[v3.2] Add grafana dashboard importing API (#11)

* Add API to import grafana templates to kubesphere dashboard
* Merge and fix the latest codes from kubesphere #2501

Signed-off-by: zhu733756 <talonzhu@yunify.com>

vendor/kubesphere.io/client-go/client/generic/unstructuredClient.go

@@ -0,0 +1,274 @@
+/*
+Copyright 2020 KubeSphere Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package generic
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+	"kubesphere.io/client-go/client"
+)
+
+// client is a client.Client that reads and writes directly from/to an API server.  It lazily initializes
+// new clients at the time they are used, and caches the client.
+type unstructuredClient struct {
+	cache      client.ClientCache
+	paramCodec runtime.ParameterCodec
+}
+
+// Create implements client.Client
+func (uc *unstructuredClient) Create(ctx context.Context, obj runtime.Object, opts ...client.CreateOption) error {
+	u, ok := obj.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	gvk := u.GroupVersionKind()
+
+	o, err := uc.cache.GetObjMeta(obj)
+	if err != nil {
+		return err
+	}
+
+	createOpts := &client.CreateOptions{}
+	createOpts.ApplyOptions(opts)
+	result := o.Post().
+		NamespaceIfScoped(o.GetNamespace(), o.IsNamespaced()).
+		Resource(o.Resource()).
+		Body(obj).
+		VersionedParams(createOpts.AsCreateOptions(), uc.paramCodec).
+		Do(ctx).
+		Into(obj)
+
+	u.SetGroupVersionKind(gvk)
+	return result
+}
+
+// Update implements client.Client
+func (uc *unstructuredClient) Update(ctx context.Context, obj runtime.Object, opts ...client.UpdateOption) error {
+	u, ok := obj.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	gvk := u.GroupVersionKind()
+
+	o, err := uc.cache.GetObjMeta(obj)
+	if err != nil {
+		return err
+	}
+
+	updateOpts := client.UpdateOptions{}
+	updateOpts.ApplyOptions(opts)
+	result := o.Put().
+		NamespaceIfScoped(o.GetNamespace(), o.IsNamespaced()).
+		Resource(o.Resource()).
+		Name(o.GetName()).
+		Body(obj).
+		VersionedParams(updateOpts.AsUpdateOptions(), uc.paramCodec).
+		Do(ctx).
+		Into(obj)
+
+	u.SetGroupVersionKind(gvk)
+	return result
+}
+
+// Delete implements client.Client
+func (uc *unstructuredClient) Delete(ctx context.Context, obj runtime.Object, opts ...client.DeleteOption) error {
+	_, ok := obj.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	o, err := uc.cache.GetObjMeta(obj)
+	if err != nil {
+		return err
+	}
+
+	deleteOpts := client.DeleteOptions{}
+	deleteOpts.ApplyOptions(opts)
+	return o.Delete().
+		NamespaceIfScoped(o.GetNamespace(), o.IsNamespaced()).
+		Resource(o.Resource()).
+		Name(o.GetName()).
+		Body(deleteOpts.AsDeleteOptions()).
+		Do(ctx).
+		Error()
+}
+
+// DeleteAllOf implements client.Client
+func (uc *unstructuredClient) DeleteAllOf(ctx context.Context, obj runtime.Object, opts ...client.DeleteAllOfOption) error {
+	_, ok := obj.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	o, err := uc.cache.GetObjMeta(obj)
+	if err != nil {
+		return err
+	}
+
+	deleteAllOfOpts := client.DeleteAllOfOptions{}
+	deleteAllOfOpts.ApplyOptions(opts)
+	return o.Delete().
+		NamespaceIfScoped(deleteAllOfOpts.ListOptions.Namespace, o.IsNamespaced()).
+		Resource(o.Resource()).
+		VersionedParams(deleteAllOfOpts.AsListOptions(), uc.paramCodec).
+		Body(deleteAllOfOpts.AsDeleteOptions()).
+		Do(ctx).
