Files
kubevela/references/cli/velaql.go
2022-03-11 21:22:58 +08:00

95 lines
2.6 KiB
Go

/*
Copyright 2021 The KubeVela 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 cli
import (
"context"
"fmt"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/oam-dev/kubevela/pkg/utils/common"
"github.com/oam-dev/kubevela/pkg/velaql"
querytypes "github.com/oam-dev/kubevela/pkg/velaql/providers/query/types"
)
// Filter filter options
type Filter struct {
Component string
Cluster string
ClusterNamespace string
}
// MakeVelaQL build velaQL
func MakeVelaQL(view string, params map[string]string, action string) string {
var paramString string
for key, value := range params {
if paramString != "" {
paramString = fmt.Sprintf("%s, %s=%s", paramString, key, value)
} else {
paramString = fmt.Sprintf("%s=%s", key, value)
}
}
return fmt.Sprintf("%s{%s}.%s", view, paramString, action)
}
// GetServiceEndpoints get service endpoints by velaQL
func GetServiceEndpoints(ctx context.Context, client client.Client, appName string, namespace string, velaC common.Args, f Filter) ([]querytypes.ServiceEndpoint, error) {
dm, err := velaC.GetDiscoveryMapper()
if err != nil {
return nil, err
}
pd, err := velaC.GetPackageDiscover()
if err != nil {
return nil, err
}
parmas := map[string]string{
"appName": appName,
"appNs": namespace,
}
if f.Component != "" {
parmas["name"] = f.Component
}
if f.Cluster != "" && f.ClusterNamespace != "" {
parmas["cluster"] = f.Cluster
parmas["clusterNs"] = f.ClusterNamespace
}
queryView, err := velaql.ParseVelaQL(MakeVelaQL("service-endpoints-view", parmas, "status"))
if err != nil {
return nil, err
}
config, err := velaC.GetConfig()
if err != nil {
return nil, err
}
queryValue, err := velaql.NewViewHandler(client, config, dm, pd).QueryView(ctx, queryView)
if err != nil {
return nil, err
}
var response = struct {
Endpoints []querytypes.ServiceEndpoint `json:"endpoints"`
Error string `json:"error"`
}{}
if err := queryValue.CueValue().Decode(&response); err != nil {
return nil, err
}
if response.Error != "" {
return nil, fmt.Errorf(response.Error)
}
return response.Endpoints, nil
}