lego/vendor/github.com/linode/linodego/pagination.go
2019-06-24 20:08:55 +02:00

430 lines
15 KiB
Go

package linodego
/**
* Pagination and Filtering types and helpers
*/
import (
"context"
"fmt"
"log"
"strconv"
"gopkg.in/resty.v1"
)
// PageOptions are the pagination parameters for List endpoints
type PageOptions struct {
Page int `url:"page,omitempty" json:"page"`
Pages int `url:"pages,omitempty" json:"pages"`
Results int `url:"results,omitempty" json:"results"`
}
// ListOptions are the pagination and filtering (TODO) parameters for endpoints
type ListOptions struct {
*PageOptions
Filter string
}
// NewListOptions simplified construction of ListOptions using only
// the two writable properties, Page and Filter
func NewListOptions(Page int, Filter string) *ListOptions {
return &ListOptions{PageOptions: &PageOptions{Page: Page}, Filter: Filter}
}
// listHelper abstracts fetching and pagination for GET endpoints that
// do not require any Ids (top level endpoints).
// When opts (or opts.Page) is nil, all pages will be fetched and
// returned in a single (endpoint-specific)PagedResponse
// opts.results and opts.pages will be updated from the API response
func (c *Client) listHelper(ctx context.Context, i interface{}, opts *ListOptions) error {
req := c.R(ctx)
if opts != nil && opts.PageOptions != nil && opts.Page > 0 {
req.SetQueryParam("page", strconv.Itoa(opts.Page))
}
var (
err error
pages int
results int
r *resty.Response
)
if opts != nil && len(opts.Filter) > 0 {
req.SetHeader("X-Filter", opts.Filter)
}
switch v := i.(type) {
case *LinodeKernelsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(LinodeKernelsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*LinodeKernelsPagedResponse).Pages
results = r.Result().(*LinodeKernelsPagedResponse).Results
v.appendData(r.Result().(*LinodeKernelsPagedResponse))
}
case *LinodeTypesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(LinodeTypesPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*LinodeTypesPagedResponse).Pages
results = r.Result().(*LinodeTypesPagedResponse).Results
v.appendData(r.Result().(*LinodeTypesPagedResponse))
}
case *ImagesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(ImagesPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*ImagesPagedResponse).Pages
results = r.Result().(*ImagesPagedResponse).Results
v.appendData(r.Result().(*ImagesPagedResponse))
}
case *StackscriptsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(StackscriptsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*StackscriptsPagedResponse).Pages
results = r.Result().(*StackscriptsPagedResponse).Results
v.appendData(r.Result().(*StackscriptsPagedResponse))
}
case *InstancesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(InstancesPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*InstancesPagedResponse).Pages
results = r.Result().(*InstancesPagedResponse).Results
v.appendData(r.Result().(*InstancesPagedResponse))
}
case *RegionsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(RegionsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*RegionsPagedResponse).Pages
results = r.Result().(*RegionsPagedResponse).Results
v.appendData(r.Result().(*RegionsPagedResponse))
}
case *VolumesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(VolumesPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*VolumesPagedResponse).Pages
results = r.Result().(*VolumesPagedResponse).Results
v.appendData(r.Result().(*VolumesPagedResponse))
}
case *DomainsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(DomainsPagedResponse{}).Get(v.endpoint(c))); err == nil {
response, ok := r.Result().(*DomainsPagedResponse)
if !ok {
return fmt.Errorf("Response is not a *DomainsPagedResponse")
}
pages = response.Pages
results = response.Results
v.appendData(response)
}
case *EventsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(EventsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*EventsPagedResponse).Pages
results = r.Result().(*EventsPagedResponse).Results
v.appendData(r.Result().(*EventsPagedResponse))
}
case *LongviewSubscriptionsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(LongviewSubscriptionsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*LongviewSubscriptionsPagedResponse).Pages
results = r.Result().(*LongviewSubscriptionsPagedResponse).Results
v.appendData(r.Result().(*LongviewSubscriptionsPagedResponse))
}
case *LongviewClientsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(LongviewClientsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*LongviewClientsPagedResponse).Pages
results = r.Result().(*LongviewClientsPagedResponse).Results
v.appendData(r.Result().(*LongviewClientsPagedResponse))
}
case *IPAddressesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(IPAddressesPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*IPAddressesPagedResponse).Pages
results = r.Result().(*IPAddressesPagedResponse).Results
v.appendData(r.Result().(*IPAddressesPagedResponse))
}
case *IPv6PoolsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(IPv6PoolsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*IPv6PoolsPagedResponse).Pages
results = r.Result().(*IPv6PoolsPagedResponse).Results
v.appendData(r.Result().(*IPv6PoolsPagedResponse))
}
case *IPv6RangesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(IPv6RangesPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*IPv6RangesPagedResponse).Pages
results = r.Result().(*IPv6RangesPagedResponse).Results
v.appendData(r.Result().(*IPv6RangesPagedResponse))
// @TODO consolidate this type with IPv6PoolsPagedResponse?
