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wait_until_uhost_instance_state.go
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wait_until_uhost_instance_state.go
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package uhost
import (
"time"
"github.com/ucloud/ucloud-sdk-go/private/utils"
"github.com/ucloud/ucloud-sdk-go/ucloud"
uerr "github.com/ucloud/ucloud-sdk-go/ucloud/error"
"github.com/ucloud/ucloud-sdk-go/ucloud/log"
"github.com/ucloud/ucloud-sdk-go/ucloud/request"
)
// WaitUntilUHostInstanceStateRequest is the request of uhost instance state waiter
type WaitUntilUHostInstanceStateRequest struct {
request.CommonBase
Interval *time.Duration
MaxAttempts *int
DescribeRequest *DescribeUHostInstanceRequest
State State
IgnoreError *bool
}
// NewWaitUntilUHostInstanceStateRequest will create request of WaitUntilUHostInstanceState action.
func (c *UHostClient) NewWaitUntilUHostInstanceStateRequest() *WaitUntilUHostInstanceStateRequest {
cfg := c.client.GetConfig()
return &WaitUntilUHostInstanceStateRequest{
CommonBase: request.CommonBase{
Region: ucloud.String(cfg.Region),
ProjectId: ucloud.String(cfg.ProjectId),
},
}
}
// WaitUntilUHostInstanceState will pending current goroutine until the state has changed to expected state.
func (c *UHostClient) WaitUntilUHostInstanceState(req *WaitUntilUHostInstanceStateRequest) error {
waiter := utils.FuncWaiter{
Interval: ucloud.TimeDurationValue(req.Interval),
MaxAttempts: ucloud.IntValue(req.MaxAttempts),
IgnoreError: ucloud.BoolValue(req.IgnoreError),
Checker: func() (bool, error) {
resp, err := c.DescribeUHostInstance(req.DescribeRequest)
if err != nil {
skipErrors := []string{uerr.ErrNetwork, uerr.ErrHTTPStatus, uerr.ErrRetCode}
if uErr, ok := err.(uerr.Error); ok && utils.IsStringIn(uErr.Name(), skipErrors) {
log.Infof("skip error for wait resource state, %s", uErr)
return false, nil
}
log.Infof("wait for resource state is ready, %s", err)
return false, err
}
// TODO: Ensure if it is any data consistency problem?
// Such as creating a new uhost, but cannot describe it's correct state immediately ...
for _, uhost := range resp.UHostSet {
if val, _ := req.State.MarshalValue(); uhost.State != val {
return false, nil
}
}
if len(resp.UHostSet) > 0 {
return true, nil
}
return false, nil
},
}
return waiter.WaitForCompletion()
}