terraform/builtin/providers/google/operation.go

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package google
import (
"fmt"
"code.google.com/p/google-api-go-client/compute/v1"
"github.com/hashicorp/terraform/helper/resource"
)
// OperationWaitType is an enum specifying what type of operation
// we're waiting on.
type OperationWaitType byte
const (
OperationWaitInvalid OperationWaitType = iota
OperationWaitGlobal
OperationWaitRegion
OperationWaitZone
)
type OperationWaiter struct {
Service *compute.Service
Op *compute.Operation
Project string
Region string
Zone string
Type OperationWaitType
}
func (w *OperationWaiter) RefreshFunc() resource.StateRefreshFunc {
return func() (interface{}, string, error) {
var op *compute.Operation
var err error
switch w.Type {
case OperationWaitGlobal:
op, err = w.Service.GlobalOperations.Get(
w.Project, w.Op.Name).Do()
case OperationWaitRegion:
op, err = w.Service.RegionOperations.Get(
w.Project, w.Region, w.Op.Name).Do()
case OperationWaitZone:
op, err = w.Service.ZoneOperations.Get(
w.Project, w.Zone, w.Op.Name).Do()
default:
return nil, "bad-type", fmt.Errorf(
"Invalid wait type: %#v", w.Type)
}
if err != nil {
return nil, "", err
}
return op, op.Status, nil
}
}
func (w *OperationWaiter) Conf() *resource.StateChangeConf {
return &resource.StateChangeConf{
Pending: []string{"PENDING", "RUNNING"},
Target: "DONE",
Refresh: w.RefreshFunc(),
}
}