/
DefaultSubscriptionBase.java
669 lines (580 loc) · 27.3 KB
/
DefaultSubscriptionBase.java
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/*
* Copyright 2010-2013 Ning, Inc.
* Copyright 2014-2015 Groupon, Inc
* Copyright 2014-2015 The Billing Project, LLC
*
* The Billing Project licenses this file to you 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 org.killbill.billing.subscription.api.user;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.UUID;
import javax.annotation.Nullable;
import org.joda.time.DateTime;
import org.killbill.billing.catalog.api.BillingActionPolicy;
import org.killbill.billing.catalog.api.BillingPeriod;
import org.killbill.billing.catalog.api.Catalog;
import org.killbill.billing.catalog.api.CatalogApiException;
import org.killbill.billing.catalog.api.Plan;
import org.killbill.billing.catalog.api.PlanPhase;
import org.killbill.billing.catalog.api.PlanPhasePriceOverride;
import org.killbill.billing.catalog.api.PlanPhaseSpecifier;
import org.killbill.billing.catalog.api.PriceList;
import org.killbill.billing.catalog.api.Product;
import org.killbill.billing.catalog.api.ProductCategory;
import org.killbill.billing.entitlement.api.Entitlement.EntitlementSourceType;
import org.killbill.billing.entitlement.api.Entitlement.EntitlementState;
import org.killbill.billing.entity.EntityBase;
import org.killbill.billing.subscription.api.SubscriptionBase;
import org.killbill.billing.subscription.api.SubscriptionBaseApiService;
import org.killbill.billing.subscription.api.SubscriptionBaseTransitionType;
import org.killbill.billing.subscription.api.user.SubscriptionBaseTransitionDataIterator.Kind;
import org.killbill.billing.subscription.api.user.SubscriptionBaseTransitionDataIterator.Order;
import org.killbill.billing.subscription.api.user.SubscriptionBaseTransitionDataIterator.TimeLimit;
import org.killbill.billing.subscription.api.user.SubscriptionBaseTransitionDataIterator.Visibility;
import org.killbill.billing.subscription.events.SubscriptionBaseEvent;
import org.killbill.billing.subscription.events.SubscriptionBaseEvent.EventType;
import org.killbill.billing.subscription.events.phase.PhaseEvent;
import org.killbill.billing.subscription.events.user.ApiEvent;
import org.killbill.billing.subscription.events.user.ApiEventType;
import org.killbill.billing.subscription.exceptions.SubscriptionBaseError;
import org.killbill.billing.util.callcontext.CallContext;
import org.killbill.clock.Clock;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DefaultSubscriptionBase extends EntityBase implements SubscriptionBase {
private static final Logger log = LoggerFactory.getLogger(DefaultSubscriptionBase.class);
private final Clock clock;
private final SubscriptionBaseApiService apiService;
//
// Final subscription fields
//
private final UUID bundleId;
private final DateTime alignStartDate;
private final DateTime bundleStartDate;
private final ProductCategory category;
private final boolean migrated;
//
// Those can be modified through non User APIs, and a new SubscriptionBase
// object would be created
//
private final long activeVersion;
private final DateTime chargedThroughDate;
//
// User APIs (create, change, cancelWithRequestedDate,...) will recompute those each time,
// so the user holding that subscription object get the correct state when
// the call completes
//
private LinkedList<SubscriptionBaseTransition> transitions;
// Low level events are ONLY used for Repair APIs
protected List<SubscriptionBaseEvent> events;
public List<SubscriptionBaseEvent> getEvents() {
return events;
}
// Transient object never returned at the API
public DefaultSubscriptionBase(final SubscriptionBuilder builder) {
this(builder, null, null);
}
public DefaultSubscriptionBase(final SubscriptionBuilder builder, @Nullable final SubscriptionBaseApiService apiService, @Nullable final Clock clock) {
super(builder.getId(), builder.getCreatedDate(), builder.getUpdatedDate());
this.apiService = apiService;
this.clock = clock;
this.bundleId = builder.getBundleId();
this.alignStartDate = builder.getAlignStartDate();
this.bundleStartDate = builder.getBundleStartDate();
this.category = builder.getCategory();
this.activeVersion = builder.getActiveVersion();
this.chargedThroughDate = builder.getChargedThroughDate();
