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use delta queries for calendar events #2154

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Jan 19, 2023
Merged

use delta queries for calendar events #2154

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c94ffdb
use delta queries for calendar events
ryanfkeepers Jan 17, 2023
2f973c4
comment out events test
ryanfkeepers Jan 18, 2023
00047de
Merge branch 'main' into issue-2022-poc
aviator-app[bot] Jan 18, 2023
60c45a3
correct test expectations for restore quant
ryanfkeepers Jan 19, 2023
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6 changes: 3 additions & 3 deletions src/internal/connector/data_collections_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ func (suite *ConnectorDataCollectionIntegrationSuite) TestExchangeDataCollection
getSelector func(t *testing.T) selectors.Selector
}{
{
name: suite.user + " Email",
name: "Email",
getSelector: func(t *testing.T) selectors.Selector {
sel := selectors.NewExchangeBackup(selUsers)
sel.Include(sel.MailFolders([]string{exchange.DefaultMailFolder}, selectors.PrefixMatch()))
Expand All @@ -76,7 +76,7 @@ func (suite *ConnectorDataCollectionIntegrationSuite) TestExchangeDataCollection
},
},
{
name: suite.user + " Contacts",
name: "Contacts",
getSelector: func(t *testing.T) selectors.Selector {
sel := selectors.NewExchangeBackup(selUsers)
sel.Include(sel.ContactFolders([]string{exchange.DefaultContactFolder}, selectors.PrefixMatch()))
Expand All @@ -85,7 +85,7 @@ func (suite *ConnectorDataCollectionIntegrationSuite) TestExchangeDataCollection
},
},
// {
// name: suite.user + " Events",
// name: "Events",
// getSelector: func(t *testing.T) selectors.Selector {
// sel := selectors.NewExchangeBackup(selUsers)
// sel.Include(sel.EventCalendars([]string{exchange.DefaultCalendar}, selectors.PrefixMatch()))
Expand Down
61 changes: 44 additions & 17 deletions src/internal/connector/exchange/api/events.go
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Original file line number Diff line number Diff line change
Expand Up @@ -144,29 +144,25 @@ func (c Events) EnumerateContainers(
// item pager
// ---------------------------------------------------------------------------

type eventWrapper struct {
models.EventCollectionResponseable
}

func (ew eventWrapper) GetOdataDeltaLink() *string {
return nil
}

var _ itemPager = &eventPager{}

const (
eventBetaDeltaURLTemplate = "https://graph.microsoft.com/beta/users/%s/calendars/%s/events/delta"
)

type eventPager struct {
gs graph.Servicer
builder *users.ItemCalendarsItemEventsRequestBuilder
options *users.ItemCalendarsItemEventsRequestBuilderGetRequestConfiguration
builder *users.ItemCalendarsItemEventsDeltaRequestBuilder
options *users.ItemCalendarsItemEventsDeltaRequestBuilderGetRequestConfiguration
}

func (p *eventPager) getPage(ctx context.Context) (pageLinker, error) {
resp, err := p.builder.Get(ctx, p.options)
return eventWrapper{resp}, err
return resp, err
}

func (p *eventPager) setNext(nextLink string) {
p.builder = users.NewItemCalendarsItemEventsRequestBuilder(nextLink, p.gs.Adapter())
p.builder = users.NewItemCalendarsItemEventsDeltaRequestBuilder(nextLink, p.gs.Adapter())
}

func (p *eventPager) valuesIn(pl pageLinker) ([]getIDAndAddtler, error) {
Expand All @@ -182,23 +178,54 @@ func (c Events) GetAddedAndRemovedItemIDs(
return nil, nil, DeltaUpdate{}, err
}

var errs *multierror.Error
var (
resetDelta bool
errs *multierror.Error
)

options, err := optionsForEventsByCalendar([]string{"id"})
options, err := optionsForEventsByCalendarDelta([]string{"id"})
if err != nil {
return nil, nil, DeltaUpdate{}, err
}

builder := service.Client().UsersById(user).CalendarsById(calendarID).Events()
if len(oldDelta) > 0 {
builder := users.NewItemCalendarsItemEventsDeltaRequestBuilder(oldDelta, service.Adapter())
pgr := &eventPager{service, builder, options}