}
case *SSHKeysPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(SSHKeysPagedResponse{}).Get(v.endpoint(c))); err == nil {
response, ok := r.Result().(*SSHKeysPagedResponse)
if !ok {
return fmt.Errorf("Response is not a *SSHKeysPagedResponse")
}
pages = response.Pages
results = response.Results
v.appendData(response)
}
case *TicketsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(TicketsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*TicketsPagedResponse).Pages
results = r.Result().(*TicketsPagedResponse).Results
v.appendData(r.Result().(*TicketsPagedResponse))
}
case *InvoicesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(InvoicesPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*InvoicesPagedResponse).Pages
results = r.Result().(*InvoicesPagedResponse).Results
v.appendData(r.Result().(*InvoicesPagedResponse))
}
case *NotificationsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(NotificationsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*NotificationsPagedResponse).Pages
results = r.Result().(*NotificationsPagedResponse).Results
v.appendData(r.Result().(*NotificationsPagedResponse))
}
case *NodeBalancersPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(NodeBalancersPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*NodeBalancersPagedResponse).Pages
results = r.Result().(*NodeBalancersPagedResponse).Results
v.appendData(r.Result().(*NodeBalancersPagedResponse))
}
case *TagsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(TagsPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*TagsPagedResponse).Pages
results = r.Result().(*TagsPagedResponse).Results
v.appendData(r.Result().(*TagsPagedResponse))
}
case *TokensPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(TokensPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*TokensPagedResponse).Pages
results = r.Result().(*TokensPagedResponse).Results
v.appendData(r.Result().(*TokensPagedResponse))
}
case *UsersPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(UsersPagedResponse{}).Get(v.endpoint(c))); err == nil {
pages = r.Result().(*UsersPagedResponse).Pages
results = r.Result().(*UsersPagedResponse).Results
v.appendData(r.Result().(*UsersPagedResponse))
}
/**
case AccountOauthClientsPagedResponse:
case AccountPaymentsPagedResponse:
case ProfileAppsPagedResponse:
case ProfileWhitelistPagedResponse:
case ManagedContactsPagedResponse:
case ManagedCredentialsPagedResponse:
case ManagedIssuesPagedResponse:
case ManagedLinodeSettingsPagedResponse:
case ManagedServicesPagedResponse:
**/
default:
log.Fatalf("listHelper interface{} %+v used", i)
}
if err != nil {
return err
}
if opts == nil {
for page := 2; page <= pages; page = page + 1 {
if err := c.listHelper(ctx, i, &ListOptions{PageOptions: &PageOptions{Page: page}}); err != nil {
return err
}
}
} else {
if opts.PageOptions == nil {
opts.PageOptions = &PageOptions{}
}
if opts.Page == 0 {
for page := 2; page <= pages; page = page + 1 {
opts.Page = page
if err := c.listHelper(ctx, i, opts); err != nil {
return err
}
}
}
opts.Results = results
opts.Pages = pages
}
return nil
}
// listHelperWithID abstracts fetching and pagination for GET endpoints that
// require an Id (second level endpoints).
// When opts (or opts.Page) is nil, all pages will be fetched and
// returned in a single (endpoint-specific)PagedResponse
// opts.results and opts.pages will be updated from the API response
func (c *Client) listHelperWithID(ctx context.Context, i interface{}, idRaw interface{}, opts *ListOptions) error {
req := c.R(ctx)
if opts != nil && opts.Page > 0 {
req.SetQueryParam("page", strconv.Itoa(opts.Page))
}
var (
err error
pages int
results int
r *resty.Response
)
id, _ := idRaw.(int)
if opts != nil && len(opts.Filter) > 0 {
req.SetHeader("X-Filter", opts.Filter)
}
switch v := i.(type) {
case *InvoiceItemsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(InvoiceItemsPagedResponse{}).Get(v.endpointWithID(c, id))); err == nil {
pages = r.Result().(*InvoiceItemsPagedResponse).Pages
results = r.Result().(*InvoiceItemsPagedResponse).Results
v.appendData(r.Result().(*InvoiceItemsPagedResponse))
}
case *DomainRecordsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(DomainRecordsPagedResponse{}).Get(v.endpointWithID(c, id))); err == nil {
response, ok := r.Result().(*DomainRecordsPagedResponse)
if !ok {
return fmt.Errorf("Response is not a *DomainRecordsPagedResponse")
}
pages = response.Pages
results = response.Results
v.appendData(response)
}
