil {
response.ServerError(w)
return
}
response.Write(w, http.StatusNoContent, nil)
}
// handleGet sends a list of configurations containing only one configuration
// whose name matches the name specified in the url with a 200 code. If no such
// configuration can be found sends a 404 code.
func (ch Handler) handleGet(w http.ResponseWriter, r *http.Request, configName string) {
configs, err := ch.Get(configName)
if err == configuration.DoesNotExistErr {
http.Error(w, "", http.StatusNotFound)
return
}
if err != nil {
response.ServerError(w)
return
}
response.WriteJson(w, http.StatusOK, configuration.Configurations{configs})
}
// handleGetAll sends a list of all the configurations with a 200 code
func (ch Handler) handleGetAll(w http.ResponseWriter, r *http.Request) {
configs, err := ch.GetAll()
if err != nil {
response.ServerError(w)
return
}
configs, err = handleParameters(w, r, configs)
if err != nil {
http.Error(w, "Bad Query String", http.StatusBadRequest)
}
response.WriteJson(w, http.StatusOK, configuration.Configurations{configs})
}
// handleAdd parses the json in the request body and creates a configuration with the fields
// indicated in the json. If successful it sends a 200 code. If two configurations
//have the same name then it sends a 409 code with the configuration in the body of
// the response.
func (ch Handler) handleAdd(w http.ResponseWriter, r *http.Request) {
config := configuration.Configuration{}
err := json.NewDecoder(r.Body).Decode(&config)
if err != nil {
http.Error(w, "Bad Format", http.StatusBadRequest)
return
}
configs, err := ch.Add(config)
if configErr, ok := err.(configuration.Error); ok && configErr.Err == configuration.DuplicateConfigErr {
response.WriteJson(w, http.StatusConflict, configuration.Configurations{[]configuration.Configuration{configErr.Configuration}})
return
}
if err != nil {
response.ServerError(w)
}
response.WriteJson(w, http.StatusOK, configuration.Configurations{configs})
}
// handleModify modifies the configuration whose name matches the name specified
// in the url. If no such configuration exists sends a 404 code. If the modification
// would cause two configurations to have the same name then sends a 409 code with
// the configuration in the body of the response. If successful sends a 200 code/
func (ch Handler) handleModify(w http.ResponseWriter, r *http.Request, configName string) {
config := configuration.Configuration{}
err := json.NewDecoder(r.Body).Decode(&config)
if err != nil {
http.Error(w, "Bad Format", http.StatusBadRequest)
return
}
config, err = ch.Modify(configName, config)
if err == configuration.DoesNotExistErr {
http.Error(w, "", http.StatusNotFound)
return
} else if confErr, ok := err.(configuration.Error); ok && confErr.Err == configuration.DuplicateConfigErr {
response.WriteJson(w, http.StatusConflict, configuration.Configurations{[]configuration.Configuration{confErr.Configuration}})
return
} else if err != nil {
response.ServerError(w)
return
}
response.WriteJson(w, http.StatusOK, configuration.Configurations{[]configuration.Configuration{config}})
}