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package metrics
import (
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
// ListOptsBuilder allows extensions to add additional parameters to the
// List request.
type ListOptsBuilder interface {
ToMetricListQuery() (string, error)
}
// ListOpts allows the limiting and sorting of paginated collections through
// the Gnocchi API.
type ListOpts struct {
// Limit allows to limits count of metrics in the response.
Limit int `q:"limit"`
// Marker is used for pagination.
Marker string `q:"marker"`
// SortKey allows to sort metrics in the response by key.
SortKey string `q:"sort_key"`
// SortDir allows to set the direction of sorting.
// Can be `asc` or `desc`.
SortDir string `q:"sort_dir"`
// Creator shows who created the metric.
// Usually it contains concatenated string with values from
// "created_by_user_id" and "created_by_project_id" fields.
Creator string `json:"creator"`
// ProjectID is the Identity project of the metric.
ProjectID string `json:"project_id"`
// UserID is the Identity user of the metric.
UserID string `json:"user_id"`
}
// ToMetricListQuery formats a ListOpts into a query string.
func (opts ListOpts) ToMetricListQuery() (string, error) {
q, err := gophercloud.BuildQueryString(opts)
return q.String(), err
}
// List returns a Pager which allows you to iterate over a collection of
// metrics. It accepts a ListOpts struct, which allows you to limit and sort
// the returned collection for a greater efficiency.
func List(c *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
url := listURL(c)
if opts != nil {
query, err := opts.ToMetricListQuery()
if err != nil {
return pagination.Pager{Err: err}
}
url += query
}
return pagination.NewPager(c, url, func(r pagination.PageResult) pagination.Page {
return MetricPage{pagination.SinglePageBase(r)}
})
}
// Get retrieves a specific Gnocchi metric based on its id.
func Get(c *gophercloud.ServiceClient, metricID string) (r GetResult) {
_, r.Err = c.Get(getURL(c, metricID), &r.Body, nil)
return
}
// CreateOptsBuilder allows to add additional parameters to the
// Create request.
type CreateOptsBuilder interface {
ToMetricCreateMap() (map[string]interface{}, error)
}
// CreateOpts specifies parameters of a new Gnocchi metric.
type CreateOpts struct {
// ArchivePolicyName is a name of the Gnocchi archive policy that describes
// the aggregate storage policy of a metric.
// You can omit it in the request if your Gnocchi installation has the needed
// archive policy rule to assign an archive policy by a metric's name.
ArchivePolicyName string `json:"archive_policy_name,omitempty"`
// Name is a human-readable name for the Gnocchi metric.
// You must provide it if you are also providing a ResourceID in the request.
Name string `json:"name,omitempty"`
// ResourceID identifies the associated Gnocchi resource of the metric.
ResourceID string `json:"resource_id,omitempty"`
// Unit is a unit of measurement for measures of that Gnocchi metric.
Unit string `json:"unit,omitempty"`
}
// ToMetricCreateMap constructs a request body from CreateOpts.
func (opts CreateOpts) ToMetricCreateMap() (map[string]interface{}, error) {
b, err := gophercloud.BuildRequestBody(opts, "")
if err != nil {
return nil, err
}
return b, nil
}
// Create requests the creation of a new Gnocchi metric on the server.
func Create(client *gophercloud.ServiceClient, opts CreateOptsBuilder) (r CreateResult) {
b, err := opts.ToMetricCreateMap()
if err != nil {
r.Err = err
return
}
_, r.Err = client.Post(createURL(client), b, &r.Body, &gophercloud.RequestOpts{
OkCodes: []int{201},
})
return
}
// Delete accepts a unique ID and deletes the Gnocchi metric associated with it.
func Delete(c *gophercloud.ServiceClient, metricID string) (r DeleteResult) {
requestOpts := &gophercloud.RequestOpts{
MoreHeaders: map[string]string{
"Accept": "application/json, */*",
},
}
_, r.Err = c.Delete(deleteURL(c, metricID), requestOpts)
return
}
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