google-nomulus/java/google/registry/batch/ExpandRecurringBillingEventsAction.java
mcilwain e2528875b2 Merge DomainResource into DomainBase
This eliminates the use of Objectify polymorphism for EPP resources entirely
(yay!), which makes the Registry 3.0 database migration easier.

It is unfortunate that the naming parallelism of EppResources is lost between
ContactResource, HostResource, and DomainResource, but the actual type as far as
Datastore was concerned was DomainBase all along, and it would be a much more
substantial data migration to allow us to continue using the class name
DomainResource now that we're no longer using Objectify polymorphism. This
simply isn't worth it.

This also removes the polymorphic Datastore indexes (which will no longer
function as of this change). The non-polymorphic replacement indexes were added
in []

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=230930546
2019-01-28 15:57:10 -05:00

329 lines
15 KiB
Java

// Copyright 2017 The Nomulus Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package google.registry.batch;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.collect.ImmutableSet.toImmutableSet;
import static com.google.common.collect.Sets.difference;
import static google.registry.mapreduce.MapreduceRunner.PARAM_DRY_RUN;
import static google.registry.mapreduce.inputs.EppResourceInputs.createChildEntityInput;
import static google.registry.model.common.Cursor.CursorType.RECURRING_BILLING;
import static google.registry.model.domain.Period.Unit.YEARS;
import static google.registry.model.ofy.ObjectifyService.ofy;
import static google.registry.model.reporting.HistoryEntry.Type.DOMAIN_AUTORENEW;
import static google.registry.pricing.PricingEngineProxy.getDomainRenewCost;
import static google.registry.util.CollectionUtils.union;
import static google.registry.util.DateTimeUtils.START_OF_TIME;
import static google.registry.util.DateTimeUtils.earliestOf;
import static google.registry.util.DomainNameUtils.getTldFromDomainName;
import com.google.appengine.tools.mapreduce.Mapper;
import com.google.appengine.tools.mapreduce.Reducer;
import com.google.appengine.tools.mapreduce.ReducerInput;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Range;
import com.google.common.collect.Streams;
import com.google.common.flogger.FluentLogger;
import com.googlecode.objectify.Key;
import google.registry.mapreduce.MapreduceRunner;
import google.registry.mapreduce.inputs.NullInput;
import google.registry.model.EppResource;
import google.registry.model.ImmutableObject;
import google.registry.model.billing.BillingEvent;
import google.registry.model.billing.BillingEvent.Flag;
import google.registry.model.billing.BillingEvent.OneTime;
import google.registry.model.billing.BillingEvent.Recurring;
import google.registry.model.common.Cursor;
import google.registry.model.domain.DomainBase;
import google.registry.model.domain.Period;
import google.registry.model.registry.Registry;
import google.registry.model.reporting.DomainTransactionRecord;
import google.registry.model.reporting.DomainTransactionRecord.TransactionReportField;
import google.registry.model.reporting.HistoryEntry;
import google.registry.request.Action;
import google.registry.request.Parameter;
import google.registry.request.Response;
import google.registry.request.auth.Auth;
import google.registry.util.Clock;
import java.util.Optional;
import java.util.Set;
import javax.inject.Inject;
import org.joda.money.Money;
import org.joda.time.DateTime;
/**
* A mapreduce that expands {@link Recurring} billing events into synthetic {@link OneTime} events.
*
* <p>The cursor used throughout this mapreduce (overridden if necessary using the parameter {@code
* cursorTime}) represents the inclusive lower bound on the range of billing times that will be
* expanded as a result of the job (the exclusive upper bound being the execution time of the job).
*/
@Action(
service = Action.Service.BACKEND,
path = "/_dr/task/expandRecurringBillingEvents",
auth = Auth.AUTH_INTERNAL_ONLY)
public class ExpandRecurringBillingEventsAction implements Runnable {
public static final String PARAM_CURSOR_TIME = "cursorTime";
private static final String ERROR_COUNTER = "errors";
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
@Inject Clock clock;
@Inject MapreduceRunner mrRunner;
@Inject @Parameter(PARAM_DRY_RUN) boolean isDryRun;
@Inject @Parameter(PARAM_CURSOR_TIME) Optional<DateTime> cursorTimeParam;