added, removed, deltaURL, err := getItemsAddedAndRemovedFromContainer(ctx, pgr)
// note: happy path, not the error condition
if err == nil {
return added, removed, DeltaUpdate{deltaURL, false}, errs.ErrorOrNil()
}
// only return on error if it is NOT a delta issue.
// on bad deltas we retry the call with the regular builder
if graph.IsErrInvalidDelta(err) == nil {
return nil, nil, DeltaUpdate{}, err
}

resetDelta = true
errs = nil
}

// Graph SDK only supports delta queries against events on the beta version, so we're
// manufacturing use of the beta version url to make the call instead.
// See: https://learn.microsoft.com/ko-kr/graph/api/event-delta?view=graph-rest-beta&tabs=http
// Note that the delta item body is skeletal compared to the actual event struct. Lucky
// for us, we only need the item ID. As a result, even though we hacked the version, the
Comment on lines +213 to +214
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can you check that items don't get skipped accidentally due to us selecting the bare minimum fields? Tbh, I'm not sure if this is a feature or a "bug" in how Graph works, but using $select can sometimes cause a delta endpoint to skip returning results if they don't match what's in the $select. For example, not having isRead in the select for emails will cause emails where the isRead flag has been changed to be skipped because it doesn't update the mod time. This will take some playing around and is probably easiest to do with GraphExplorer/postman

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Hmm, good call out. I'll do some manual testing. This might be especially interesting in this case, because the delta body for an event are only able to contain the id, startTime, and endTime. Hopefully the delta will catch changes on unrepresented properties, like renames and etc.

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Alright, two findings.

  1. everything works. Changes to name, desc, attendees, etc, are all picked up by the delta.
  2. we're not allowed to select values in the first place (see the error below). If anything, we're lucky that the client is tossing the use of options for us.
    "error": {
        "code": "ErrorInvalidUrlQuery",
        "message": "The following parameters are not supported with change tracking over the 'SyncEvents' resource: '$orderby, $filter, $select, $expand, $search'."
    }

// response body parses properly into the v1.0 structs and complies with our wanted interfaces.
// Likewise, the NextLink and DeltaLink odata tags carry our hack forward, so the rest of the code
// works as intended (until, at least, we want to _not_ call the beta anymore).
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👍

rawURL := fmt.Sprintf(eventBetaDeltaURLTemplate, user, calendarID)
builder := users.NewItemCalendarsItemEventsDeltaRequestBuilder(rawURL, service.Adapter())
pgr := &eventPager{service, builder, options}

added, _, _, err := getItemsAddedAndRemovedFromContainer(ctx, pgr)
added, removed, deltaURL, err := getItemsAddedAndRemovedFromContainer(ctx, pgr)
if err != nil {
return nil, nil, DeltaUpdate{}, err
}

// Events don't have a delta endpoint so just return an empty string.
return added, nil, DeltaUpdate{}, errs.ErrorOrNil()
return added, removed, DeltaUpdate{deltaURL, resetDelta}, errs.ErrorOrNil()
}

// ---------------------------------------------------------------------------
Expand Down
8 changes: 4 additions & 4 deletions src/internal/connector/exchange/api/options.go
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Original file line number Diff line number Diff line change
Expand Up @@ -214,19 +214,19 @@ func optionsForContactFoldersItemDelta(
}

// optionsForEvents ensures a valid option inputs for `exchange.Events` when selected from within a Calendar
func optionsForEventsByCalendar(
func optionsForEventsByCalendarDelta(
moreOps []string,
) (*users.ItemCalendarsItemEventsRequestBuilderGetRequestConfiguration, error) {
) (*users.ItemCalendarsItemEventsDeltaRequestBuilderGetRequestConfiguration, error) {
selecting, err := buildOptions(moreOps, fieldsForEvents)
if err != nil {
return nil, err
}

requestParameters := &users.ItemCalendarsItemEventsRequestBuilderGetQueryParameters{
requestParameters := &users.ItemCalendarsItemEventsDeltaRequestBuilderGetQueryParameters{
Select: selecting,
}

options := &users.ItemCalendarsItemEventsRequestBuilderGetRequestConfiguration{
options := &users.ItemCalendarsItemEventsDeltaRequestBuilderGetRequestConfiguration{
QueryParameters: requestParameters,
}