this.migrated = builder.isMigrated();
}
// Used for API to make sure we have a clock and an apiService set before we return the object
public DefaultSubscriptionBase(final DefaultSubscriptionBase internalSubscription, final SubscriptionBaseApiService apiService, final Clock clock) {
super(internalSubscription.getId(), internalSubscription.getCreatedDate(), internalSubscription.getUpdatedDate());
this.apiService = apiService;
this.clock = clock;
this.bundleId = internalSubscription.getBundleId();
this.alignStartDate = internalSubscription.getAlignStartDate();
this.bundleStartDate = internalSubscription.getBundleStartDate();
this.category = internalSubscription.getCategory();
this.activeVersion = internalSubscription.getActiveVersion();
this.chargedThroughDate = internalSubscription.getChargedThroughDate();
this.migrated = internalSubscription.isMigrated();
this.transitions = new LinkedList<SubscriptionBaseTransition>(internalSubscription.getAllTransitions());
this.events = internalSubscription.getEvents();
}
@Override
public UUID getBundleId() {
return bundleId;
}
@Override
public DateTime getStartDate() {
return transitions.get(0).getEffectiveTransitionTime();
}
@Override
public EntitlementState getState() {
final SubscriptionBaseTransition previousTransition = getPreviousTransition();
if (previousTransition != null) {
return previousTransition.getNextState();
}
final SubscriptionBaseTransition pendingTransition = getPendingTransition();
if (pendingTransition != null &&
(pendingTransition.getTransitionType().equals(SubscriptionBaseTransitionType.CREATE) ||
pendingTransition.getTransitionType().equals(SubscriptionBaseTransitionType.TRANSFER))) {
return EntitlementState.PENDING;
}
throw new IllegalStateException("Should return a valid EntitlementState");
}
@Override
public EntitlementSourceType getSourceType() {
if (transitions == null) {
return null;
}
if (isMigrated()) {
return EntitlementSourceType.MIGRATED;
} else {
final SubscriptionBaseTransitionData initialTransition = (SubscriptionBaseTransitionData) transitions.get(0);
switch (initialTransition.getApiEventType()) {
case TRANSFER:
return EntitlementSourceType.TRANSFERRED;
default:
return EntitlementSourceType.NATIVE;
}
}
}
@Override
public PlanPhase getCurrentPhase() {
return (getPreviousTransition() == null) ? null
: getPreviousTransition().getNextPhase();
}
@Override
public Plan getCurrentPlan() {
return (getPreviousTransition() == null) ? null
: getPreviousTransition().getNextPlan();
}
@Override
public PriceList getCurrentPriceList() {
return (getPreviousTransition() == null) ? null :
getPreviousTransition().getNextPriceList();
}
@Override
public DateTime getEndDate() {
final SubscriptionBaseTransition latestTransition = getPreviousTransition();
if (latestTransition != null && latestTransition.getNextState() == EntitlementState.CANCELLED) {
return latestTransition.getEffectiveTransitionTime();
}
return null;
}
@Override
public DateTime getFutureEndDate() {
if (transitions == null) {
return null;
}
final SubscriptionBaseTransitionDataIterator it = new SubscriptionBaseTransitionDataIterator(
clock, transitions, Order.ASC_FROM_PAST, Kind.SUBSCRIPTION,
Visibility.ALL, TimeLimit.FUTURE_ONLY);
while (it.hasNext()) {
final SubscriptionBaseTransition cur = it.next();
if (cur.getTransitionType() == SubscriptionBaseTransitionType.CANCEL) {
return cur.getEffectiveTransitionTime();
}
}
return null;
}
@Override
public boolean cancel(final CallContext context) throws SubscriptionBaseApiException {
return apiService.cancel(this, context);
}
@Override
public boolean cancelWithDate(final DateTime requestedDate, final CallContext context) throws SubscriptionBaseApiException {
return apiService.cancelWithRequestedDate(this, requestedDate, context);
}
@Override
public boolean cancelWithPolicy(final BillingActionPolicy policy, final CallContext context) throws SubscriptionBaseApiException {
return apiService.cancelWithPolicy(this, policy, context);
}
@Override
public boolean uncancel(final CallContext context)
throws SubscriptionBaseApiException {
return apiService.uncancel(this, context);
}
@Override
public DateTime changePlan(final String productName, final BillingPeriod term, final String priceList,
final List<PlanPhasePriceOverride> overrides, final CallContext context) throws SubscriptionBaseApiException {