@Inject Response response;
@Inject ExpandRecurringBillingEventsAction() {}
@Override
public void run() {
Cursor cursor = ofy().load().key(Cursor.createGlobalKey(RECURRING_BILLING)).now();
DateTime executeTime = clock.nowUtc();
DateTime persistedCursorTime = (cursor == null ? START_OF_TIME : cursor.getCursorTime());
DateTime cursorTime = cursorTimeParam.orElse(persistedCursorTime);
checkArgument(
cursorTime.isBefore(executeTime),
"Cursor time must be earlier than execution time.");
logger.atInfo().log(
"Running Recurring billing event expansion for billing time range [%s, %s).",
cursorTime, executeTime);
mrRunner
.setJobName("Expand Recurring billing events into synthetic OneTime events.")
.setModuleName("backend")
.runMapreduce(
new ExpandRecurringBillingEventsMapper(isDryRun, cursorTime, clock.nowUtc()),
new ExpandRecurringBillingEventsReducer(isDryRun, persistedCursorTime),
// Add an extra shard that maps over a null recurring event (see the mapper for why).
ImmutableList.of(
new NullInput<>(),
createChildEntityInput(
ImmutableSet.of(DomainBase.class), ImmutableSet.of(Recurring.class))))
.sendLinkToMapreduceConsole(response);
}
/** Mapper to expand {@link Recurring} billing events into synthetic {@link OneTime} events. */
public static class ExpandRecurringBillingEventsMapper
extends Mapper<Recurring, DateTime, DateTime> {
private static final long serialVersionUID = 8376442755556228455L;
private final boolean isDryRun;
private final DateTime cursorTime;
private final DateTime executeTime;
public ExpandRecurringBillingEventsMapper(
boolean isDryRun, DateTime cursorTime, DateTime executeTime) {
this.isDryRun = isDryRun;
this.cursorTime = cursorTime;
this.executeTime = executeTime;
}
@Override
public final void map(final Recurring recurring) {
// This single emit forces the reducer to run at the end of the map job, so that a mapper
// that runs without error will advance the cursor at the end of processing (unless this was
// a dry run, in which case the cursor should not be advanced).
if (recurring == null) {
emit(cursorTime, executeTime);
return;
}
getContext().incrementCounter("Recurring billing events encountered");
// Ignore any recurring billing events that have yet to apply.
if (recurring.getEventTime().isAfter(executeTime)
// This second case occurs when a domain is transferred or deleted before first renewal.
|| recurring.getRecurrenceEndTime().isBefore(recurring.getEventTime())) {
getContext().incrementCounter("Recurring billing events ignored");
return;
}
int numBillingEventsSaved = 0;
try {
numBillingEventsSaved = ofy().transactNew(() -> {
ImmutableSet.Builder<OneTime> syntheticOneTimesBuilder =
new ImmutableSet.Builder<>();
final Registry tld = Registry.get(getTldFromDomainName(recurring.getTargetId()));
// Determine the complete set of times at which this recurring event should occur
// (up to and including the runtime of the mapreduce).
Iterable<DateTime> eventTimes =
recurring.getRecurrenceTimeOfYear().getInstancesInRange(Range.closed(
recurring.getEventTime(),
earliestOf(recurring.getRecurrenceEndTime(), executeTime)));
// Convert these event times to billing times
final ImmutableSet<DateTime> billingTimes =
getBillingTimesInScope(eventTimes, cursorTime, executeTime, tld);
Key<? extends EppResource> domainKey = recurring.getParentKey().getParent();
Iterable<OneTime> oneTimesForDomain =
ofy().load().type(OneTime.class).ancestor(domainKey);
// Determine the billing times that already have OneTime events persisted.
ImmutableSet<DateTime> existingBillingTimes =
getExistingBillingTimes(oneTimesForDomain, recurring);
ImmutableSet.Builder<HistoryEntry> historyEntriesBuilder =
new ImmutableSet.Builder<>();
// Create synthetic OneTime events for all billing times that do not yet have an event
// persisted.
for (DateTime billingTime : difference(billingTimes, existingBillingTimes)) {
// Construct a new HistoryEntry that parents over the OneTime
HistoryEntry historyEntry = new HistoryEntry.Builder()
.setBySuperuser(false)
.setClientId(recurring.getClientId())
.setModificationTime(ofy().getTransactionTime())
.setParent(domainKey)
.setPeriod(Period.create(1, YEARS))
.setReason("Domain autorenewal by ExpandRecurringBillingEventsAction")
.setRequestedByRegistrar(false)
.setType(DOMAIN_AUTORENEW)
.setDomainTransactionRecords(
ImmutableSet.of(
DomainTransactionRecord.create(
tld.getTldStr(),