Expand Down
7 changes: 7 additions & 0 deletions src/internal/connector/exchange/data_collections_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -313,6 +313,13 @@ func (suite *DataCollectionsIntegrationSuite) TestDelta() {
selectors.PrefixMatch(),
)[0],
},
{
name: "Events",
scope: selectors.NewExchangeBackup(users).EventCalendars(
[]string{DefaultCalendar},
selectors.PrefixMatch(),
)[0],
},
}
for _, test := range tests {
suite.T().Run(test.name, func(t *testing.T) {
Expand Down
44 changes: 44 additions & 0 deletions src/internal/operations/backup_integration_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -688,6 +688,12 @@ func (suite *BackupOpIntegrationSuite) TestBackup_Run_exchangeIncrementals() {
)
}

eventDBF := func(id, timeStamp, subject, body string) []byte {
return mockconnector.GetMockEventWith(
suite.user, subject, body, body,
now, now, false)
}

dataset := map[path.CategoryType]struct {
dbf dataBuilderFunc
dests map[string]contDeets
Expand All @@ -706,6 +712,13 @@ func (suite *BackupOpIntegrationSuite) TestBackup_Run_exchangeIncrementals() {
container2: {},
},
},
path.EventsCategory: {
dbf: eventDBF,
dests: map[string]contDeets{
container1: {},
container2: {},
},
},
}

for category, gen := range dataset {
Expand Down Expand Up @@ -820,6 +833,11 @@ func (suite *BackupOpIntegrationSuite) TestBackup_Run_exchangeIncrementals() {
t,
cli.ContactFoldersById(containerID).Delete(ctx, nil),
"deleting a contacts folder")
case path.EventsCategory:
require.NoError(
t,
cli.CalendarsById(containerID).Delete(ctx, nil),
"deleting a calendar")
}
}
},
Expand Down Expand Up @@ -897,6 +915,16 @@ func (suite *BackupOpIntegrationSuite) TestBackup_Run_exchangeIncrementals() {
body.SetDisplayName(&containerRename)
_, err = ccf.Patch(ctx, body, nil)
require.NoError(t, err, "updating contact folder name")

case path.EventsCategory:
ccf := cli.CalendarsById(containerID)

body, err := ccf.Get(ctx, nil)
require.NoError(t, err, "getting calendar")

body.SetName(&containerRename)
_, err = ccf.Patch(ctx, body, nil)
require.NoError(t, err, "updating calendar name")
}
}
},
Expand Down Expand Up @@ -926,6 +954,14 @@ func (suite *BackupOpIntegrationSuite) TestBackup_Run_exchangeIncrementals() {

_, err = cli.ContactFoldersById(containerID).Contacts().Post(ctx, body, nil)
require.NoError(t, err, "posting contact item")

case path.EventsCategory:
_, itemData := generateItemData(t, category, suite.user, eventDBF)
body, err := support.CreateEventFromBytes(itemData)
require.NoError(t, err, "transforming event bytes to eventable")

_, err = cli.CalendarsById(containerID).Events().Post(ctx, body, nil)
require.NoError(t, err, "posting events item")
}
}
},
Expand Down Expand Up @@ -955,6 +991,14 @@ func (suite *BackupOpIntegrationSuite) TestBackup_Run_exchangeIncrementals() {

err = cli.ContactsById(ids[0]).Delete(ctx, nil)
require.NoError(t, err, "deleting contact item: %s", support.ConnectorStackErrorTrace(err))

case path.EventsCategory:
ids, _, _, err := ac.Events().GetAddedAndRemovedItemIDs(ctx, suite.user, containerID, "")
require.NoError(t, err, "getting event ids")
require.NotEmpty(t, ids, "event ids in folder")

err = cli.CalendarsById(ids[0]).Delete(ctx, nil)
require.NoError(t, err, "deleting calendar: %s", support.ConnectorStackErrorTrace(err))
}
}
},
Expand Down