refactor monitoring (#1751)

Signed-off-by: huanggze <loganhuang@yunify.com>

pkg/models/monitoring/monitoring.go

@@ -0,0 +1,69 @@
+/*
+
+ Copyright 2019 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 monitoring
+
+import (
+	"k8s.io/klog"
+	"kubesphere.io/kubesphere/pkg/api/monitoring/v1alpha2"
+	"kubesphere.io/kubesphere/pkg/simple/client/monitoring"
+	"time"
+)
+
+type MonitoringOperator interface {
+	GetMetrics(stmts []string, time time.Time) (v1alpha2.APIResponse, error)
+	GetMetricsOverTime(stmts []string, start, end time.Time, step time.Duration) (v1alpha2.APIResponse, error)
+	GetNamedMetrics(time time.Time, opt monitoring.QueryOption) (v1alpha2.APIResponse, error)
+	GetNamedMetricsOverTime(start, end time.Time, step time.Duration, opt monitoring.QueryOption) (v1alpha2.APIResponse, error)
+	SortMetrics(raw v1alpha2.APIResponse, target, order, identifier string) (v1alpha2.APIResponse, int)
+	PageMetrics(raw v1alpha2.APIResponse, page, limit, rows int) v1alpha2.APIResponse
+}
+
+type monitoringOperator struct {
+	c monitoring.Interface
+}
+
+func NewMonitoringOperator(client monitoring.Interface) MonitoringOperator {
+	return &monitoringOperator{client}
+}
+
+// TODO(huanggze): reserve for custom monitoring
+func (mo monitoringOperator) GetMetrics(stmts []string, time time.Time) (v1alpha2.APIResponse, error) {
+	panic("implement me")
+}
+
+// TODO(huanggze): reserve for custom monitoring
+func (mo monitoringOperator) GetMetricsOverTime(stmts []string, start, end time.Time, step time.Duration) (v1alpha2.APIResponse, error) {
+	panic("implement me")
+}
+
+func (mo monitoringOperator) GetNamedMetrics(time time.Time, opt monitoring.QueryOption) (v1alpha2.APIResponse, error) {
+	metrics, err := mo.c.GetNamedMetrics(time, opt)
+	if err != nil {
+		klog.Error(err)
+	}
+	return v1alpha2.APIResponse{Results: metrics}, err
+}
+
+func (mo monitoringOperator) GetNamedMetricsOverTime(start, end time.Time, step time.Duration, opt monitoring.QueryOption) (v1alpha2.APIResponse, error) {
+	metrics, err := mo.c.GetNamedMetricsOverTime(start, end, step, opt)
+	if err != nil {
+		klog.Error(err)
+	}
+	return v1alpha2.APIResponse{Results: metrics}, err
+}