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list.go
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list.go
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// Copyright 2017 The Kubernetes 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 plugin
import (
"fmt"
"github.com/ycyxuehan/dashboard-gin/backend/api"
"github.com/ycyxuehan/dashboard-gin/backend/errors"
"github.com/ycyxuehan/dashboard-gin/backend/plugin/apis/v1alpha1"
pluginclientset "github.com/ycyxuehan/dashboard-gin/backend/plugin/client/clientset/versioned"
"github.com/ycyxuehan/dashboard-gin/backend/resource/dataselect"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// PluginList holds only necessary information and is used to
// map v1alpha1.PluginList to plugin.PluginList
type PluginList struct {
ListMeta api.ListMeta `json:"listMeta"`
Items []Plugin `json:"items"`
Errors []error `json:"errors"`
}
// PluginList holds only necessary information and is used to
// map v1alpha1.Plugin to plugin.Plugin
type Plugin struct {
ObjectMeta api.ObjectMeta `json:"objectMeta"`
TypeMeta api.TypeMeta `json:"typeMeta"`
Name string `json:"name"`
Path string `json:"path"`
Dependencies []string `json:"dependencies"`
}
type PluginCell v1alpha1.Plugin
func (p PluginCell) GetProperty(name dataselect.PropertyName) dataselect.ComparableValue {
switch name {
case dataselect.NameProperty:
return dataselect.StdComparableString(p.ObjectMeta.Name)
case dataselect.CreationTimestampProperty:
return dataselect.StdComparableTime(p.ObjectMeta.CreationTimestamp.Time)
case dataselect.NamespaceProperty:
return dataselect.StdComparableString(p.ObjectMeta.Namespace)
default:
// if name is not supported then just return a constant dummy value, sort will have no effect.
return nil
}
}
// GetPluginList returns all the registered plugins
func GetPluginList(client pluginclientset.Interface, ns string, dsQuery *dataselect.DataSelectQuery) (*PluginList, error) {
plugins, err := client.DashboardV1alpha1().Plugins(ns).List(v1.ListOptions{})
nonCriticalErrors, criticalError := errors.HandleError(err)
if criticalError != nil {
return &PluginList{Items: []Plugin{}, Errors: []error{criticalError}}, nil
}
result := toPluginList(plugins.Items, nonCriticalErrors, dsQuery)
return result, nil
}
func toPluginList(plugins []v1alpha1.Plugin, nonCriticalErrors []error, dsQuery *dataselect.DataSelectQuery) *PluginList {
result := &PluginList{
Items: make([]Plugin, 0),
ListMeta: api.ListMeta{TotalItems: len(plugins)},
Errors: nonCriticalErrors,
}
pluginCells, filteredTotal := dataselect.GenericDataSelectWithFilter(toCells(plugins), dsQuery)
plugins = fromCells(pluginCells)
result.ListMeta = api.ListMeta{TotalItems: filteredTotal}
for _, item := range plugins {
result.Items = append(result.Items, toPlugin(item))
}
return result
}
func toPlugin(plugin v1alpha1.Plugin) Plugin {
return Plugin{
ObjectMeta: api.NewObjectMeta(plugin.ObjectMeta),
TypeMeta: api.NewTypeMeta(api.ResourceKindPlugin),
Name: plugin.ObjectMeta.Name,
Path: fmt.Sprintf("/api/v1/%s/%s/%s.js", api.ResourceKindPlugin, plugin.Namespace, plugin.Name),
Dependencies: append([]string{}, plugin.Spec.Dependencies...),
}
}
func toCells(std []v1alpha1.Plugin) []dataselect.DataCell {
cells := make([]dataselect.DataCell, len(std))
for i := range std {
cells[i] = PluginCell(std[i])
}
return cells
}
func fromCells(cells []dataselect.DataCell) []v1alpha1.Plugin {
std := make([]v1alpha1.Plugin, len(cells))
for i := range std {
std[i] = v1alpha1.Plugin(cells[i].(PluginCell))
}
return std
}