return apiService.changePlan(this, productName, term, priceList, overrides, context);
}
@Override
public DateTime changePlanWithDate(final String productName, final BillingPeriod term, final String priceList, final List<PlanPhasePriceOverride> overrides,
final DateTime requestedDate, final CallContext context) throws SubscriptionBaseApiException {
return apiService.changePlanWithRequestedDate(this, productName, term, priceList, overrides, requestedDate, context);
}
@Override
public DateTime changePlanWithPolicy(final String productName, final BillingPeriod term, final String priceList,
final List<PlanPhasePriceOverride> overrides, final BillingActionPolicy policy, final CallContext context) throws SubscriptionBaseApiException {
return apiService.changePlanWithPolicy(this, productName, term, priceList, overrides, policy, context);
}
@Override
public SubscriptionBaseTransition getPendingTransition() {
if (transitions == null) {
return null;
}
final SubscriptionBaseTransitionDataIterator it = new SubscriptionBaseTransitionDataIterator(
clock, transitions, Order.ASC_FROM_PAST, Kind.SUBSCRIPTION,
Visibility.ALL, TimeLimit.FUTURE_ONLY);
return it.hasNext() ? it.next() : null;
}
@Override
public Product getLastActiveProduct() {
if (getState() == EntitlementState.CANCELLED) {
final SubscriptionBaseTransition data = getPreviousTransition();
return data.getPreviousPlan().getProduct();
} else {
final Plan currentPlan = getCurrentPlan();
// currentPlan can be null when playing with the clock (subscription created in the future)
return currentPlan == null ? null : currentPlan.getProduct();
}
}
@Override
public PriceList getLastActivePriceList() {
if (getState() == EntitlementState.CANCELLED) {
final SubscriptionBaseTransition data = getPreviousTransition();
return data.getPreviousPriceList();
} else {
return getCurrentPriceList();
}
}
@Override
public ProductCategory getLastActiveCategory() {
if (getState() == EntitlementState.CANCELLED) {
final SubscriptionBaseTransition data = getPreviousTransition();
return data.getPreviousPlan().getProduct().getCategory();
} else {
final Plan currentPlan = getCurrentPlan();
// currentPlan can be null when playing with the clock (subscription created in the future)
return currentPlan == null ? null : currentPlan.getProduct().getCategory();
}
}
@Override
public Plan getLastActivePlan() {
if (getState() == EntitlementState.CANCELLED) {
final SubscriptionBaseTransition data = getPreviousTransition();
return data.getPreviousPlan();
} else {
return getCurrentPlan();
}
}
@Override
public PlanPhase getLastActivePhase() {
if (getState() == EntitlementState.CANCELLED) {
final SubscriptionBaseTransition data = getPreviousTransition();
return data.getPreviousPhase();
} else {
return getCurrentPhase();
}
}
@Override
public BillingPeriod getLastActiveBillingPeriod() {
if (getState() == EntitlementState.CANCELLED) {
final SubscriptionBaseTransition data = getPreviousTransition();
return data.getPreviousPlan().getRecurringBillingPeriod();
} else {
final Plan currentPlan = getCurrentPlan();
// currentPlan can be null when playing with the clock (subscription created in the future)
return currentPlan.getRecurringBillingPeriod();
}
}
@Override
public SubscriptionBaseTransition getPreviousTransition() {
if (transitions == null) {
return null;
}
final SubscriptionBaseTransitionDataIterator it = new SubscriptionBaseTransitionDataIterator(
clock, transitions, Order.DESC_FROM_FUTURE, Kind.SUBSCRIPTION,
Visibility.FROM_DISK_ONLY, TimeLimit.PAST_OR_PRESENT_ONLY);
return it.hasNext() ? it.next() : null;
}
@Override
public ProductCategory getCategory() {
return category;
}
public DateTime getBundleStartDate() {
return bundleStartDate;
}
@Override
public DateTime getChargedThroughDate() {
return chargedThroughDate;
}
@Override
public boolean isMigrated() {
return migrated;
}
@Override
public List<SubscriptionBaseTransition> getAllTransitions() {
if (transitions == null) {
return Collections.emptyList();
}
final List<SubscriptionBaseTransition> result = new ArrayList<SubscriptionBaseTransition>();
final SubscriptionBaseTransitionDataIterator it = new SubscriptionBaseTransitionDataIterator(clock, transitions, Order.ASC_FROM_PAST, Kind.ALL, Visibility.ALL, TimeLimit.ALL);
