func getConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
handler := "resourcifier: get configuration"
util.LogHandlerEntry(handler, r)
rtype, err := getPathVariable(w, r, "type", handler)
if err != nil {
return
}
rname, err := getPathVariable(w, r, "name", handler)
if err != nil {
return
}
c := &common.Configuration{
Resources: []*common.Resource{
{Name: rname, Type: rtype},
},
}
output, err := backend.Configure(c, configurator.GetOperation)
if err != nil {
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
return
}
util.LogHandlerExit(handler, http.StatusOK, output, w)
util.WriteYAML(handler, w, []byte(output), http.StatusOK)
}
func deleteConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
handler := "resourcifier: delete configuration"
util.LogHandlerEntry(handler, r)
defer r.Body.Close()
c := getConfiguration(w, r, handler)
if c != nil {
if _, err := backend.Configure(c, configurator.DeleteOperation); err != nil {
e := errors.New("cannot delete configuration: " + err.Error() + "\n")
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
return
}
w.WriteHeader(http.StatusNoContent)
util.LogHandlerExit(handler, http.StatusNoContent, "No Content", w)
return
}
util.LogHandlerExit(handler, http.StatusOK, "OK", w)
}
// NewService encapsulates code to open an HTTP server on the given address:port that serves the
// expansion API using the given Expander backend to do the actual expansion. After calling
// NewService, call ListenAndServe to start the returned service.
func NewService(address string, port int, backend Expander) *Service {
restful.EnableTracing(true)
webService := new(restful.WebService)
webService.Consumes(restful.MIME_JSON)
webService.Produces(restful.MIME_JSON)
handler := func(req *restful.Request, resp *restful.Response) {
util.LogHandlerEntry("expansion service", req.Request)
request := &ServiceRequest{}
if err := req.ReadEntity(&request); err != nil {
badRequest(resp, err.Error())
return
}
reqMsg := fmt.Sprintf("\nhandling request:\n%s\n", util.ToYAMLOrError(request))
util.LogHandlerText("expansion service", reqMsg)
response, err := backend.ExpandChart(request)
if err != nil {
badRequest(resp, fmt.Sprintf("error expanding chart: %s", err))
return
}
util.LogHandlerExit("expansion service", http.StatusOK, "OK", resp.ResponseWriter)
respMsg := fmt.Sprintf("\nreturning response:\n%s\n", util.ToYAMLOrError(response.Resources))
util.LogHandlerText("expansion service", respMsg)
resp.WriteEntity(response)
}
webService.Route(
webService.POST("/expand").
To(handler).
Doc("Expand a chart.").
Reads(&ServiceRequest{}).
Writes(&ServiceResponse{}))
container := restful.DefaultContainer
container.Add(webService)
server := &http.Server{
Addr: fmt.Sprintf("%s:%d", address, port),
Handler: container,
}
return &Service{
webService: webService,
server: server,
container: container,
}
}
func putConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
handler := "resourcifier: update configuration"
util.LogHandlerEntry(handler, r)
defer r.Body.Close()
c := getConfiguration(w, r, handler)
if c != nil {
if _, err := backend.Configure(c, configurator.ReplaceOperation); err != nil {
e := errors.New("cannot replace configuration: " + err.Error() + "\n")
util.LogAndReturnError(handler, http.StatusBadRequest, e, w)
return
}
util.LogHandlerExitWithYAML(handler, w, c, http.StatusCreated)
return
}
util.LogHandlerExit(handler, http.StatusOK, "OK", w)
}
func createConfigurationHandlerFunc(w http.ResponseWriter, r *http.Request) {
handler := "resourcifier: create configuration"
util.LogHandlerEntry(handler, r)
defer r.Body.Close()
c := getConfiguration(w, r, handler)
if c != nil {
_, err := backend.Configure(c, configurator.CreateOperation)
if err != nil {
util.LogAndReturnError(handler, http.StatusBadRequest, err, w)
return
}
util.LogHandlerExitWithYAML(handler, w, c, http.StatusCreated)
return
}
util.LogHandlerExit(handler, http.StatusOK, "OK", w)
}
func badRequest(resp *restful.Response, message string) {
statusCode := http.StatusBadRequest
util.LogHandlerExit("expansion service", statusCode, message, resp.ResponseWriter)
resp.WriteError(statusCode, errors.New(message))
}