/*
* Copyright 2010-2013 Ning, Inc.
*
* Ning 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 com.ning.billing.entitlement.api;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.inject.Inject;
import org.joda.time.DateTimeZone;
import com.ning.billing.ErrorCode;
import com.ning.billing.ObjectType;
import com.ning.billing.callcontext.InternalCallContext;
import com.ning.billing.callcontext.InternalTenantContext;
import com.ning.billing.entitlement.AccountEntitlements;
import com.ning.billing.entitlement.EntitlementInternalApi;
import com.ning.billing.entitlement.EventsStream;
import com.ning.billing.entitlement.api.svcs.DefaultEntitlementInternalApi;
import com.ning.billing.entitlement.engine.core.EntitlementUtils;
import com.ning.billing.subscription.api.SubscriptionBase;
import com.ning.billing.subscription.api.SubscriptionBaseInternalApi;
import com.ning.billing.subscription.api.user.SubscriptionBaseApiException;
import com.ning.billing.subscription.api.user.SubscriptionBaseBundle;
import com.ning.billing.util.cache.Cachable.CacheType;
import com.ning.billing.util.cache.CacheControllerDispatcher;
import com.ning.billing.util.callcontext.CallContext;
import com.ning.billing.util.callcontext.InternalCallContextFactory;
import com.ning.billing.util.callcontext.TenantContext;
import com.ning.billing.util.customfield.ShouldntHappenException;
import com.ning.billing.util.dao.NonEntityDao;
import com.google.common.base.Optional;
import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.collect.Ordering;
public class DefaultSubscriptionApi implements SubscriptionApi {
private static final Comparator<SubscriptionBundle> SUBSCRIPTION_BUNDLE_COMPARATOR = new Comparator<SubscriptionBundle>() {
@Override
public int compare(final SubscriptionBundle o1, final SubscriptionBundle o2) {
final int compared = o1.getOriginalCreatedDate().compareTo(o2.getOriginalCreatedDate());
if (compared != 0) {
return compared;
} else {
final int compared2 = o1.getUpdatedDate().compareTo(o2.getUpdatedDate());
if (compared2 != 0) {
return compared2;
} else {
// Default, stable, ordering
return o1.getId().compareTo(o2.getId());
}
}
}
};
private final EntitlementInternalApi entitlementInternalApi;
private final SubscriptionBaseInternalApi subscriptionBaseInternalApi;
private final InternalCallContextFactory internalCallContextFactory;
private final NonEntityDao nonEntityDao;
private final CacheControllerDispatcher cacheControllerDispatcher;
private final EntitlementUtils entitlementUtils;
@Inject
public DefaultSubscriptionApi(final EntitlementInternalApi entitlementInternalApi, final SubscriptionBaseInternalApi subscriptionInternalApi,
final InternalCallContextFactory internalCallContextFactory, final EntitlementUtils entitlementUtils, final NonEntityDao nonEntityDao, final CacheControllerDispatcher cacheControllerDispatcher) {
this.entitlementInternalApi = entitlementInternalApi;
this.subscriptionBaseInternalApi = subscriptionInternalApi;
this.internalCallContextFactory = internalCallContextFactory;
this.nonEntityDao = nonEntityDao;
this.entitlementUtils = entitlementUtils;
this.cacheControllerDispatcher = cacheControllerDispatcher;
}
@Override
public Subscription getSubscriptionForEntitlementId(final UUID entitlementId, final TenantContext context) throws SubscriptionApiException {
final Long accountRecordId = nonEntityDao.retrieveAccountRecordIdFromObject(entitlementId, ObjectType.SUBSCRIPTION, cacheControllerDispatcher.getCacheController(CacheType.ACCOUNT_RECORD_ID));
final UUID accountId = nonEntityDao.retrieveIdFromObject(accountRecordId, ObjectType.ACCOUNT);
// Retrieve entitlements
final AccountEntitlements accountEntitlements;
try {
accountEntitlements = entitlementInternalApi.getAllEntitlementsForAccountId(accountId, context);
} catch (EntitlementApiException e) {
throw new SubscriptionApiException(e);
}
// Build subscriptions
final Iterable<Subscription> accountSubscriptions = Iterables.<Subscription>concat(buildSubscriptionsFromEntitlements(accountEntitlements).values());
return Iterables.<Subscription>find(accountSubscriptions,
new Predicate<Subscription>() {
@Override
public boolean apply(final Subscription subscription) {
return subscription.getId().equals(entitlementId);
}
});
}
@Override
public SubscriptionBundle getSubscriptionBundle(final UUID bundleId, final TenantContext context) throws SubscriptionApiException {
final Long accountRecordId = nonEntityDao.retrieveAccountRecordIdFromObject(bundleId, ObjectType.BUNDLE, cacheControllerDispatcher.getCacheController(CacheType.ACCOUNT_RECORD_ID));
final UUID accountId = nonEntityDao.retrieveIdFromObject(accountRecordId, ObjectType.ACCOUNT);
final Optional<SubscriptionBundle> bundleOptional = Iterables.<SubscriptionBundle>tryFind(getSubscriptionBundlesForAccount(accountId, context),
new Predicate<SubscriptionBundle>() {
@Override
public boolean apply(final SubscriptionBundle bundle) {
return bundle.getId().equals(bundleId);
}
});
if (!bundleOptional.isPresent()) {
throw new SubscriptionApiException(ErrorCode.SUB_GET_INVALID_BUNDLE_ID, bundleId);
} else {