while (it.hasNext()) {
result.add(it.next());
}
return result;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((id == null) ? 0 : id.hashCode());
return result;
}
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final DefaultSubscriptionBase other = (DefaultSubscriptionBase) obj;
if (id == null) {
if (other.id != null) {
return false;
}
} else if (!id.equals(other.id)) {
return false;
}
return true;
}
public SubscriptionBaseTransitionData getTransitionFromEvent(final SubscriptionBaseEvent event, final int seqId) {
if (transitions == null || event == null) {
return null;
}
SubscriptionBaseTransitionData prev = null;
for (final SubscriptionBaseTransition cur : transitions) {
final SubscriptionBaseTransitionData curData = (SubscriptionBaseTransitionData) cur;
if (curData.getId().equals(event.getId())) {
final SubscriptionBaseTransitionData withSeq = new SubscriptionBaseTransitionData(curData, seqId);
return withSeq;
}
if (curData.getTotalOrdering() < event.getTotalOrdering()) {
prev = curData;
}
}
// Since UNCANCEL are not part of the transitions, we compute a new 'UNCANCEL' transition based on the event right before that UNCANCEL
// This is used to be able to send a bus event for uncancellation
if (prev != null && event.getType() == EventType.API_USER && ((ApiEvent) event).getApiEventType() == ApiEventType.UNCANCEL) {
final SubscriptionBaseTransitionData withSeq = new SubscriptionBaseTransitionData((SubscriptionBaseTransitionData) prev, EventType.API_USER, ApiEventType.UNCANCEL, seqId);
return withSeq;
}
return null;
}
public DateTime getAlignStartDate() {
return alignStartDate;
}
public long getLastEventOrderedId() {
final SubscriptionBaseTransitionDataIterator it = new SubscriptionBaseTransitionDataIterator(
clock, transitions, Order.DESC_FROM_FUTURE, Kind.SUBSCRIPTION,
Visibility.FROM_DISK_ONLY, TimeLimit.ALL);
return it.hasNext() ? ((SubscriptionBaseTransitionData) it.next()).getTotalOrdering() : -1L;
}
public long getActiveVersion() {
return activeVersion;
}
public List<SubscriptionBaseTransition> getBillingTransitions() {
if (transitions == null) {
return Collections.emptyList();
}
final List<SubscriptionBaseTransition> result = new ArrayList<SubscriptionBaseTransition>();
final SubscriptionBaseTransitionDataIterator it = new SubscriptionBaseTransitionDataIterator(
clock, transitions, Order.ASC_FROM_PAST, Kind.BILLING,
Visibility.ALL, TimeLimit.ALL);
// Remove anything prior to first CREATE
boolean foundInitialEvent = false;
while (it.hasNext()) {
final SubscriptionBaseTransitionData curTransition = (SubscriptionBaseTransitionData) it.next();
if (!foundInitialEvent) {
foundInitialEvent = curTransition.getEventType() == EventType.API_USER &&
(curTransition.getApiEventType() == ApiEventType.CREATE ||
curTransition.getApiEventType() == ApiEventType.TRANSFER);
}
if (foundInitialEvent) {
result.add(curTransition);
}
}
return result;
}
public SubscriptionBaseTransitionData getLastTransitionForCurrentPlan() {
if (transitions == null) {
throw new SubscriptionBaseError(String.format("No transitions for subscription %s", getId()));
}
final SubscriptionBaseTransitionDataIterator it = new SubscriptionBaseTransitionDataIterator(clock,
transitions,
Order.DESC_FROM_FUTURE,
Kind.SUBSCRIPTION,
Visibility.ALL,
TimeLimit.PAST_OR_PRESENT_ONLY);
while (it.hasNext()) {
final SubscriptionBaseTransitionData cur = (SubscriptionBaseTransitionData) it.next();
if (cur.getTransitionType() == SubscriptionBaseTransitionType.CREATE
|| cur.getTransitionType() == SubscriptionBaseTransitionType.TRANSFER
|| cur.getTransitionType() == SubscriptionBaseTransitionType.CHANGE) {
return cur;
}
}
throw new SubscriptionBaseError(String.format("Failed to find InitialTransitionForCurrentPlan id = %s", getId()));
}
public boolean isSubscriptionFutureCancelled() {
return getFutureEndDate() != null;
}
public DateTime getPlanChangeEffectiveDate(final BillingActionPolicy policy) {
final DateTime candidateResult;
switch (policy) {
case IMMEDIATE:
candidateResult = clock.getUTCNow();
break;
case END_OF_TERM:
//
// If we have a chargedThroughDate that is 'up to date' we use it, if not default to now
// chargedThroughDate could exist and be less than now if:
// 1. account is not being invoiced, for e.g AUTO_INVOICING_OFF nis set
