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factory.go
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factory.go
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package disk
import (
"path/filepath"
"strconv"
bosherr "github.com/cloudfoundry/bosh-utils/errors"
boshlog "github.com/cloudfoundry/bosh-utils/logger"
boshuuid "github.com/cloudfoundry/bosh-utils/uuid"
apiv1 "github.com/cppforlife/bosh-cpi-go/apiv1"
"github.com/cppforlife/bosh-virtualbox-cpi/driver"
)
type Factory struct {
dirPath string
uuidGen boshuuid.Generator
driver driver.Driver
runner driver.Runner
logger boshlog.Logger
}
func NewFactory(
dirPath string,
uuidGen boshuuid.Generator,
driver driver.Driver,
runner driver.Runner,
logger boshlog.Logger,
) Factory {
return Factory{
dirPath: dirPath,
uuidGen: uuidGen,
driver: driver,
runner: runner,
logger: logger,
}
}
func (f Factory) Create(size int) (Disk, error) {
id, err := f.uuidGen.Generate()
if err != nil {
return nil, bosherr.WrapError(err, "Generating disk id")
}
id = "disk-" + id
disk := f.newDisk(apiv1.NewDiskCID(id))
_, _, err = f.runner.Execute("mkdir", "-p", disk.Path())
if err != nil {
return nil, bosherr.WrapError(err, "Creating disk parent")
}
_, err = f.driver.Execute(
"createhd",
"--filename", disk.VMDKPath(),
"--size", strconv.Itoa(size),
"--format", "VMDK",
"--variant", "Standard",
)
if err != nil {
return nil, bosherr.WrapError(err, "Creating disk")
}
return disk, nil
}
func (f Factory) Find(cid apiv1.DiskCID) (Disk, error) {
return f.newDisk(cid), nil
}
func (f Factory) newDisk(cid apiv1.DiskCID) DiskImpl {
diskPath := filepath.Join(f.dirPath, cid.AsString())
return NewDiskImpl(cid, diskPath, f.runner, f.logger)
}