// DeleteResource returns a function that will handle a resource deletion
func DeleteResource(r rest.GracefulDeleter, checkBody bool, scope RequestScope, admit admission.Interface) restful.RouteFunction {
return func(req *restful.Request, res *restful.Response) {
w := res.ResponseWriter
// TODO: we either want to remove timeout or document it (if we document, move timeout out of this function and declare it in api_installer)
timeout := parseTimeout(req.Request.URL.Query().Get("timeout"))
namespace, name, err := scope.Namer.Name(req)
if err != nil {
errorJSON(err, scope.Codec, w)
return
}
ctx := scope.ContextFunc(req)
ctx = api.WithNamespace(ctx, namespace)
options := &api.DeleteOptions{}
if checkBody {
body, err := readBody(req.Request)
if err != nil {
errorJSON(err, scope.Codec, w)
return
}
if len(body) > 0 {
if err := scope.Codec.DecodeInto(body, options); err != nil {
errorJSON(err, scope.Codec, w)
return
}
}
}
if admit != nil && admit.Handles(admission.Delete) {
userInfo, _ := api.UserFrom(ctx)
err = admit.Admit(admission.NewAttributesRecord(nil, scope.Kind, namespace, name, scope.Resource, scope.Subresource, admission.Delete, userInfo))
if err != nil {
errorJSON(err, scope.Codec, w)
return
}
}
result, err := finishRequest(timeout, func() (runtime.Object, error) {
return r.Delete(ctx, name, options)
})
if err != nil {
errorJSON(err, scope.Codec, w)
return
}
// if the rest.Deleter returns a nil object, fill out a status. Callers may return a valid
// object with the response.
if result == nil {
result = &unversioned.Status{
Status: unversioned.StatusSuccess,
Code: http.StatusOK,
Details: &unversioned.StatusDetails{
Name: name,
Kind: scope.Kind,
},
}
} else {
// when a non-status response is returned, set the self link
if _, ok := result.(*unversioned.Status); !ok {
if err := setSelfLink(result, req, scope.Namer); err != nil {
errorJSON(err, scope.Codec, w)
return
}
}
}
write(http.StatusOK, scope.APIVersion, scope.Codec, result, w, req.Request)
}
}
// DeleteResource returns a function that will handle a resource deletion
func DeleteResource(r rest.GracefulDeleter, checkBody bool, scope RequestScope, admit admission.Interface) restful.RouteFunction {
return func(req *restful.Request, res *restful.Response) {
// For performance tracking purposes.
trace := util.NewTrace("Delete " + req.Request.URL.Path)
defer trace.LogIfLong(250 * time.Millisecond)
w := res.ResponseWriter
// TODO: we either want to remove timeout or document it (if we document, move timeout out of this function and declare it in api_installer)
timeout := parseTimeout(req.Request.URL.Query().Get("timeout"))
namespace, name, err := scope.Namer.Name(req)
if err != nil {
scope.err(err, res.ResponseWriter, req.Request)
return
}
ctx := scope.ContextFunc(req)
ctx = api.WithNamespace(ctx, namespace)
options := &api.DeleteOptions{}
if checkBody {
body, err := readBody(req.Request)
if err != nil {
scope.err(err, res.ResponseWriter, req.Request)
return
}
if len(body) > 0 {
s, err := negotiateInputSerializer(req.Request, scope.Serializer)
if err != nil {
scope.err(err, res.ResponseWriter, req.Request)
return
}
defaultGVK := scope.Kind.GroupVersion().WithKind("DeleteOptions")
obj, _, err := scope.Serializer.DecoderToVersion(s, defaultGVK.GroupVersion()).Decode(body, &defaultGVK, options)
if err != nil {
scope.err(err, res.ResponseWriter, req.Request)
return
}
if obj != options {
scope.err(fmt.Errorf("decoded object cannot be converted to DeleteOptions"), res.ResponseWriter, req.Request)
return
}
}
}
if admit != nil && admit.Handles(admission.Delete) {
userInfo, _ := api.UserFrom(ctx)
err = admit.Admit(admission.NewAttributesRecord(nil, scope.Kind, namespace, name, scope.Resource, scope.Subresource, admission.Delete, userInfo))
if err != nil {
scope.err(err, res.ResponseWriter, req.Request)
return
}
}
trace.Step("About do delete object from database")
result, err := finishRequest(timeout, func() (runtime.Object, error) {
return r.Delete(ctx, name, options)
})
if err != nil {
scope.err(err, res.ResponseWriter, req.Request)
return
}
trace.Step("Object deleted from database")
// if the rest.Deleter returns a nil object, fill out a status. Callers may return a valid
// object with the response.
if result == nil {
result = &unversioned.Status{
Status: unversioned.StatusSuccess,
Code: http.StatusOK,
Details: &unversioned.StatusDetails{
Name: name,
Kind: scope.Kind.Kind,
},
}
} else {
// when a non-status response is returned, set the self link
if _, ok := result.(*unversioned.Status); !ok {
if err := setSelfLink(result, req, scope.Namer); err != nil {
scope.err(err, res.ResponseWriter, req.Request)
return
}
}
}
write(http.StatusOK, scope.Kind.GroupVersion(), scope.Serializer, result, w, req.Request)
}
}