// 2. In the case if FIXED item CTD is set using startDate of the service period
//
candidateResult = (chargedThroughDate != null && chargedThroughDate.isAfter(clock.getUTCNow())) ? chargedThroughDate : clock.getUTCNow();
break;
default:
throw new SubscriptionBaseError(String.format(
"Unexpected policy type %s", policy.toString()));
}
return (candidateResult.compareTo(getStartDate()) < 0) ? getStartDate() : candidateResult;
}
public DateTime getCurrentPhaseStart() {
if (transitions == null) {
throw new SubscriptionBaseError(String.format(
"No transitions for subscription %s", getId()));
}
final SubscriptionBaseTransitionDataIterator it = new SubscriptionBaseTransitionDataIterator(
clock, transitions, Order.DESC_FROM_FUTURE, Kind.SUBSCRIPTION,
Visibility.ALL, TimeLimit.PAST_OR_PRESENT_ONLY);
while (it.hasNext()) {
final SubscriptionBaseTransitionData cur = (SubscriptionBaseTransitionData) it.next();
if (cur.getTransitionType() == SubscriptionBaseTransitionType.PHASE
|| cur.getTransitionType() == SubscriptionBaseTransitionType.TRANSFER
|| cur.getTransitionType() == SubscriptionBaseTransitionType.CREATE
|| cur.getTransitionType() == SubscriptionBaseTransitionType.CHANGE) {
return cur.getEffectiveTransitionTime();
}
}
throw new SubscriptionBaseError(String.format(
"Failed to find CurrentPhaseStart id = %s", getId().toString()));
}
public void rebuildTransitions(final List<SubscriptionBaseEvent> inputEvents, final Catalog catalog) throws CatalogApiException {
if (inputEvents == null) {
return;
}
this.events = inputEvents;
UUID nextUserToken = null;
UUID nextEventId = null;
DateTime nextCreatedDate = null;
EntitlementState nextState = null;
String nextPlanName = null;
String nextPhaseName = null;
UUID prevEventId = null;
DateTime prevCreatedDate = null;
EntitlementState previousState = null;
PriceList previousPriceList = null;
Plan previousPlan = null;
PlanPhase previousPhase = null;
transitions = new LinkedList<SubscriptionBaseTransition>();
for (final SubscriptionBaseEvent cur : inputEvents) {
if (!cur.isActive() || cur.getActiveVersion() < activeVersion) {
continue;
}
ApiEventType apiEventType = null;
boolean isFromDisk = true;
nextEventId = cur.getId();
nextCreatedDate = cur.getCreatedDate();
switch (cur.getType()) {
case PHASE:
final PhaseEvent phaseEV = (PhaseEvent) cur;
nextPhaseName = phaseEV.getPhase();
break;
case API_USER:
final ApiEvent userEV = (ApiEvent) cur;
apiEventType = userEV.getApiEventType();
isFromDisk = userEV.isFromDisk();
switch (apiEventType) {
case TRANSFER:
case CREATE:
prevEventId = null;
prevCreatedDate = null;
previousState = null;
previousPlan = null;
previousPhase = null;
previousPriceList = null;
nextState = EntitlementState.ACTIVE;
nextPlanName = userEV.getEventPlan();
nextPhaseName = userEV.getEventPlanPhase();
break;
case CHANGE:
nextPlanName = userEV.getEventPlan();
nextPhaseName = userEV.getEventPlanPhase();
break;
case CANCEL:
nextState = EntitlementState.CANCELLED;
nextPlanName = null;
nextPhaseName = null;
break;
case UNCANCEL:
default:
throw new SubscriptionBaseError(String.format(
"Unexpected UserEvent type = %s", userEV
.getApiEventType().toString()));
}
break;
default:
throw new SubscriptionBaseError(String.format(
"Unexpected Event type = %s", cur.getType()));
}
Plan nextPlan = null;
PlanPhase nextPhase = null;
PriceList nextPriceList = null;
nextPlan = (nextPlanName != null) ? catalog.findPlan(nextPlanName, cur.getEffectiveDate(), getAlignStartDate()) : null;
nextPhase = (nextPhaseName != null) ? catalog.findPhase(nextPhaseName, cur.getEffectiveDate(), getAlignStartDate()) : null;
nextPriceList = (nextPlan != null) ? nextPlan.getPriceList() : null;
final SubscriptionBaseTransitionData transition = new SubscriptionBaseTransitionData(
cur.getId(), id, bundleId, cur.getType(), apiEventType,
cur.getEffectiveDate(),
prevEventId, prevCreatedDate,
previousState, previousPlan, previousPhase,
previousPriceList,
nextEventId, nextCreatedDate,
nextState, nextPlan, nextPhase,
nextPriceList, cur.getTotalOrdering(),
cur.getCreatedDate(),
nextUserToken,
isFromDisk);
transitions.add(transition);
previousState = nextState;
previousPlan = nextPlan;
previousPhase = nextPhase;
previousPriceList = nextPriceList;
prevEventId = nextEventId;
prevCreatedDate = nextCreatedDate;
}
}
}