case *InstanceConfigsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(InstanceConfigsPagedResponse{}).Get(v.endpointWithID(c, id))); err == nil {
pages = r.Result().(*InstanceConfigsPagedResponse).Pages
results = r.Result().(*InstanceConfigsPagedResponse).Results
v.appendData(r.Result().(*InstanceConfigsPagedResponse))
}
case *InstanceDisksPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(InstanceDisksPagedResponse{}).Get(v.endpointWithID(c, id))); err == nil {
pages = r.Result().(*InstanceDisksPagedResponse).Pages
results = r.Result().(*InstanceDisksPagedResponse).Results
v.appendData(r.Result().(*InstanceDisksPagedResponse))
}
case *NodeBalancerConfigsPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(NodeBalancerConfigsPagedResponse{}).Get(v.endpointWithID(c, id))); err == nil {
pages = r.Result().(*NodeBalancerConfigsPagedResponse).Pages
results = r.Result().(*NodeBalancerConfigsPagedResponse).Results
v.appendData(r.Result().(*NodeBalancerConfigsPagedResponse))
}
case *InstanceVolumesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(InstanceVolumesPagedResponse{}).Get(v.endpointWithID(c, id))); err == nil {
pages = r.Result().(*InstanceVolumesPagedResponse).Pages
results = r.Result().(*InstanceVolumesPagedResponse).Results
v.appendData(r.Result().(*InstanceVolumesPagedResponse))
}
case *TaggedObjectsPagedResponse:
idStr := idRaw.(string)
if r, err = coupleAPIErrors(req.SetResult(TaggedObjectsPagedResponse{}).Get(v.endpointWithID(c, idStr))); err == nil {
pages = r.Result().(*TaggedObjectsPagedResponse).Pages
results = r.Result().(*TaggedObjectsPagedResponse).Results
v.appendData(r.Result().(*TaggedObjectsPagedResponse))
}
/**
case TicketAttachmentsPagedResponse:
if r, err = req.SetResult(v).Get(v.endpoint(c)); r.Error() != nil {
return NewError(r)
} else if err == nil {
pages = r.Result().(*TicketAttachmentsPagedResponse).Pages
results = r.Result().(*TicketAttachmentsPagedResponse).Results
v.appendData(r.Result().(*TicketAttachmentsPagedResponse))
}
case TicketRepliesPagedResponse:
if r, err = req.SetResult(v).Get(v.endpoint(c)); r.Error() != nil {
return NewError(r)
} else if err == nil {
pages = r.Result().(*TicketRepliesPagedResponse).Pages
results = r.Result().(*TicketRepliesPagedResponse).Results
v.appendData(r.Result().(*TicketRepliesPagedResponse))
}
**/
default:
log.Fatalf("Unknown listHelperWithID interface{} %T used", i)
}
if err != nil {
return err
}
if opts == nil {
for page := 2; page <= pages; page = page + 1 {
if err := c.listHelperWithID(ctx, i, id, &ListOptions{PageOptions: &PageOptions{Page: page}}); err != nil {
return err
}
}
} else {
if opts.PageOptions == nil {
opts.PageOptions = &PageOptions{}
}
if opts.Page == 0 {
for page := 2; page <= pages; page = page + 1 {
opts.Page = page
if err := c.listHelperWithID(ctx, i, id, opts); err != nil {
return err
}
}
}
opts.Results = results
opts.Pages = pages
}
return nil
}
// listHelperWithTwoIDs abstracts fetching and pagination for GET endpoints that
// require twos IDs (third level endpoints).
// When opts (or opts.Page) is nil, all pages will be fetched and
// returned in a single (endpoint-specific)PagedResponse
// opts.results and opts.pages will be updated from the API response
func (c *Client) listHelperWithTwoIDs(ctx context.Context, i interface{}, firstID, secondID int, opts *ListOptions) error {
req := c.R(ctx)
if opts != nil && opts.Page > 0 {
req.SetQueryParam("page", strconv.Itoa(opts.Page))
}
var (
err error
pages int
results int
r *resty.Response
)
if opts != nil && len(opts.Filter) > 0 {
req.SetHeader("X-Filter", opts.Filter)
}
switch v := i.(type) {
case *NodeBalancerNodesPagedResponse:
if r, err = coupleAPIErrors(req.SetResult(NodeBalancerNodesPagedResponse{}).Get(v.endpointWithTwoIDs(c, firstID, secondID))); err == nil {
pages = r.Result().(*NodeBalancerNodesPagedResponse).Pages
results = r.Result().(*NodeBalancerNodesPagedResponse).Results
v.appendData(r.Result().(*NodeBalancerNodesPagedResponse))
}
default:
log.Fatalf("Unknown listHelperWithTwoIDs interface{} %T used", i)
}
if err != nil {
return err
}
if opts == nil {
for page := 2; page <= pages; page = page + 1 {
if err := c.listHelper(ctx, i, &ListOptions{PageOptions: &PageOptions{Page: page}}); err != nil {
return err
}
}
} else {
if opts.PageOptions == nil {
opts.PageOptions = &PageOptions{}
}
if opts.Page == 0 {
for page := 2; page <= pages; page = page + 1 {
opts.Page = page
if err := c.listHelperWithTwoIDs(ctx, i, firstID, secondID, opts); err != nil {
return err
}
}
}
opts.Results = results
opts.Pages = pages
}
return nil
}