github.com/midokura/kubeedge@v1.2.0-mido.0/tests/stubs/cloud/controllerstub/downstream.go (about)

     1  /*
     2  Copyright 2019 The KubeEdge Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8     http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package controllerstub
    18  
    19  import (
    20  	"k8s.io/klog"
    21  
    22  	beehiveContext "github.com/kubeedge/beehive/pkg/core/context"
    23  	"github.com/kubeedge/kubeedge/tests/stubs/common/constants"
    24  )
    25  
    26  // NewDownstreamController creates a downstream controller
    27  func NewDownstreamController(pm *PodManager) (*DownstreamController, error) {
    28  	// New downstream controller
    29  	dc := &DownstreamController{podManager: pm}
    30  	return dc, nil
    31  }
    32  
    33  // DownstreamController receives http request and send to cloudhub
    34  type DownstreamController struct {
    35  	podManager *PodManager
    36  }
    37  
    38  // Start DownstreamController
    39  func (dc *DownstreamController) Start() error {
    40  	klog.Infof("Start downstream controller")
    41  	go dc.SyncPods()
    42  	return nil
    43  }
    44  
    45  // SyncPods is used to send message to cloudhub
    46  func (dc *DownstreamController) SyncPods() {
    47  	for {
    48  		select {
    49  		case <-beehiveContext.Done():
    50  			klog.Info("Stop sync pod")
    51  			return
    52  		case msg := <-dc.podManager.GetEvent():
    53  			klog.Infof("Send message to cloudhub: %v", *msg)
    54  			beehiveContext.Send(constants.CloudHub, *msg)
    55  			klog.Info("Finish send message to cloudhub")
    56  		}
    57  	}
    58  }