// We report this when the autorenew grace period ends
billingTime,
TransactionReportField.netRenewsFieldFromYears(1),
1)))
.build();
historyEntriesBuilder.add(historyEntry);
DateTime eventTime = billingTime.minus(tld.getAutoRenewGracePeriodLength());
// Determine the cost for a one-year renewal.
Money renewCost = getDomainRenewCost(recurring.getTargetId(), eventTime, 1);
syntheticOneTimesBuilder.add(new OneTime.Builder()
.setBillingTime(billingTime)
.setClientId(recurring.getClientId())
.setCost(renewCost)
.setEventTime(eventTime)
.setFlags(union(recurring.getFlags(), Flag.SYNTHETIC))
.setParent(historyEntry)
.setPeriodYears(1)
.setReason(recurring.getReason())
.setSyntheticCreationTime(executeTime)
.setCancellationMatchingBillingEvent(Key.create(recurring))
.setTargetId(recurring.getTargetId())
.build());
}
Set<HistoryEntry> historyEntries = historyEntriesBuilder.build();
Set<OneTime> syntheticOneTimes = syntheticOneTimesBuilder.build();
if (!isDryRun) {
ImmutableSet<ImmutableObject> entitiesToSave =
new ImmutableSet.Builder<ImmutableObject>()
.addAll(historyEntries)
.addAll(syntheticOneTimes)
.build();
ofy().save().entities(entitiesToSave).now();
}
return syntheticOneTimes.size();
});
} catch (Throwable t) {
getContext().incrementCounter("error: " + t.getClass().getSimpleName());
getContext().incrementCounter(ERROR_COUNTER);
throw new RuntimeException(
String.format(
"Error while expanding Recurring billing events for %d", recurring.getId()),
t);
}
if (!isDryRun) {
getContext().incrementCounter("Saved OneTime billing events", numBillingEventsSaved);
} else {
getContext().incrementCounter(
"Generated OneTime billing events (dry run)", numBillingEventsSaved);
}
}
/**
* Filters a set of {@link DateTime}s down to event times that are in scope for a particular
* mapreduce run, given the cursor time and the mapreduce execution time.
*/
private ImmutableSet<DateTime> getBillingTimesInScope(
Iterable<DateTime> eventTimes,
DateTime cursorTime,
DateTime executeTime,
final Registry tld) {
return Streams.stream(eventTimes)
.map(eventTime -> eventTime.plus(tld.getAutoRenewGracePeriodLength()))
.filter(Range.closedOpen(cursorTime, executeTime))
.collect(toImmutableSet());
}
/**
* Determines an {@link ImmutableSet} of {@link DateTime}s that have already been persisted
* for a given recurring billing event.
*/
private ImmutableSet<DateTime> getExistingBillingTimes(
Iterable<BillingEvent.OneTime> oneTimesForDomain,
final BillingEvent.Recurring recurringEvent) {
return Streams.stream(oneTimesForDomain)
.filter(
billingEvent ->
Key.create(recurringEvent)
.equals(billingEvent.getCancellationMatchingBillingEvent()))
.map(OneTime::getBillingTime)
.collect(toImmutableSet());
}
}
/**
* "Reducer" to advance the cursor after all map jobs have been completed. The NullInput into the
* mapper will cause the mapper to emit one timestamp pair (current cursor and execution time),
* and the cursor will be advanced (and the timestamps logged) at the end of a successful
* mapreduce.
*/
public static class ExpandRecurringBillingEventsReducer
extends Reducer<DateTime, DateTime, Void> {
private final boolean isDryRun;
private final DateTime expectedPersistedCursorTime;
public ExpandRecurringBillingEventsReducer(
boolean isDryRun, DateTime expectedPersistedCursorTime) {
this.isDryRun = isDryRun;
this.expectedPersistedCursorTime = expectedPersistedCursorTime;
}
@Override
public void reduce(final DateTime cursorTime, final ReducerInput<DateTime> executionTimeInput) {
if (getContext().getCounter(ERROR_COUNTER).getValue() > 0) {
logger.atSevere().log(
"One or more errors logged during recurring event expansion. Cursor will"
+ " not be advanced.");
return;
}
final DateTime executionTime = executionTimeInput.next();
logger.atInfo().log(
"Recurring event expansion %s complete for billing event range [%s, %s).",
isDryRun ? "(dry run) " : "", cursorTime, executionTime);
ofy()
.transact(
() -> {
Cursor cursor = ofy().load().key(Cursor.createGlobalKey(RECURRING_BILLING)).now();
DateTime currentCursorTime =
(cursor == null ? START_OF_TIME : cursor.getCursorTime());
if (!currentCursorTime.equals(expectedPersistedCursorTime)) {
logger.atSevere().log(
"Current cursor position %s does not match expected cursor position %s.",
currentCursorTime, expectedPersistedCursorTime);
return;
}
if (!isDryRun) {
ofy().save().entity(Cursor.createGlobal(RECURRING_BILLING, executionTime));
}
});
}
}
}