datastore

type Factory interface {
	Create(provider ProviderName, name string, options map[string]interface{}) (Index, error)
}

type FilterParams struct {
	OSExpected bool
	OS         string

	VersionExpected   bool
	Version           string
	VersionConstraint *semver.Constraints

	IaaSExpected bool
	IaaS         string

	HypervisorExpected bool
	Hypervisor         string

	DiskFormatExpected bool
	DiskFormat         string

	FlavorExpected bool
	Flavor         string

	LabelsExpected bool // TODO unnecessary? implied by len > 0
	Labels         []string
}

type Index interface {
	GetName() string
	GetArtifacts(f FilterParams) ([]stemcellversion.Artifact, error)
	FlushCache() error
}

type NamedGetter func(name string) (Index, error)

type ProviderName string