+		Error()
+}
+
+// Patch implements client.Client
+func (uc *unstructuredClient) Patch(ctx context.Context, obj runtime.Object, patch client.Patch, opts ...client.PatchOption) error {
+	_, ok := obj.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	o, err := uc.cache.GetObjMeta(obj)
+	if err != nil {
+		return err
+	}
+
+	data, err := patch.Data(obj)
+	if err != nil {
+		return err
+	}
+
+	patchOpts := &client.PatchOptions{}
+	return o.Patch(patch.Type()).
+		NamespaceIfScoped(o.GetNamespace(), o.IsNamespaced()).
+		Resource(o.Resource()).
+		Name(o.GetName()).
+		VersionedParams(patchOpts.ApplyOptions(opts).AsPatchOptions(), uc.paramCodec).
+		Body(data).
+		Do(ctx).
+		Into(obj)
+}
+
+// Get implements client.Client
+func (uc *unstructuredClient) Get(ctx context.Context, key client.ObjectKey, obj runtime.Object, opts ...client.GetOption) error {
+	u, ok := obj.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	gvk := u.GroupVersionKind()
+
+	r, err := uc.cache.GetResource(obj)
+	if err != nil {
+		return err
+	}
+
+	result := r.Get().
+		NamespaceIfScoped(key.Namespace, r.IsNamespaced()).
+		Resource(r.Resource()).
+		Name(key.Name).
+		Do(ctx).
+		Into(obj)
+
+	u.SetGroupVersionKind(gvk)
+
+	return result
+}
+
+// List implements client.Client
+func (uc *unstructuredClient) List(ctx context.Context, obj runtime.Object, opts ...client.ListOption) error {
+	u, ok := obj.(*unstructured.UnstructuredList)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	gvk := u.GroupVersionKind()
+	if strings.HasSuffix(gvk.Kind, "List") {
+		gvk.Kind = gvk.Kind[:len(gvk.Kind)-4]
+	}
+
+	listOpts := client.ListOptions{}
+	listOpts.ApplyOptions(opts)
+
+	r, err := uc.cache.GetResource(obj)
+	if err != nil {
+		return err
+	}
+
+	return r.Get().
+		NamespaceIfScoped(listOpts.Namespace, r.IsNamespaced()).
+		Resource(r.Resource()).
+		VersionedParams(listOpts.AsListOptions(), uc.paramCodec).
+		Do(ctx).
+		Into(obj)
+}
+
+func (uc *unstructuredClient) UpdateStatus(ctx context.Context, obj runtime.Object, opts ...client.UpdateOption) error {
+	_, ok := obj.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	o, err := uc.cache.GetObjMeta(obj)
+	if err != nil {
+		return err
+	}
+
+	return o.Put().
+		NamespaceIfScoped(o.GetNamespace(), o.IsNamespaced()).
+		Resource(o.Resource()).
+		Name(o.GetName()).
+		SubResource("status").
+		Body(obj).
+		VersionedParams((&client.UpdateOptions{}).ApplyOptions(opts).AsUpdateOptions(), uc.paramCodec).
+		Do(ctx).
+		Into(obj)
+}
+
+func (uc *unstructuredClient) PatchStatus(ctx context.Context, obj runtime.Object, patch client.Patch, opts ...client.PatchOption) error {
+	u, ok := obj.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("unstructured client did not understand object: %T", obj)
+	}
+
+	gvk := u.GroupVersionKind()
+
+	o, err := uc.cache.GetObjMeta(obj)
+	if err != nil {
+		return err
+	}
+
+	data, err := patch.Data(obj)
+	if err != nil {
+		return err
+	}
+
+	patchOpts := &client.PatchOptions{}
+	result := o.Patch(patch.Type()).
+		NamespaceIfScoped(o.GetNamespace(), o.IsNamespaced()).
+		Resource(o.Resource()).
+		Name(o.GetName()).
+		SubResource("status").
+		Body(data).
+		VersionedParams(patchOpts.ApplyOptions(opts).AsPatchOptions(), uc.paramCodec).
+		Do(ctx).
+		Into(u)
+
+	u.SetGroupVersionKind(gvk)
+	return result
+}