refactor the code of resource list function

pkg/models/controllers/cronjobs.go

@@ -0,0 +1,158 @@
+/*
+Copyright 2018 The 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 controllers
+
+import (
+	"time"
+
+	"github.com/golang/glog"
+	"k8s.io/api/batch/v1beta1"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/client-go/informers"
+	"k8s.io/client-go/tools/cache"
+)
+
+func (ctl *CronJobCtl) generateObject(item v1beta1.CronJob) *CronJob {
+	var status, displayName string
+	var lastScheduleTime *time.Time
+
+	if item.Annotations != nil && len(item.Annotations[DisplayName]) > 0 {
+		displayName = item.Annotations[DisplayName]
+	}
+
+	name := item.Name
+	namespace := item.Namespace
+
+	status = Running
+	if *item.Spec.Suspend {
+		status = Pause
+	}
+
+	schedule := item.Spec.Schedule
+	if item.Status.LastScheduleTime != nil {
+		lastScheduleTime = &item.Status.LastScheduleTime.Time
+	}
+
+	active := len(item.Status.Active)
+
+	object := &CronJob{
+		Namespace:        namespace,
+		Name:             name,
+		DisplayName:      displayName,
+		LastScheduleTime: lastScheduleTime,
+		Active:           active,
+		Schedule:         schedule,
+		Status:           status,
+		Annotation:       MapString{item.Annotations},
+		Labels:           MapString{item.ObjectMeta.Labels},
+	}
+
+	return object
+}
+
+func (ctl *CronJobCtl) Name() string {
+	return ctl.CommonAttribute.Name
+}
+
+func (ctl *CronJobCtl) sync(stopChan chan struct{}) {
+	db := ctl.DB
+
+	if db.HasTable(&CronJob{}) {
+		db.DropTable(&CronJob{})
+	}
+
+	db = db.CreateTable(&CronJob{})
+
+	ctl.initListerAndInformer()
+	list, err := ctl.lister.List(labels.Everything())
+	if err != nil {
+		glog.Error(err)
+		return
+	}
+
+	for _, item := range list {
+		obj := ctl.generateObject(*item)
+		db.Create(obj)
+	}
+
+	ctl.informer.Run(stopChan)
+}
+
+func (ctl *CronJobCtl) total() int {
+	list, err := ctl.lister.List(labels.Everything())
+	if err != nil {
+		glog.Errorf("count %s falied, reason:%s", err, ctl.Name())
+		return 0
+	}
+	return len(list)
+}
+
+func (ctl *CronJobCtl) initListerAndInformer() {
+	db := ctl.DB
+
+	informerFactory := informers.NewSharedInformerFactory(ctl.K8sClient, time.Second*resyncCircle)
+	ctl.lister = informerFactory.Batch().V1beta1().CronJobs().Lister()
+
+	informer := informerFactory.Batch().V1beta1().CronJobs().Informer()
+	informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
+		AddFunc: func(obj interface{}) {
+
+			object := obj.(*v1beta1.CronJob)
+			mysqlObject := ctl.generateObject(*object)
+			db.Create(mysqlObject)
+		},
+		UpdateFunc: func(old, new interface{}) {
+			object := new.(*v1beta1.CronJob)
+			mysqlObject := ctl.generateObject(*object)
+			db.Save(mysqlObject)
+		},
+		DeleteFunc: func(obj interface{}) {
+			var item CronJob
+			object := obj.(*v1beta1.CronJob)
+			db.Where("name=? And namespace=?", object.Name, object.Namespace).Find(&item)
+			db.Delete(item)
+
+		},
+	})
+
+	ctl.informer = informer
+}
+
+func (ctl *CronJobCtl) CountWithConditions(conditions string) int {
+	var object CronJob
+
+	return countWithConditions(ctl.DB, conditions, &object)
+}
+
+func (ctl *CronJobCtl) ListWithConditions(conditions string, paging *Paging, order string) (int, interface{}, error) {
+	var list []CronJob
+	var object CronJob
+	var total int
+
+	if len(order) == 0 {
+		order = "lastScheduleTime desc"
+	}
+
+	listWithConditions(ctl.DB, &total, &object, &list, conditions, paging, order)
+
+	return total, list, nil
+}
+
+func (ctl *CronJobCtl) Lister() interface{} {
+
+	return ctl.lister
+}