return bundleOptional.get();
}
}
@Override
public void updateExternalKey(final UUID uuid, final String newExternalKey, final CallContext callContext) {
final InternalCallContext internalContext = internalCallContextFactory.createInternalCallContext(callContext);
subscriptionBaseInternalApi.updateExternalKey(uuid, newExternalKey, internalContext);
}
@Override
public List<SubscriptionBundle> getSubscriptionBundlesForAccountIdAndExternalKey(final UUID accountId, final String externalKey, final TenantContext context) throws SubscriptionApiException {
return ImmutableList.<SubscriptionBundle>copyOf(Iterables.<SubscriptionBundle>filter(getSubscriptionBundlesForAccount(accountId, context),
new Predicate<SubscriptionBundle>() {
@Override
public boolean apply(final SubscriptionBundle bundle) {
return bundle.getExternalKey().equals(externalKey);
}
}));
}
@Override
public SubscriptionBundle getActiveSubscriptionBundleForExternalKey(final String externalKey, final TenantContext context) throws SubscriptionApiException {
final InternalTenantContext internalContext = internalCallContextFactory.createInternalTenantContext(context);
try {
final UUID activeSubscriptionIdForKey = entitlementUtils.getFirstActiveSubscriptionIdForKeyOrNull(externalKey, internalContext);
if (activeSubscriptionIdForKey == null) {
throw new SubscriptionApiException(new SubscriptionBaseApiException(ErrorCode.SUB_CREATE_ACTIVE_BUNDLE_KEY_EXISTS, externalKey));
}
final SubscriptionBase subscriptionBase = subscriptionBaseInternalApi.getSubscriptionFromId(activeSubscriptionIdForKey, internalContext);
return getSubscriptionBundle(subscriptionBase.getBundleId(), context);
} catch (SubscriptionBaseApiException e) {
throw new SubscriptionApiException(e);
}
}
@Override
public List<SubscriptionBundle> getSubscriptionBundlesForExternalKey(final String externalKey, final TenantContext context) throws SubscriptionApiException {
final InternalTenantContext internalContext = internalCallContextFactory.createInternalTenantContext(context);
final List<SubscriptionBaseBundle> baseBundles = subscriptionBaseInternalApi.getBundlesForKey(externalKey, internalContext);
final List<SubscriptionBundle> result = new ArrayList<SubscriptionBundle>(baseBundles.size());
for (final SubscriptionBaseBundle cur : baseBundles) {
final SubscriptionBundle bundle = getSubscriptionBundle(cur.getId(), context);
result.add(bundle);
}
return result;
}
@Override
public List<SubscriptionBundle> getSubscriptionBundlesForAccountId(final UUID accountId, final TenantContext context) throws SubscriptionApiException {
return getSubscriptionBundlesForAccount(accountId, context);
}
private List<SubscriptionBundle> getSubscriptionBundlesForAccount(final UUID accountId, final TenantContext tenantContext) throws SubscriptionApiException {
// Retrieve entitlements
final AccountEntitlements accountEntitlements;
try {
accountEntitlements = entitlementInternalApi.getAllEntitlementsForAccountId(accountId, tenantContext);
} catch (EntitlementApiException e) {
throw new SubscriptionApiException(e);
}
// Build subscriptions
final Map<UUID, List<Subscription>> subscriptionsPerBundle = buildSubscriptionsFromEntitlements(accountEntitlements);
final DateTimeZone accountTimeZone = accountEntitlements.getAccount().getTimeZone();
// Build subscription bundles
final List<SubscriptionBundle> bundles = new LinkedList<SubscriptionBundle>();
for (final UUID bundleId : subscriptionsPerBundle.keySet()) {
final List<Subscription> subscriptionsForBundle = subscriptionsPerBundle.get(bundleId);
final String externalKey = subscriptionsForBundle.get(0).getExternalKey();
final SubscriptionBundleTimeline timeline = new DefaultSubscriptionBundleTimeline(accountTimeZone,
accountId,
bundleId,
externalKey,
accountEntitlements.getEntitlements().get(bundleId));
final SubscriptionBaseBundle baseBundle = accountEntitlements.getBundles().get(bundleId);
final SubscriptionBundle subscriptionBundle = new DefaultSubscriptionBundle(bundleId,
accountId,
externalKey,
subscriptionsForBundle,
timeline,
baseBundle.getOriginalCreatedDate(),
baseBundle.getCreatedDate(),
baseBundle.getUpdatedDate());
bundles.add(subscriptionBundle);
}
// Sort the results for predictability
return Ordering.<SubscriptionBundle>from(SUBSCRIPTION_BUNDLE_COMPARATOR).sortedCopy(bundles);
}
private Map<UUID, List<Subscription>> buildSubscriptionsFromEntitlements(final AccountEntitlements accountEntitlements) {
final Map<UUID, List<Subscription>> subscriptionsPerBundle = new HashMap<UUID, List<Subscription>>();
for (final UUID bundleId : accountEntitlements.getEntitlements().keySet()) {
if (subscriptionsPerBundle.get(bundleId) == null) {
subscriptionsPerBundle.put(bundleId, new LinkedList<Subscription>());
}
for (final Entitlement entitlement : accountEntitlements.getEntitlements().get(bundleId)) {
if (entitlement instanceof DefaultEntitlement) {
subscriptionsPerBundle.get(bundleId).add(new DefaultSubscription((DefaultEntitlement) entitlement));
} else {
throw new ShouldntHappenException("Entitlement should be a DefaultEntitlement instance");
}
}
}
return subscriptionsPerBundle;
}
}